您的位置：维库电子市场网 > Datasheet > GS816118CD-250IT

GS816118CD-250IT Datasheet

  • GS816118CD-250IT

  • 1M x 18 and 512K x 36 18Mb Sync Burst SRAMs

  • 772.76KB

  • 29页

  • GSI

阅览下载 纠错 0

扫码查看芯片数据手册

上传产品规格书

PDF预览

Preliminary
GS816118/36CD-333/300/250
165-Bump BGA
Commercial Temp
Industrial Temp
Features
鈥?IEEE 1149.1 JTAG-compatible Boundary Scan
鈥?2.5 V or 3.3 V +10%/鈥?0% core power supply
鈥?2.5 V or 3.3 V I/O supply
鈥?LBO pin for Linear or Interleaved Burst mode
鈥?Internal input resistors on mode pins allow floating mode pins
鈥?Byte Write (BW) and/or Global Write (GW) operation
鈥?Internal self-timed write cycle
鈥?Automatic power-down for portable applications
鈥?JEDEC-standard 165-bump BGA package
1M x 18 and 512K x 36
18Mb Sync Burst SRAMs
333 MHz鈥?50 MHz
2.5 V or 3.3 V V
DD
2.5 V or 3.3 V I/O
Flow Through/Pipeline Reads
The function of the Data Output register can be controlled by the
user via the FT mode pin (Pin 14). Holding the FT mode pin low
places the RAM in Flow Through mode, causing output data to
bypass the Data Output Register. Holding FT high places the
RAM in Pipeline mode, activating the rising-edge-triggered Data
Output Register.
SCD Pipelined Reads
The GS816118/36CD is a 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.
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.
Core and Interface Voltages
The GS816118/36CD operates on a 1.8 V power supply. All input
are 1.8 V compatible. Separate output power (V
DDQ
) pins are used
to decouple output noise from the internal circuits and are 1.8 V
compatible.
Functional Description
Applications
The GS816118/36CD is an 18,874,368-bit 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.
Controls
Addresses, data I/Os, chip enable (E1), 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 internally and are controlled by
ADV. The burst address 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.
Parameter Synopsis
-333
Pipeline
3-1-1-1
t
KQ
tCycle
Curr
(x18)
Curr
(x32/x36)
t
KQ
tCycle
Curr
(x18)
Curr
(x32/x36)
2.5
3.0
375
435
4.5
4.5
280
335
-300
2.5
3.3
335
390
5.0
5.0
230
270
-250
2.5
4.0
280
330
5.5
5.5
210
240
Unit
ns
ns
mA
mA
ns
ns
mA
mA
Flow Through
2-1-1-1
Rev: 1.00 9/2004
1/29
漏 2004, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.

GS816118CD-250IT相关型号PDF文件下载

您可能感兴趣的PDF文件资料

热门IC型号推荐

©2026 维库电子市场网（www.dzsc.com）　备案号：浙B2-20050339-1 经营许可证：浙B2-20210386版权声明
买家服务热线：0571-85317607 | 买家服务部QQ： QQ:1609526468
卖家服务热线：0571-85317607 | 卖家服务部QQ： QQ:331652727

扫码下载APP，
一键连接广大的电子世界。

在线人工客服

买家服务：
卖家服务：
技术客服：

0571-85317607

网站技术支持

13606545031

客服在线时间周一至周五
9:00-17:30

关注官方微信号，
第一时间获取资讯。

建议反馈
返回顶部

建议反馈

联系人：

联系方式：

按住滑块，拖拽到最右边
>>
感谢您向阿库提出的宝贵意见，您的参与是维库提升服务的动力！意见一经采纳，将有感恩红包奉上哦！

PDF纠错X

投诉电话：0571-85317607 投诉QQ：

如选匿名将无法为您反馈投诉结果，建议实名投诉！