LH5P8128N-80 Просмотр технического описания (PDF) - Sharp Electronics

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LH5P8128N-80

CMOS 1M (128K × 8) Pseudo-Static RAM

Sharp Electronics 

LH5P8128

CMOS 1M (128K × 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

COLUMN

ADDRESS

BUFFER

ROW

ADDRESS

BUFFER

REFRESH

ADDRESS

COUNTER

EXT/INT

ADDRESS

MUX

COLUMN

DECODER

SENSE

AMPS

ROW

DECODER

MEMORY

ARRAY

VBB GENERATOR

I/O

SELECTOR

DATA

IN

BUFFER

DATA

OUT

BUFFER

16 GND

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

CE1 22

CE2 30

CLOCK

GENERATOR

RFSH 1

OE 24

R/W 29

REFRESH

CONTROLLER

REFRESH

TIMER

NOTE: Pin numbers apply to the 32-pin DIP or SOP.

Figure 3. LH5P8128 Block Diagram

PIN DESCRIPTION

SIGNAL

A0 - A16

R/W

OE

PIN NAME

Address input

Read/Write input

Output Enable Input

SIGNAL

CE1, CE2

RFSH

I/O0 - I/O7

PIN NAME

Chip Enable input

Refresh input

Data input/output

5P8128-2

2

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