Philips Semiconductors Programmable Logic Devices
Product specification
Programmable logic arrays
(22
脳
42
脳
10)
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
廬
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
鈥?/div>
I/O propagation delays (worst case)
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PLUS173B 鈥?15ns max.
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PLUS173D 鈥?12ns max.
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
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Functional superset of 20L10 and most
other 24-pin combinatorial PAL devices
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Two programmable arrays
鈥?/div>
Supports 32 input wide OR functions
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12 inputs
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10 bi-directional I/O
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42 AND gates
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32 logic product terms
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10 direction control terms
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Programmable output polarity
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Active-High or Active-Low
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Security fuse
鈥?/div>
3-State outputs
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Power dissipation: 750mW (typ.)
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TTL Compatible
APPLICATIONS
N = Plastic Dual In-Line (300mil-wide)
A Package
I3
4
NC 5
I4 6
I2
3
I1
2
I0 V
CC
B9 B8
1 28 27 26
25 NC
24 B7
23 B6
22 B5
21 B4
20 B3
19 NC
12
I9
13
14
15
16
17
18
鈥?/div>
Random logic
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Code converters
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Fault detectors
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Function generators
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Address mapping
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Multiplexing
I5 7
I6 8
I7 9
I8 10
NC 11
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
t
PD
(MAX)
15ns
12ns
15ns
12ns
ORDER CODE
PLUS173BN
PLUS173DN
PLUS173BA
PLUS173DA
DRAWING NUMBER
0410D
0410D
0401F
0401F
廬PAL
is a registered trademark of Advanced Micro Devices Corporation.
October 22, 1993
33
853鈥?298 11164
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Programmable logic arrays 18 】 42 】 10
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PAL devices
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PAL devices
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