HT27C020 데이터 시트보기 (PDF) - Holtek Semiconductor

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HT27C020

OTP CMOS 256K×8-Bit EPROM

Holtek Semiconductor 

HT27C020

Product Identification Code

Code

Pins

Hex

A0 A1 DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0 Data

Manufacturer 0

1

0

0

0

1

1

1

0

0 1C

Device Type

1

1

0

0

0

0

0

0

1

0

02

0

0

0

1

1

1

1

1

1

1 7F

Continuation

1

0

0

1

1

1

1

1

1

1 7F

Figure 1. A.C. waveforms for read operation

8

10th May ’99

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