AK436256D datasheet, PDF - EEWORLD Datasheet

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AK436256D: Description262,144 X 8 bit mos dynamic random access memory; File Size85KB，2 Pages; ManufacturerACCUTEK; Websitehttp://www.accutekmicro.com/

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262,144 X 8 bit mos dynamic random access memory

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Accutek

Microcircuit

Corporation

DESCRIPTION

The Accutek AK63232Z SRAM Module consists of fast high perfor-

mance SRAMs mounted on a low profile, 64 pin ZIP Board. The

module utilizes four 28 pin 32K x 8 SRAMs in 300 mil SOJ packages

and four decoupling capacitors mounted on the front 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 8 nSEC to 45 nSEC

in CMOS or BiCMOS technology.

The Accutek module is designed to have a maximum seated height

of 0.500 inch. The module conforms to JEDEC-standard sizes and

pin-out configurations. This, along with use of two pins for module

memory density identification, PD

and PD

, minimizes

interchangeability and design considerations when changing from

one module size to the other in customer applications.

AK63232Z

32,768 x 32 Bit CMOS / BiCMOS

Static Random Access Memory

Top View

64-Pin ZIP

Upward compatible with 64K x 32 (AK63264), 256K x 32

(AK632256), 512K x 32 (AK632512) and 1 Meg x 32

(AK6321024)

Presence Detect, PD

and PD

for identifying module density

Fast Access Times range from 8 nSEC BiCMOS to 45 nSEC

CMOS

TTL compatible inputs and outputs

Single 5 volt power supply - AK63232Z

Single 3.3 volt power supply - AK63232Z/3.3

Operating temperature range in free air, 0

C to 70

FEATURES

32,768 x 32 bit organization

JEDEC standard 64 pin ZIP format

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

selects (CE)

Low height, 0.500 inch maximum seated height

PIN NOMENCLATURE

- A

- CE

- DQ

- PD

Vcc

Vss

Address Inputs

Chip Enable

Data In/Data Out

Output Enable

Presence Detect

Power Supply

Ground

Write Enable

PIN ASSIGNMENT

PIN #

SYMBOL

PIN #

SYMBOL

PIN #

SYMBOL

PIN #

SYMBOL

FUNCTIONAL DIAGRAM

A14

Vss

PD0

PD1

DQ1

DQ9

DQ2

DQ10

DQ3

DQ11

DQ4

DQ12

Vcc

DQ13

DQ5

DQ14

DQ6

DQ15

DQ7

DQ16

DQ8

Vss

A14

CE2

CE1

CE4

CE3

Vss

DQ25

DQ17

DQ26

DQ18

DQ27

DQ19

DQ28

DQ20

A10

A11

A12

Vcc

A13

DQ21

DQ29

DQ22

DQ30

DQ23

DQ31

DQ24

DQ32

Vss

AO-

A14

DQ1

DQ2

DQ3

DQ4

DQ5

DQ6

DQ7

DQ8

DQ1

DQ2

DQ3

DQ4

DQ5

DQ6

DQ7

DQ8

CE1

AO-

DQ1

A14

DQ2

DQ3

DQ4

DQ5

DQ6

DQ7

DQ8

DQ9

DQ10

DQ11

DQ12

DQ13

DQ14

DQ15

DQ16

CE2

AO-

DQ1

A14

MODULE OPTIONS

Leaded ZIP: AK63232Z

DQ2

DQ3

DQ4

DQ5

DQ6

DQ7

DQ8

DQ17

DQ18

DQ19

DQ20

DQ21

DQ22

DQ23

DQ24

CE3

AO-

DQ1

A14

PD0 = Open

PD1 = Open

CE4

DQ2

DQ3

DQ4

DQ5

DQ6

DQ7

DQ8

DQ25

DQ26

DQ27

DQ28

DQ29

DQ30

DQ31

DQ32

AK436256D Related Products

	AK436256D	AK49256G	AK416256S	AK4161024Z	AK411024G	AK411024S	AK6161024W	AK61616384W	AK43216384W
Description	262,144 X 8 bit mos dynamic random access memory	16,384 x 32 bit cmos / Bicmos static random access memory	262,144 X 8 bit mos dynamic random access memory	262,144 X 8 bit mos dynamic random access memory	65,536 x 32 bit cmos/Bicmos static random access memory	65,536 x 32 bit cmos/Bicmos static random access memory	262,144 X 8 bit mos dynamic random access memory	262,144 X 8 bit mos dynamic random access memory	262,144 X 8 bit mos dynamic random access memory

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Shortcut: A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BO BP BQ BR BS BT BU BV BW BX BY BZ C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DZ

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