PLS173 Datasheet, PDF (1/8 Pages) NXP Semiconductors – Programmable logic array 22 × 42 × 10

Philips Semiconductors Programmable Logic Devices
Programmable logic array
(22 × 42 × 10)
Product specification
PLS173
DESCRIPTION
The PLS173 is a two-level logic element
consisting of 42 AND gates and 10 OR gates
with fusible link connections for programming
I/O polarity and direction.
All AND gates are linked to 12 inputs (I) and
10 bidirectional I/O lines (B). These yield
variable I/O gate configurations via 10
direction control gates (D), ranging from 22
inputs to 10 outputs.
On-chip T/C buffers couple either True (I, B)
or Complement (I, B) input polarities to all
AND gates, whose outputs can be optionally
linked to all OR gates. Their output polarity, in
turn, is individually programmable through a
set of EX-OR gates for implementing
AND/OR or AND/NOR logic functions.
The PLS173 is field programmable, enabling
the user to quickly generate custom patterns
using standard programming equipment.
Order codes for this device are listed below.
FEATURES
• I/O propagation delay: 30ns (max.)
• 12 inputs
• 42 AND gates
• 10 OR gates
• 10 bidirectional I/O lines
• Active-High or -Low outputs
• 42 product terms:
– 32 logic terms
– 10 control terms
• Ni-Cr programmable links
• Input loading: –100µA (max.)
• Power dissipation: 750mW (typ.)
• 3-State outputs
• 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 V_CC
23 B9
22 B8
21 B7
20 B6
19 B5
18 B4
17 B3
16 B2
15 B1
14 B0
13 I11
N = Plastic DIP (300mil-wide)
A Package
I3 I2 I1 I0 V_CC 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
28-Pin Plastic Leaded Chip Carrier
ORDER CODE
PLS173N
PLS173A
DRAWING NUMBER
0410D
0401F
October 22, 1993
25
853–0324 11164