Datasheet > GS81284Z18GB-250

GS81284Z18GB-250

更新时间： 2024-10-03 14:57:11

品牌	Logo	应用领域
GSI		/
页数	文件大小	规格书
29页	644K
描述
119 BGA

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数据手册

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GS81284Z18GB-250 数据手册

GS81284Z18/36B-250/200/167

119-Bump BGA

Commercial Temp

Industrial Temp

250 MHz–167 MHz

144Mb Pipelined and Flow Through

Synchronous NBT SRAM

2.5 V or 3.3 V V

2.5 V or 3.3 V I/O

Features

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.

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

Read-Write-Read bus utilization; fully pin-compatible with

both pipelined and flow through NtRAM™, NoBL™ and

ZBT™ SRAMs

• 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

• ZQ mode pin for user-selectable high/low output drive

• IEEE 1149.1 JTAG-compatible Boundary Scan

• LBO pin for Linear or Interleave Burst mode

• Pin-compatible with 8Mb, 16Mb, 36Mb and 72Mb devices

• Byte write operation (9-bit Bytes)

• 3 chip enable signals for easy depth expansion

• ZZ Pin for automatic power-down

• JEDEC-standard 119-bump BGA package

• RoHS-compliant 119-bump BGA packages available

The GS81284Z18/36 may be configured by the user to operate

in Pipeline or Flow Through mode. Operating as a pipelined

synchronous device, 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.

Functional Description

The GS81284Z18/36 is a 144Mbit 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.

The GS81284Z18/36 is implemented with GSI's high

performance CMOS technology and is available in a JEDEC-

standard 119-bump BGA package.

Parameter Synopsis

-250

-200

-167

Unit

t_KQ(x18/x36)

tCycle

2.5

4.0

3.0

5.0

3.4

6.0

Pipeline

3-1-1-1

Curr (x18)

Curr (x36)

480

550

420

480

385

430

t_KQ

6.5

7.5

8.0

tCycle

Flow Through

2-1-1-1

Curr (x18)

Curr (x36)

370

405

340

370

330

360

Rev: 1.02 7/2010

1/29

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

12 3 4 5 6 7...29

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与GS81284Z18GB-250相关器件

型号	品牌	获取价格	描述	数据表
GS81284Z18GB-250I	GSI	获取价格	119 BGA
GS81284Z18GB-300	GSI	获取价格	ZBT SRAM, 8MX18, 5.5ns, CMOS, PBGA119, 14 X 22 MM, 1.27 MM PITCH, ROHS COMPLIANT, FPBGA-11
GS81284Z18GB-300I	GSI	获取价格	ZBT SRAM, 8MX18, 5.5ns, CMOS, PBGA119, 14 X 22 MM, 1.27 MM PITCH, ROHS COMPLIANT, FPBGA-11
GS81284Z18GB-300IT	GSI	获取价格	ZBT SRAM, 8MX18, 5.5ns, CMOS, PBGA119, 14 X 22 MM, 1.27 MM PITCH, ROHS COMPLIANT, FPBGA-11
GS81284Z18GB-300T	GSI	获取价格	ZBT SRAM, 8MX18, 5.5ns, CMOS, PBGA119, 14 X 22 MM, 1.27 MM PITCH, ROHS COMPLIANT, FPBGA-11
GS81284Z36B-167	GSI	获取价格	119 BGA
GS81284Z36B-167I	GSI	获取价格	119 BGA
GS81284Z36B-167IV	GSI	获取价格	ZBT SRAM, 4MX36, 8ns, CMOS, PBGA119, 14 X 22 MM, 1.27 MM PITCH, FPBGA-119
GS81284Z36B-167V	GSI	获取价格	144Mb Pipelined and Flow Through Synchronous NBT SRAM
GS81284Z36B-167VI	GSI	获取价格	ZBT SRAM, 4MX36, 8ns, CMOS, PBGA119, 14 X 22 MM, 1.27 MM PITCH, FPBGA-119

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