HM-6642/883 Ver la hoja de datos (PDF) - Intersil

Número de pieza

componentes Descripción

Fabricante

HM-6642/883

512 x 8 CMOS PROM

Intersil 

Functional Diagram

HM-6642/883

A8

A

A7

A6

LATCHED

6

GATED

ADDRESS

ROW

A5

A4

REGISTER

A

DECODER

64

A3

6

64 x 64

MATRIX

ALL LINES POSITIVE LOGIC - ACTIVE HIGH

THREE STATE BUFFERS:

A HIGH

OUTPUT ACTIVE

A

A2

A1

A0

LATCHED

ADDRESS

REGISTER

3

A

3

88 8888 8 8

GATED COLUMN

DECODER

D

DATA LATCHES:

L HIGH

Q=D

Q LATCHES ON RISING EDGE OF E

ADDRESS LATCHES AND GATED DECODERS:

LATCH ON FALLING EDGE OF E

GATE ON FALLING EDGE OF E

P SHOULD BE HARDWIRED TO GND EXCEPT

DURING PROGRAMMING

E

8-BIT DATA LATCH

G1

G2

G3

Q0 Q1 Q2 Q3

Q4

Q5 Q6 Q7

2

Share Link: