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GS881E18BGD-250

更新时间： 2024-11-11 05:10:55
品牌 Logo 应用领域
GSI 存储内存集成电路静态存储器
页数 文件大小 规格书
40页 906K
描述
512K x 18, 256K x 32, 256K x 36 9Mb Sync Burst SRAMs

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中文翻译

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GS881E18BGD-250 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：BGA包装说明：LBGA,
针数：165Reach Compliance Code：unknown
ECCN代码：3A991.B.2.BHTS代码：8542.32.00.41
风险等级：5.84Is Samacsys：N
最长访问时间：5.5 ns其他特性：FLOW-THROUGH OR PIPELINED ARCHITECTURE; ALSO OPERATES AT 3.3V SUPPLY
JESD-30 代码：R-PBGA-B165JESD-609代码：e1
长度：15 mm内存密度：9437184 bit
内存集成电路类型：CACHE SRAM内存宽度：18
湿度敏感等级：3功能数量：1
端子数量：165字数：524288 words
字数代码：512000工作模式：SYNCHRONOUS
最高工作温度：70 °C最低工作温度：
组织：512KX18封装主体材料：PLASTIC/EPOXY
封装代码：LBGA封装形状：RECTANGULAR
封装形式：GRID ARRAY, LOW PROFILE并行/串行：PARALLEL
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.4 mm最大供电电压 (Vsup)：2.7 V
最小供电电压 (Vsup)：2.3 V标称供电电压 (Vsup)：2.5 V
表面贴装：YES技术：CMOS
温度等级：COMMERCIAL端子面层：TIN SILVER COPPER
端子形式：BALL端子节距：1 mm
端子位置：BOTTOM处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：13 mmBase Number Matches：1

GS881E18BGD-250 数据手册

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GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)  
250 MHz–150 MHz  
100-Pin TQFP & 165-bump BGA  
Commercial Temp  
Industrial Temp  
512K x 18, 256K x 32, 256K x 36  
9Mb Sync Burst SRAMs  
2.5 V or 3.3 V V  
DD  
2.5 V or 3.3 V I/O  
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.  
Features  
• FT pin for user-configurable flow through or pipeline  
operation  
• Dual Cycle Deselect (DCD) operation  
• IEEE 1149.1 JTAG-compatible Boundary Scan  
• 2.5 V or 3.3 V +10%/–10% core power supply  
• 2.5 V or 3.3 V I/O supply  
• LBO pin for Linear or Interleaved Burst mode  
• Internal input resistors on mode pins allow floating mode pins  
• Default to Interleaved Pipeline mode  
• Byte Write (BW) and/or Global Write (GW) operation  
• Internal self-timed write cycle  
• Automatic power-down for portable applications  
• JEDEC-standard 100-lead TQFP and 165-bump BGA  
packages  
• Pb-Free 100-lead TQFP and 165-bump BGA packages  
available  
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.  
DCD Pipelined Reads  
The GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)  
is a DCD (Dual Cycle Deselect) pipelined synchronous  
SRAM. SCD (Single Cycle Deselect) versions are also  
available. DCD SRAMs pipeline disable commands to the  
same degree as read commands. DCD RAMs hold the deselect  
command for one full cycle and then begin turning off their  
outputs just after the second rising edge of clock.  
Functional Description  
Byte Write and Global Write  
Applications  
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.  
The GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)  
is a 9,437,184-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.  
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.  
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  
Core and Interface Voltages  
The GS881E18B(T/D)/GS881E32B(T/D)/GS881E36B(T/D)  
operates on a 2.5 V or 3.3 V power supply. All input are 3.3 V  
and 2.5 V compatible. Separate output power (V  
) pins are  
DDQ  
used to decouple output noise from the internal circuits and are  
3.3 V and 2.5 V compatible.  
Paramter Synopsis  
-333  
-300  
-250  
-200  
-150  
Unit  
tKQ  
2.5  
3.0  
2.5  
3.3  
2.5  
4.0  
3.0  
5.0  
3.8  
6.7  
ns  
ns  
tCycle  
Pipeline  
3-1-1-1  
Curr (x18)  
Curr (x32/x36)  
250  
290  
230  
265  
200  
230  
170  
195  
140  
160  
mA  
mA  
tKQ  
4.5  
4.5  
5.0  
5.0  
5.5  
5.5  
6.5  
6.5  
7.5  
7.5  
ns  
ns  
tCycle  
Flow Through  
2-1-1-1  
Curr (x18)  
Curr (x32/x36)  
200  
230  
185  
210  
160  
185  
140  
160  
128  
145  
mA  
mA  
Rev: 1.04 3/2005  
1/40  
© 2002, GSI Technology  
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.  
1234567...40

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与GS881E18BGD-250相关器件

型号 品牌 获取价格 描述 数据表
GS881E18BGD-250I GSI

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 		512K x 18, 256K x 32, 256K x 36 9Mb Sync Burst SRAMs
GS881E18BGD-250IT GSI

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 		Cache SRAM, 512KX18, 5.5ns, CMOS, PBGA165, 13 X 15 MM, 1 MM PITCH, ROHS COMPLIANT, FPBGA-1
GS881E18BGD-250IV GSI

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 		512K x 18, 256K x 32, 256K x 36 9Mb Sync Burst SRAMs
GS881E18BGD-250IVT GSI

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 		暂无描述
GS881E18BGD-250T GSI

获取价格

 		Cache SRAM, 512KX18, 5.5ns, CMOS, PBGA165, 13 X 15 MM, 1 MM PITCH, ROHS COMPLIANT, FPBGA-1
GS881E18BGD-250V GSI

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 		512K x 18, 256K x 32, 256K x 36 9Mb Sync Burst SRAMs
GS881E18BGD-300 GSI

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 		512K x 18, 256K x 32, 256K x 36 9Mb Sync Burst SRAMs
GS881E18BGD-300I GSI

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 		512K x 18, 256K x 32, 256K x 36 9Mb Sync Burst SRAMs
GS881E18BGD-300IT GSI

获取价格

 		Cache SRAM, 512KX18, 5ns, CMOS, PBGA165, 13 X 15 MM, 1 MM PITCH, ROHS COMPLIANT, FPBGA-165
GS881E18BGD-300T GSI

获取价格

 		Cache SRAM, 512KX18, 5ns, CMOS, PBGA165, 13 X 15 MM, 1 MM PITCH, ROHS COMPLIANT, FPBGA-165

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