HT27C010

CMOS 128K´8-Bit OTP EPROM

Block Diagram

Rev. 1.10

1

November 21, 2002

Features

General Description

The HT27C010 chip family is a low-power, 1024K

(1,048,576) bit, +5V electrically one-time programmable

(OTP) read-only memories (EPROM). Organized into

128K words with 8 bits per word, it features a fast single

address location programming, typically at 75

ms per

byte. Any byte can be accessed in less than 70ns with

respect to Spec. This eliminates the need for WAIT

states in high-performance microprocessor systems.

The HT27C010 has separate Output Enable (OE) and

Chip Enable (CE) controls which eliminate bus conten-

tion issues.

X - D e c o d e r

Y - D e c o d e r

C e l l A r r a y

S A C K T

&

O u t p u t B u f f e r

C o l u m n

A d d r e s s

R o w

A d d r e s s

Y - G a t i n g

V C C

D Q 0 ~ D Q 7

V S S

C E

O E

P G M

V P P

C E & O E &

P G M & T E S T

C o n t r o l L o g i c