Datasheet > AK591024ASW-80

AK591024ASW-80

更新时间： 2024-11-10 03:55:47

品牌	Logo	应用领域
ACCUTEK		动态存储器
页数	文件大小	规格书
2页	93K
描述
DRAM

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中文翻译

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数据手册

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AK591024ASW-80 数据手册

Accutek

Microcircuit

Corporation

AK591024AS / AK591024AG

1,048,576 Word X 9 bit, CMOS

Dynamic Random Access Memory

DESCRIPTION

Front View

30-Pin SIM

The Accutek AK591024 high density memory modules is a random

access memory organized in 1 Meg x 9 bit words. The assembly

consists of two 1 Meg x 4 and one 1 Meg x 1 DRAMs in surface

mount packages mounted on the front side of a printed circuit board.

The module can be configured as a leadless 30 pad SIM or a leaded

30 pin SIP. This packaging approach provides a better than 6 to 1

density increase over standard DIP packaging.

30-Pin SIP

The operation of the AK591024 is identical to two 1 Meg x 4 plus one

1 Meg x 1 DRAMs. For the lower eight bits, the data input is tied to

data output and 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 conten-

tion of D and Q. Since the Write-Enable (WE) signal must always go

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

operation is not possible. For the ninth bit, the data input (D₉₎and

data output (Q₉) pins are brought out separately and controlled by a

separate PCAS for that bit. Bit nine is generally used for parity.

FEATURES

· Power:

· 1,048,576 x 9 bit organization

1.650 Watt Max Active (60 nS)

1.485 Watt Max Active (70 nS)

1.265 Watt Max Active (80 nS)

23.5 mWatt Standby (max)

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

SIP (Single In-Line Package)

· JEDEC standard pinout

· Operating free air temperature: 0^oto 70^oC

· Upward compatible with and AK594096 and AK5916384

· Downward compaitble with AK59256

· Common CAS, RAS and WE control for the lower eight bits

· 1024 refresh cycles/16ms

· Separate PCAS control for D₉and Q₉

· Functionally and Pin compatible with AK491024

PIN NOMENCLATURE

PIN ASSIGNMENT

FUNCTIONAL DIAGRAM

PIN #

SYMBOL

Vcc

CAS

DQ1

PIN #

SYMBOL

DQ5

DQ₁- DQ₈

D₉

Data In / Data Out

A₀- A₉

RAS

CAS

Data In

RAS

CAS

Q₉

Data Out

DQ1 +

DQ1

DQ2

DQ3

DQ4

DQ2

DQ3

DQ4

A₀- A₉

CAS, PCAS

RAS

Address Inputs

Column Address Strobe

Row Address Strobe

Write Enable

5v Supply

DQ6

DQ2

Vss

DQ7

A₀- A₉

RAS

CAS

DQ1

DQ2

DQ3

DQ4

Vss

DQ3

Vcc

DQ8

DQ5 +

DQ6

DQ7

DQ8

Vss

Ground

RAS

PCAS

No Connect

DQ4

A₀- A₉

RAS

CAS

MODULE OPTIONS

Vcc

PCAS

* WE

Leadless SIM: AK591024ASP

Leaded SIP: AK591024AGP

中文翻译

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与AK591024ASW-80相关器件

型号	品牌	获取价格	描述	数据表
AK591024D	ACCUTEK	获取价格	262,144 X 8 Bit MOS Dynamic Random Access Memory
AK591024G	ACCUTEK	获取价格	262,144 X 8 Bit MOS Dynamic Random Access Memory
AK591024GK10	ACCUTEK	获取价格	DRAM
AK591024GK80	ACCUTEK	获取价格	DRAM
AK591024GKI10	ACCUTEK	获取价格	DRAM
AK591024GKI70	ACCUTEK	获取价格	DRAM
AK591024GKI80	ACCUTEK	获取价格	DRAM
AK591024GKIX10	ACCUTEK	获取价格	DRAM
AK591024GKIX60	ACCUTEK	获取价格	DRAM
AK591024GKIX70	ACCUTEK	获取价格	DRAM

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