GS88236BB-150IT [GSI]
Cache SRAM, 256KX36, 7.5ns, CMOS, PBGA119, FPBGA-119;型号: | GS88236BB-150IT |
厂家: | GSI TECHNOLOGY |
描述: | Cache SRAM, 256KX36, 7.5ns, CMOS, PBGA119, FPBGA-119 静态存储器 内存集成电路 |
文件: | 总38页 (文件大小:1328K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
GS88218/36BB/D-333/300/250/200/150
333 MHz–150 MHz
119- and 165-Bump BGA
Commercial Temp
Industrial Temp
512K x 18, 256K x 36
9Mb SCD/DCD Sync Burst SRAMs
2.5 V or 3.3 V V
DD
2.5 V or 3.3 V I/O
Flow Through/Pipeline Reads
Features
The function of the Data Output register can be controlled by the
user via the FT mode . Holding the FT mode pin low places the
RAM in Flow Through mode, causing output data to bypass the
Data Output Register. Holding FT high places the RAM in Pipeline
mode, activating the rising-edge-triggered Data Output Register.
• FT pin for user-configurable flow through or pipeline operation
• Single/Dual Cycle Deselect selectable
• IEEE 1149.1 JTAG-compatible Boundary Scan
• On-chip read parity checking; even or odd selectable
• ZQ mode pin for user-selectable high/low output drive
• 2.5 V or 3.3 V +10%/–10% core power supply
• 2.5 V or 3.3 V I/O supply
• LBO pin for Linear or Interleaved Burst mode
• Internal input resistors on mode pins allow floating mode pins
• Default to SCD x18/x36 Interleaved Pipeline mode
• Byte Write (BW) and/or Global Write (GW) operation
• Internal self-timed write cycle
SCD and DCD Pipelined Reads
The GS88218/36B is a SCD (Single Cycle Deselect) and DCD
(Dual Cycle Deselect) pipelined synronous SRAM. DCD
SRAMs pipeline disable commands to te same degree as read
commands. SCD SRAMs pipeline deselect commands one
stage less than read commds. SCD RAMs begin turning off
their outputs immediately er the deselect command has been
captured in the input registers. DCD RAMs hold the deselect
command for one full cycle and then begin turning off their
outputs just after he second rising edge of clock. The user may
configure this SRAM for either mode of operation using the
SCD mode input.
• Automatic power-down for portable applications
• JEDEC-standard 119- and 165-bump BGA packages
• RoHS-compliant 119-bump and 165-bump BGA packages
available
Functional Description
Applications
Byte Write and Global Write
Byte rite operation is performed by using Byte Write enable
(BW) input combined with one or more individual byte write
signals (Bx). In addition, Global Write (GW) is available for
writing all bytes at one time, regardless of the Byte Write
control inputs.
The GS88218/36B is a 9,437,184-bit high performance
synchronous SRAM with a 2-bit burst address counter. Although
of a type originally developed for Level 2 Cache applications
supporting high performance CPUs, the device now finds
application in synchronous SRAM applications, ranging from
DSP main store to networking chip set support.
FLXDrive™
The ZQ pin allows selection between high drive strength (ZQ
low) for multi-drop bus applications and normal drive strength
(ZQ floating or high) point-to-point applications. See the
Output Driver Characteristics chart for details.
Controls
Addresses, data I/Os, chip enable (E1), address burst control
inputs (ADSP, ADSC, ADV), and write control inputs (Bx, BW,
GW) are synchronous and are controlled by a positive-edge-
triggered clock input (CK). Output enable (G) and power down
control (ZZ) are asynchronous inputs. Bucycles can be initiated
with either ADSP or ADSC inputs. In Burst mode, subsequent
burst addresses are generated internally and are controlled by
ADV. The burst address couer may be configured to count in
either linear or interleave order with the Linear Burst Order (LBO)
input. The Burst function need not be used. New addresses can be
loaded on every cycle th no degradation of chip performance.
Sleep Mode
Low power (Sleep mode) is attained through the assertion
(High) of the ZZ signal, or by stopping the clock (CK).
Memory data is retained during Sleep mode.
Core and Interface Voltages
The GS88218/36B operates on a 2.5 V or 3.3 V power supply.
All input are 3.3 V and 2.5 V compatible. Separate output
power (V
) pins are used to decouple output noise from the
DDQ
internal circuits and are 3.3 V and 2.5 V compatible.
Paramter Synopsis
-333
-300
-250
-200
-150
Unit
tKQ
2.5
3.0
2.5
3.3
2.5
4.0
3.0
5.0
3.8
6.7
ns
ns
tCycle
Pipeline
3-1-1-1
Curr (x18)
Curr (x32/x36)
250
290
230
265
200
230
170
195
140
160
mA
mA
tKQ
4.5
4.5
5.0
5.0
5.5
5.5
6.5
6.5
7.5
7.5
ns
ns
tCycle
Flow Through
2-1-1-1
Curr (x18)
Curr (x32/x36)
200
230
185
210
160
185
140
160
128
145
mA
mA
Rev: 1.04a 6/2009
1/38
© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
165 Bump BGA—x18 Commom I/O—Top View (Package D)
1
2
3
4
5
6
7
8
9
10
A
11
A
A
B
C
D
E
F
NC
A
E1
BB
NC
E3
BW
ADSC
ADV
A
B
C
D
E
F
NC
NC
A
E2
NC
BA
CK
GW
G
ADSP
A
NC
NC
NC
NC
NC
ZQ
NC
DQA
DQA
DQA
DQA
DQA
ZZ
NC
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
DDQ
DDQ
DDQ
DDQ
DDQ
SS
DD
DD
DD
DD
DD
DD
DD
DD
DD
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
DD
DD
DD
D
DD
DD
DD
DD
DD
DDQ
DDQ
DDQ
DDQ
DDQ
NC
DQB
DQB
DQB
DQB
MCL
NC
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
NC
NC
G
H
J
NC
G
H
J
FT
NC
NC
DQB
DQB
DQB
DQB
DQB
NC
V
V
DQA
DQA
DQA
DQA
NC
A
NC
DDQ
DDQ
DDQ
DDQ
DDQ
DDQ
DDQ
DDQ
K
L
NC
V
V
V
V
V
V
V
V
NC
K
L
NC
NC
M
N
P
R
NC
NC
M
N
P
R
SCD
NC
V
NC
TDI
NC
A1
A0
NC
V
NC
DDQ
SS
SS
DDQ
A
A
A
TDO
TCK
A
A
A
A
LBO
NC
A
TMS
A
A
A
11 x 15 Bump BGA—13mm x 15 mm Body—1.0 mm Bump Pitch
Rev: 1.04a 6/2009
2/38
© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
165 Bump BGA—x36 Common I/O—Top View (Package D)
1
2
3
4
5
6
7
8
9
10
A
11
A
B
C
D
E
F
NC
A
E1
BC
BB
E3
BW
ADSC
ADV
NC
A
B
C
D
E
F
NC
A
E2
BD
BA
CK
GW
G
ADSP
A
NC
DQB
DQB
DQB
DQB
DQB
ZZ
DQC
DQC
DQC
DQC
DQC
FT
NC
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
NC
DDQ
DDQ
DDQ
DDQ
DDQ
SS
DD
DD
DD
DD
DD
DD
DD
DD
DD
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
DD
DD
DD
D
DD
DD
DD
DD
DD
DDQ
DDQ
DDQ
DDQ
DDQ
DQC
DQC
DQC
DQC
MCL
DQD
DQD
DQD
DQD
SCD
NC
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
DQB
DQB
DQB
DQB
ZQ
G
H
J
G
H
J
NC
NC
DQD
DQD
DQD
DQD
DQD
NC
V
V
DQA
DQA
DQA
DQA
NC
DQA
DQA
DQA
DQA
DQA
A17
A
DDQ
DDQ
DDQ
DDQ
DDQ
DDQ
DDQ
DDQ
K
L
V
V
V
V
V
V
V
V
K
L
M
N
P
R
M
N
P
R
V
NC
TDI
NC
A1
A0
NC
V
SS
DDQ
SS
DDQ
A
A
A
TDO
TCK
A
A
A
A
LBO
NC
A
TMS
A
A
11 x 15 Bump BGA—13mm x 15 mm Body—1.0 mm Bump Pitch
Rev: 1.04a 6/2009
3/38
© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
GS88236B Pad Out—119-Bump BGA—Top View (Package B)
1
2
A
3
4
ADSP
ADSC
VDD
ZQ
5
A
6
A
7
VDDQ
NC
A
VDDQ
NC
A
B
C
D
E
F
E2
A
A
A
NC
A
A
A
A
NC
DQC
DQC
VDDQ
DQC
DQC
VDDQ
DQD
DQD
VDDQ
DQD
DQD
NC
DQPC
DQC
DQC
DQC
DQC
VDD
DQD
DQD
DQD
DQD
DQPD
A
VSS
VSS
VSS
BC
VSS
VSS
VSS
BB
DQPB
DQB
DQB
DQB
DQB
VDD
DQA
DQA
DQA
DQA
DQPA
A
DQB
DQB
VDDQ
DQB
DQB
VDDQ
DQA
DQA
VDDQ
DQA
DQA
PE
E1
G
ADV
GW
VDD
CK
G
H
J
VSS
NC
VSS
BD
VSS
NC
VSS
BA
K
L
SCD
BW
A1
VSS
VSS
VSS
LBO
A
VSS
VSS
VSS
FT
M
N
P
R
T
A0
VDD
NC
NC
A
A
NC
ZZ
VDDQ
TMS
TDI
TCK
TDO
NC
VDDQ
U
Rev: 1.04a 6/2009
4/38
© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
GS88218B Pad Out—119-Bump BGA—Top View (Package B)
1
2
A
3
4
ADSP
ADSC
VDD
ZQ
5
A
6
A
7
A
B
C
D
E
F
VDDQ
NC
A
VDDQ
NC
E2
A
A
A
NC
A
A
A
A16
DQPA
NC
DQA
NC
DQA
VDD
NC
DQA
NC
DQA
NC
A
NC
DQB
NC
NC
DQB
NC
DQB
NC
VDD
DQB
NC
DQB
NC
DQPB
A
VSS
VSS
VSS
BB
VSS
VSS
VSS
NC
VSS
NC
VSS
BA
NC
E1
DQA8
VDDQ
DQA
NC
VDDQ
NC
G
G
H
J
ADV
GW
VDD
CK
DQB
VDDQ
NC
VSS
NC
VSS
NC
VSS
VSS
VSS
LBO
A
VDDQ
DQA
NC
K
L
DQB
VDDQ
DQB
NC
SCD
BW
A1
VSS
VSS
VSS
FT
VDDQ
NC
M
N
P
R
T
A0
DQA
PE
NC
VDD
NC
NC
A
A
A
ZZ
VDDQ
TMS
TDI
TCK
TDO
NC
VDDQ
U
Rev: 1.04a 6/2009
5/38
© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
GS88218/36 BGA Pin Description
Symbol
A0, A1
A
Type
Description
I
I
Address field LSBs and Address Counter Preset Inputs
Address Inputs
DQA
DQB
DQC
DQD
I/O
Data Input and Output pins
BA, BB, BC, BD
I
—
—
I
Byte Write Enable for DQA, DQB, DQC, DQD I/Os; active low
No Connect
NC
NC
No Connect
CK
Clock Input Signal; active
BW
I
Byte Write—Writes all enabled bytes; active low
Global Write Enable—Writes all bytes; active low
Chip Enable; active low
GW
I
E1
I
E3
I
Chip Enable; active low
E2
I
Chip Enable; active high
G
I
Oput Enable; active low
ADV
I
Burst ddress counter advance enable; active l0w
Address Strobe (Processor, Cache Controller); active low
Sleep mode control; active high
ADSC, ADSP
I
ZZ
FT
I
I
Flow Through or Pipeline mode; active low
Linear Burst Order mode; active low
Parity Enable; active low (119-bump BGA only)
LBO
PE
I
I
FLXDrive Output Impedance Control (Low = Low Impedance [High Drive], High = High Impedance [Low
Drive])
ZQ
I
I
I
Scan Test Mode Select
Scan Test Data In
TMS
TDI
O
I
Scan Test Data Out
TDO
TCK
MCL
SCD
Scan Test Clock
—
—
I
Must Connect Low
Single Cycle Deselect/Dual Cyle Deselect Mode Control
Core power supply
V
DD
V
I
I/O and Core Ground
SS
V
I
Output driver power supply
DDQ
Rev: 1.04a 6/2009
6/38
© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
GS88218/36B Block Diagram
Register
A0–An
D
Q
A0
A1
A0
A1
D0
D1
Q0
Q1
Counter
Load
A
LBO
ADV
Memory
Array
CK
ADSC
ADSP
Q
D
Register
GW
BW
BA
D
Q
Register
36
36
D
Q
BB
BC
BD
4
Register
D
Q
Register
D
Q
Register
D
Q
Register
E1
E2
E3
D
Q
Register
D
Q
FT
G
1
Power Down
Control
DQx1–DQx9
ZZ
Note: Only x36 version shown for simplicity.
Rev: 1.04a 6/2009
7/38
© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
Mode Pin Functions
Mode Name
Pin Name
State
Function
Linear Burst
Interleaved Burst
Flow Through
Pipeline
L
Burst Order Control
LBO
H
L
H or NC
L or NC
H
Output Register Control
FT
ZZ
Active
Power Down Control
Standby, I = I
DD SB
L
Dual Cycle Dselect
Single Cycle Deselect
Single/Dual Cycle Deselect Control
FLXDrive Output Impedance Control
9th Bit Enable
SCD
ZQ
H or NC
L
Drive (Low Impedance)
Low Drive (High Impedance)
Activate DQPx I/Os (x18/x36 mode)
Deactivate DQPx I/Os (x16/x32 mode)
H or NC
L or NC
H
PE
Note:
There are pull-up devices on the ZQ, SCD, and FT pins and a pull-down device on the ZZ and PE pins, so thoset input pins can be
unconnected and the chip will operate in the default states as specified in the above tables.
Burst Counter Sequences
Linear Burst Sequence
A[1:0] A[1:0] A[1:0] A[1:0]
Interleaved Burst Sequence
A[1:0] A[1:0] A[1:0] A[1:0]
1st address
2nd address
3rd address
4th address
00
01
10
11
01
10
11
00
10
11
00
01
11
00
01
10
1st address
2nd address
3rd address
4th address
00
01
10
11
01
00
11
10
10
11
00
01
11
10
01
00
Note:
The burst counter wraps to initil state on the 5th clock.
Note:
The burst counter wraps to initial state on the 5th clock.
BPR 1999.05.18
Rev: 1.04a 6/2009
8/38
© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
Byte Write Truth Table
Function
Read
GW
H
BW
H
L
BA
X
BB
X
BC
X
BD
X
Notes
1
Write No Bytes
Write byte a
Write byte b
Write byte c
Write byte d
Write all bytes
H
H
L
H
H
L
H
H
H
L
H
H
H
L
1
H
L
2, 3
H
L
H
H
H
L
2, 3
H
L
H
H
L
2, 3, 4
2, 3, 4
2, 3, 4
H
L
H
L
H
L
L
Write all bytes
L
X
X
X
X
X
Notes:
1. All byte outputs are active in read cycles regardless of the state of Byte Write Enable inputs, BA, BB, BC and/or BD.
2. Byte Write Enable inputs BA, BB, BC and/or BD may be used in any combination with BW to write single or multiple bytes.
3. All byte I/Os remain High-Z during all write operations regardless of the state of Byte Write Enable inputs.
4. Bytes “C” and “D” are only available on the x32 and x36 versions.
Rev: 1.04a 6/2009
9/38
© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
Synchronous Truth Table
Operation
State
Diagram
Address
Used
3
E1
E2
E3
ADSP ADSC ADV
W
DQ
Key
X
Deselect Cycle, Power Down
Deselect Cycle, Power Down
Deselect Cycle, Power Down
Deselect Cycle, Power Down
Deselect Cycle, Power Down
Read Cycle, Begin Burst
None
None
L
L
L
L
H
L
X
L
H
X
H
X
X
L
X
X
L
L
L
X
X
X
X
X
X
X
X
L
X
X
X
X
X
X
F
T
F
F
T
T
F
F
T
T
High-Z
X
High-Z
None
X
X
L
X
X
L
High-Z
None
X
L
High-Z
None
X
X
H
H
H
X
X
X
X
X
X
X
X
X
L
High-Z
External
External
External
Next
R
L
Q
Q
D
Q
Q
D
D
Q
Q
D
D
Read Cycle, Begin Burst
Write Cycle, Begin Burst
Read Cycle, Continue Burst
Read Cycle, Continue Burst
Write Cycle, Continue Burst
Write Cycle, Continue Burst
Read Cycle, Suspend Burst
Read Cycle, Suspend Burst
Write Cycle, Suspend Burst
R
L
L
X
H
X
H
X
H
X
H
L
L
X
X
X
X
X
X
X
X
H
H
H
X
H
X
H
X
H
X
W
L
CR
CR
CW
CW
H
H
H
H
H
H
H
H
Next
L
Next
L
Next
L
Current
Current
Current
Current
H
H
H
H
Write Cycle, Suspend Burst
Notes:
1. X = Don’t Care, H = High, L = Low
2. E = T (True) if E2 = 1 and E1 = E3 = 0; E = F (False) if E2 = 0 or E1 = 1 or E3 = 1
3. W = T (True) and F (False) is defined in the Byte Write Truth Table preceding.
4. G is an asynchronous inG can be driven high at any time to disable active output drivers. G low can only enable active drivers (shown
as “Q” in the Truth Table above).
5. All input combinations shown above are tested and supported. Input combinations shown in gray boxes need not be used to accomplish
basic synchronour synchronous burst operations and may be avoided for simplicity.
6. Tying ADSP high and ADSC low allows simple non-burst synchronous operations. See BOLD items above.
7. Tying ADSP high and ADV low while using ADSC to load new addresses allows simple burst operations. See ITALIC items above.
Rev: 1.04a 6/2009
10/38
© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
Simplified State Diagram
X
Deselect
W
R
W
R
X
R
X
First Write
First Read
CW
CR
CR
W
R
R
X
Burst Write
X
Burst Read
CR
CW
CR
Notes:
1. The diagram shows only supported (tested) synchronous state transitions. The diagram presumes G is tied low.
2. The upper portion of the diagram assumes active use of only the Enable (E1) and Write (BA, BB, BC, BD, BW, and GW) control inputs, and
that ADSP is tied high and ADSC is tied low.
3. The upper and lower portions of the diagram together assume active use of only the Enable, Write, and ADSC control inputs and
assumes ADSP is tied high and ADV is tied low.
Rev: 1.04a 6/2009
11/38
© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
Simplified State Diagram with G
X
Deselect
W
R
W
R
X
W
R
X
First Write
First Read
CR
CW
CW
CR
W
R
R
W
X
Burst Write
X
Burst Read
CR
CW
CW
CR
Notes:
1. The diagram shows supported (tested) synchronous state transitions plus supported transitions that depend upon the use of G.
2. Use of “Dummy Reads” (Read Cycles with G High) may be used to make the transition from read cycles to write cycles without passing
through a Deselect cycle. Dummy Read cycles increment the address counter just like normal read cycles.
3. Transitions shown in grey tone assume G has been pulsed high long enough to turn the RAM’s drivers off and for incoming data to meet
Data Input Set Up Time.
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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
Absolute Maximum Ratings
(All voltages reference to V
)
SS
Symbol
Description
Value
Unit
V
V
Voltage on V Pins
–0.5 to 4.6
DD
DD
V
Voltage in V
Pins
DDQ
–0.5 to 4.6
V
DDQ
V
–0.5 to V
+0.5 ( 4.6 V max.)
DDQ
Voltage on I/O Pins
Voltage on Other Input Pins
Input Current on Any Pin
Output Current on Any I/O Pin
Package Power Dissipation
Storage Temperature
V
I/O
V
–0.5 to V +0.5 ( 4.6 V max.)
V
IN
DD
I
+/–20
+/–2
mA
mA
W
IN
I
OUT
P
1.5
D
o
T
–55 to 125
–55 to 125
C
STG
o
T
Temperature Under Bias
C
BIAS
Note:
Permanent damage to the device may occur if the Absolute Maximum Ratings exceeded. Operation should be restricted to Recommended
Operating Conditions. Exposure to conditions exceeding the Absolute Maximum Ratings, for an extended period of time, may affect reliability of
this component.
Power Supply Voltage Ranges
Parameter
Symbol
Min.
3.0
Typ.
3.3
Max.
3.6
Unit
V
3.3 V Supply Voltage
2.5 V Supply Voltage
V
V
V
V
DD3
V
2.3
2.5
2.7
DD2
3.3 V V
I/O Supply Voe
V
3.0
3.3
3.6
DDQ
DDQ
DDQ3
2.5 V V
I/O Suply Voltage
V
2.3
2.5
2.7
DDQ2
Notes:
1. Input Under/overshoot voltage must be –2 V > Vi < V +2 V not to exceed 4.6 V maximum, with a pulse width not to exceed 20% tKC.
DDn
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GS88218/36BB/D-333/300/250/200/150
V
Range Logic Levels
Parameter
DDQ3
Symbol
Min.
2.0
Typ.
—
Max.
Unit
Notes
V
Input High Voltage
V
V
+ 0.3
DD
V
V
V
V
—
—
2
DD
IH
V
Input Low Voltage
V
–0.3
2.0
—
0.8
+ 0.3
DD
IL
V
I/O Input High Voltage
I/O Input Low Voltage
V
V
—
DDQ
IHQ
DDQ
V
V
–0.3
—
0.8
2
DDQ
ILQ
Notes:
1. Input Under/overshoot voltage must be –2 V > Vi < V +2 V not to exceed 4.6 V maximum, with a pulse width nto exceed 20% tKC.
DDn
2.
V
(max) is voltage on V
pins plus 0.3 V.
DDQ
IHQ
V
Range Logic Levels
Parameter
DDQ2
Symbol
Min.
Typ.
—
Max.
Unit
Notes
V
Input High Voltage
V
0.6*V
V
+ 0.3
DD
V
V
V
V
—
—
2
DD
IH
DD
V
Input Low Voltage
V
0.3*V
DD
–0.3
—
DD
IL
V
I/O Input High Voltage
I/O Input Low Voltage
V
0.6*V
V
+ 0.3
DDQ
—
DDQ
IHQ
DD
V
V
0.3*V
DD
–0.3
—
2
DDQ
ILQ
Notes:
1. Input Under/overshoot voltage must be –2 V > Vi < V +2 not to exceed 4.6 V maximum, with a pulse width not to exceed 20% tKC.
DDn
2.
V
(max) is voltage on V
pins plus 0.3 V.
DDQ
IHQ
Recommended Operating Temperatures
Parameter
Symbol
Min.
0
Typ.
25
Max.
70
Unit
C
Notes
T
Ambient Temperature (Commercial Range Versions)
2
2
A
T
Ambient Temperature (Indual Range Versions)
–40
25
85
C
A
Notes:
1. The part numbers of Industrial Temperature Range versions end with the character “I”. Unless otherwise noted, all performance specifi-
cations quoted are valuated for worst case in the temperature range marked on the device.
2. Input Under/overshoot voltage must be –2 V > Vi < V +2 V not to exceed 4.6 V maximum, with a pulse width not to exceed 20% tKC.
DDn
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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
Undershoot Measurement and Timing
Overshoot Measurement and Timing
V
IH
50% tKC
V
+ 2.0 V
DD
V
SS
50%
50%
V
DD
V
– 2.0 V
SS
50% tKC
V
IL
Capacitance
o
(T = 25 C, f = 1 MHZ, V = 2.5 V)
A
DD
Parameter
Symbol
Test conditions
Typ.
Max.
Unit
pF
C
V
= 0 V
= 0 V
Input Capacitance
4
6
5
7
IN
IN
C
V
OUT
Input/Output Capacitance
pF
I/O
Note:
These parameters are sample tested.
AC Test Conditions
Parameter
Conditions
V
– 0.2 V
Input high level
Input low level
DD
0.2 V
1 V/ns
/2
Input slew rate
V
Input reference level
DD
V
/2
Output reference level
Output load
DDQ
Fig. 1
Notes:
1. Include scope and jig capacitance.
2. Test conditions as ecified with output loading as shown in Fig. 1
unless otherwise noted.
3. Device is deselected as defined by the Truth Table.
Output Load 1
DQ
*
50
30pF
V
DDQ/2
* Distributed Test Jig Capacitance
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GS88218/36BB/D-333/300/250/200/150
DC Electrical Characteristics
Parameter
Symbol
Test Conditions
Min
Max
Input Leakage Current
(except mode pins)
I
V = 0 to V
IN DD
–1 uA
1 uA
IL
V
V V
IN
–1 uA
–1 uA
1 uA
100 uA
DD
IH
IH
I
ZZ Input Current
IN1
0 V V V
IN
V
V V
IN
–100 uA
–1 uA
1 uA
1 uA
DD
IL
IL
I
FT, SCD, ZQ Input Current
IN2
0 V V V
IN
I
Output Disable, V
= 0 to V
DD
Output Leakage Current
Output High Voltage
Output High Voltage
Output Low Voltage
–1 uA
1.7 V
2.4 V
—
1 uA
—
OL
OUT
DDQ
DDQ
V
I
I
= –8 mA, V
= –8 mA, V
= 2.375
= 3.135 V
OH2
OH
OH
V
—
OH3
V
I
= 8 mA
OL
0.4 V
OL
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GS88218/36BB/D-333/300/250/200/150
Operating Currents
-333
–40
to
-300
–40
to
-250
–40
to
-200
–40
to
-150
–40
to
0
to
0
to
0
to
0
to
0
to
Parameter
Test Conditions
Mode
Symbol
Unit
70°C 85°C 70°C 85°C 70°C 85°C 70°C 85°C 70°C 85°C
IDD
250
40
270
40
230
35
250
35
200
30
220
30
170
25
190
25
140
20
160
20
Pipeline
mA
mA
mA
mA
IDDQ
(x32/
x36)
IDD
Flow
Through
205
25
225
25
185
25
205
25
160
25
180
25
140
20
160
20
130
15
150
15
Device Selected;
All other inputs
VIH or VIL
IDDQ
Operating
Current
IDD
230
20
250
20
210
20
230
20
185
15
205
15
155
15
175
130
10
150
10
Pipeline
Output open
IDDQ
(x18)
IDD
Flow
Through
185
15
205
15
170
15
190
15
145
15
165
130
10
150
10
120
8
140
8
IDDQ
ISB
ISB
IDD
IDD
Pipeline
40
40
95
65
50
50
40
40
90
60
50
50
95
65
40
40
85
60
5
50
90
65
40
40
75
50
50
50
80
55
40
40
60
50
50
50
65
55
mA
mA
mA
mA
Standby
Current
ZZ VDD – 0.2 V
—
—
Flow
Through
Pipeline
100
60
Device Deselected;
All other inputs
VIH or VIL
Deselect
Current
Flow
Through
Notes:
1.
2. All parameters listed are worst case scenario.
I
and I
apply to any combination of V , V , V
, and V
operation.
DDQ2
DD
DDQ
DD3 DD2 DDQ3
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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
AC Electrical Characteristics
-333
-300
-250
-200
-150
Parameter
Symbol
Unit
Min
3.0
—
Max
—
2.5
—
—
—
—
—
4.5
—
—
—
—
—
Min
3.3
—
Max
—
2.5
—
—
—
—
—
5.0
—
—
—
—
—
Min
4.0
—
Max
—
2.5
—
—
—
—
—
—
—
—
—
—
Min
5.0
—
Max
—
3.0
—
—
—
—
—
6.5
—
—
—
—
—
Min
6.7
—
Max
—
3.8
—
—
—
—
—
7.5
—
—
—
—
—
Clock Cycle Time
Clock to Output Valid
Clock to Output Invalid
tKC
tKQ
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
tKQX
1.5
1.5
1.0
0.1
4.5
—
1.5
1.5
1.0
0.1
5.0
—
1.5
1.5
1.2
0.2
5.5
—
1.5
1.5
1.4
0.4
6.5
—
1.5
1.5
1.5
0.5
7.5
—
Pipeline
tLZ1
tS
Clock to Output in Low-Z
Setup time
Hold time
tH
Clock Cycle Time
Clock to Output Valid
tKC
tKQ
tKQX
Clock to Output Invalid
2.0
2.0
1.3
0.3
1.0
2.0
2.0
1.4
0.4
1.0
2.0
2.0
1.5
0.5
1.3
2.0
2.0
1.5
0.5
1.3
2.0
2.0
1.5
0.5
1.5
Flow
Through
tLZ1
tS
Clock to Output in Low-Z
Setup time
Hold time
tH
Clock HIGH Time
tKH
Clock LOW Time
tKL
1.2
1.5
—
1.2
1.5
—
1.5
1.5
—
1.5
1.5
—
1.7
1.5
—
ns
ns
Clock to Output in
High-Z
tHZ1
2.5
2.5
2.5
3.0
3.0
G to Output Valid
G to output in Low-Z
G to output in High-Z
ZZ setup time
tOE
—
0
.5
—
2.5
—
—
—
—
0
2.5
—
2.5
—
—
—
—
0
2.5
—
2.5
—
—
—
—
0
3.0
—
3.0
—
—
—
—
0
3.8
—
3.8
—
—
—
ns
ns
ns
ns
ns
ns
tOLZ1
tOHZ1
tZZS2
tZZH2
tZZR
—
5
—
5
—
5
—
5
—
5
ZZ hold time
1
1
1
1
1
ZZ recovery
20
20
20
20
20
Notes:
1. These parameters are sampled and are not 100% tested.
2. ZZ is an asynchronous signal. owever, in order to be recognized on any given clock cycle, ZZ must meet the specified setup and hold
times as specified above
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GS88218/36BB/D-333/300/250/200/150
Pipeline Mode Timing (SCD)
Begin
Read A Cont
Single Read
Cont
Deselect Write B Read C Read C+1 Read C+2 Read C+3 Cont
Deselect
Single Write
tKL
Burst Read
tKH
tKC
CK
ADSP
tS
tS
tH
ADSC initiated read
ADSC
ADV
tS
tH
tH
A
B
C
A0–An
GW
tS
tS
tH
tH
BW
tS
Ba–Bd
E1
tS
tS
tS
Deselected with E1
tH
E1 masks ADSP
tH
tH
E2 and E3 only sampled with ADSP and ADSC
E2
E3
G
tS
D(B)
tKQ
tKQX
tHZ
tOE
tOHZ
Q(A)
tH
tLZ
Q(C)
Q(C+1)
Q(C+2) Q(C+3)
DQa–DQd
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GS88218/36BB/D-333/300/250/200/150
Flow Through Mode Timing (SCD)
Begin
Read A Cont
tKH
Cont
Write B Read C Read C+1 Read C+2 Read C+3 Read C Cont
Deselect
tKL
tKC
CK
Fixed High
ADSP
tS
tH
tS
tH
ADSC initiated read
ADSC
ADV
A0–An
GW
tS
tH
tS
tH
A
B
C
tS
tH
tS
tH
BW
tS
tH
Ba–Bd
E1
tS
tS
Deselected with E1
tH
tH
E2 d E3 only sampled with ADSC
E2
tS
E3
G
tH
tS
tKQ
tLZ
tHZ
tOE
tOHZ
D(B)
tKQX
Q(A)
Q(C)
Q(C+1)
Q(C+2)
Q(C+3)
Q(C)
DQa–DQd
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GS88218/36BB/D-333/300/250/200/150
Pipeline Mode Timing (DCD)
Begin
Read A Cont
Deselect Deselect Write B Read C Read C+1 Read C+2 Read C+3 Cont
tKL
Deselect Deselect
tKH
tKC
CK
ADSP
tS
tS
ADSC initiated read
tH
ADSC
ADV
tS
tH
tH
A
B
C
Ao–An
GW
tS
tS
tH
tH
BW
tS
Ba–Bd
E1
tS
tS
tS
Deselected with E1
tH
E2 and E3 oy sampled with ADSC
tH
tH
E2
E3
G
tS
D(B)
tKQ
tHZ
tOE
tOHZ
Q(A)
tH
tLZ
tKQX
Hi-Z
Q(C)
Q(C+1)
Q(C+2)
Q(C+3)
DQa–DQd
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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
Flow Through Mode Timing (DCD)
Begin
Read A Cont
tKH
Deselect Write B
tKC
Read C Read C+1 Read C+2 Read C+3 Read C Deselect
tKL
CK
Fixed High
ADSP
tS
tH
tS
tH
ADSC initiated read
ADSC
ADV
Ao–An
GW
tH
tS
tS
tH
tS
tH
A
B
C
tS
tH
tS
tH
BW
tH
tS
Ba–Bd
E1
tS
Deselected with E1
tH
E1 masks ADSP
tS
tH
E2 and E3 nly sampled with ADSP and ADSC
E1 masks ADSP
E2
tS
tH
E3
G
tH
tS
tOE
tKQ
tKQX
tHZ
tOHZ
D(B)
tLZ
Q(A)
Q(C)
Q(C+1)
Q(C+2)
Q(C+3)
Q(C)
DQa–DQd
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GS88218/36BB/D-333/300/250/200/150
JTAG Port Operation
Overview
The JTAG Port on this RAM operates in a manner that is compliant with IEEE Standard 1149.1-1990, a serial boundary scan
interface standard (commonly referred to as JTAG). The JTAG Port input interface levels scale with V . The JTAG output
DD
drivers are powered by V
.
DDQ
Disabling the JTAG Port
It is possible to use this device without utilizing the JTAG port. The port is reset at power-up and will remain inactive unless
clocked. TCK, TDI, and TMS are designed with internal pull-up circuits.To assure normal operation of the RAM with the JTAG
Port unused, TCK, TDI, and TMS may be left floating or tied to either V or V . TDO should be left unconnected.
DD
SS
JTAG Pin Descriptions
Pin
Pin Name
I/O
Description
Clocks all TAP events. All inputs are captured on the rising edge f TCK and all outputs propagate
from the falling edge of TCK.
TCK
Test Clock
In
The TMS input is sampled on the rising edge of TCThis is the command input for the TAP
TMS
TDI
Test Mode Select
Test Data In
In controller state machine. An undriven TMS input will produce the same result as a logic one input
level.
The TDI input is sampled on the rising edge of TCK. This is the input side of the serial registers
placed between TDI and TDO. The register placed between TDI and TDO is determined by the
In state of the TAP Controller state machine and the instruction that is currently loaded in the TAP
Instruction Register (refer to thAP Controller State Diagram). An undriven TDI pin will produce
the same result as a logic oe input level.
Output that is active depnding on the state of the TAP state machine. Output changes in
Out response to the falling edge of TCK. This is the output side of the serial registers placed between
TDI and TDO.
TDO
Test Data Out
Note:
This device does not have a TRST (TAP Reset) pin. TRST is optional in IEEE 1149.1. The Test-Logic-Reset state is entered while TMS is
held high for five rising edges of TCK. The TAP Controller is also reset automaticly at power-up.
JTAG Port Registers
Overview
The various JTAG registers, refered to as Test Access Port orTAP Registers, are selected (one at a time) via the sequences of 1s
and 0s applied to TMS as TCK is strobed. Each of the TAP Registers is a serial shift register that captures serial input data on the
rising edge of TCK apushes serial data out on the next falling edge of TCK. When a register is selected, it is placed between the
TDI and TDO pins.
Instruction Register
The Instruction Register holds the instructions that are executed by the TAP controller when it is moved into the Run, Test/Idle, or
the various data register states. Instructions are 3 bits long. The Instruction Register can be loaded when it is placed between the
TDI and TDO pins. The Instruction Register is automatically preloaded with the IDCODE instruction at power-up or whenever the
controller is placed in Test-Logic-Reset state.
Bypass Register
The Bypass Register is a single bit register that can be placed between TDI and TDO. It allows serial test data to be passed through
the RAM’s JTAG Port to another device in the scan chain with as little delay as possible.
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GS88218/36BB/D-333/300/250/200/150
Boundary Scan Register
The Boundary Scan Register is a collection of flip flops that can be preset by the logic level found on the RAM’s input or I/O pins.
The flip flops are then daisy chained together so the levels found can be shifted serially out of the JTAG Port’s TDO pin. The
Boundary Scan Register also includes a number of place holder flip flops (always set to a logic 1). The relationship between the
device pins and the bits in the Boundary Scan Register is described in the Scan Order Table following. The Boundary Scan
Register, under the control of the TAP Controller, is loaded with the contents of the RAMs I/O ring when the controller is in
Capture-DR state and then is placed between the TDI and TDO pins when the controller is moved to Shift-DR state. SAMPLE-Z,
SAMPLE/PRELOAD and EXTEST instructions can be used to activate the Boundary Scan Register.
JTAG TAP Block Diagram
·
·
·
·
·
·
·
·
Boundary Scan Register
·
·
·
0
Bypass Register
2
1 0
Instruction gister
TDI
TDO
ID Code Register
31 30 29
2 1
0
·
· · ·
Control Signals
Test Access Port (TAP) Controller
TMS
TCK
Identification (ID) Reger
The ID Register is a 32-bit register that is loaded with a device and vendor specific 32-bit code when the controller is put in
Capture-DR state with the IDCODE command loaded in the Instruction Register. The code is loaded from a 32-bit on-chip ROM.
It describes various attributes of the RAM as indicated below. The register is then placed between the TDI and TDO pins when the
controller is moved into Shift-DR state. Bit 0 in the register is the LSB and the first to reach TDO when shifting begins.
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GS88218/36BB/D-333/300/250/200/150
ID Register Contents
Die
Revision
Code
GSI Technology
JEDEC Vendor
I/O
Not Used
Configuration
ID Code
Bit # 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
0
1
1
1
1
x36
x32
x18
x16
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
0
0
0
0
0
0
0
0
0
0
X
0
X
0
1
0
1
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
0
1
0
1
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0 1 1 0 1 1 0 0 1
0 1 1 0 1 1 0 0 1
0 1 1 0 1 1 0 0 1
0 1 1 0 1 1 0 0 1
Tap Controller Instruction Set
Overview
There are two classes of instructions defined in the Standard 1149.1-1990; the standard (Public) instructions, and device specific
(Private) instructions. Some Public instructions are mandatory for 1149.1 compliance. Optional Public instructions must be
implemented in prescribed ways. The TAP on this device may be used to monitor all input and I/O pads, and can be used to load
address, data or control signals into the RAM or to preload the I/O buffers.
When the TAP controller is placed in Capture-IR state the two lesignificant bits of the instruction register are loaded with 01.
When the controller is moved to the Shift-IR state the Instruction Register is placed between TDI and TDO. In this state the desired
instruction is serially loaded through the TDI input (while previous contents are shifted out at TDO). For all instructions, the
TAP executes newly loaded instructions only when the controller is moved to Update-IR state. The TAP instruction set for this
device is listed in the following table.
Rev: 1.04a 6/2009
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© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
JTAG Tap Controller State Diagram
Test Logic Reset
1
0
1
1
1
Run Test Idle
Select DR
Select IR
0
0
0
1
1
1
1
Capture DR
Capture IR
0
0
Shift DR
Shift IR
0
0
1
1
Exit1 DR
xit1 IR
0
0
Pause DR
Pause IR
0
0
0
0
1
1
Exit2 DR
Exit2 IR
1
1
UpdaDR
Update IR
1
0
1
0
Instruction Descriptions
BYPASS
When the BYPASS instruction is loaded in the Instruction Register the Bypass Register is placed between TDI and TDO. This
occurs when the TAP controller is oved to the Shift-DR state. This allows the board level scan path to be shortened to facili-
tate testing of other devices in the scan path.
SAMPLE/PRELOAD
SAMPLE/PRELOAD is a Standard 1149.1 mandatory public instruction. When the SAMPLE / PRELOAD instruction is
loaded in the Instruction Register, moving the TAP controller into the Capture-DR state loads the data in the RAMs input and
I/O buffers into thBoundary Scan Register. Boundary Scan Register locations are not associated with an input or I/O pin, and
are loaded with the default state identified in the Boundary Scan Chain table at the end of this section of the datasheet. Because
the RAM clock is independent from the TAP Clock (TCK) it is possible for the TAP to attempt to capture the I/O ring contents
while the input buffers are in transition (i.e. in a metastable state). Although allowing the TAP to sample metastable inputs will
not harm the device, repeatable results cannot be expected. RAM input signals must be stabilized for long enough to meet the
TAPs input data capture set-up plus hold time (tTS plus tTH). The RAMs clock inputs need not be paused for any other TAP
operation except capturing the I/O ring contents into the Boundary Scan Register. Moving the controller to Shift-DR state then
places the boundary scan register between the TDI and TDO pins.
EXTEST
EXTEST is an IEEE 1149.1 mandatory public instruction. It is to be executed whenever the instruction register is loaded with
all logic 0s. The EXTEST command does not block or override the RAM’s input pins; therefore, the RAM’s internal state is
still determined by its input pins.
Rev: 1.04a 6/2009
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© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
Typically, the Boundary Scan Register is loaded with the desired pattern of data with the SAMPLE/PRELOAD command.
Then the EXTEST command is used to output the Boundary Scan Register’s contents, in parallel, on the RAM’s data output
drivers on the falling edge of TCK when the controller is in the Update-IR state.
Alternately, the Boundary Scan Register may be loaded in parallel using the EXTEST command. When the EXTEST instruc-
tion is selected, the sate of all the RAM’s input and I/O pins, as well as the default values at Scan Register locations not asso-
ciated with a pin, are transferred in parallel into the Boundary Scan Register on the rising edge of TCK in the Capture-DR
state, the RAM’s output pins drive out the value of the Boundary Scan Register location with which each output pin is associ-
ated.
IDCODE
The IDCODE instruction causes the ID ROM to be loaded into the ID register when the controller is in Capture-DR mode and
places the ID register between the TDI and TDO pins in Shift-DR mode. The IDCODE instruction ihe default instruction
loaded in at power up and any time the controller is placed in the Test-Logic-Reset state.
SAMPLE-Z
If the SAMPLE-Z instruction is loaded in the instruction register, all RAM outputs are fd to an inactive drive state (high-
Z) and the Boundary Scan Register is connected between TDI and TDO when the TAP controller is moved to the Shift-DR
state.
RFU
These instructions are Reserved for Future Use. In this device they replicate the BYPASS instruction.
JTAG TAP Instruction Set Summary
Instruction
EXTEST
Code
000
Description
Notes
1
Places the Boundary Scan Rgister between TDI and TDO.
Preloads ID Register and paces it between TDI and TDO.
IDCODE
001
1, 2
Captures I/O ring cntents. Places the Boundary Scan Register between TDI and
SAMPLE-Z
RFU
010
011
TDO.
1
1
Forces all RAM output drivers to High-Z.
Do not use this instruction; Reserved for Future Use.
Repltes BYPASS instruction. Places Bypass Register between TDI and TDO.
SAMPLE/
PRELOAD
Captures I/O ring contents. Places the Boundary Scan Register between TDI and
TDO.
100
101
110
111
1
1
1
1
GSI
RFU
GSI private instruction.
Do not use this instruction; Reserved for Future Use.
Replicates BYPASS instruction. Places Bypass Register between TDI and TDO.
BYPASS
Places Bypass Register between TDI and TDO.
Notes:
1. Instruction codes expressed in binary, MSB on left, LSB on right.
2. Default instruction automatically loaded at power-up and in test-logic-reset state.
Rev: 1.04a 6/2009
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© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
JTAG Port Recommended Operating Conditions and DC Characteristics
Parameter
Symbol
Min.
2.0
Max.
Unit Notes
V
V
V
+0.3
DD3
3.3 V Test Port Input High Voltage
3.3 V Test Port Input Low Voltage
2.5 V Test Port Input High Voltage
2.5 V Test Port Input Low Voltage
TMS, TCK and TDI Input Leakage Current
TMS, TCK and TDI Input Leakage Current
TDO Output Leakage Current
V
V
1
1
IHJ3
V
–0.3
0.8
+0.3
ILJ3
V
0.6 * V
V
1
IHJ2
DD2
DD2
V
0.3 * V
–0.3
–300
–1
V
1
ILJ2
DD2
I
uA
uA
uA
V
2
INHJ
I
100
1
3
INLJ
I
–1
4
OLJ
V
Test Port Output High Voltage
1.7
—
5, 6
5, 7
5, 8
5, 9
OHJ
V
Test Port Output Low Voltage
—
0.4
V
OLJ
V
V
– 100 mV
DDQ
Test Port Output CMOS High
—
V
OHJC
V
Test Port Output CMOS Low
—
100 mV
V
OLJC
Notes:
1. Input Under/overshoot voltage must be –2 V < Vi < V
+2 V not o exceed 4.6 V maximum, with a pulse width not to exceed 20% tTKC.
DDn
2.
V
V V
ILJ
IN
DDn
3. 0 V V V
IN
ILJn
4. Output Disable, V
= 0 to V
DDn
OUT
5. The TDO output driver is served by the V
supply
DDQ
6.
7.
8.
9.
I
I
I
I
= –4 mA
OHJ
= + 4 mA
OLJ
= –100 uA
= +100 uA
OHJC
OLJC
JTAG Port AC Test Contions
Parameter
Conditions
JTAG Port AC Test Load
DQ
V
– 0.2 V
Input high level
Input low level
DD
0.2 V
1 V/ns
*
50
30pF
Input slew rate
V
/2
DDQ
V
V
/2
Input reference level
DDQ
* Distributed Test Jig Capacitance
/2
Output reference level
DDQ
Notes:
1. Include scope and jig capacitance.
2. Test conditions as shown unless otherwise noted.
Rev: 1.04a 6/2009
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© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
JTAG Port Timing Diagram
tTKC
tTKH
tTKL
TCK
tTH
tTH
tTS
tTS
TDI
TMS
TDO
tTKQ
tTH
tTS
Parallel SRAM input
JTAG Port AC Electrical Characteristics
Parameter
Symbol
tTKC
tTKQ
tTKH
tTKL
tTS
Min
Max
—
Unit
TCK Cycle Time
50
—
ns
ns
ns
ns
ns
ns
TCK Low to TDO Valid
TCK High Pulse Width
TCK Low Pulse Width
TDI & TMS Set Up Time
TDI & TMS Hold Time
20
20
20
10
10
—
—
tTH
—
Rev: 1.04a 6/2009
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© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
Sleep Mode
During normal operation, ZZ must be pulled low, either by the user or by it’s internal pull down resistor. When ZZ is pulled high,
the SRAM will enter a Power Sleep mode after 2 cycles. At this time, internal state of the SRAM is preserved. When ZZ returns to
low, the SRAM operates normally after ZZ recovery time.
Sleep mode is a low current, power-down mode in which the device is deselected and current is reduced to I 2. The duration of
SB
Sleep mode is dictated by the length of time the ZZ is in a high state. After entering Sleep mode, all inputs except ZZ become
disabled and all outputs go to High-Z The ZZ pin is an asynchronous, active high input that causes the device to enter Sleep mode.
When the ZZ pin is driven high, I 2 is guaranteed after the time tZZI is met. Because ZZ is an asynchronous input, pending
SB
operations or operations in progress may not be properly completed if ZZ is asserted. Therefore, Sleep mode must not be initiated
until valid pending operations are completed. Similarly, when exiting Sleep mode during tZZR, only a Delect or Read commands
may be applied while the SRAM is recovering from Sleep mode.
Sleep Mode Timing Diagram
tKH
tKC
tKL
CK
Setup
Hold
ADSP
ADSC
tZZR
tZZS
tZZH
ZZ
Application Tips
Single and Dual Cycle Deselect
SCD devices (like this one) force the of “dummy read cycles” (read cycles that are launched normally, but that are ended with
the output drivers inactive) in a fully synchronous environment. Dummy read cycles waste performance, but their use usually
assures there will be no bus contntion in transitions from reads to writes or between banks of RAMs. DCD SRAMs do not waste
bandwidth on dummy cycleand are logically simpler to manage in a multiple bank application (wait states need not be inserted at
bank address boundary crossings), but greater care must be exercised to avoid excessive bus contention.
Boundary Scan (BSDL Files)
For information regarding the Boundary Scan Chain, or to obtain BSDL files for this part, please contact our Applications
Engineering Department at: apps@gsitechnology.com.
Rev: 1.04a 6/2009
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© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
Package Dimensions—119-Bump FPBGA (Package GB (MCM), Variation 2)
TOP VIEW
BOTTOM VIEW
A1
A1
S
Ø0.10
C
S
S
S
Ø0.30 C A
B
Ø0.60~0.90 (119x)
1
2
3
4
5
6
7
7
6
5
4 3
2
1
A
B
C
D
E
F
A
B
C
D
E
F
G
H
J
G
H
J
K
L
M
N
P
R
T
U
K
L
M
N
P
R
T
U
B
1.27
7.62
14±0.10
A
0.20(4x)
SEATING PLANE
C
Rev: 1.04a 6/2009
31/38
© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
Package Dimensions—165-Bump FPBGA (Package D)
A1 CORNER
TOP VIEW
BOTTOM VIEW
A1 CORNER
M
M
Ø0.10
C
Ø0.25 C A B
Ø0.40~0.60 (165x)
1
2 3 4 5 6 7 8 9 10 11
11 10 9 8
7 6 5 4 3 2 1
A
B
C
D
E
F
A
B
C
D
E
F
G
H
J
G
H
J
K
L
K
L
M
N
P
R
M
N
P
R
A
1.0
10.0
1.0
13±0.05
B
0.20(4x)
SEATING PLANE
C
Rev: 1.04a 6/2009
32/38
© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
Ordering Information for GSI Synchronous Burst RAMs
2
Speed
3
1
Org
Type
Package
T
Part Number
A
(MHz/ns)
512K x 18
512K x 18
512K x 18
512K x 18
512K x 18
256K x 36
256K x 36
256K x 36
256K x 36
256K x 36
512K x 18
512K x 18
512K x 18
512K x 18
512K x 18
256K x 36
256K x 36
256K x 36
256K x 36
256K x 36
GS88218BB-333
GS88218BB-300
GS88218BB-250
GS88218BB-200
GS88218BB-150
GS88236BB-333
GS88236BB-300
GS88236BB-250
GS88236BB-200
GS88236BB-150
GS88218BB-333I
GS88218BB-3005I
GS88218BB-250I
GS88218BB-200I
GS88218BB-150I
GS88236BB-333I
GS88236BB-300I
GS88236BB-250I
GS88236BB-200I
GS88236-150I
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/FThrough
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
119 BGA (var. 2)
119 BGA (var. 2)
119 BGA (var. 2)
119 BGA (var. 2)
119 BGA (var. 2)
119 BGA (r. 2)
119 BGA (var. 2)
119 BGA (var. 2)
119 BGA (var. 2)
119 BGA (var. 2)
119 BGA (var. 2)
119 BGA (var. 2)
119 BGA (var. 2)
119 BGA (var. 2)
119 BGA (var. 2)
119 BGA (var. 2)
119 BGA (var. 2)
119 BGA (var. 2)
119 BGA (var. 2)
119 BGA (var. 2)
333/4.5
300/5
C
C
C
C
C
C
C
C
C
C
I
250/5.5
200/6.5
150/7.5
333/4.5
300/5
250/5.5
200/6.5
150/7.5
333/4.5
300/5
I
250/5.5
200/6.5
150/7.5
333/4.5
300/5
I
I
I
I
I
250/5.5
200/6.5
150/7.5
I
I
I
RoHS-compliantRoHS-
compliant 119 BGA (var. 2)
512K x 18
512K x 18
GS88218BGB-333
GS88218BGB-300
GS88218BGB-250
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
333/4.5
300/5
C
C
C
RoHS-compliant 119 BGA
(var. 2)
RoHS-compliant 119 BGA
(var. 2)
512K x 18
250/5.5
Notes:
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number. Example: GS88236B-150IT.
2. The speed column indicates the cycle frequency (MHz) of the device in Pipeline mode and the latency (ns) in Flow Through mode. Each
device is Pipeline/Flow Through mode-selectable by the user.
3. T = C = Commercial Temperature Range. T = I = Industrial Temperature Range.
A
A
4. GSI offers other versions this type of device in many different configurations and with a variety of different features, only some of which
are covered in this data sheet. See the GSI Technology web site (www.gsitechnology.com) for a complete listing of current offerings
Rev: 1.04a 6/2009
33/38
© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
Ordering Information for GSI Synchronous Burst RAMs (Continued)
2
Speed
3
1
Org
Type
Package
T
Part Number
A
(MHz/ns)
RoHS-compliant 119 BGA
(var. 2)
512K x 18
512K x 18
256K x 36
256K x 36
256K x 36
256K x 36
256K x 36
512K x 18
512K x 18
512K x 18
512K x 18
512K x 18
256K x 36
256K x 36
256K x 36
GS88218BGB-200
GS88218BGB-150
GS88236BGB-333
GS88236BGB-300
GS88236BGB-250
GS88236BGB-200
GS88236BGB-150
GS88218BGB-333I
GS88218BGB-3005I
GS88218BGB-250I
GS88218BGB-200I
GS88218BGB-150I
GS88236BB-333I
GS88236BGB-300I
GS88236BGB-250I
GS88236BGB-200I
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow hrough
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
200/6.5
150/7.5
333/4.5
300/5
C
C
C
C
C
C
C
I
RoHS-compliant 119 BGA
(var. 2)
RoHS-compliant 119 BGA
(var. 2)
RoHS-compliant 119 BGA
(var. 2)
RoHS-compli19 BGA
(var. 2)
250/5.5
200/6.5
150/7.5
333/4.5
300/5
RoHS-compliant 119 BGA
(var. 2)
RoHS-compliant 119 BGA
(var. 2)
RoHS-compliant 119 BGA
(var. 2)
RoHS-compliant 119 BGA
(var. 2)
I
RoHS-compliant 119 BGA
(var. 2)
250/5.5
200/6.5
150/7.5
333/4.5
300/5
I
RoHS-compliant 119 BGA
(var. 2)
I
RoHS-compliant 119 BGA
(var. 2)
I
RoHS-compliant 119 BGA
(var. 2)
I
RoHS-compliant 119 BGA
(var. 2)
I
RoHS-compliant 119 BGA
(var. 2)
250/5.5
200/6.5
I
RoHS-compliant 119 BGA
(var. 2)
256K x 36
I
Notes:
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number. Example: GS88236B-150IT.
2. The speed column indicates the cycle frequency (MHz) of the device in Pipeline mode and the latency (ns) in Flow Through mode. Each
device is Pipeline/Flow Through mode-selectable by the user.
3. T = C = Commercial Temperature Range. T = I = Industrial Temperature Range.
A
A
4. GSI offers other versions this type of device in many different configurations and with a variety of different features, only some of which
are covered in this data sheet. See the GSI Technology web site (www.gsitechnology.com) for a complete listing of current offerings
Rev: 1.04a 6/2009
34/38
© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
Ordering Information for GSI Synchronous Burst RAMs (Continued)
2
Speed
3
1
Org
Type
Package
T
Part Number
A
(MHz/ns)
RoHS-compliant 119 BGA
(var. 2)
256K x 36
GS88236BGB-150I
Pipeline/Flow Through
150/7.5
I
512K x 18
512K x 18
512K x 18
512K x 18
512K x 18
256K x 36
256K x 36
256K x 36
256K x 36
256K x 36
512K x 18
512K x 18
512K x 18
512K x 18
512K x 18
256K x 36
256K x 36
256K x 36
256K x 36
256K x 36
GS88218BD-333
GS88218BD-300
GS88218BD-250
GS88218BD-200
GS88218BD-150
GS88236BD-333
GS88236BD-300
GS88236BD-250
GS88236BD-200
GS88236BD-150
GS88218BD-333I
GS88218BD-300I
GS88218BD-250I
GS88218BD-200I
GS88218BD-150I
GS88236BD-333I
GS88236BD-300I
GS88236BD-250I
GS88236BD-200I
GS88236BD-150I
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Thrgh
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
165 BGA (var. 1)
165 BGA (var. 1)
165 BGA (var. 1)
165 BGA (var. 1)
165 BGA (var. )
165 BGA 1)
165 BGA (var. 1)
65 BGA (var. 1)
165 BGA (var. 1)
165 BGA (var. 1)
165 BGA (var. 1)
165 BGA (var. 1)
165 BGA (var. 1)
165 BGA (var. 1)
165 BGA (var. 1)
165 BGA (var. 1)
165 BGA (var. 1)
165 BGA (var. 1)
165 BGA (var. 1)
165 BGA (var. 1)
333/4.5
300/5
C
C
C
C
C
C
C
C
C
C
I
250/5.5
200/6.5
150/7.5
333/4.5
300/5
250/5.5
200/6.5
150/7.5
333/4.5
300/5
I
250/5.5
200/6.5
150/7.5
333/4.5
300/5
I
I
I
I
I
250/5.5
200/6.5
150/7.5
I
I
I
RoHS-compliant 165 BGA
(var. 1)
512K x 18
512K x 18
GS18BGD-333
GS88218BGD-300
GS88218BGD-250
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
333/4.5
300/5
C
C
C
RoHS-compliant 165 BGA
(var. 1)
RoHS-compliant 165 BGA
(var. 1)
512K x 18
250/5.5
Notes:
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number. Example: GS88236B-150IT.
2. The speed column indicates the cycle frequency (MHz) of the device in Pipeline mode and the latency (ns) in Flow Through mode. Each
device is Pipeline/Flow Through mode-selectable by the user.
3. T = C = Commercial Temperature Range. T = I = Industrial Temperature Range.
A
A
4. GSI offers other versions this type of device in many different configurations and with a variety of different features, only some of which
are covered in this data sheet. See the GSI Technology web site (www.gsitechnology.com) for a complete listing of current offerings
Rev: 1.04a 6/2009
35/38
© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
Ordering Information for GSI Synchronous Burst RAMs (Continued)
2
Speed
3
1
Org
Type
Package
T
Part Number
A
(MHz/ns)
RoHS-compliant 165 BGA
(var. 1)
512K x 18
512K x 18
256K x 36
256K x 36
256K x 36
256K x 36
GS88218BGD-200
GS88218BGD-150
GS88236BGD-333
GS88236BGD-300
GS88236BGD-250
GS88236BGD-200
GS88236BGD-150
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
200/6.5
150/7.5
333/4.5
300/5
C
C
C
C
C
C
C
RoHS-compliant 165 BGA
(var. 1)
RoHS-compliant 165 BGA
(var. 1)
RoHS-compliant 165 BGA
(var. 1)
RoHS-compli65 BGA
(var. 1)
250/5.5
200/6.5
150/7.5
RoHS-compliant 165 BGA
(var. 1)
RoHS-compliant 165 BGA
(var. 1)
256K x 36
Notes:
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number. Example: GS88236B-150IT.
2. The speed column indicates the cycle frequency (MHz) of the deviin Pipeline mode and the latency (ns) in Flow Through mode. Each
device is Pipeline/Flow Through mode-selectable by the user.
3. T = C = Commercial Temperature Range. T = I = IndustriTemperature Range.
A
A
4. GSI offers other versions this type of device in many different configurations and with a variety of different features, only some of which
are covered in this data sheet. See the GSI Technology web site (www.gsitechnology.com) for a complete listing of current offerings
Rev: 1.04a 6/2009
36/38
© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
Ordering Information for GSI Synchronous Burst RAMs (Continued)
2
Speed
3
1
Org
Type
Package
T
Part Number
A
(MHz/ns)
RoHS-compliant 165 BGA
(var. 1)
512K x 18
512K x 18
512K x 18
512K x 18
512K x 18
256K x 36
256K x 36
256K x 36
256K x 36
GS88218BGD-333I
GS88218BGD-300I
GS88218BGD-250I
GS88218BGD-200I
GS88218BGD-150I
GS88236BGD-333I
GS88236BGD-300I
GS88236BGD-250I
GS88236BGD-200I
GS88236BGD-150I
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow Through
Pipeline/Flow hrough
Pipeline/Flow Through
333/4.5
300/5
I
I
I
I
I
I
I
I
I
I
RoHS-compliant 165 BGA
(var. 1)
RoHS-compliant 165 BGA
(var. 1)
250/5.5
200/6.5
150/7.5
333/4.5
300/5
RoHS-compliant 165 BGA
(var. 1)
RoHS-compli65 BGA
(var. 1)
RoHS-compliant 165 BGA
(var. 1)
RoHS-compliant 165 BGA
(var. 1)
RoHS-compliant 165 BGA
(var. 1)
250/5.5
200/6.5
150/7.5
RoHS-compliant 165 BGA
(var. 1)
RoHS-compliant 165 BGA
(var. 1)
256K x 36
Notes:
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number. Example: GS88236B-150IT.
2. The speed column indicates the cycle frequency (MHz) of the device in Pipeline mode and the latency (ns) in Flow Through mode. Each
device is Pipeline/Flow Through modeselectable by the user.
3. T = C = Commercial Temperature Range. T = I = Industrial Temperature Range.
A
A
4. GSI offers other versions this tpe of device in many different configurations and with a variety of different features, only some of which
are covered in this data et. See the GSI Technology web site (www.gsitechnology.com) for a complete listing of current offerings
Rev: 1.04a 6/2009
37/38
© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
GS88218/36BB/D-333/300/250/200/150
9Mb Sync SRAM Datasheet Revision History
DS/DateRev. Code: Old;
New
Types of Changes
Format or Content
Page;Revisions;Reason
• Creation of new datasheet
88218B_r1
• Removed address and DQ number designations
• Removed erroneous speed bins
• Added 333/300 MHz speed bins
• Basic format updates
88218B_r1; 88218B_r1_01
Content/Format
• Removed Preliminary banner due to qualification of parts
• \Corrected copywrite date
• Updated mechanical drawings and added variation numbers
to ordering information
88218B_r1_01
88218B_r1_02
Content
Content
• Added Pb-Free information
88218B_r1_02;
88218B_r1_03
• Updated Truth Tables, Updated 119- and 165-BGA package
88218B_r1_03;
88218B_r1_04
information
Content
• Rev1.04a: Updated x18 Pad Out (pg. 5), updated RoHS
nomenclature
Rev: 1.04a 6/2009
38/38
© 2002, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
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