OBSOLETE - No Longer Available
TIBPAL20L8-7C, TIBPAL20R4-7C, TIBPAL20R6-7C, TIBPAL20R8-7C TIBPAL20L8-10M, TIBPAL20R4-10M...
OBSOLETE - No Longer Available
TIBPAL20L8-7C, TIBPAL20R4-7C, TIBPAL20R6-7C, TIBPAL20R8-7C TIBPAL20L8-10M, TIBPAL20R4-10M, TIBPAL20R6-10M, TIBPAL20R8-10M
HIGH-PERFORMANCE IMPACT-X ™ PAL® CIRCUITS SRPS005E − D3307, OCTOBER 1989 − REVISED DECEMBER 2010
High-Performance Operation:
fmax (no feedback) TIBPAL20R’ -7C Series . . . 100 MHz TIBPAL20R’ -10M Series . . . 62.5 MHz
fmax (internal feedback) TIBPAL20R’ -7C Series . . . 100 MHz TIBPAL20R’ -10M Series . . . 62.5 MHz
fmax (external feedback) TIBPAL20R’ -7C Series . . . 74 MHz TIBPAL20R’ -10M Series . . . 50 MHz
Propagation Delay TIBPAL20L8-7C Series . . . 7 ns Max TIBPAL20L8-10M Series . . . 10 ns Max
Functionally Equivalent, but Faster Than
Existing 24-Pin PLD Circuits
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 Both Plastic and
Ceramic Chip Carriers in Addition to Plastic and Ceramic DIPs
Security Fuse Prevents Duplication Dependable Texas Instruments Quality and
Reliability
DEVICE
PAL20L8 PAL20R4 PAL20R6 PAL20R8
I INPUTS
14 12 12 12
3-STATE O OUTPUTS
2 0 0 0
REGISTERED Q OUTPUTS
0 4 (3-state buffers) 6 (3-state buffers) 8 (3-state buffers)
I/O PORT
S 6 4 2 0
description
TIBPAL20L8’ C SUFFIX . . . JT OR NT PACKAGE
M SUFFIX . . . JT PACKAGE
(TOP VIEW)
I I I I I I I I I I I GND
1 2 3 4 5 6 7 8 9 10 11 12
24 VCC 23 I 22 O 21 I/O 20 I/O 19 I/O 18 I/O ...