GS8182S08_技术文档

GS8182S08/09/18/36BD-400/375/333/300/250/200/167

400 MHz–167 MHz

18Mb Burst of 2

SigmaSIO DDR-II^TMSRAM

165-Bump BGA

Commercial Temp

Industrial Temp

1.8 V V

DD

1.8 V and 1.5 V I/O

Features

• Simultaneous Read and Write SigmaSIO™ Interface

• JEDEC-standard pinout and package

• Dual Double Data Rate interface

• Byte Write controls sampled at data-in time

• DLL circuitry for wide output data valid window and future

frequency scaling

• Burst of 2 Read and Write

• 1.8 V +100/–100 mV core power supply

• 1.5 V or 1.8 V HSTL Interface

• Pipelined read operation

• Fully coherent read and write pipelines

• ZQ mode pin for programmable output drive strength

• IEEE 1149.1 JTAG-compliant Boundary Scan

• Pin-compatible with present 9Mb, 36Mb, and 72Mb and

future 144Mb devices

Bottom View

165-Bump, 13 mm x 15 mm BGA

1 mm Bump Pitch, 11 x 15 Bump Array

JEDEC Std. MO-216, Variation CAB-1

• 165-bump, 13 mm x 15 mm, 1 mm bump pitch BGA package

• RoHS-compliant 165-bump BGA package available

K clocks are routed internally to fire the output registers

instead. Each Burst of 2 SigmaSIO DDR-II SRAM also

supplies Echo Clock outputs, CQ and CQ, which are

synchronized with read data output. When used in a source

synchronous clocking scheme, the Echo Clock outputs can be

used to fire input registers at the data’s destination.

SigmaSIO DDR-II™ Family Overview

GS8182S08/09/18/36BD are built in compliance with the

SigmaSIO DDR-II SRAM pinout standard for Separate I/O

synchronous SRAMs. They are 18,874,368-bit (18Mb)

SRAMs. These are the first in a family of wide, very low

voltage HSTL I/O SRAMs designed to operate at the speeds

needed to implement economical high performance

networking systems.

Each internal read and write operation in a SigmaSIO DDR-II

B2 RAM is two times wider than the device I/O bus. An input

data bus de-multiplexer is used to accumulate incoming data

before it is simultaneously written to the memory array. An

output data multiplexer is used to capture the data produced

from a single memory array read and then route it to the

appropriate output drivers as needed. Therefore, the address

field of a SigmaSIO DDR-II B2 is always one address pin less

than the advertised index depth (e.g., the 2M x 8 has a 1M

addressable index).

Clocking and Addressing Schemes

A Burst of 2 SigmaSIO DDR-II SRAM is a synchronous

device. It employs dual input register clock inputs, K and K.

The device also allows the user to manipulate the output

register clock input quasi independently with dual output

register clock inputs, C and C. If the C clocks are tied high, the

Parameter Synopsis

-400

2.5 ns

0.45 ns

-375

-333

3.0 ns

0.45 ns

-300

3.3 ns

0.45 ns

-250

4.0 ns

0.45 ns

-200

5.0 ns

0.45 ns

-167

tKHKH

tKHQV

2.67 ns

0.45 ns

6.0 ns

0.5 ns

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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

GS8182S08/09/18/36BD-400/375/333/300/250/200/167

2M x 8 SigmaQuad SRAM—Top View

1

2

3

4

5

6

7

8

9

10

11

NC/SA

(72Mb)

NC/SA

(144Mb)

NC/SA

(36Mb)

A

B

CQ

SA

R/W

NW1

K

LD

SA

CQ

NC/SA

(288Mb)

NC

SA

K

NW0

SA

NC

Q3

SA

C

D

E

F

NC

D4

NC

D5

NC

Q4

NC

Q5

V

SA

V

NC

D2

D3

NC

Q2

NC

ZQ

D1

SS

V

SS

DD

SS

DD

V

DDQ

V

NC

DDQ

G

H

J

V

D

V

REF

OFF

REF

DDQ

NC

Q6

NC

Q1

NC

TMS

K

L

NC

D6

NC

Q7

SA

V

NC

SA

NC

Q0

D0

V

DDQ

SS

M

N

P

R

NC

D7

V

SS

NC

V

SA

C

SA

V

NC

TDI

NC

TCK

SA

TDO

C

2

11 x 15 Bump BGA—13 x 15 mm Body—1 mm Bump Pitch

Note:

NW0 controls writes to D0:D3. NW1 controls writes to D4:D7.

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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

GS8182S08/09/18/36BD-400/375/333/300/250/200/167

2M x 9 SigmaQuad SRAM—Top View

1

2

3

4

5

6

7

8

9

10

11

NC/SA

(72Mb)

NC/SA

(144Mb)

NC/SA

(36Mb)

A

B

CQ

SA

R/W

NC

K

LD

SA

CQ

NC/SA

(288Mb)

NC

SA

K

BW

SA

NC

Q4

SA

C

D

E

F

NC

Doff

NC

TDO

NC

D5

NC

D6

NC

Q5

NC

Q6

V

SA

V

NC

D3

D4

NC

Q3

NC

ZQ

D2

NC

Q1

D1

NC

Q0

TDI

SS

V

SS

DD

SS

DD

V

DDQ

V

NC

DDQ

G

H

J

V

REF

DDQ

NC

Q7

NC

Q2

NC

D0

K

L

NC

D7

NC

Q8

SA

V

NC

SA

V

DDQ

SS

M

N

P

R

NC

D8

V

SS

V

SA

C

SA

V

NC

TCK

SA

C

TMS

2

11 x 15 Bump BGA—13 x 15 mm Body—1 mm Bump Pitch

Note:

BW controls writes to D0:D7.

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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

GS8182S08/09/18/36BD-400/375/333/300/250/200/167

1M x 18 SigmaQuad SRAM—Top View

1

2

3

4

5

6

7

8

9

10

11

NC/SA

(144Mb) (36Mb)

NC/SA

(288Mb)

NC/SA

(72Mb)

A

CQ

R/W

BW1

K

LD

SA

CQ

B

C

D

E

F

NC

Q9

NC

D9

SA

NC

SA

K

BW0

SA

NC

Q7

NC

D6

NC

Q8

D8

D7

Q6

Q5

D5

ZQ

D4

Q3

Q2

D2

D1

Q0

TDI

D10

Q10

Q11

D12

Q13

V

SA

V

SS

D11

NC

V

SS

DD

SS

DD

V

DDQ

Q12

D13

V

DDQ

G

H

J

V

D

V

REF

OFF

REF

DDQ

NC

D14

Q14

D15

D16

Q16

Q17

SA

NC

Q4

D3

K

L

NC

Q15

NC

V

NC

SA

V

NC

Q1

DDQ

SS

M

N

P

R

NC

V

SS

NC

D17

NC

V

SA

C

SA

V

NC

D0

NC

SA

TDO

TCK

C

TMS

2

11 x 15 Bump BGA—13 x 15 mm Body—1 mm Bump Pitch

Note:

BW0 controls writes to D0:D8. BW1 controls writes to D9:D17.

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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

GS8182S08/09/18/36BD-400/375/333/300/250/200/167

512K x 36 SigmaQuad SRAM—Top View

1

2

3

4

5

6

7

8

9

10

11

NC/SA

(288Mb) (72Mb)

NC/SA

(36Mb) (144Mb)

NC/SA

A

CQ

R/W

BW2

K

BW1

LD

CQ

B

C

D

E

F

Q27

D27

D28

Q29

Q30

D30

Q18

Q28

D20

D29

Q21

D22

D18

D19

Q19

Q20

D21

Q22

SA

BW3

SA

K

BW0

SA

D17

D16

Q16

Q15

D14

Q13

Q17

Q7

Q8

D8

D7

Q6

Q5

D5

ZQ

D4

Q3

Q2

D2

D1

Q0

TDI

V

SA

V

SS

V

D15

D6

SS

DD

SS

DD

V

DDQ

V

Q14

D13

DDQ

G

H

J

V

D

V

REF

OFF

REF

DDQ

D31

Q31

D23

Q23

D24

D25

Q25

Q26

SA

D12

Q12

D11

D10

Q10

Q9

Q4

K

L

Q32

Q33

D33

D34

Q35

TDO

D32

Q24

Q34

D26

D35

TCK

V

D3

Q11

Q1

V

DDQ

SS

M

N

P

R

V

SS

V

SA

C

SA

V

D9

SA

D0

C

SA

TMS

2

11 x 15 Bump BGA—15 x 17 mm Body—1 mm Bump Pitch

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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

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Pin Description Table

Symbol

SA

Description

Type

Input

Comments

Synchronous Address Inputs

Read/Write Contol Pin

—

R/W

Write Active Low; Read Active High

Active Low

x08 Only

NW0–NW1

BW

Synchronous Nybble Writes

Synchronous Byte Writes

Input

Active Low

x09 Only

Active Low

x18/x36 Only

BW0–BW3

K

Input Clock

Output Clock

Input

Output

Input

Output

—

Active High

C

Active High

TMS

TDI

TCK

TDO

V_REF

Test Mode Select

—

Test Data Input

—

Test Clock Input

Test Data Output

—

HSTL Input Reference Voltage

Output Impedance Matching Input

Input Clock

—

ZQ

K

—

Active Low

Active High

—

C

Output Clock

D_OFF

DLL Disable

LD

CQ

Dn

Synchronous Load Pin

Output Echo Clock

Synchronous Data Inputs

Synchronous Data Outputs

Power Supply

—

Output

Input

Output

Supply

Qn

—

V_DD

1.8 V Nominal

V_DDQ

V_SS

NC

Isolated Output Buffer Supply

Power Supply: Ground

No Connect

Supply

—

1.8 or 1.5 V Nominal

—

Notes:

1. C, C, K, or K cannot be set to V

voltage.

REF

2. When ZQ pin is directly connected to V , output impedance is set to minimum value and it cannot be connected to ground or left

DD

unconnected.

3. NC = Not Connected to die or any other pin.

Background

Separate I/O SRAMs, like SigmaQuad SRAMs, are attractive in applications where alternating reads and writes are needed. On the

other hand, Common I/O SRAMs like the SigmaCIO family are popular in applications where bursts of read or write traffic are

needed. The SigmaSIO SRAM is a hybrid of these two devices. Like the SigmaQuad family devices, the SigmaSIO features a

separate I/O data path, offering the user independent Data In and Data Out pins. However, the SigmaSIO devices offer a control

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protocol like that offered on the SigmaCIO devices. Therefore, while SigmaQuad SRAMs allow a user to operate both data ports at

the same time, they force alternating loads of read and write addresses. SigmaSIO SRAMs allow continuous loads of read or write

addresses like SigmaCIO SRAMs, but in a separate I/O configuration.

Like a SigmaQuad SRAM, a SigmaSIO DDR-II SRAM can execute an alternating sequence of reads and writes. However, doing

so results in the Data In port and the Data Out port stalling with nothing to do on alternate transfers. A SigmaQuad device would

keep both ports running at capacity full time. On the other hand, the SigmaSIO device can accept a continuous stream of read

commands and read data or a continuous stream of write commands and write data. The SigmaQuad device, by contrast, restricts

the user from loading a continuous stream of read or write addresses. The advantage of the SigmaSIO device is that it allows twice

the random address bandwidth for either reads or writes than could be acheived with a SigmaQuad version of the device.

SigmaCIO SRAMs offer this same advantage, but do not have the separate Data In and Data Out pins offered on the SigmaSIO

SRAMs. Therefore, SigmaSIO devices are useful in psuedo dual port SRAM applications where communication of burst traffic

between two electrically independent busses is desired.

Each of the three SigmaQuad Family SRAMs—SigmaQuad, SigmaCIO, and SigmaSIO—supports similar address rates because

random address rate is determined by the internal performance of the RAM. In addition, all three SigmaQuad Family SRAMs are

based on the same internal circuits. Differences between the truth tables of the different devices proceed from differences in how

the RAM’s interface is contrived to interact with the rest of the system. Each mode of operation has its own advantages and

disadvantages. The user should consider the nature of the work to be done by the RAM to evaluate which version is best suited to

the application at hand.

Burst of 2 Sigma SIO-II SRAM DDR Read

The status of the Address Input, R/W, and LD pins are sampled at each rising edge of K. LD high causes chip disable. A high on

the R/W pin begins a read cycle. The two resulting data output transfers begin after the next rising edge of the K clock. Data is

clocked out by the next rising edge of the C if it is active. Otherwise, data is clocked out at the next rising edge of K. The next data

chunk is clocked out on the rising edge of C, if active. Otherwise, data is clocked out on the rising edge of K.

Burst of 2 Sigma SIO-II SRAM DDR Write

The status of the Address Input, R/W, and LD pins are sampled at each rising edge of K. LD high causes chip disable. A low on the

R/W pin, begins a write cycle. Data is clocked in by the next rising edge of K and then the rising edge of K.

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Power-Up Sequence for SigmaQuad-II SRAMs

SigmaQuad-II SRAMs must be powered-up in a specific sequence in order to avoid undefined operations.

Power-Up Sequence

1. Power-up and maintain Doff at low state.

1a. Apply V

1b. Apply V

1c. Apply V

.

DD

.

DDQ

(may also be applied at the same time as V

).

REF

DDQ

2. After power is achieved and clocks (K, K, C, C) are stablized, change Doff to high.

3. An additional 1024 clock cycles are required to lock the DLL after it has been enabled.

Note:

If you want to tie Doff high with an unstable clock, you must stop the clock for a minimum of 30 ns to reset the DLL after

the clocks become stablized.

DLL Constraints

• The DLL synchronizes to either K or C clock. These clocks should have low phase jitter (t_KCVaron page 21).

• The DLL cannot operate at a frequency lower than that specified by the t_KHKHmaximum specification for the desired operating clock frequency.

• If the incoming clock is not stablized when DLL is enabled, the DLL may lock on the wrong frequency and cause undefined errors or failures during

the initial stage.

Note:

If the frequency is changed, DLL reset is required. After reset, a minimum of 1024 cycles is required for DLL lock.

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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

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Special Functions

Byte Write and Nybble Write Control

Byte Write Enable pins are sampled at the same time that Data In is sampled. A high on the Byte Write Enable pin associated with

a particular byte (e.g., BW0 controls D0–D8 inputs) will inhibit the storage of that particular byte, leaving whatever data may be

stored at the current address at that byte location undisturbed. Any or all of the Byte Write Enable pins may be driven high or low

during the data in sample times in a write sequence.

Each write enable command and write address loaded into the RAM provides the base address for a 2 beat data transfer. The x18

version of the RAM, for example, may write 36 bits in association with each address loaded. Any 9-bit byte may be masked in any

write sequence.

Nybble Write (4-bit) control is implemented on the 8-bit-wide version of the device. For the x8 version of the device, “Nybble

Write Enable” and “NWx” may be substituted in all the discussion above.

Example x18 RAM Write Sequence using Byte Write Enables

Data In Sample Time

BW0

BW1

D0–D8

Data In

D9–D17

Don’t Care

Data In

Beat 1

Beat 2

0

1

0

Don’t Care

Resulting Write Operation

Beat 1

Beat 2

D0–D8

D9–D17

Unchanged

D0–D8

Unchanged

D9–D17

Written

Output Register Control

SigmaSIO DDR-II SRAMs offer two mechanisms for controlling the output data registers. Typically, control is handled by the

Output Register Clock inputs, C and C. The Output Register Clock inputs can be used to make small phase adjustments in the firing

of the output registers by allowing the user to delay driving data out as much as a few nanoseconds beyond the next rising edges of

the K and K clocks. If the C and C clock inputs are tied high, the RAM reverts to K and K control of the outputs.

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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

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Example Four Bank Depth Expansion Schematic

R/W

3

LD

3

R/W

2

LD

2

R/W

1

LD

R/W

1

0

LD

0

A –A

0

n

K

D –D

1

n

Bank 3

Bank 1

Bank 2

Bank 0

A

R/W

LD

K

LD

K

LD

K

D

C

Q

D

C

Q

D

C

Q

D

C

Q

C

Q –Q

1

n

Note:

For simplicity BWn is not shown.

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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

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Burst of 2 SigmaSIO DDR-II SRAM Depth Expansion

Write B

Read C

Write D

Read E

Write F

Read G

Read H

Read J

NOP

K

Address

B

C

D

E

F

G

H

J

LD Bank 1

LD Bank 2

R/W Bank 1

R/W Bank 2

BWx Bank 1

BWx Bank 2

D Bank 1

D Bank 2

C Bank 1

Q Bank 1

CQ Bank 1

C Bank 2

Q Bank 2

CQ Bank 2

B+1

F+1

B

F

D+1

D

E

E+1

H

H+1

C

C+1

G

G+1

J

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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

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FLXDrive-II Output Driver Impedance Control

HSTL I/O SigmaSIO DDR-II SRAMs are supplied with programmable impedance output drivers. The ZQ pin must be connected

to V via an external resistor, RQ, to allow the SRAM to monitor and adjust its output driver impedance. The value of RQ must be

SS

5X the value of the intended line impedance driven by the SRAM. The allowable range of RQ to guarantee impedance matching

with a vendor-specified tolerance is between 175Ω and 350Ω. Periodic readjustment of the output driver impedance is necessary as

the impedance is affected by drifts in supply voltage and temperature. The SRAM’s output impedance circuitry compensates for

drifts in supply voltage and temperature. A clock cycle counter periodically triggers an impedance evaluation, resets and counts

again. Each impedance evaluation may move the output driver impedance level one step at a time towards the optimum level.

Separate I/O Burst of 2 Sigma SIO-II SRAM Truth Table

Current

Operation

A

LD

R/W

D

Q

K ↑

n

K ↑

n

K ↑

n

K ↑

n

K ↑

n+1

K ↑

n+1

K ↑

n+1

(t )

(t

)

(t

)

(t

)

(t

)

n+1

Hi-Z

Q0

X

1

0

X

1

0

Deselect

Read

X

—

V

X

—

Q1

—

Write

D0

D1

Hi-Z

Notes:

1. “1” = input “high”; “0” = input “low”; “V” = input “valid”; “X” = input “don’t care”

2. “—” indicates that the input requirement or output state is determined by the next operation.

3. Q0 and Q1 indicate the first and second pieces of output data transferred during Read operations.

4. D0 and D1 indicate the first and second pieces of input data transferred during Write operations.

5. Qs are tristated for one cycle in response to Deselect and Write commands, one cycle after the command is sampled, except when pre-

ceded by a Read command.

6. CQ is never tristated.

7. Users should not clock in metastable addresses.

x18 Byte Write Clock Truth Table

BW

Current Operation

D

K ↑

n+1

K ↑

n+2

K ↑

n

K ↑

n+1

K ↑

n+2

(t

)

(t

)

(t )

(t

)

(t

)

Write

T

D1

D2

Dx stored if BWn = 0 in both data transfers

Write

T

F

T

F

D1

X

D2

X

Dx stored if BWn = 0 in 1st data transfer only

Write

Dx stored if BWn = 0 in 2nd data transfer only

Write Abort

No Dx stored in either data transfer

X

Notes:

1. “1” = input “high”; “0” = input “low”; “X” = input “don’t care”; “T” = input “true”; “F” = input “false”.

2. If one or more BWn = 0, then BW = “T”, else BW = “F”.

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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

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x36 Byte Write Enable (BWn) Truth Table

BW3

BW2

BW1

BW0

D27–D35

Don’t Care

Data In

D18–D26

Don’t Care

Data In

D9–D17

Don’t Care

Data In

D0–D8

Don’t Care

Data In

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

1

0

Don’t Care

Data In

Don’t Care

Data In

Don’t Care

Data In

Don’t Care

Data In

Don’t Care

Data In

Don’t Care

Data In

Don’t Care

Data In

Don’t Care

Data In

Don’t Care

Data In

Don’t Care

Data In

Don’t Care

Data In

x8 Nybble Write Enable (NWn) Truth Table

NW1

NW0

D9–D17

Don’t Care

Data In

D0–D8

Don’t Care

Data In

1

0

1

0

1

0

Don’t Care

Data In

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Absolute Maximum Ratings

(All voltages reference to V

)

SS

Symbol

V_DD

Description

Value

–0.5 to 2.9

Unit

Voltage on V_DDPins

Voltage in V_DDQPins

Voltage in V_REFPins

V

V_DDQ

V_REF

V_I/O

–0.5 to V_DD

V

–0.5 to V_DDQ

–0.5 to V_DDQ+0.3 (≤ 2.9 V max.)

Voltage on I/O Pins

V

V_IN

Voltage on Other Input Pins

Input Current on Any Pin

V

I_IN

+/–100

125

mA dc

I_OUT

Output Current on Any I/O Pin

Maximum Junction Temperature

Storage Temperature

^oC

T_J

T_STG

–55 to 125

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 Recommended Operating Conditions, for an extended period of time, may affect

reliability of this component.

Recommended Operating Conditions

Power Supplies

Parameter

Supply Voltage

Symbol

V_DD

Min.

1.7

Typ.

1.8

—

Max.

1.9

Unit

V

V_DDQ

V_REF

I/O Supply Voltage

Reference Voltage

1.4

1.9

V

0.68

—

0.95

V

Notes:

1. Unless otherwise noted, all performance specifications quoted are evaluated for worst case at both 1.4 V ≤ V

≤ 1.6 V (i.e., 1.5 V I/O)

DDQ

and 1.7 V ≤ V

≤ 1.9 V (i.e., 1.8 V I/O) and quoted at whichever condition is worst case.

DDQ

2. The power supplies need to be powered up simultaneously or in the following sequence: V , V , V , followed by signal inputs. The

DD DDQ REF

power down sequence must be the reverse. V

must not exceed V .

DD

DDQ

Operating Temperature

Parameter

Symbol

Min.

Typ.

Max.

Unit

Ambient Temperature

(Commercial Range Versions)

T_A

0

25

70

°C

Ambient Temperature

(Industrial Range Versions)

T_A

–40

25

85

°C

Rev: 1.03c 11/2011

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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

GS8182S08/09/18/36BD-400/375/333/300/250/200/167

HSTL I/O DC Input Characteristics

Parameter

DC Input Logic High

Symbol

V_IH(dc)

V_IL(dc)

Min

Max

Units

mV

Notes

1, 4

V_REF+ 0.1

V_DDQ+ 0.3

V_REF– 0.1

–0.3

mV

1, 3

DC Input Logic Low

Notes:

1. Compatible with both 1.8 V and 1.5 V I/O drivers.

2. These are DC test criteria. DC design criteria is V

± 50 mV. The AC V /V levels are defined separately for measuring timing

REF

IH IL

parameters.

3. V (Min) DC = –0.3 V, V (Min) AC = –1.5 V (pulse width ≤ 3 ns)

IL

4.

V

(Max) DC = V

+ 0.3 V, V (Max) AC = V

+ 0.85 V (pulse width ≤ 3 ns)

IH

DDQ

IH

DDQ

HSTL I/O AC Input Characteristics

Parameter

AC Input Logic High

Symbol

V_IH(ac)

V_IL(ac)

Min

Max

—

Units

mV

Notes

2, 3

1

V_REF+ 0.2

V_REF– 0.2

5% V_REF(DC)

—

mV

AC Input Logic Low

V

Peak-to-Peak AC Voltage

V_REF(ac)

mV

REF

Notes:

1. The peak-to-peak AC component superimposed on V

may not exceed 5% of the DC component of V

.

REF

2. To guarantee AC characteristics, V ,V , Trise, and Tfall of inputs and clocks must be within 10% of each other.

IH IL

3. For devices supplied with HSTL I/O input buffers. Compatible with both 1.8 V and 1.5 V I/O drivers.

Undershoot Measurement and Timing

Overshoot Measurement and Timing

V

IH

20% tKHKH

V

+ 1.0 V

DD

V

SS

50%

V

DD

V

– 1.0 V

SS

20% tKHKH

V

IL

Capacitance

o

(T = 25 C, f = 1 MHZ, V = 3.3 V)

A

DD

Parameter

Symbol

C_IN

Test conditions

V_IN= 0 V

Typ.

Max.

Unit

pF

Input Capacitance

Output Capacitance

4

6

5

7

C_OUT

V_OUT= 0 V

pF

Note:

This parameter is sample tested.

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AC Test Conditions

Parameter

Input high level

Conditions

V_DDQ

Input low level

0 V

Max. input slew rate

Input reference level

2 V/ns

V_DDQ/2

Output reference level

Note:

Test conditions as specified with output loading as shown unless otherwise noted.

AC Test Load Diagram

DQ

RQ = 250 Ω (HSTL I/O)

= 0.75 V

V

REF

50Ω

VT = V /2

DDQ

Input and Output Leakage Characteristics

Parameter

Symbol

I_IL

Test Conditions

Min.

Max

Input Leakage Current

(except mode pins)

V_IN= 0 to V_DD

–2 uA

2 uA

V_DD≥ V_IN≥ V_IL

0 V ≤ V_IN≤ V_IL

–100 uA

–2 uA

2 uA

I_INDOFF

Doff

Output Disable,

V_OUT= 0 to V_DDQ

I_OL

Output Leakage Current

–2 uA

2 uA

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Programmable Impedance HSTL Output Driver DC Electrical Characteristics

Parameter

Symbol

V_OH1

Min.

Max.

Units

Notes

1, 3

V_DDQ/2 – 0.12

V_DDQ– 0.2

V_DDQ/2 + 0.12

V_DDQ

V

Output High Voltage

Output Low Voltage

Output High Voltage

V_OL1

2, 3

V_OH2

4, 5

V_OL2

Vss

0.2

4, 6

Output Low Voltage

Notes:

1.

I

= (V /2) / (RQ/5) +/– 15% @ V = V /2 (for: 175Ω ≤ RQ ≤ 350Ω)

DDQ OH DDQ

OH

2.

I

= (V /2) / (RQ/5) +/– 15% @ V = V /2 (for: 175Ω ≤ RQ ≤ 350Ω)

OL

DDQ

OL

DDQ

3. Parameter tested with RQ = 250Ω and V

4. 0Ω ≤ RQ ≤ ∞Ω

= 1.5 V or 1.8 V.

DDQ

5.

I

= –1.0 mA

OH

6.

I

= 1.0 mA

OL

Operating Currents

-400

-375

-333

-300

-250

-200

-167

Parameter

Symbol

Test Conditions

Notes

0

to

–40

to

0

to

–40

to

0

to

–40

to

0

to

–40

to

0

to

–40

to

0

to

–40

to

0

to

–40

to

70°C 85°C 70°C 85°C 70°C 85°C 70°C 85°C 70°C 85°C 70°C 85°C 70°C 85°C

V

= Max, I

= 0 mA

OUT

905

mA

915

mA

855

mA

905

mA

645

mA

655

mA

595

mA

605

mA

515

mA

525

mA

435

mA

445

mA

380

mA

390

mA

Operating Current

(x36): DDR

DD

I

2, 3

DD

Cycle Time ≥ t

Min

KHKH

V

= Max, I

= 0 mA

Min

720

mA

730

mA

680

mA

690

mA

515

mA

525

mA

485

mA

495

mA

420

mA

430

mA

355

mA

365

mA

315

mA

325

mA

Operating Current

(x18): DDR

DD

OUT

I

DD

Cycle Time ≥ t

KHKH

V

= Max, I

= 0 mA

Min

720

mA

730

mA

680

mA

690

mA

515

mA

525

mA

485

mA

495

mA

420

mA

430

mA

355

mA

365

mA

315

mA

325

mA

Operating Current

(x9): DDR

DD

OUT

I

DD

Cycle Time ≥ t

KHKH

V

= Max, I

= 0 mA

Min

720

mA

730

mA

680

mA

690

mA

515

mA

525

mA

485

mA

495

mA

420

mA

430

mA

355

mA

365

mA

315

mA

325

mA

Operating Current

(x8): DDR

DD

OUT

I

DD

Cycle Time ≥ t

KHKH

Device deselected,

OUT

200

mA

210

mA

195

mA

205

mA

170

mA

180

mA

165

mA

175

mA

155

mA

165

mA

140

mA

150

mA

135

mA

145

mA

Standby Current

(NOP): DDR

I

= 0 mA, f = Max,

I

2, 4

SB1

All Inputs ≤ 0.2 V or

≥ V – 0.2 V

DD

Notes:

1.

2.

Power measured with output pins floating.

Minimum cycle, I_OUT= 0 mA

3.

4.

Operating current is calculated with 50% read cycles and 50% write cycles.

Standby Current is only after all pending read and write burst operations are completed.

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GS8182S08/09/18/36BD-400/375/333/300/250/200/167

AC Electrical Characteristics

-400

-375

-333

-300

-250

-200

-167

Parameter

Symbol

Min Max Min Max Min Max Min Max Min Max Min Max Min Max

Clock

t_KHKH

t_CHCH

K, K Clock Cycle Time

C, C Clock Cycle Time

2.5

—

8.4

0.2

—

2.67

—

8.4

0.2

—

3.0

—

8.4

0.2

—

3.3

—

8.4

0.2

—

4.0

—

8.4

0.2

—

5.0

—

8.4

0.2

—

6.0

—

8.4

0.2

—

ns

t_KCVar

tTKC Variable

6

t_KHKL

t_CHCL

K, K Clock High Pulse Width

C, C Clock High Pulse Width

1.0

1.13

1.2

1.32

1.6

2.0

2.4

t_KLKH

t_CLCH

K, K Clock Low Pulse Width

C, C Clock Low Pulse Width

1.0

—

1.13

—

1.2

—

1.32

1.49

—

1.6

1.8

—

2.0

2.2

—

2.4

2.7

—

ns

t_KHKH

t_CHCH

K to K High

C to C High

1.35

t_KHKH

t_CHCH

K to K High

C to C High

ns

t_KHCH

t_KCLock

t_KCReset

K, K Clock High to C, C Clock High

DLL Lock Time

0

1.1

—

0

1.2

—

0

1.3

—

0

1.45

—

0

1.8

—

0

2.3

—

0

2.8

—

1024

30

1024

30

1024

30

1024

30

1024

30

1024

30

1024

30

6

K Static to DLL reset

—

ns

Output Times

t_KHQV

t_CHQV

K, K Clock High to Data Output Valid

C, C Clock High to Data Output Valid

—

0.45

—

0.45

—

0.45

—

0.45

—

0.45

—

0.45

—

–0.5

—

0.5

—

ns

4

t_KHQX

t_CHQX

K, K Clock High to Data Output Hold

C, C Clock High to Data Output Hold

–0.45

—

–0.45

—

–0.45

—

–0.45

—

–0.45

—

–0.45

—

t_KHCQV

t_CHCQV

K, K Clock High to Echo Clock Valid

C, C Clock High to Echo Clock Valid

0.45

—

0.45

—

0.45

—

0.45

—

0.45

—

0.45

—

0.5

—

t_KHCQX

t_CHCQX

K, K Clock High to Echo Clock Hold

C, C Clock High to Echo Clock Hold

–0.45

–0.5

t_CQHQV

t_CQHQX

t_CQHCQH

t_KHQZ

t_CHQZ

t_KHQX1

t_CHQX1

CQ, CQ High Output Valid

CQ, CQ High Output Hold

—

0.25

—

0.25

—

0.25

—

0.27

—

0.30

—

0.35

—

0.40 ns

8

–0.25

–0.27

–0.30

–0.35

–0.40

—

ns

CQ Phase Distortion

0.9

—

0.45

—

1.0

—

0.45

—

1.10

—

0.45

—

1.24

—

0.45

—

1.55

—

0.45

—

1.95

—

0.45

—

2.45

—

K Clock High to Data Output High-Z

C Clock High to Data Output High-Z

0.5

—

ns

4

K Clock High to Data Output Low-Z

C Clock High to Data Output Low-Z

–0.45

–0.5

Setup Times

t_AVKH

t_IVKH

Address Input Setup Time

0.4

—

0.4

—

0.4

—

0.4

—

0.5

—

0.6

—

0.7

—

ns

1

2

Control Input Setup Time (RW, LD)

Control Input Setup Time (BWX,

NWX)

t_IVKH

0.28

—

0.28

—

0.28

—

0.3

—

0.35

—

0.4

—

0.5

—

ns

3

t_DVKH

Data Input Setup Time

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GS8182S08/09/18/36BD-400/375/333/300/250/200/167

AC Electrical Characteristics (Continued)

-400

-375

-333

-300

-250

-200

-167

Parameter

Symbol

Min Max Min Max Min Max Min Max Min Max Min Max Min Max

Hold Times

t_KHAX

t_KHIX

Address Input Hold Time

0.4

—

0.4

—

0.4

—

0.4

—

0.5

—

0.6

—

0.7

—

ns

1

2

Control Input Hold Time (RW, LD)

Control Input Hold Time (BWX,

NWX)

t_IVKH

0.28

—

0.28

—

0.28

—

0.3

—

0.35

—

0.4

—

0.5

—

ns

3

t_KHDX

Data Input Hold Time

Notes:

1.

2.

3.

4.

5.

All Address inputs must meet the specified setup and hold times for all latching clock edges.

Control singles are RW, LD.

Control singles BW0, BW1, (NW0, NW1 for x8) and BW2, BW3 for x36.

If C, C are tied high, K, K become the references for C, C timing parameters.

To avoid bus contention, at a given voltage and temperature tCHQX1 is bigger than tCHQZ. The specs as shown do not imply bus contention because tCHQX1 is a MIN parameter

that is worst case at totally different test conditions (0°C, 1.9 V) than tCHQZ, which is a MAX parameter (worst case at 70°C, 1.7 V). It is not possible for two SRAMs on the same

board to be at such different voltages and temperatures.

6.

7.

Clock phase jitter is the variance from clock rising edge to the next expected clock rising edge.

V_DDslew rate must be less than 0.1 V DC per 50 ns for DLL lock retention. DLL lock time begins once V_DDand input clock are stable.

8.

Echo clock is very tightly controlled to data valid/data hold. By design, there is a ±0.1 ns variation from echo clock to data. The datasheet parameters reflect tester guard bands

and test setup variations.

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GS8182S08/09/18/36BD-400/375/333/300/250/200/167

K Controlled Read-First Timing Diagram

Read A

KHKL

Write B

Read C

Read E

Deselect

KHKH

KLKH

K

KH#KH

AVKH

KHAX

Address

LD

A

B

C

D

E

IVKH

KHIX

R/W

IVKH

KHIX

B+1

BWx

B

DVKH

KHDX

B+1

D

KHQX1

A

KHQZ

KHQV

C+1

KHQX

D+1

Q

A+1

C

D

CQ

KHCQV

KHCQX

CQHQV

CQHQX

CQ

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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

GS8182S08/09/18/36BD-400/375/333/300/250/200/167

K Controlled Write-First Timing Diagram

NOP

Write A

Read B

Read C

Write D

Write E

Deselect

KHKL

KHKH

KLKH

K

KH#KH

AVKH

KHAX

Address

LD

A

B

C

D

E

IVKH

KHIX

IVKH

KHIX

R/W

KHIX

IVKH

BWx

A

A+1

D

D+1

E

E+1

KHDX

DVKH

D

A+1

E

KHQV

KHQX1

KHQX

C

KHQZ

Q

B

B+1

C+1

KHCQX

KHCQV

CQ

KHCQX

KHCQV

CQHQX

CQHQV

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C Controlled Read-First Timing Diagram

Read A

KHKL

Write B

Read C

Read D

Deselect

KHKH

KLKH

K

KHKH#

AVKH

KHAX

Address

A

B

C

D

IVKH

KHIX

LD

IVKH

KHIX

R/W

BWx

D

KHIX

IVKH

B

B+1

KHDX

DVKH

B+1

CLCH

KHCH

CHCL

CHCH

C

CHCH#

CHQX1

A

CHQZ

CHQV

CHQX

D

Q

A+1

C

C+1

D+1

CQ

CHCQX

CHCQV

CQHCV

CQHQX

CQ

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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

GS8182S08/09/18/36BD-400/375/333/300/250/200/167

C Controlled Write-First Timing Diagram

NOP

Write A

Read B

Write C

Write D

Read E

Deselect

KHKL

KHKH

KLKH

K

KH#KH

KHAX

AVKH

Addr

LD

A

B

C

D

E

IVKH

KHIX

IVKH

KHIX

R/W

KHIX

IVKH

BWx

A

A+1

C

C+1

D

D+1

KHDX

KLKH

DVKH

D

KHKL

KHKH

C

KH#KH

CHQX1

B

CHQZ

CHQX

CHQV

B+1

Q

CQ

CQHQV

CQHQX

CQ

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GS8182S08/09/18/36BD-400/375/333/300/250/200/167

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

.

DD

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 Name

I/O

Description

Clocks all TAP events. All inputs are captured on the rising edge of 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 TCK. This 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 the TAP Controller State Diagram). An undriven TDI pin will produce

the same result as a logic one input level.

Output that is active depending 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 or TAP 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 and pushes 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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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 Register

TDI

TDO

ID Code Register

31 30 29

2 1

0

·

· · ·

Control Signals

Test Access Port (TAP) Controller

TMS

TCK

Identification (ID) Register

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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GS8182S08/09/18/36BD-400/375/333/300/250/200/167

ID Register Contents

GSI Technology

JEDEC Vendor

ID Code

See BSDL Model

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 0 1 1 0 0 1

0

1

X

0

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 least significant 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 the 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.

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GS8182S08/09/18/36BD-400/375/333/300/250/200/167

JTAG Tap Controller State Diagram

Test Logic Reset

1

0

1

Run Test Idle

Select DR

Select IR

0

1

Capture DR

Capture IR

0

Shift DR

Shift IR

0

1

Exit1 DR

Exit1 IR

0

Pause DR

Pause IR

0

1

Exit2 DR

Exit2 IR

1

Update DR

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 moved 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 the Boundary 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.

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GS8182S08/09/18/36BD-400/375/333/300/250/200/167

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 is the 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 forced 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.

JTAG TAP Instruction Set Summary

Instruction

EXTEST

Code

000

Description

Notes

1

Places the Boundary Scan Register between TDI and TDO.

Preloads ID Register and places it between TDI and TDO.

IDCODE

001

1, 2

Captures I/O ring contents. Places the Boundary Scan Register between TDI and TDO.

Forces all RAM output drivers to High-Z.

SAMPLE-Z

010

1

GSI

011

100

101

110

111

GSI private instruction.

Captures I/O ring contents. Places the Boundary Scan Register between TDI and TDO.

GSI private instruction.

1

SAMPLE/PRELOAD

GSI

GSI private instruction.

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.

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GS8182S08/09/18/36BD-400/375/333/300/250/200/167

JTAG Port Recommended Operating Conditions and DC Characteristics

Parameter

Symbol

Min.

–0.3

Max.

Unit Notes

V

0.3 * V

Test Port Input Low Voltage

V

1

ILJ

DD

V

0.7 * V

V

+0.3

DD

Test Port Input High Voltage

IHJ

DD

I

TMS, TCK and TDI Input Leakage Current

TDO Output Leakage Current

Test Port Output High Voltage

Test Port Output Low Voltage

Test Port Output CMOS High

Test Port Output CMOS Low

–300

–1

1

uA

V

2

INHJ

I

100

1

3

INLJ

I

–1

4

OLJ

V

– 0.2

DD

—

0.2

—

0.1

5, 6

5, 7

5, 8

5, 9

OHJ

V

—

V

OLJ

V

– 0.1

DD

V

OHJC

V

—

V

OLJC

Notes:

1. Input Under/overshoot voltage must be –1 V < Vi < V

+1 V not to exceed 2.9 V maximum, with a pulse width not to exceed 20% tTKC.

DDn

2.

V

≤ V ≤ V

ILJ

IN

DDn

ILJn

3. 0 V ≤ V ≤ V

IN

4. Output Disable, V

= 0 to V

DDn

OUT

5. The TDO output driver is served by the V supply.

DD

6.

7.

8.

9.

I

= –2 mA

OHJ

= + 2 mA

OLJ

= –100 uA

= +100 uA

OHJC

OLJC

JTAG Port AC Test Conditions

Parameter

Conditions

JTAG Port AC Test Load

TDO

V

– 0.2 V

Input high level

Input low level

DD

0.2 V

1 V/ns

*

50Ω

30pF

Input slew rate

V

/2

DD

V

/2

Input reference level

DD

* Distributed Test Jig Capacitance

/2

Output reference level

DD

Notes:

1. Include scope and jig capacitance.

2. Test conditions as shown unless otherwise noted.

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GS8182S08/09/18/36BD-400/375/333/300/250/200/167

JTAG Port Timing Diagram

tTKC

tTKH

tTKL

TCK

TDI

tTH

tTS

TMS

TDO

tTKQ

tTH

tTS

Parallel SRAM input

JTAG Port AC Electrical Characteristics

Parameter

Symbol

tTKC

tTKQ

tTKH

tTKL

tTS

Min

Max

—

Unit

ns

TCK Cycle Time

50

—

TCK Low to TDO Valid

TCK High Pulse Width

TCK Low Pulse Width

TDI & TMS Set Up Time

TDI & TMS Hold Time

20

—

ns

20

10

ns

—

ns

—

ns

tTH

—

ns

JTAG Port AC Electrical Characteristics

Parameter

Symbol

t_CHCH

t_CHCL

t_CLCH

t_MVCH

t_CHMX

t_DVCH

t_CHDX

t_SVCH

t_CHSX

t_CLQV

Min.

50

20

5

Max

—

Unit

ns

TCK Cycle Time

TCK High Pulse Width

TCK Low Pulse Width

TMS Input Setup Time

TMS Input Hold Time

TDI Input Setup Time

TDI Input Hold Time

SRAM Input Setup Time

SRAM Input Hold Time

Clock Low to Output Valid

—

5

—

5

—

5

—

5

—

5

—

0

10

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GS8182S08/09/18/36BD-400/375/333/300/250/200/167

Package Dimensions—165-Bump FPBGA (Package D)

A1 CORNER

TOP VIEW

BOTTOM VIEW

A1 CORNER

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: 1.03c 11/2011

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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

GS8182S08/09/18/36BD-400/375/333/300/250/200/167

Ordering Information—GSI SigmaSIO DDR-II SRAM

2

Org

Part Number1

Type

Package

Speed (MHz)

T

A

2M x 8

2M x 9

1M x 18

GS8182S08BD-400

GS8182S08BD-375

GS8182S08BD-333

GS8182S08BD-300

GS8182S08BD-250

GS8182S08BD-200

GS8182S08BD-167

GS8182S08BD-400I

GS8182S08BD-375I

GS8182S08BD-333I

GS8182S08BD-300I

GS8182S08BD-250I

GS8182S08BD-200I

GS8182S08BD-167I

GS8182S09BD-400

GS8182S09BD-375

GS8182S09BD-333

GS8182S09BD-300

GS8182S09BD-250

GS8182S09BD-200

GS8182S09BD-167

GS8182S09BD-400I

GS8182S09BD-375I

GS8182S09BD-333I

GS8182S09BD-300I

GS8182S09BD-250I

GS8182S09BD-200I

GS8182S09BD-167I

GS8182S18BD-400

GS8182S18BD-375

GS8182S18BD-333

GS8182S18BD-300

SigmaSIO DDR-II SRAM

165-bump BGA

400

375

333

300

250

200

167

400

375

333

300

250

200

167

400

375

333

300

250

200

167

400

375

333

300

250

200

167

400

375

333

300

C

I

C

I

C

Notes:

1. For Tape and Reel add the character “T” to the end of the part number. Example: GS8182S36BD-300T.

2. C = Commercial Temperature Range. I = Industrial Temperature Range.

Rev: 1.03c 11/2011

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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

GS8182S08/09/18/36BD-400/375/333/300/250/200/167

Ordering Information—GSI SigmaSIO DDR-II SRAM

2

Org

Part Number1

Type

Package

Speed (MHz)

T

A

1M x 18

512K x 36

2M x 8

GS8182S18BD-250

GS8182S18BD-200

GS8182S18BD-167

GS8182S18BD-400I

GS8182S18BD-375I

GS8182S18BD-333I

GS8182S18BD-300I

GS8182S18BD-250I

GS8182S18BD-200I

GS8182S18BD-167I

GS8182S36BD-400

GS8182S36BD-375

GS8182S36BD-333

GS8182S36BD-300

GS8182S36BD-250

GS8182S36BD-200

GS8182S36BD-167

GS8182S36BD-400I

GS8182S36BD-375I

GS8182S36BD-333I

GS8182S36BD-300I

GS8182S36BD-250I

GS8182S36BD-200I

GS8182S36BD-167I

GS8182S08BGD-400

GS8182S08BGD-375

GS8182S08BGD-333

GS8182S08BGD-300

GS8182S08BGD-250

GS8182S08BGD-200

GS8182S08BGD-167

GS8182S08BGD-400I

GS8182S08BGD-375I

SigmaSIO DDR-II SRAM

165-bump BGA

250

200

167

400

375

333

300

250

200

167

400

375

333

300

250

200

167

400

375

333

300

250

200

167

400

375

333

300

250

200

167

400

375

C

I

165-bump BGA

I

165-bump BGA

I

165-bump BGA

I

165-bump BGA

I

165-bump BGA

I

165-bump BGA

I

165-bump BGA

C

I

165-bump BGA

I

165-bump BGA

I

165-bump BGA

I

165-bump BGA

I

165-bump BGA

I

165-bump BGA

I

RoHS-compliant 165-bump BGA

C

I

2M x 8

I

Notes:

1. For Tape and Reel add the character “T” to the end of the part number. Example: GS8182S36BD-300T.

2. C = Commercial Temperature Range. I = Industrial Temperature Range.

Rev: 1.03c 11/2011

33/36

Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

GS8182S08/09/18/36BD-400/375/333/300/250/200/167

Ordering Information—GSI SigmaSIO DDR-II SRAM

2

Org

Part Number1

Type

Package

Speed (MHz)

T

A

2M x 8

2M x 9

1M x 18

GS8182S08BGD-333I

GS8182S08BGD-300I

GS8182S08BGD-250I

GS8182S08BGD-200I

GS8182S08BGD-167I

GS8182S09BGD-400

GS8182S09BGD-375

GS8182S09BGD-333

GS8182S09BGD-300

GS8182S09BGD-250

GS8182S09BGD-200

GS8182S09BGD-167

GS8182S09BGD-400I

GS8182S09BGD-375I

GS8182S09BGD-333I

GS8182S09BGD-300I

GS8182S09BGD-250I

GS8182S09BGD-200I

GS8182S09BGD-167I

GS8182S18BGD-400

GS8182S18BGD-375

GS8182S18BGD-333

GS8182S18BGD-300

GS8182S18BGD-250

GS8182S18BGD-200

GS8182S18BGD-167

GS8182S18BGD-400I

GS8182S18BGD-375I

GS8182S18BGD-333I

GS8182S18BGD-300I

GS8182S18BGD-250I

GS8182S18BGD-200I

GS8182S18BGD-167I

SigmaSIO DDR-II SRAM

RoHS-compliant 165-bump BGA

333

300

250

200

167

400

375

333

300

250

200

167

400

375

333

300

250

200

167

400

375

333

300

250

200

167

400

375

333

300

250

200

167

I

C

I

C

I

Notes:

1. For Tape and Reel add the character “T” to the end of the part number. Example: GS8182S36BD-300T.

2. C = Commercial Temperature Range. I = Industrial Temperature Range.

Rev: 1.03c 11/2011

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Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

GS8182S08/09/18/36BD-400/375/333/300/250/200/167

Ordering Information—GSI SigmaSIO DDR-II SRAM

2

Org

Part Number1

Type

Package

Speed (MHz)

T

A

512K x 36

Notes:

GS8182S36BGD-400

GS8182S36BGD-375

GS8182S36BGD-333

GS8182S36BGD-300

GS8182S36BGD-250

GS8182S36BGD-200

GS8182S36BGD-167

GS8182S36BGD-400I

GS8182S36BGD-375I

GS8182S36BGD-333I

GS8182S36BGD-300I

GS8182S36BGD-250I

GS8182S36BGD-200I

GS8182S36BGD-167I

SigmaSIO DDR-II SRAM

RoHS-compliant 165-bump BGA

400

375

333

300

250

200

167

400

375

333

300

250

200

167

C

I

1. For Tape and Reel add the character “T” to the end of the part number. Example: GS8182S36BD-300T.

2. C = Commercial Temperature Range. I = Industrial Temperature Range.

Rev: 1.03c 11/2011

35/36

Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

GS8182S08/09/18/36BD-400/375/333/300/250/200/167

SigmaSIO DDR-II Revision History

File Name

Format/Content

Description of changes

8182SxxB_r1

Creation of datasheet

• Addition of x36

• Addition of Operating Currents

8182SxxB_r1_02

8182SxxB_r1_03

Content

• Removed “Preliminary” banner to reflect MP status

• (Rev1.03a:Revised Example Four Bank Depth Expansion Sche-

matic, Updated JTAG Port AC Test Conditions, Updated 165 BGA

Package Drawing)

• (Rev1.03b: removed CQ reference from SAMPLE-Z section in

JTAG Tap Instruction Set Summary)

• (Rev1.03c: Editorial updates)

Rev: 1.03c 11/2011

36/36

Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.


型号：	GS8182S08
厂家：	GSI TECHNOLOGY
描述：	18Mb Burst of 2 SigmaSIO DDR-IITM SRAM 双倍数据速率静态存储器
文件：	总36页 (文件大小：764K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

GS8182S08 [GSI]

相关型号：

GS8182S08BD-167

GS8182S08BD-200IT

GS8182S08BD-300

GS8182S08BD-300T

GS8182S08BD-333T

GS8182S08BD-375IT

GS8182S08BD-400IT

GS8182S08BD-400T

GS8182S08BGD-167

GS8182S08BGD-167I

GS8182S08BGD-167IT

GS8182S08BGD-167T