Datasheet > AK581024AGN-80

AK581024AGN-80

更新时间： 2022-12-01 20:31:56

品牌	Logo	应用领域
ACCUTEK		动态存储器
页数	文件大小	规格书
2页	78K
描述
DRAM

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数据手册

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AK581024AGN-80 数据手册

Accutek

Microcircuit

Corporation

AK581024AG / AK581024AS

1,048,576 x 8 bit CMOS

Dynamic Random Access Memory

DESCRIPTION

Front View

30-Pin SIM

The Accutek AK581024 high density memory modules is a random

access memory organized in 1 Meg x 8 bit words. The assembly

consists of two 1 Meg x 4 DRAMs in surface mount packages

mounted to a printed circuit board. The module can be configured

as a leadless 30 pad SIMM or a leaded 30 pin SIP. This packaging

approach provides a better than 6 to 1 density increase over stan-

dard DIP packaging.

The operation of the AK581024 is identical to two 1 Meg x 4 DRAMs.

The data input/output is brought out separately for each 1 Meg x 4

device, with common RAS, CAS and WE control. The OE pins are

tied to Vss which dictates the use of early-write cycles to prevent

contention of D and Q. Since the Write-Enable (WE) signal must al-

ways go low before CAS in a write cycle, Read-Write and

Read-Modify-Write operation is not possible.

30-Pin SIP

FEATURES

· 1.10 Watt active and 23.5 mWatt standby (max)

· Operating free air temperature: 0⁰to 70⁰C

· 1 Meg x 8 bit organization

· Optional 30 Pad SIM (Single In-Line Module) or 30 Pin leaded

SIP (Single In-Line Package)

· Upward compatible with AK584096 and AK5816384

· Functionally and Pin compatible with AK481024

· Available with access times of 60 to 100 nS

· JEDEC approved pinout

· Common CAS, RAS and WE control for eight DQ lines

· Separate CAS control for one separate pair of D and Q lines

· 1024 refresh cycles/16ms, A₀to A₉

PIN NOMENCLATURE

PIN ASSIGNMENT

FUNCTIONAL DIAGRAM

PIN #

SYMBOL

Vcc

CAS

DQ1

PIN #

SYMBOL

DQ5

DQ₁- DQ₈

A₀- A₉

CAS

Data In/Data Out

Address Inputs

Column Address Strobe

Row Address Strobe

Write Enable

RAS

DQ6

Vss

DQ7

DQ2

Vcc

5v Supply

Vss

Ground

Vss

DQ3

No Connect

DQ8

RAS

MODULE OPTIONS

DQ4

Leadless SIM: AK581024ASP

Leaded SIP: AK581024AGP

Vcc

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