GS840H32AB-150 [GSI]

256K x 18, 128K x 32, 128K x 36 4Mb Sync Burst SRAMs; 256K ×18 , 128K ×32 , 128K ×36的4Mb同步突发静态存储器
GS840H32AB-150
型号: GS840H32AB-150
厂家: GSI TECHNOLOGY    GSI TECHNOLOGY
描述:

256K x 18, 128K x 32, 128K x 36 4Mb Sync Burst SRAMs
256K ×18 , 128K ×32 , 128K ×36的4Mb同步突发静态存储器

存储 内存集成电路 静态存储器 时钟
文件: 总30页 (文件大小:750K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
GS840H18/32/36AT/B-180/166/150/100  
TQFP, BGA  
Commercial Temp  
Industrial Temp  
180 MHz–100 MHz  
256K x 18, 128K x 32, 128K x 36  
4Mb Sync Burst SRAMs  
3.3 V V  
DD  
3.3 V and 2.5 V I/O  
internally and are controlled by ADV. The burst address  
Features  
counter 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 with no degradation of chip performance.  
• FT pin for user-configurable flow through or pipelined  
operation  
• Single Cycle Deselect (SCD) operation  
• 3.3 V +10%/–5% core power supply  
• 2.5 V or 3.3 V I/O supply  
Flow Through/Pipeline Reads  
• LBO pin for Linear or Interleaved Burst mode  
• Internal input resistors on mode pins allow floating mode pins  
• Default to Interleaved Pipelined mode  
The function of the Data Output register can be controlled by  
the user via the FT mode pin/bump (pin 14 in the TQFP and  
bump 5R in the BGA). Holding the FT mode pin/bump low  
places the RAM in Flow Through mode, causing output data to  
bypass the Data Output Register. Holding FT high places the  
RAM in Pipelined mode, activating the rising-edge-triggered  
Data Output Register.  
• Byte Write (BW) and/or Global Write (GW) operation  
• Common data inputs and data outputs  
• Clock control, registered, address, data, and control  
• Internal self-timed write cycle  
• Automatic power-down for portable applications  
• JEDEC standard 100-lead TQFP or 119-Bump BGA package  
• Pb-Free 100-lead TQFP package available  
SCD Pipelined Reads  
The GS840H18/32/36A is an SCD (Single Cycle Deselect)  
pipelined synchronous SRAM. DCD (Dual Cycle Deselect)  
versions are also available. SCD SRAMs pipeline deselect  
commands one stage less than read commands. SCD RAMs  
begin turning off their outputs immediately after the deselect  
command has been captured in the input registers.  
Functional Description  
Applications  
The GS840H18/32/36A is a 4,718,592-bit (4,194,304-bit for  
x32 version) 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. The GS840H18/32/36A is  
available in a JEDEC standard 100-lead TQFP or 119-Bump  
BGA package.  
Byte Write and Global Write  
Byte write 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.  
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.  
Controls  
Addresses, data I/Os, chip enables (E1, E2, E3), 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. Burst  
cycles can be initiated with either ADSP or ADSC inputs. In  
Burst mode, subsequent burst addresses are generated  
Core and Interface Voltages  
The GS840H18/32/36A operates on a 3.3 V power supply and  
all inputs/outputs are 3.3 V- and 2.5 V-compatible. Separate  
output power (V  
) pins are used to de-couple output noise  
DDQ  
from the internal circuit.  
Parameter Synopsis  
–180  
–166  
–150  
–100  
tCycle  
tKQ  
IDD  
5.5 ns  
3.0 ns  
335 mA  
6.0 ns  
3.5 ns  
310 mA  
6.6 ns  
3.8 ns  
280 mA  
10 ns  
4.5 ns  
190 mA  
Pipeline  
3-1-1-1  
Flow  
Through  
2-1-1-1  
tKQ  
tCycle  
IDD  
8 ns  
9 ns  
210 mA  
8.5 ns  
10 ns  
190 mA  
10 ns  
12 ns  
165 mA  
12 ns  
15 ns  
135 mA  
Rev: 1.11 10/2004  
1/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
GS840H18A 100-Pin TQFP Pinout (Package T)  
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81  
A
NC  
NC  
1
2
3
4
5
6
7
8
9
80  
79  
78  
77  
76  
75  
74  
73  
72  
71  
70  
69  
68  
67  
66  
65  
64  
63  
62  
61  
60  
59  
58  
57  
56  
55  
54  
53  
52  
51  
NC  
NC  
V
NC  
V
DDQ  
DDQ  
SS  
V
NC  
V
SS  
NC  
NC  
DQPA  
DQA  
DQA  
DQB  
DQB  
256K x 18  
Top View  
V
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
V
SS  
SS  
VDDQ  
DQA  
V
DDQ  
DQB  
DQA  
DQB  
V
FT  
SS  
NC  
V
DD  
VDD  
ZZ  
NC  
V
SS  
DQA  
DQA  
VDDQ  
DQB  
DQB  
V
DDQ  
V
V
SS  
SS  
DQA  
DQA  
NC  
DQB  
DQB  
DQPB  
NC  
NC  
V
VDDQ  
NC  
NC  
NC  
V
SS  
SS  
V
DDQ  
NC  
NC  
NC  
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50  
Rev: 1.11 10/2004  
2/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
GS840H32A 100-Pin TQFP Pinout (Package T)  
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81  
NC  
DQB  
DQB  
V
NC  
DQC  
DQC  
1
2
3
4
5
6
7
8
9
80  
79  
78  
77  
76  
75  
74  
73  
72  
71  
70  
69  
68  
67  
66  
65  
64  
63  
62  
61  
60  
59  
58  
57  
56  
55  
54  
53  
52  
51  
V
DDQ  
DDQ  
V
V
SS  
SS  
DQB  
DQB  
DQB  
DQB  
DQC  
DQC  
DQC  
DQC  
128K x 32  
Top View  
V
V
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
V
SS  
DDQ  
SS  
V
DDQ  
DQB  
DQB  
DQC  
DQC  
V
FT  
SS  
NC  
V
DD  
V
ZZ  
NC  
DD  
V
SS  
DQA  
DQA  
V
DQD  
DQD  
V
DDQ  
DDQ  
SS  
V
V
SS  
DQA  
DQA  
DQA  
DQA  
DQD  
DQD  
DQD  
DQD  
V
V
V
SS  
DDQ  
SS  
V
DDQ  
DQA  
DQA  
NC  
DQD  
DQD  
NC  
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50  
Rev: 1.11 10/2004  
3/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
GS840H36A 100-Pin TQFP Pinout (Package T)  
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81  
DQPB  
DQB  
DQPC  
DQC  
1
2
3
4
5
6
7
8
9
80  
79  
78  
77  
76  
75  
74  
73  
72  
71  
70  
69  
68  
67  
66  
65  
64  
63  
62  
61  
60  
59  
58  
57  
56  
55  
54  
53  
52  
51  
DQB  
DQC  
V
V
V
DDQ  
DDQ  
SS  
V
SS  
DQB  
DQB  
DQB  
DQB  
DQC  
DQC  
DQC  
DQC  
128K x 36  
Top View  
V
V
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
V
SS  
DDQ  
SS  
V
DDQ  
DQB  
DQB  
DQC  
DQC  
FT  
V
SS  
NC  
V
DD  
V
ZZ  
NC  
DD  
V
SS  
DQA  
DQA  
DQD  
DQD  
DDQ  
V
V
V
DDQ  
SS  
V
SS  
DQA  
DQA  
DQA  
DQA  
DQD  
DQD  
DQD  
DQD  
V
V
SS  
DDQ  
SS  
V
V
DDQ  
DQA  
DQD  
DQA  
DQD  
DQPA  
DQPD  
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50  
Rev: 1.11 10/2004  
4/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
TQFP 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  
BW  
BA, BB  
BC, BD  
CK  
I
I
I
I
I
I
I
I
I
I
I
I
I
I
Byte Write—Writes all enabled bytes; active low  
Byte Write Enable for DQA, DQB Data I/’s; active low  
Byte Write Enable for DQC, DQD Data I/Os; active low  
Clock Input Signal; active high  
GW  
Global Write Enable—Writes all bytes; active low  
Chip Enable; active low  
E1, E3  
E2  
Chip Enable; active high  
G
Output Enable; active low  
ADV  
Burst address counter advance enable; active low  
Address Strobe (Processor, Cache Controller); active low  
Sleep Mode control; active high  
ADSP, ADSC  
ZZ  
FT  
Flow Through or Pipeline mode; active low  
Linear Burst Order mode; active low  
Core power supply  
LBO  
V
DD  
V
I
I
-
I/O and Core Ground  
Output driver power supply  
No Connect  
SS  
V
DDQ  
NC  
Rev: 1.11 10/2004  
5/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
GS840H18A Pad Out—119-Bump BGA—Top View (Package B)  
1
2
A
3
A
A
A
4
5
A
A
A
6
A
7
A
B
C
D
E
F
V
ADSP  
ADSC  
V
DDQ  
DDQ  
NC  
E2  
E3  
NC  
NC  
A
V
A
NC  
NC  
DD  
DQB  
NC  
NC  
DQB  
NC  
DQB  
NC  
V
V
V
NC  
E1  
V
V
V
DQPA  
NC  
DQA  
NC  
DQA  
SS  
SS  
SS  
SS  
SS  
SS  
DQA  
V
G
V
DDQ  
DDQ  
G
H
J
NC  
BB  
ADV  
GW  
NC  
DQA  
DQB  
V
V
NC  
SS  
SS  
V
V
NC  
V
NC  
V
V
DDQ  
DD  
DD  
DD  
DDQ  
K
L
NC  
DQB  
NC  
DQB  
NC  
DQPB  
A
V
CK  
NC  
BW  
A1  
V
NC  
DQA  
NC  
DQA  
NC  
A
DQA  
SS  
SS  
DQB  
NC  
BA  
NC  
V
V
V
V
M
N
P
R
T
DDQ  
SS  
SS  
SS  
SS  
SS  
SS  
DDQ  
DQB  
V
V
V
V
NC  
NC  
NC  
NC  
A0  
DQA  
NC  
ZZ  
LBO  
A
V
FT  
A
DD  
A
NC  
A
V
NC  
NC  
NC  
NC  
NC  
V
U
DDQ  
DDQ  
Rev: 1.11 10/2004  
6/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
GS840H32A Pad Out—119-Bump BGA—Top View (Package B)  
1
2
A
3
A
A
A
4
5
A
A
A
6
7
A
B
C
D
E
F
V
ADSP  
ADSC  
A
V
DDQ  
DDQ  
NC  
E2  
E3  
NC  
NC  
A
V
A
NC  
DD  
DQC  
DQC  
NC  
DQC  
DQC  
DQC  
DQC  
V
V
V
NC  
E1  
V
V
V
NC  
DQB  
DQB  
DQB  
DQB  
DQB  
DQB  
SS  
SS  
SS  
SS  
SS  
SS  
V
G
V
DDQ  
DDQ  
G
H
J
DQC  
BC  
ADV  
GW  
BB  
DQB  
DQC  
V
V
DQB  
SS  
SS  
V
V
NC  
V
NC  
V
V
DDQ  
DD  
DD  
DD  
DDQ  
K
L
DQD  
DQD  
DQD  
DQD  
DQD  
NC  
V
CK  
NC  
BW  
A1  
V
DQA  
DQA  
DQA  
DQA  
NC  
DQA  
SS  
SS  
DQD  
BD  
BA  
DQA  
V
V
V
V
M
N
P
R
T
DDQ  
SS  
SS  
SS  
SS  
SS  
SS  
DDQ  
DQD  
V
V
V
V
DQA  
DQD  
NC  
A0  
DQA  
NC  
ZZ  
A
LBO  
A
V
FT  
A
A
DD  
NC  
NC  
A
NC  
V
NC  
NC  
NC  
NC  
NC  
V
U
DDQ  
DDQ  
Rev: 1.11 10/2004  
7/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
GS840H36A Pad Out—119-Bump BGA—Top View (Package B)  
1
2
A
3
A
A
A
4
5
A
A
A
6
A
7
A
B
C
D
E
F
V
ADSP  
ADSC  
V
DDQ  
DDQ  
NC  
E2  
E3  
NC  
NC  
A
V
A
NC  
DD  
DQC  
DQC  
DQPC  
DQC  
DQC  
DQC  
DQC  
V
V
V
NC  
E1  
V
V
V
DQPB  
DQB  
DQB  
DQB  
DQB  
DQB  
DQB  
SS  
SS  
SS  
SS  
SS  
SS  
V
G
V
DDQ  
DDQ  
G
H
J
DQC2  
BC  
ADV  
GW  
BB  
DQB2  
DQC  
V
V
DQB  
SS  
SS  
V
V
NC  
V
NC  
V
V
DDQ  
DD  
DD  
DD  
DDQ  
K
L
DQD  
DQD  
DQD  
DQD  
DQD  
DQPD  
A
V
CK  
NC  
BW  
A1  
V
DQA  
DQA  
DQA  
DQA  
DQPA  
A
DQA  
SS  
SS  
DQD  
BD  
BA  
DQA  
V
V
V
V
M
N
P
R
T
DDQ  
SS  
SS  
SS  
SS  
SS  
SS  
DDQ  
DQD  
V
V
V
V
DQA  
DQD  
NC  
A0  
DQA  
NC  
ZZ  
LBO  
A
V
FT  
A
DD  
NC  
NC  
A
NC  
V
NC  
NC  
NC  
NC  
NC  
V
U
DDQ  
DDQ  
Rev: 1.11 10/2004  
8/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
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
I
I
I
I
I
I
I
I
I
I
I
I
I
-
Byte Write Enable for DQA, DQB, DQC, DQD I/O’s; active low  
Clock Input Signal; active high  
CK  
BW  
Byte Write—Writes all enabled bytes; active low  
Global Write Enable—Writes all bytes; active low  
Chip Enable; active low  
GW  
E1, E3  
E2  
Chip Enable; active high  
G
Output Enable; active low  
ADV  
ADSP, ADSC  
ZZ  
Burst address counter advance enable; active low  
Address Strobe (Processor, Cache Controller); active low  
Sleep Mode control; active high  
FT  
Flow Through or Pipeline mode; active low  
Linear Burst Order mode; active low  
Core power supply  
LBO  
VDD  
VSS  
I/O and Core Ground  
VDDQ  
NC  
Output driver power supply  
No Connect  
Rev: 1.11 10/2004  
9/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
GS840H18/32/36A Block Diagram  
RegisteQr  
A0–An  
D
A0  
A1  
A0  
A1  
D0  
D1  
Counter  
Load  
Q0  
Q1  
A
LBO  
ADV  
CK  
Memory  
Array  
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  
E3  
E2  
D
Q
Register  
D
Q
FT  
G
1
Power Down  
Control  
DQx1–DQx9  
ZZ  
Note: Only x36 version shown for simplicity.  
Rev: 1.11 10/2004  
10/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
Mode Pin Functions  
Mode Name  
Pin  
Name  
State  
Function  
L
Linear Burst  
Interleaved Burst  
Flow Through  
Pipeline  
Burst Order Control  
LBO  
H or NC  
L
Output Register Control  
FT  
H or NC  
L or NC  
H
Active  
Power Down Control  
ZZ  
Standby, I = I  
DD SB  
Note:  
There are pull-up devices on LBO and FT pins and a pull down device on the ZZ pin, so those 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  
00  
01  
10  
11  
01  
10  
11  
00  
10  
11  
00  
01  
11  
00  
01  
10  
1st address  
2nd address  
3rd address  
00  
01  
10  
11  
01  
00  
11  
10  
10  
11  
00  
01  
11  
10  
01  
00  
4th address  
4th address  
Note:  
Note:  
The burst counter wraps to initial state on the 5th clock.  
The burst counter wraps to initial state on the 5th clock.  
Rev: 1.11 10/2004  
11/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
Byte Write Truth Table  
Function  
Read  
GW  
BW  
H
L
B
A
B
B
B
C
B
D
Notes  
1
H
H
H
H
H
H
H
L
X
H
L
X
H
H
L
X
H
H
H
L
X
H
H
H
H
L
Read  
1
Write byte A  
Write byte B  
Write byte C  
Write byte D  
Write all bytes  
Write all bytes  
L
2, 3  
L
H
H
H
L
2, 3  
L
H
H
L
2, 3, 4  
2, 3, 4  
2, 3, 4  
L
H
L
L
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.  
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: 1.11 10/2004  
12/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
Synchronous Truth Table  
Operation  
State  
Address  
Used  
2
3
4
Diagram  
E1  
ADSP ADSC ADV  
E
W
DQ  
5
Key  
Deselect Cycle, Power Down  
Deselect Cycle, Power Down  
Deselect Cycle, Power Down  
Read Cycle, Begin Burst  
None  
None  
X
X
H
L
X
X
L
L
X
L
X
X
X
X
X
X
L
X
X
X
X
F
T
F
F
T
T
F
F
T
T
High-Z  
F
F
T
T
T
X
X
X
X
X
X
X
X
High-Z  
None  
X
L
L
H
L
High-Z  
External  
External  
External  
Next  
R
X
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
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 E3 = 0; E = F (False) if E2 = 0 or E3 = 1.  
3. W = T (True) and F (False) is defined in the Byte Write Truth Table preceding.  
4. G is an asynchronous input. G 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 synchronous or 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: 1.11 10/2004  
13/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
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, E2, E3) 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: 1.11 10/2004  
14/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
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.  
Rev: 1.11 10/2004  
15/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
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  
+/20  
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 are 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  
Notes  
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 Voltage  
V
3.0  
3.3  
3.6  
DDQ  
DDQ  
DDQ3  
2.5 V V  
I/O Supply Voltage  
V
2.3  
2.5  
2.7  
DDQ2  
Notes:  
1. The part numbers of Industrial Temperature Range versions end the character “I”. Unless otherwise noted, all performance specifica-  
tions quoted are evaluated 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  
Rev: 1.11 10/2004  
16/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
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
1
DD  
IH  
V
Input Low Voltage  
V
0.3  
2.0  
0.8  
+ 0.3  
1
DD  
IL  
V
I/O Input High Voltage  
I/O Input Low Voltage  
V
V
1,3  
1,3  
DDQ  
IHQ  
DDQ  
V
V
0.3  
0.8  
DDQ  
ILQ  
Notes:  
1. The part numbers of Industrial Temperature Range versions end the character “I”. Unless otherwise noted, all performance specifica-  
tions quoted are evaluated 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  
3.  
V
(max) is voltage on V  
pins plus 0.3 V.  
IHQ  
DDQ  
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
1
DD  
IH  
DD  
V
Input Low Voltage  
V
0.3*V  
DD  
0.3  
1
DD  
IL  
V
I/O Input High Voltage  
I/O Input Low Voltage  
V
0.6*V  
V
+ 0.3  
DDQ  
1,3  
1,3  
DDQ  
IHQ  
DD  
V
V
0.3*V  
DD  
0.3  
DDQ  
ILQ  
Notes:  
1. The part numbers of Industrial Temperature Range versions end the character “I”. Unless otherwise noted, all performance specifica-  
tions quoted are evaluated 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  
3.  
V
(max) is voltage on V  
pins plus 0.3 V.  
IHQ  
DDQ  
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 (Industrial Range Versions)  
40  
25  
85  
°C  
A
Notes:  
1. The part numbers of Industrial Temperature Range versions end the character “I”. Unless otherwise noted, all performance specifica-  
tions quoted are evaluated 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  
Rev: 1.11 10/2004  
17/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
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  
Input Capacitance  
4
6
5
7
IN  
IN  
C
V
OUT  
= 0 V  
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 specified 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  
*
50Ω  
30pF  
V
DDQ/2  
* Distributed Test Jig Capacitance  
Rev: 1.11 10/2004  
18/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
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 V  
= 3.135 V  
OH2  
OH  
OH  
V
OH3  
V
I
= 8 mA  
OL  
0.4 V  
OL  
Operating Currents  
-180  
-166  
-150  
-100  
0
to  
–40  
to  
0
to  
–40  
to  
0
to  
–40  
to  
0
to  
–40  
to  
Parameter  
Test Conditions  
Symbol  
Unit  
70°C  
85°C  
70°C  
85°C  
70°C  
85°C  
70°C  
85°C  
IDD  
Pipeline  
Device Selected;  
All other inputs  
VIH or VIL  
Output open  
335  
345  
220  
30  
310  
320  
200  
30  
280  
165  
20  
290  
175  
30  
190  
135  
20  
200  
145  
30  
mA  
mA  
mA  
mA  
mA  
mA  
Operating  
Current  
IDD  
Flow Through  
210  
20  
20  
55  
40  
190  
20  
ISB  
Pipeline  
ZZ VDD –  
Standby  
Current  
0.2 V  
ISB  
Flow Through  
30  
20  
30  
20  
30  
20  
30  
IDD  
Pipeline  
65  
50  
60  
50  
60  
40  
50  
Device Deselected;  
All other inputs  
VIH or VIL  
Deselect  
Current  
IDD  
Flow Through  
50  
40  
50  
35  
45  
35  
45  
Rev: 1.11 10/2004  
19/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
AC Electrical Characteristics  
-180  
-166  
-150  
-100  
Parameter  
Symbol  
Unit  
Min  
5.5  
Max  
Min  
6.0  
Max  
Min  
6.7  
Max  
Min  
10  
Max  
Clock Cycle Time  
tKC  
tKQ  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
Clock to Output Valid  
3.0  
3.5  
3.8  
4.5  
Pipeline  
1.5  
Clock to Output Invalid  
tKQX  
1.5  
1.5  
9.0  
1.5  
1.5  
10.0  
1.5  
1.5  
15.0  
1
Clock to Output in Low-Z  
Clock Cycle Time  
1.5  
12.0  
tLZ  
tKC  
tKQ  
Clock to Output Valid  
8.0  
8.5  
10.0  
12.0  
Flow  
Through  
Clock to Output Invalid  
Clock to Output in Low-Z  
Clock HIGH Time  
tKQX  
3.0  
3.0  
1.3  
1.5  
1.5  
3.0  
3.0  
1.3  
1.5  
1.5  
3.0  
3.0  
1.3  
1.5  
1.5  
3.0  
3.0  
1.3  
1.5  
1.5  
1
tLZ  
tKH  
tKL  
Clock LOW Time  
1
Clock to Output in High-Z  
G to Output Valid  
3.2  
3.2  
3.5  
3.5  
3.8  
3.8  
5
tHZ  
tOE  
5
1
G to output in Low-Z  
0
0
0
0
tOLZ  
1
G to output in High-Z  
Setup time  
1.5  
0.5  
5
3.2  
1.5  
0.5  
5
3.5  
1.5  
0.5  
5
3.8  
2.0  
0.5  
5
5
ns  
ns  
ns  
ns  
tOHZ  
tS  
tH  
Hold time  
2
ZZ setup time  
tZZS  
2
ZZ hold time  
ZZ recovery  
1
1
1
1
ns  
ns  
tZZH  
tZZR  
20  
20  
20  
20  
Notes:  
1. These parameters are sampled and are not 100% tested  
2. ZZ is an asynchronous signal. However, In order to be recognized on any given clock cycle, ZZ must meet the specified setup and hold  
times as specified above.  
Rev: 1.11 10/2004  
20/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
Pipeline Mode Timing  
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  
tS  
ADSC initiated read  
ADSC  
ADV  
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  
Q(C+2) Q(C+3)  
tOE  
tOHZ  
Q(A)  
tH  
tLZ  
Q(C)  
Q(C+1)  
DQa–DQd  
Rev: 1.11 10/2004  
21/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
Flow Through Mode Timing  
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 and E3 only sampled with ADSC  
E2  
tS  
tH  
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  
Rev: 1.11 10/2004  
22/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
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 force the use 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 contention in transitions from reads to writes or between banks of RAMs. DCD SRAMs do not waste bandwidth on  
dummy cycles and 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.  
Rev: 1.11 10/2004  
23/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
GS840H18/32/36A Output Driver Characteristics  
120.0  
100.0  
80.0  
Pull Down Drivers  
60.0  
40.0  
VDDQ  
20.0  
I Out  
0.0  
VOut  
VSS  
-20.0  
-40.0  
-60.0  
-80.0  
-100.0  
-120.0  
-140.0  
Pull Up Drivers  
-0.5  
0
0.5  
1
1.5  
2
2.5  
3
3.5  
4
V Out (Pull Down)  
VDDQ - V Out (Pull Up)  
3.6V PD HD  
3.3V PD HD  
3.1V PD HD  
3.1V PU HD  
3.3V PU HD  
3.6V PU HD  
Rev: 1.11 10/2004  
24/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
TQFP Package Drawing (Package T)  
θ
L
c
L1  
Symbol  
Description  
Standoff  
Min. Nom. Max  
A1  
A2  
b
0.05  
1.35  
0.20  
0.09  
0.10  
1.40  
0.30  
0.15  
1.45  
0.40  
0.20  
22.1  
20.1  
16.1  
14.1  
Body Thickness  
Lead Width  
c
Lead Thickness  
D
Terminal Dimension 21.9  
Package Body 19.9  
Terminal Dimension 15.9  
22.0  
20.0  
16.0  
14.0  
0.65  
0.60  
1.00  
e
D1  
E
b
E1  
e
Package Body  
Lead Pitch  
13.9  
L
Foot Length  
Lead Length  
Coplanarity  
Lead Angle  
0.45  
0.75  
L1  
Y
A1  
A2  
E1  
E
0.10  
7°  
θ
0°  
Notes:  
1. All dimensions are in millimeters (mm).  
2. Package width and length do not include mold protrusion.  
Rev: 1.11 10/2004  
25/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
Package Dimensions—119-Bump FPBGA (Package B, Variation 1)  
Pin #1 Corner  
BOTTOM VIEW  
S
S
A1  
Ø0.10  
C
S
S
Ø0.30 C A  
B
Ø0.60~0.90 (119x)  
1
2
3
4 5 6 7  
Ø1.00(3x) REF  
7
6
5
4 3  
2
1
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
B
0.70 REF  
1.27  
7.62  
12.00  
14±0.20  
A
0.20(4x)  
SEATING PLANE  
C
Rev: 1.11 10/2004  
26/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
Ordering Information for GSI Synchronous Burst RAMs  
2
Speed  
3
1
Org  
Type  
Package  
Status  
T
Part Number  
A
(MHz/ns)  
256K x 18  
256K x 18  
256K x 18  
256K x 18  
128K x 32  
128K x 32  
128K x 32  
128K x 32  
128K x 36  
128K x 36  
128K x 36  
128K x 36  
256K x 18  
256K x 18  
256K x 18  
256K x 18  
128K x 32  
128K x 32  
128K x 32  
128K x 32  
128K x 36  
128K x 36  
128K x 36  
128K x 36  
256K x 18  
256K x 18  
256K x 18  
256K x 18  
128K x 32  
GS840H18AT-180  
GS840H18AT-166  
GS840H18AT-150  
GS840H18AT-100  
GS840H32AT-180  
GS840H32AT-166  
GS840H32AT-150  
GS840H32AT-100  
GS840H36AT-180  
GS840H36AT-166  
GS840H36AT-150  
GS840H36AT-100  
GS840H18AT-180I  
GS840H18AT-166I  
GS840H18AT-150I  
GS840H18AT-100I  
GS840H32AT-180I  
GS840H32AT-166I  
GS840H32AT-150I  
GS840H32AT-100I  
GS840H36AT-180I  
GS840H36AT-166I  
GS840H36AT-150I  
GS840H36AT-100I  
GS840H18AGT-180  
GS840H18AGT-166  
GS840H18AGT-150  
GS840H18AGT-100  
GS840H32AGT-180  
GS840H32AGT-166  
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/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/Flow Through  
Pipeline/Flow Through  
Pipeline/Flow Through  
Pipeline/Flow Through  
TQFP  
TQFP  
180/8  
166/8.5  
150/10  
100/12  
180/8  
C
C
C
C
C
C
C
C
C
C
C
C
I
TQFP  
TQFP  
TQFP  
TQFP  
166/8.5  
150/10  
100/12  
180/8  
TQFP  
TQFP  
TQFP  
TQFP  
166/8.5  
150/10  
100/12  
180/8  
TQFP  
TQFP  
TQFP  
TQFP  
166/8.5  
150/10  
100/12  
180/8  
I
TQFP  
C
C
I
TQFP  
TQFP  
TQFP  
166/8.5  
150/10  
100/12  
180/8  
I
TQFP  
C
C
I
TQFP  
TQFP  
TQFP  
166/8.5  
150/10  
100/12  
180/8  
I
TQFP  
C
C
C
C
C
C
C
C
TQFP  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
166/8.5  
150/10  
100/12  
180/8  
128K x 32  
166/8.5  
Notes:  
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number. Example: GS840H32AT-8T.  
2. The speed column indicates the cycle frequency (MHz) of the device in Pipelined mode and the latency (ns) in Flow Through mode. Each  
device is Pipeline/Flow through mode-selectable by the user.  
3. TA = C = Commercial Temperature Range. TA = I = Industrial Temperature Range.  
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: 1.11 10/2004  
27/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
Ordering Information for GSI Synchronous Burst RAMs (Continued)  
2
Speed  
3
1
Org  
Type  
Package  
Status  
T
Part Number  
A
(MHz/ns)  
128K x 32  
128K x 32  
128K x 36  
128K x 36  
128K x 36  
128K x 36  
GS840H32AGT-150  
GS840H32AGT-100  
GS840H36AGT-180  
GS840H36AGT-166  
GS840H36AGT-150  
GS840H36AGT-100  
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/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/Flow Through  
Pipeline/Flow Through  
Pipeline/Flow Through  
Pipeline/Flow Through  
Pipeline/Flow Through  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
Pb-free TQFP  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
150/10  
100/12  
180/8  
C
C
C
C
C
C
I
166/8.5  
150/10  
100/12  
180/8  
256K x 18 GS840H18AGT-180I  
256K x 18 GS840H18AGT-166I  
256K x 18 GS840H18AGT-150I  
256K x 18 GS840H18AGT-100I  
128K x 32 GS840H32AGT-180I  
128K x 32 GS840H32AGT-166I  
128K x 32 GS840H32AGT-150I  
128K x 32 GS840H32AGT-100I  
128K x 36 GS840H36AGT-180I  
128K x 36 GS840H36AGT-166I  
128K x 36 GS840H36AGT-150I  
128K x 36 GS840H36AGT-100I  
166/8.5  
150/10  
100/12  
180/8  
I
C
C
I
166/8.5  
150/10  
100/12  
180/8  
I
C
C
I
166/8.5  
150/10  
100/12  
180/8  
I
C
C
C
C
C
C
C
C
C
C
C
C
C
C
I
256K x 18  
256K x 18  
256K x 18  
256K x 18  
128K x 32  
128K x 32  
128K x 32  
128K x 32  
128K x 36  
128K x 36  
128K x 36  
128K x 36  
GS840H18AB-180  
GS840H18AB-166  
GS840H18AB-150  
GS840H18AB-100  
GS840H32AB-180  
GS840H32AB-166  
GS840H32AB-150  
GS840H32AB-100  
GS840H36AB-180  
GS840H36AB-166  
GS840H36AB-150  
GS840H36AB-100  
GS840H18AB-180I  
166/8.5  
150/10  
100/12  
180/8  
166/8.5  
150/10  
100/12  
180/8  
166/8.5  
150/10  
100/12  
180/8  
256K x 18  
Notes:  
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number. Example: GS840H32AT-8T.  
2. The speed column indicates the cycle frequency (MHz) of the device in Pipelined mode and the latency (ns) in Flow Through mode. Each  
device is Pipeline/Flow through mode-selectable by the user.  
3. TA = C = Commercial Temperature Range. TA = I = Industrial Temperature Range.  
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: 1.11 10/2004  
28/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
Ordering Information for GSI Synchronous Burst RAMs (Continued)  
2
Speed  
3
1
Org  
Type  
Package  
Status  
T
Part Number  
A
(MHz/ns)  
256K x 18  
256K x 18  
256K x 18  
128K x 32  
128K x 32  
128K x 32  
128K x 32  
128K x 36  
128K x 36  
128K x 36  
GS840H18AB-166I  
GS840H18AB-150I  
GS840H18AB-100I  
GS840H32AB-180I  
GS840H32AB-166I  
GS840H32AB-150I  
GS840H32AB-100I  
GS840H36AB-180I  
GS840H36AB-166I  
GS840H36AB-150I  
GS840H36AB-100I  
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  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
119 BGA (var. 1)  
166/8.5  
150/10  
100/12  
180/8  
I
C
C
I
166/8.5  
150/10  
100/12  
180/8  
I
C
C
I
166/8.5  
150/10  
100/12  
I
C
C
128K x 36  
Notes:  
1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number. Example: GS840H32AT-8T.  
2. The speed column indicates the cycle frequency (MHz) of the device in Pipelined mode and the latency (ns) in Flow Through mode. Each  
device is Pipeline/Flow through mode-selectable by the user.  
3. TA = C = Commercial Temperature Range. TA = I = Industrial Temperature Range.  
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: 1.11 10/2004  
29/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
GS840H18/32/36AT/B-180/166/150/100  
4Mb Burst Datasheet Revision History  
Types of Changes  
Rev. Code: Old;  
Page /Revisions;Reason  
New  
Format or Content  
Format/Typos  
Content  
• Document/Continued changing to new format.  
GS84018/32/36 Rev 1.02c 5/  
1999;  
GS84018/32/36 8/1999D  
Took “E” out of 840HE...in Core and Interface Voltages.  
• Pin outs/New small caps format.  
Format/Typos  
• Timing Diagrams/New format.  
• Block Diagrams/New small caps format.  
GS84018/32/36 8/  
1999;GS84018/32/36 9/  
1999E  
• Pin outs/x32 & x36 TQFP/Changed pin 72 from DQA3 to  
DQB3.  
• Pin Description/Rearranged Address Inputs to match order on  
TQFP Pinout.  
Content  
• TQFP Package Diagram/Corrected Dimension D Max from  
20.1 to 22.1.  
GS84018/32/36 9/  
1999E;GS84018/32/36  
• New GSI Logo  
GS84018/32/3610-11/  
1999;GS84018/32/362/  
2000G  
Took “Pin” out of heading for consistency.  
Format  
• Corrected all part order numbers  
GS84018/32/362/2000G;  
840H18A_r1_04  
Content  
Content  
Content  
• Updated pin description table  
840H18A_r1_04;  
840H18A_r1_05  
• Updated BGA pin description table to meet JEDEC standard  
840H18A_r1_05;  
840H18A_r1_06  
• Updated table on page 1  
• Updated Operating Currents table on page 18  
• Updated AC Electrical Characteristics table on page 19  
• Added 150 MHz and 100 MHz  
840H18A_r1_06;  
840H18A_r1_07  
Content/Format  
• Updated format to comply with Technical Publications  
standards  
• Reduced I by 20 mA in table on page 1 and Operating  
Currents table  
840H18A_r1_07;  
840E18_r1_08  
DD  
Content  
Content  
• Removed 200 MHz references from entire datasheet  
840H18A_r1_08;  
840H18_r1_09  
• Updated format  
840H18A_r1_09;  
840H18A_r1_10  
Content  
Content  
• Matched current numbers to NBT parts  
• Removed Preliminary banner  
• Added Pb-free TQFP information  
840H18A_r1_10;  
840H18A_r1_11  
• Added variation number to 119 BGA information  
Rev: 1.11 10/2004  
30/30  
© 1999, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  

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