ATF22V10B(1998) 查看數據表（PDF） - Atmel Corporation

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ATF22V10B
(Rev.:1998)

HighPerformance EE PLD

Atmel Corporation 

Electronic Signature Word

There are 64 bits of programmable memory that are always

available to the user, even if the device is secured. These

bits can be used for user-specific data.

Programming/Erasing

Programming/erasing is performed using standard PLD

programmers. See CMOS PLD Programming Hardware

and Software Support for information on software/program-

ming.

Input and I/O Pull-Ups

All ATF22V10B family members have internal input and I/O

pull-up resistors. Therefore, whenever inputs or I/Os are

not being driven externally, they will float to VCC. This

ensures that all logic array inputs are at known states.

These are relatively weak active pull-ups that can easily be

overdriven by TTL-compatible drivers (see input and I/O

diagrams below).

Input Diagram

I/O Diagram

6

ATF22V10B

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