HT27LC040 datasheet(6/15 Pages) HOLTEK

номер детали	HT27LC040

подробное описание детали	CMOS 512K 8-Bit OTP EPROM

PDF	15 Pages

Scroll/Zoom	100%

производитель	HOLTEK [Holtek Semiconductor Inc]

домашняя страница	http://www.holtek.com

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Product Identification Code

Code

Pins

Hex

Data

DQ7

DQ6

DQ5

DQ4

DQ3

DQ2

DQ1

DQ0

Manufacturer

0100011100

Device Type

1100000100

Continuation

0001111111

1001111111

HT27LC040

Rev. 1.30

December 8, 2003

Operation Mode Truth Table

All the operation modes are shown in the table following.

Mode

VPP

Output

Read

VIL

VCC

Dout

Output Disable

VIL

VIH

VCC

High Z

Standby (TTL)

VIH

VCC

High Z

Standby (CMOS)

VCC

± 0.3V

VCC

High Z

Program

VIL

VIH

VPP

DIN

Program Verify

VIL

VPP

DOUT

Product Inhibit

VIH

VPP

High Z

Manufacturer Code (3)

VIL

VIH

VH (1)

VCC

Device Type Code (3)

VIL

VIH

VH (1)

VCC

Note:

(1) VH = 12.0V

± 0.5V

(2) X=Either VIH or VIL

(3) For Manufacturer Code and Device Code, A1=VIH, When A1=VIL, both codes will read 7F

O E

A d d r e s s

A d d r e s s V a l i d

t C E

t O E

t A C C

H I G H Z

O u t p u t V a l i d

t O H

t D F

O u t p u t

C E

Figure 1. A.C. Waveforms for Read Operation

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