GS8640Z18GT-200 GSI TECHNOLOGY, GS8640Z18GT-200 Datasheet

GS8640Z18GT-200

Manufacturer Part Number

GS8640Z18GT-200

Description

Manufacturer

GSI TECHNOLOGY

Datasheet

1.GS8640Z18GT-200.pdf (24 pages)

Specifications of GS8640Z18GT-200

Density

72Mb

Access Time (max)

7.5ns

Sync/async

Synchronous

Architecture

SDR

Clock Freq (max)

133.3MHz

Operating Supply Voltage (typ)

2.5/3.3V

Address Bus

22b

Package Type

TQFP

Operating Temp Range

0C to 70C

Number Of Ports

Supply Current

205mA

Operating Supply Voltage (min)

2.3/3V

Operating Supply Voltage (max)

2.7/3.6V

Operating Temperature Classification

Commercial

Mounting

Surface Mount

Pin Count

100

Word Size

18b

Number Of Words

Lead Free Status / RoHS Status

Compliant

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Packages listed with the additional “G” designator are 6/6 RoHS compliant.

100-Pin TQFP

Commercial Temp

Industrial Temp

Features

• NBT (No Bus Turn Around) functionality allows zero wait

• 2.5 V or 3.3 V +10%/–10% core power supply

• 2.5 V or 3.3 V I/O supply

• User-configurable Pipeline and Flow Through mode

• LBO pin for Linear or Interleave Burst mode

• Pin compatible with 4Mb, 9Mb, 18Mb and 36Mb devices

• Byte write operation (9-bit Bytes)

• 3 chip enable signals for easy depth expansion

• ZZ Pin for automatic power-down

• JEDEC-standard 100-lead TQFP package

• RoHS-compliant 100-lead TQFP package available

Functional Description

The GS8640Z18/36T is a 72Mbit Synchronous Static SRAM.

GSI's NBT SRAMs, like ZBT, NtRAM, NoBL or other

pipelined read/double late write or flow through read/single

late write SRAMs, allow utilization of all available bus

bandwidth by eliminating the need to insert deselect cycles

when the device is switched from read to write cycles.

Rev: 1.03b 2/2009

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

read-write-read bus utilization; Fully pin-compatible with

both pipelined and flow through NtRAM™, NoBL™ and

ZBT™ SRAMs

Through

Pipeline

3-1-1-1

2-1-1-1

Flow

72Mb Pipelined and Flow Through

Synchronous NBT SRAM

Curr

tCycle

(x32/x36)

(x18)

Parameter Synopsis

1/24

-300

400

480

285

330

2.3

3.3

5.5

Because it is a synchronous device, address, data inputs, and

read/ write control inputs are captured on the rising edge of the

input clock. Burst order control (LBO) must be tied to a power

rail for proper operation. Asynchronous inputs include the

Sleep mode enable (ZZ) and Output Enable. Output Enable can

be used to override the synchronous control of the output

drivers and turn the RAM's output drivers off at any time.

Write cycles are internally self-timed and initiated by the rising

edge of the clock input. This feature eliminates complex off-

chip write pulse generation required by asynchronous SRAMs

and simplifies input signal timing.

The GS8640Z18/36T may be configured by the user to operate

in Pipeline or Flow Through mode. Operating as a pipelined

synchronous device, meaning that in addition to the rising edge

triggered registers that capture input signals, the device

incorporates a rising-edge-triggered output register. For read

cycles, pipelined SRAM output data is temporarily stored by

the edge triggered output register during the access cycle and

then released to the output drivers at the next rising edge of

clock.

The GS8640Z18/36T is implemented with GSI's high

performance CMOS technology and is available in a JEDEC-

standard 100-pin TQFP package.

-250

340

410

245

280

2.5

4.0

6.5

-200

290

350

220

250

3.0

5.0

7.5

GS8640Z18/36T-300/250/200/167

-167

260

305

210

240

3.4

6.0

8.0

Unit

300 MHz–167 MHz

2.5 V or 3.3 V V

2.5 V or 3.3 V I/O

Related parts for GS8640Z18GT-200

GS8640Z18GT-200 Summary of contents

Page 1

... KQ 5.5 6.5 7.5 tCycle Curr 285 245 220 (x18) Curr 330 280 250 (x32/x36) 1/24 GS8640Z18/36T-300/250/200/167 300 MHz–167 MHz 3.3 V I/O -167 Unit 3.4 ns 6.0 ns 260 mA 305 mA 8.0 ns 8.0 ns 210 mA 240 mA © 2004, GSI Technology DD ...

Page 2

... Pins marked with NC can be tied to either V Rev: 1.03b 2/2009 Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. GS8640Z18T Pinout Top View These pins can also be left floating 2/24 GS8640Z18/36T-300/250/200/167 DDQ DQP DDQ DDQ DDQ © 2004, GSI Technology ...

Page 3

... Pins marked with NC can be tied to either V Rev: 1.03b 2/2009 Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. GS8640Z36T Pinout Top View These pins can also be left floating 3/24 GS8640Z18/36T-300/250/200/167 DQP DDQ DDQ DDQ DDQ DQP 51 A © 2004, GSI Technology ...

Page 4

... Byte D Data Input and Output pins Power down control; active high Pipeline/Flow Through Mode Control; active low Linear Burst Order; active low Core power supply Ground Output driver power supply No Connect 4/24 ; active low A9 ; active low B9 ; active low C9 ; active low D9 © 2004, GSI Technology ...

Page 5

... GS8640Z18/36 NBT SRAM Functional Block Diagram Rev: 1.03b 2/2009 Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. GS8640Z18/36T-300/250/200/167 Amps Sense Drivers Write 5/24 © 2004, GSI Technology ...

Page 6

... Rev: 1.03b 2/2009 Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com & determine which bytes will be written. All or none may be activated. A write C, D 6/24 GS8640Z18/36T-300/250/200/167 , E and E ). Deassertion of any one of the Enable © 2004, GSI Technology ...

Page 7

... Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. External L Next L External L Next L External L None L Next L Next L None L None L None L None L None Current L 7/24 GS8640Z18/36T-300/250/200/167 High High High High-Z 1,2,3, High High High High High © 2004, GSI Technology Notes 1,10 2 1,2, 1,3, ...

Page 8

... and D represent input command codes ,as indicated in the Synchronous Truth Table. n+1 n+2 ƒ ƒ Next State Pipeline and Flow Through Read/Write Control State Diagram 8/24 GS8640Z18/36T-300/250/200/167 New Write Burst Write B D n+3 ƒ ƒ © 2004, GSI Technology ...

Page 9

... and D represent input command codes as indicated in the Truth Tables. Next State (n+2) n n+1 n+2 ƒ ƒ Intermediate Current State State Pipeline Mode Data I/O State Diagram 9/24 GS8640Z18/36T-300/250/200/167 Intermediate R B Data Out W (Q Valid) D n+3 ƒ ƒ Next State © 2004, GSI Technology ...

Page 10

... Pipeline and Flow Through Read Write Control State Diagram 10/24 GS8640Z18/36T-300/250/200/167 R B Data Out W (Q Valid) D Notes 1. The Hold command (CKE Low) is not shown because it prevents any state change and D represent input command codes as indicated in the Truth Tables. n+2 n+3 ƒ ƒ © 2004, GSI Technology ...

Page 11

... Note: The burst counter wraps to initial state on the 5th clock. 11/24 GS8640Z18/36T-300/250/200/167 Function Linear Burst Interleaved Burst Flow Through Pipeline Active Standby A[1:0] A[1:0] A[1:0] A[1: BPR 1999.05.18 © 2004, GSI Technology ...

Page 12

... Rev: 1.03b 2/2009 Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Sleep Mode Timing Diagram tKH tKH tKL tKL tZZS tZZH DD 12/24 GS8640Z18/36T-300/250/200/167 2. The duration of SB tZZR pipelined parts and V on flow DDQ SS © 2004, GSI Technology ...

Page 13

... GS8640Z18/36T-300/250/200/167 Value –0.5 to 4.6 –0.5 to 4.6 –0 +0.5 ( 4.6 V max.) DDQ –0 +0.5 ( 4.6 V max.) DD +/–20 +/–20 1.5 –55 to 125 –55 to 125 Typ. Max. Unit 3.3 3.6 V 2.5 2.7 V 3.3 3.6 V 2.5 2.7 V © 2004, GSI Technology Unit Notes ...

Page 14

... V not to exceed 4.6 V maximum, with a pulse width not to exceed 20% tKC. DDn 14/24 Max. Unit Notes 0.3 V 1,3 DDQ 0.8 V 1,3 Max. Unit Notes 0.3 0.3 V 1,3 DDQ 0.3*V V 1,3 DD Max. Unit Notes   © 2004, GSI Technology ...

Page 15

... Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Overshoot Measurement and Timing Symbol Test conditions I/O OUT Conditions V – DDQ V /2 DDQ Fig. 1 Output Load 1 50 30pF V DDQ/2 * Distributed Test Jig Capacitance 15/24 GS8640Z18/36T-300/250/200/167 20% tKC DD IL Typ. Max. Unit © 2004, GSI Technology ...

Page 16

... V  Output Disable OUT I Output Disable OUT –8 mA, V OH2 OH DDQ –8 mA, V OH3 OH DDQ 16/24 GS8640Z18/36T-300/250/200/167 Min –  V – V –1 uA 100 – – 2.375 V 1 3.135 V 2.4 V — © 2004, GSI Technology Max — — 0.4 V ...

Page 17

... GSI Technology –40 Unit to 290 mA 35 240 mA 20 260 mA 20 215 mA 15 120 mA 120 mA 140 mA 135 mA ...

Page 18

... GSI Technology Unit ...

Page 19

... Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Pipeline Mode Timing (NBT) Suspend Read C Write D writeno-op tKH tKH tKC tKC tKL tKL D(A) Q(B) Q(C) 19/24 GS8640Z18/36T-300/250/200/167 Read E Deselect E tLZ tHZ tKQ tKQX D(D) Q(E) © 2004, GSI Technology ...

Page 20

... Flow Through Mode Timing (NBT) Write B+1 Read C Cont tKL tKL tKH tKH tKC tKC C D tKQ tLZ D(B) D(B+1) Q(C) tOHZ 20/24 GS8640Z18/36T-300/250/200/167 Read D Write E Read F Write tKQ tKQX tHZ tLZ Q(D) D(E) Q(F) tOLZ tOE © 2004, GSI Technology tKQX D(G) ...

Page 21

... Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. TQFP Package Drawing (Package T)  0.10 0.15 1.40 1.45 0.30 0.40 — 0.20 e 22.0 22.1 20.0 20.1 16.0 16.1 b 14.0 14.1 0.65 — 0.60 0.75 1.00 — 0.10 7 — 21/24 GS8640Z18/36T-300/250/200/167 E1 E © 2004, GSI Technology ...

Page 22

... GS8640Z36T-250I GS8640Z36T-200I GS8640Z36T-167I GS8640Z18GT-300 GS8640Z18GT-250 GS8640Z18GT-200 GS8640Z18GT-167 GS8640Z36GT-300 GS8640Z36GT-250 Notes: 1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number. Example: GS8640Z36T-167IT. 2. Packages listed with the additional “G” designator are 6/6 RoHS compliant. ...

Page 23

... Org Part Number GS8640Z36GT-200 GS8640Z36GT-167 GS8640Z18GT-300I GS8640Z18GT-250I GS8640Z18GT-200I GS8640Z18GT-167I GS8640Z36GT-300I GS8640Z36GT-250I GS8640Z36GT-200I GS8640Z36GT-167I Notes: 1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number. Example: GS8640Z36T-167IT. 2. Packages listed with the additional “G” designator are 6/6 RoHS compliant. ...

Page 24

... Added status to ordering information table (pg. 22, 23) • Added note to TQFP pinouts (pg • Changed Timing Diagrams (pg. 19,20) Content • Updated Synchronous Truth Table (pg. 7); Removed Status column Content from Ordering Information table; Removed “Preliminary” banner due to MP status 24/24 GS8640Z18/36T-300/250/200/167 © 2004, GSI Technology ...

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