PLS159 View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

PLS159

Programmable logic sequencer (16 × 45 × 12)

Philips Electronics 

Philips Semiconductors Programmable Logic Devices

Programmable logic sequencer

(16 × 45 × 12)

Product specification

PLS159A

“OR” ARRAY – (Qn = J-K Type)

Tn

Tn

Tn

Tn

J

Q

J

Q

J

Q

J

Q

M = DISABLED

M = DISABLED

M = DISABLED

M = DISABLED

K

K

K

K

ACTION

TOGGLE

CODE

O

“OR” ARRAY – (S or B)

ACTION

SET

CODE

H

ACTION

RESET

CODE

L

“EX-OR” ARRAY – (B)

ACTION

HOLD

CODE

–

Tn

Tn

S

B

S

B

S, B

S, B

Tn STATUS

ACTIVE1

CODE

A

“OE” ARRAY – (E)

OE

Tn STATUS

INACTIVE

CODE

•

OE

POLARITY

LOW1

CODE

L

POLARITY

HIGH

CODE

H

OE

OE

En

En

En

ACTION

IDLE1, 4

CODE

O

ACTION

CONTROL

CODE

A

ACTION

ENABLE4

CODE

•

ACTION

DISABLE

NOTES:

1. This is the initial unprogrammed state of all link pairs. It is normally associated with all unused (inactive) AND gates.

2. Any gate (T, FC, L, P, R, D)n will be unconditionally inhibited if both of the I, B, or Q links are left intact.

3. To prevent oscillations, this state is not allowed for C link pairs coupled to active gates Tn, FC.

4. En = O and En = • are logically equivalent states, since both cause Fn outputs to be unconditionally enabled.

5. These states are not allowed for control gates (L, P, R, D)n due to their lack of “OR” array links.

En

CODE

–

October 22, 1993

34

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