EDI9F37512C 데이터 시트보기 (PDF) - Unspecified

부품명

상세내역

제조사

EDI9F37512C

512Kx37 Static RAM CMOS, High Speed Module

Unspecified 

EDI9F37512C

512Kx37 Static RAM CMOS, High Speed Module

FEATURES

•512Kx37 bit CMOS Static RAM

• Access Times: 45 and 55ns

• Individual Byte Selects

• Fully Static, No Clocks

• TTL Compatible I/O

•High Density Package

• 72 lead SIMM, No. 418

• Common Data Inputs and Outputs

•Single +5V (±10%) Supply Operation

FIG. 1

PIN CONFIGURATIONS AND BLOCK DIAGRAM

AD3 1

AD4 2

AD1 3

AD2 4

VSS 5

AD0 6

AW 7

DQ0 8

DQ8 9

DQ1 10

DQ9 11

DQ2 12

DQ10 13

DQ3 14

DQ11 15

VCC 16

A0 17

A1 18

A2 19

A3 20

A4 21

A5 22

DQ12 23

DQ4 24

DQ13 25

DQ5 26

DQ14 27

DQ6 28

DQ15 29

DQ7 30

VSS 31

E 32

A6 33

A7 34

W1 35

W0 36

W3 37

W2 38

A18 39

A17 40

G 41

VSS 42

DQ24 43

DQ16 44

DQ25 45

DQ17 46

DQ26 47

DQ18 48

DQ27 49

DQ19 50

A8 51

A9 52

A10 53

A11 54

A12 55

A13 56

VCC 57

A14 58

A15 59

DQ20 60

DQ28 61

DQ21 62

DQ29 63

DQ22 64

DQ30 65

DQ23 66

DQ31 67

VSS 68

A16 69

PD1 70

NC 71

PD0 72

9F37512C Pin Config.

DESCRIPTION

The EDI9F37512C is a high speed 20 megabit Static RAM module

organized as 512K words x 37 bits. This module is constructed from

five 512Kx8 Static RAMs in TSOP packages on an epoxy laminate

(FR4) board.

Four write selects (W0-W3) are used to independently enable the four

bytes. Reading and writing can be executed on individual bytes or any

combination of multiple bytes through proper use of selects.

The EDI9F37512C is offered in a 72 lead SIMM which allows 20

megabits of memory to be placed in less than 1.5 square inch of board

space.

All inputs and outputs are TTL compatible and operate from a single

5V supply. Fully asynchronous circuitry requires no clocks or refresh-

ing for operation and provides equal access and cycle times for ease

of use.

The SIMM module contains two Presence Detect pins which are used

to identify module memory density in applications where alternate

modules can be interchanged.

PIN NAMES

AØ-A18

E

W0-W3

AW

G

DQØ-DQ31

VCC

VSS

PD0-PD1

Address Inputs

Chip Enables

Write Enable

Parity Write Enable

Output Enable

Common Data Input/Output

Power (+5V±10%)

Ground

Presence Detect

A0-A18

E

G

W0

W1

W2

W3

AW

512k

x8

DQ0-DQ7

512k

x8

DQ8-DQ15

512k

x8

DQ16-DQ23

512k

x8

DQ24-DQ31

512k

x8

AD0-AD4

9F37512C Blk Dia

May 2001 Rev. 4

ECO #14325

1

White Electronic Designs Corporation • (508) 366-5151 • www.whiteedc.com

Share Link: