LH5PV8512N-12 데이터 시트보기 (PDF) - Sharp Electronics

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LH5PV8512N-12

CMOS 4M (512K × 8) Pseudo-Static RAM

Sharp Electronics 

LH5PV8512

CMOS 4M (512K × 8) Pseudo-Static RAM

A0 12

A1 11

A2 10

A3 9

A4 8

A5 7

A6 6

A7 5

A8 27

A9 26

A10 23

A11 25

A12 4

A13 28

A14 3

A15 31

A16 2

A17 30

A18 1

CE 22

COLUMN

ADDRESS

BUFFER

ROW

ADDRESS

BUFFER

REFRESH

ADDRESS

COUNTER

CLOCK

GENERATOR

EXT/INT

ADDRESS

MUX.

COLUMN

DECODER

SENSE

AMPS

ROW

DECODER

MEMORY

ARRAY

VBB GENERATOR

I/O

SELECTOR

DATA

IN

BUFFER

DATA

OUT

BUFFER

OE/ 24

RFSH

REFRESH

CONTROLLER

REFRESH

TIMER

WE 29

Figure 2. LH5PV8512 Block Diagram

16 VSS

32 VCC

13 I/O0

14 I/O1

15 I/O2

17 I/O3

18 I/O4

19 I/O5

20 I/O6

21 I/O7

5PV8512-2

PIN DESCRIPTION

PIN NAME

A0 - A18

WE

OE/RFSH

FUNCTION

Address input

Write enable input

Output enable input

Refresh control input

PIN NAME

CE

I/O0 - I/O7

VCC

GND

FUNCTION

Chip enable input

Data input/output

Power supply

Ground

2

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