LH53517T 데이터 시트보기 (PDF) - Sharp Electronics

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LH53517T

CMOS 512K (64K × 8) MROM

Sharp Electronics 

LH53517

CMOS 512K MROM

A15 1

A14 27

A13 26

A12 2

A11 23

A10 21

A9 24

A8 25

A7 3

A6 4

A5 5

A4 6

A3 7

A2 8

A1 9

A0 10

MEMORY

MATRIX

(65,536 x 8)

COLUMN SELECTOR

SENSE AMPLIFIER

CE 20

OE/OE 22

CE

BUFFER

TIMING

GENERATOR

OE

BUFFER

DATA

OUTPUT BUFFER

28 14

VCC GND

NOTE: Pin numbers apply to the 28-pin DIP or SOP.

19 18 17 16 15 13 12 11

D7 D6 D5 D4 D3 D2 D1 D0

Figure 3. LH53517 Block Diagram

53517-3

PIN DESCRIPTION

SIGNAL

A0 – A15

D0 – D7

CE

PIN NAME

Address input

Data output

Chip enable input

NOTE

NOTE:

1. Active level of OE/OE is mask-programmable.

SIGNAL

OE/OE

VCC

GND

PIN NAME

Output enable input

Power supply (+5 V)

Ground

NOTE

1

TRUTH TABLE

CE

OE/OE

H

X

L

L/H

H/L

NOTE:

X = H or L

DATA OUTPUT

High-Z

Output

CURRENT CONSUMPTION

Standby

Operating

ABSOLUTE MAXIMUM RATINGS

2

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