參數(shù)資料
型號(hào)： GS8170S36
廠商： GSI TECHNOLOGY
英文描述： 16Mb（512K x 36Bit）Synchronous SRAM(16M位（512K x 36位）同步靜態(tài)RAM)
中文描述： 16Mb的（為512k × 36Bit）同步SRAM（1,600位（為512k × 36位）同步靜態(tài)內(nèi)存）
文件頁(yè)數(shù)： 1/38頁(yè)
文件大?。?/td> 934K
代理商： GS8170S36
Rev: 1.01 11/2000
Specifications cited are design targets and are subject to change without notice. For latest documentation contact your GSI representative.
1/38
2000, Giga Semiconductor, Inc.
A
Advanced Information
GS8170S18/36/72B-333/300/275/250
1M x 18, 512K x 36, 256K x 72
16Mb Synchronous SRAM
333 MHz
1.8 V V
DD
1.8 V and 1.5 V I/O
209-Bump BGA
Commercial Temp
Industrial Temp
Σ
RAM
Features
User-configurable Early, Late, and Double Late Write modes
User-configurable pipelined and flow through operation
Observes the Sigma RAM pinout standard
1.8 V +150/–100 mV core power supply
1.5 V or 1.8 V I/O supply
Dual Cycle Deselect in Pipeline mode
Burst Synchronous operation
Fully coherent read and write pipelines
Echo Clock outputs track data output drivers in Pipeline
mode
ZQ mode pin for user-selectable output drive strength
Byte write operation (9-bit bytes) in EW, LW, and DLW
modes
2 User programmable chip enable inputs for easy depth
expansion.
IEEE 1149.1 JTAG-compatible Boundary Scan
209-bump, 14 mm x 22 mm, 1 mm bump pitch BGA package
Pin compatible with future 32M, 64M, and 128M devices
Sigma RAM Family Overview
The GS8170S18/36/72B
Σ
RAMs are built in compliance with
the Sigma RAM pinout standard for synchronous SRAMs.
They are 18,874,368-bit (16Mb) SRAMs. These are the first in
a family of wide, very low voltage CMOS I/O SRAMs
designed to operate at the speeds needed to implement
economical high performance networking systems.
GSI's
Σ
RAMs are offered in a number of configurations that
emulate other synchronous SRAMs, such as Burst RAMs,
NBT RAMs, Late Write, or Double Data Rate (DDR) SRAMs.
The logical differences between the protocols employed by
these RAMs hinge mainly on various combinations of address
bursting, output data registering and write cueing.
Σ
RAMs
allow a user to implement the interface protocol best suited to
the task at hand.
Functional Description
Because a Sigma RAM is a synchronous device, address, data
Inputs, and read/write control inputs are captured on the rising
edge of the input clock. Output Enable is the only
asynchronous control input. 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.
A
Σ
RAM may be configured by the user to read in Pipeline or
Flow Through mode. In Pipeline mode, an ordinary single data
rate RAM incorporates a rising-edge-riggered output register.
For read cycles, a pipelined SRAM’s 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.
GS817x18/36/72B
Σ
RAMs are implemented with GSI's high
performance CMOS technology and are packaged in a 209-
bump BGA.
- 333
3.0 ns
1.5 ns
7 ns
5 ns
Pipeline mode
tKHKH
tKHQV
tKHKH
tKHQV
Flow Through mode
209-Bump, 14 mm x 22 mm BGA
1 mm Bump Pitch, 11 x 19 Bump Array
Bottom View
相關(guān)PDF資料
PDF描述
GS8170S18 16Mb（1M x 18Bit）Synchronous SRAM(16M位（1M x 18位）同步靜態(tài)RAM)
GS8170S72 16Mb（256K x 72Bit）Synchronous SRAM(16M位（256K x 72位）同步靜態(tài)RAM)
GS8180D09 2Mb x 9Bit Separate I/O Sigma DDR SRAM(2M x 9位獨(dú)立I/O接口雙數(shù)據(jù)速率讀和寫模式靜態(tài)ΣRAM)
GS8180D18 1Mb x 18Bit Separate I/O Sigma DDR SRAM(1M x 18位獨(dú)立I/O接口雙數(shù)據(jù)速率讀和寫模式靜態(tài)ΣRAM)
GS8180S36 512K x 36Bit Separate I/O Sigma DDR SRAM(512K x 36位獨(dú)立I/O接口雙數(shù)據(jù)速率讀和寫模式靜態(tài)ΣRAM)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
GS8171DW36AC-300I 制造商:GSI Technology 功能描述:SRAM SYNC QUAD 1.8V 18MBIT 512KX36 1.8NS 209FBGA - Trays
GS8171DW36AC-350 制造商:GSI Technology 功能描述:SRAM SYNC QUAD 1.8V 18MBIT 512KX36 1.7NS 209FBGA - Trays
GS8171DW36AC-350I 制造商:GSI Technology 功能描述:SRAM SYNC QUAD 1.8V 18MBIT 512KX36 1.7NS 209BGA - Trays
GS8171DW36AGC-250 制造商:GSI Technology 功能描述:SRAM SYNC QUAD 1.8V 18MBIT 512KX36 2.1NS 209FBGA - Trays
GS8171DW36AGC-300 制造商:GSI Technology 功能描述:SRAM SYNC QUAD 1.8V 18MBIT 512KX36 1.8NS 209FBGA - Trays
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