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PLUS173DA

Programmable logic arrays (22 × 42 × 10)

Philips Electronics 

Philips Semiconductors Programmable Logic Devices

Programmable logic arrays

(22 × 42 × 10)

Product specification

PLUS173B/D

DESCRIPTION

The PLUS173 PLDs are high speed,

combinatorial Programmable Logic Arrays.

The Philips Semiconductors state-of-the-art

Oxide Isolated Bipolar fabrication process is

employed to produce propagation delays as

short as 12ns.

The 24-pin PLUS173 devices have a

programmable AND array and a

programmable OR array. Unlike PAL ®

devices, 100% product term sharing is

supported. Any of the 32 logic product terms

can be connected to any or all of the 10

output OR gates. Most PAL ICs are limited to

7 AND terms per OR function; the PLUS173

devices can support up to 32 input wide OR

functions.

The polarity of each output is user-

programmable as either Active-High or

Active-Low, thus allowing AND-OR or

AND-NOR logic implementation. This feature

adds an element of design flexibility,

particularly when implementing complex

decoding functions.

The PLUS173 devices are user-

programmable using one of several

commercially available, industry standard

PLD programmers.

FEATURES

• I/O propagation delays (worst case)

– PLUS173B – 15ns max.

– PLUS173D – 12ns max.

• Functional superset of 20L10 and most

other 24-pin combinatorial PAL devices

• Two programmable arrays

– Supports 32 input wide OR functions

• 12 inputs

• 10 bi-directional I/O

• 42 AND gates

– 32 logic product terms

– 10 direction control terms

• Programmable output polarity

– Active-High or Active-Low

• Security fuse

• 3-State outputs

• Power dissipation: 750mW (typ.)

• TTL Compatible

APPLICATIONS

• Random logic

• Code converters

• Fault detectors

• Function generators

• Address mapping

• Multiplexing

PIN CONFIGURATIONS

N Package

I0 1

I1 2

I2 3

I3 4

I4 5

I5 6

I6 7

I7 8

I8 9

I9 10

I10 11

GND 12

24 VCC

23 B9

22 B8

21 B7

20 B6

19 B5

18 B4

17 B3

16 B2

15 B1

14 B0

13 I11

N = Plastic Dual In-Line (300mil-wide)

A Package

I3 I2 I1 I0 VCC B9 B8

4 3 2 1 28 27 26

NC 5

25 NC

I4 6

24 B7

I5 7

23 B6

I6 8

22 B5

I7 9

21 B4

I8 10

20 B3

NC 11

19 NC

12 13 14 15 16 17 18

I9 I10 GND I11 B0 B1 B2

A = Plastic Leaded Chip Carrier

ORDERING INFORMATION

DESCRIPTION

24-Pin Plastic Dual In-Line 300mil-wide

24-Pin Plastic Dual In-Line 300mil-wide

28-Pin Plastic Leaded Chip Carrier

28-Pin Plastic Leaded Chip Carrier

tPD (MAX)

15ns

12ns

15ns

12ns

ORDER CODE

PLUS173BN

PLUS173DN

PLUS173BA

PLUS173DA

DRAWING NUMBER

0410D

0410D

0401F

0401F

®PAL is a registered trademark of Advanced Micro Devices Corporation.

October 22, 1993

33

853–1298 11164

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