Datasheet > HMS25632J2V

HMS25632J2V

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
HANBIT		静态存储器
页数	文件大小	规格书
7页	55K
描述
SRAM MODULE 1Mbyte (256K x 32-Bit) 3.3V, 68-Pin JLCC Packaging

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HMS25632J2V 数据手册

HANBit

HMS25632J2V

SRAM MODULE 1Mbyte (256K x 32-Bit) 3.3V, 68-Pin JLCC Packaging

HMS25632J2V

Part No.

GENERAL DESCRIPTION

The HMS25632J2V is a high-speed static random access memory (SRAM) module containing 262,144 words organized in a

x32-bit configuration. The module consists of two 256K x 16 SRAMs mounted on a 68-pin, double-sided, FR4-printed circuit

board. The HMS25632J2V uses 31 common input and output lines and has an output enable pin which operates faster than

address access time at read cycle. Also it allows that lower and upper byte access by data byte control (/BS0~/BS3). Output

enable (/OE) and write enable (/WE) can set the memory input and output. Data is written into the SRAM memory when write

enable (/WE) and chip enable (/CE) inputs are both LOW. Reading is accomplished when /WE remains HIGH and /CE and

output enable (/OE) are LOW. For reliability, this SRAM module is designed as multiple power and ground pin. All module

components may be powered from a single +3.3V DC power supply and all inputs and outputs are fully LVTTL-compatible.

FEATURES

w Access times : 10, 12 ,15, and 70, 85, 100ns

PIN ASSIGNMENT

w Low Power Dissipation

w High-density 1Mbyte design

w High-reliability, high-speed design

68 67 66 65 64 63 62 61

w Single + 3.3V ±0.3V power supply

w Easy memory expansion /CE

and /OE functions

DQ17

DQ18

DQ19

Vs s

DQ20

DQ21

DQ22

DQ23

Vcc

DQ24

DQ25

DQ26

DQ27

Vs s

DQ28

DQ29

DQ30

DQ14

DQ13

DQ12

Vs s

DQ11

DQ10

DQ9

DQ8

Vcc

DQ7

DQ6

DQ5

DQ4

Vs s

w All inputs and outputs are

LVTTL-compatible

w Industry-standard pinout

w FR4-PCB design

w Low profile 68-pin JLCC

OPTIONS

w Timing

MARKING

DQ3

DQ2

DQ1

10ns access

12ns access

15ns access

-10

-12

-15

27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43

w Packages

68-pin JLCC

JLCC TOP VIEW

PIN FUNCTION

PIN NAME

A0-A17

DQ0-31

/WE

PIN FUNCTION

PIN NAME

/BS0 ~ /BS3

Vcc

PIN FUNCTION

Byte Controls

Power(+3.3V)

Ground

Address Inputs

Data Inputs

Write Enable

Chip Enable

Output Enable

Vss

/CE

N.C

No Connection

/OE

URL: www.hbe.co.kr

HANBit ElectronicsCo.,Ltd.

Rev. 1.0 (September / 2002)

12 3 4 5 6 7

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