Datasheet > GS8672D18AE-250I

GS8672D18AE-250I

更新时间： 2023-05-15 00:00:00

品牌	Logo	应用领域
GSI		双倍数据速率静态存储器
页数	文件大小	规格书
28页	838K
描述
DDR SRAM, 4MX18, 0.45ns, CMOS, PBGA165, 15 X 17 MM, 1 MM PITCH, FPBGA-165

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GS8672D18AE-250I 数据手册

Preliminary

GS8672D18/36AE-333/300/250/200

333 MHz–200 MHz

165-Bump BGA

Commercial Temp

Industrial Temp

72Mb SigmaQuad-II™

Burst of 4 ECCRAM™

1.8 V V

1.8 V and 1.5 V I/O

Features

Clocking and Addressing Schemes

• On-Chip ECC with virtually zero SER

• Simultaneous Read and Write SigmaQuad™ Interface

• JEDEC-standard pinout and package

• Dual Double Data Rate interface

• Byte Write Capability

• Burst of 4 Read and Write

• 1.8 V +100/–100 mV core power supply

• 1.5 V or 1.8 V HSTL Interface

• Pipelined read operation

• Fully coherent read and write pipelines

• ZQ pin for programmable output drive strength

• IEEE 1149.1 JTAG-compliant Boundary Scan

• Pin-compatible with present 9Mb, 18Mb, and 36Mb and

144Mb devices

The GS8672D18/36AE SigmaQuad-II ECCRAMs are

synchronous devices. They employ two input register clock

inputs, K and K. K and K are independent single-ended clock

inputs, not differential inputs to a single differential clock input

buffer. The device also allows the user to manipulate the

output register clock inputs quasi independently with the C and

C clock inputs. C and C are also independent single-ended

clock inputs, not differential inputs. If the C clocks are tied

High, the K clocks are routed internally to fire the output

registers instead.

Because Separate I/O SigmaQuad-II B4 ΕCCRAMs always

transfer data in four packets, A0 and A1 are internally set to 0

for the first read or write transfer, and automatically

• 165-bump, 15 mm x 17 mm, 1 mm bump pitch BGA package

• RoHS-compliant 165-bump BGA package available

incremented by 1 for the next transfers. Because the LSB is

tied off internally, the address field of a SigmaQuad-II B4

ECCRAM is always one address pin less than the advertised

index depth (e.g., the 4M x 18 has a 1024K addressable index).

SigmaQuad™ ECCRAM Overview

The GS8672D18/36AE SigmaQuad-II ECCRAMs are built in

compliance with the SigmaQuad-II SRAM pinout standard for

Separate I/O synchronous SRAMs. They are 75,497,472-bit

(72Mb) ECCRAMs. The GS8672D18/36AE SigmaQuad-II

ECCRAMs are just one element in a family of Low power,

Low voltage HSTL I/O ECCRAMs designed to operate at the

speeds needed to implement economical High performance

networking systems.

On-Chip Error Correction Code

GSI's ECCRAMs implement an ECC algorithm that detects

and corrects all single-bit memory errors, including those

induced by Soft Error Rate (SER) events such as cosmic rays,

alpha particles. The resulting SER of these devices is

anticipated to be <0.002 FITs/Mb — a 5-order-of-magnitude

improvement over comparable SRAMs with no On-Chip ECC,

which typically have an SER of 200 FITs/Mb or more. SER

quoted above is based on reading taken at sea level.

However, the On-Chip Error Correction (ECC) will be

disabled if a “Half Write” operation is initiated. See the Byte

Write Contol section for further information.

Parameter Synopsis

-333

3.0 ns

0.45 ns

-300

3.3 ns

0.45 ns

-250

4.0 ns

0.45 ns

-200

5.0 ns

0.45 ns

tKHKH

tKHQV

Rev: 1.02 5/2010

1/28

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

12 3 4 5 6 7...28

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与GS8672D18AE-250I相关器件

型号	品牌	获取价格	描述	数据表
GS8672D18AE-300	GSI	获取价格	DDR SRAM, 4MX18, 0.45ns, CMOS, PBGA165, 15 X 17 MM, 1 MM PITCH, FPBGA-165
GS8672D18AE-300I	GSI	获取价格	DDR SRAM, 4MX18, 0.45ns, CMOS, PBGA165, 15 X 17 MM, 1 MM PITCH, FPBGA-165
GS8672D18AE-300IT	GSI	获取价格	DDR SRAM, 4MX18, 0.45ns, CMOS, PBGA165, 15 X 17 MM, 1 MM PITCH, FPBGA-165
GS8672D18AE-300T	GSI	获取价格	DDR SRAM, 4MX18, 0.45ns, CMOS, PBGA165, 15 X 17 MM, 1 MM PITCH, FPBGA-165
GS8672D18AE-333	GSI	获取价格	DDR SRAM, 4MX18, 0.45ns, CMOS, PBGA165, 15 X 17 MM, 1 MM PITCH, FPBGA-165
GS8672D18AE-333I	GSI	获取价格	DDR SRAM, 4MX18, 0.45ns, CMOS, PBGA165, 15 X 17 MM, 1 MM PITCH, FPBGA-165
GS8672D18AE-333IT	GSI	获取价格	DDR SRAM, 4MX18, 0.45ns, CMOS, PBGA165, 15 X 17 MM, 1 MM PITCH, FPBGA-165
GS8672D18AGE-250I	GSI	获取价格	DDR SRAM, 4MX18, 0.45ns, CMOS, PBGA165, 15 X 17 MM, 1 MM PITCH, ROHS COMPLIANT, FPBGA-165
GS8672D18AGE-333	GSI	获取价格	DDR SRAM, 4MX18, 0.45ns, CMOS, PBGA165, 15 X 17 MM, 1 MM PITCH, ROHS COMPLIANT, FPBGA-165
GS8672D18AGE-333T	GSI	获取价格	DDR SRAM, 4MX18, 0.45ns, CMOS, PBGA165, 15 X 17 MM, 1 MM PITCH, ROHS COMPLIANT, FPBGA-165

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