Datasheet > AK63264W72-45

AK63264W72-45

更新时间： 2024-11-07 14:47:43

品牌	Logo	应用领域
ACCUTEK		静态存储器
页数	文件大小	规格书
2页	270K
描述
SRAM

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技术参数
数据手册

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AK63264W72-45 技术参数

生命周期：	Contact Manufacturer	包装说明：	,
Reach Compliance Code：	compliant	风险等级：	5.8
Base Number Matches：	1

AK63264W72-45 数据手册

AK63264W-72

65,536 x 32 Bit CMOS/BiCMOS

72 Pin Format

ACCUTEK

MICROCIRCUIT CORPORATION

Static Random Access Memory

DESCRIPTION

The Accutek AK63264W-72 SRAM Module consists of fast high

performance SRAMs mounted on a low profile, 72 pin SIM Board.

The module utilizes eight 28 pin 64K x 4 SRAMs in SOJ packages

and four decoupling capacitors mounted on each side of a printed

circuit board.

The SRAMs used have common I/O functions and single output en-

able functions. Also, four separate chip select (CE) connections are

used to independently enable the four bytes. The modules can be

supplied in a variety of access time values from 12 nSEC to

45 nSEC in CMOS or BiCMOS technology.

The Accutek module is designed to have a maximum seated height

of 0.600 inch to provide for the lowest height off the board. By off-

set-mounting the back surface SRAMs the module can be mounted

in either angled or straight-up SIM sockets. The module conforms

to JEDEC standard sizes and pin-out configurations. Using twopins

for module memory density identification, PD₀and PD₁, minimizes

interchangeability and design considerations when changing from

one module size to another in customer applications.

· Downward compatible with 128K x 32 (AK632128) and

32K x 32 (AK63232)

· Presence Detect PD₀and PD₁for identifying module density

· Fast access times range from 12 nSEC BiCMOS to 45 nSEC

CMOS

· Single 5 volt power supply - AK63264W-72

· Single 3.3 volt power supply - AK63264W-72/3.3

· Operating temperature range in free air, 0⁰C to 70⁰C

· Available with solder or gold leads

FEATURES

· 65,536 x 32 bit organization

· JEDEC Standardized 72 pin SIM or ZIP pinout

· Common I/O, single OE functions with four separate chip

ELECTRICAL SPECIFICATIONS

selects (CE)

Timing diagrams and basic electrical characteristics are those of the

standard 64K x 4 SRAMs used to construct these modules. Accutek’s

module design allows the flexibility of selecting industry-compatible

64K x 4 SRAMs from several semiconductor manufacturers.

· Low height, 0.600 inch maximum

· Upward compatible with 256K x 32 (AK632256) 512K x 32

(AK632512) and 1 Meg x 32 (AK6321024)

· TTL-compatible inputs and outputs

PIN NOMENCLATURE

PIN ASSIGNMENT

FUNCTIONAL DIAGRAM

PIN #

SYMBOL

PIN #

SYMBOL

PIN #

SYMBOL

CE4

CE3

PIN #

SYMBOL

A₀- A₁₅

CE₁- CE₄

DQ₁- DQ₃₂

Address Inputs

Chip Enable

Data In/Data Out

Output Enable

Presence Detect

Power Supply

Ground

A12

Vcc

A13

Vss

DQ13

DQ5

DQ14

DQ6

DQ15

DQ7

DQ16

DQ8

Vss

PD₀- PD₃

Vcc

PD0

PD1

DQ1

DQ9

DQ2

DQ10

DQ3

DQ11

DQ4

DQ12

Vcc

Vss

DQ21

DQ29

DQ22

DQ38

DQ23

DQ31

DQ24

DQ32

Vss

DQ25

DQ17

DQ26

DQ18

DQ27

DQ19

DQ28

DQ20

Vss

Write Enable

No Connect

MODULE OPTIONS

A15

A14

CE2

CE1

Leadless SIM: AK63264W-72

A10

A11

PD0 = Open

PD1 = Vss

中文翻译

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