PLS153 データシートの表示（PDF） - Philips Electronics

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PLS153

Programmable logic arrays(18 ×42 ×10)

Philips Electronics 

Philips Semiconductors Programmable Logic Devices

Programmable logic arrays

(18 × 42 × 10)

OR ARRAY – (B)

P

S

P

S

Pn STATUS

ACTIVE1

CODE

A

NOTES:

1. This is the initial unprogrammed state of

all links.

2. Any gate Pn will be unconditionally inhibited

if both the True and Complement of an input

(either I or B) are left intact.

VIRGIN STATE

A factory shipped virgin device contains all

fusible links intact, such that:

1. All outputs are at “H” polarity.

2. All Pn terms are disabled.

3. All Pn terms are active on all outputs.

Pn STATUS

INACTIVE

CODE

•

SP00282

CAUTION: PLS153A TEST

COLUMNS

The PLS153A incorporates two columns not

shown in the logic block diagram. These

columns are used for in-house testing of the

device in the unprogrammed state. These

columns must be disabled prior to using the

PLS153A in your application. If you are using

a Philips Semiconductors-approved

programmer, the disabling is accomplished

during the device programming sequence. If

these columns are not disabled, abnormal

operation is possible.

Furthermore, because of these test columns,

the PLS153A cannot be programmed using

the programmer algorithm for the PLS153.

Product specification

PLS153/A

October 22, 1993

7

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