TIBPAL20L8-25C, TIBPAL20R4-25C, TIBPAL20R6-25C, TIBPAL20R8-25C LOW-POWER HIGH-PERFORMANCE IMPACT ™ PAL® CIRCUITS
SRPS02...
TIBPAL20L8-25C, TIBPAL20R4-25C, TIBPAL20R6-25C, TIBPAL20R8-25C LOW-POWER HIGH-PERFORMANCE IMPACT ™ PAL® CIRCUITS
SRPS022 – D2920, MAY 1987 – REVISED MARCH 1992
Low-Power, High-Performance
Reduced ICC of 105 mA Max fmax:
Without Feedback . . . 33 MHz Min With Feedback . . . 25 MHz Min tpd . . . 25 ns Max
Direct Replacement for PAL20L8A,
PAL20R4A, PAL20R6A, PAL20L8A, with at Least 50% Reduction in Power
Preload Capability on Output Registers
Simplifies Testing
Power-Up Clear on Registered Devices (All
Register Outputs are Set Low, but
Voltage Levels at the Output Pins Go High)
Package Options Include Plastic Chip
Carriers in Addition to Plastic and Ceramic DIPs
Dependable Texas Instruments Quality and
Reliability
TIBPAL20L8’ JT OR NT PACKAGE
(TOP VIEW)
I1 I2 I3 I4 I5 I6 I7 I8 I9 I 10 I 11 GND 12
24 VCC 23 I 22 O 21 I/O 20 I/O 19 I/O 18 I/O 17 I/O 16 I/O 15 O 14 I 13 I
TIBPAL20L8’ FN PACKAGE
(TOP VIEW)
VCC
O
NC
I
I
I
I
DEVICE
I
3-STATE
INPUTS O OUTPUTS
REGISTERED Q OUTPUTS
I/O PORT
S
4 3 2 1 28 27 26
I5
25 I/O
PAL20L8
14
2
0
6
I6
24 I/O
PAL20R4
12
0
4 (3-state buffers)
4
I7
23 I/O
PAL20R6
12
PAL20R8
12
0
6 (3-state buffers)
2
0
8 (3-state buffers)
0
NC 8 I9
22 NC 21 I/O
description These programmable array logic devices feature
I 10
20 I/O
I 11
19 I/O
12 13 14 15 16 17 18
O
I
I
NC
GND
I
I
high speed and functional equivalency when
compared with currently available devices. These
IMPACT™ circuits combine ...
