TIBPAL22V10-20M_16 Datasheet, PDF (7/19 Pages) Texas Instruments – HIGH-PERFORMANCE IMPACT-X

Not Recommended For New Designs
TIBPAL22V10-20M
HIGH-PERFORMANCE IMPACT-X ™ PROGRAMMABLE ARRAY LOGIC CIRCUITS
SRPS012B − JUNE 1990 − REVISED APRIL 2010
R
1D
C1
1S
S1 = 0
S0 = 0
R
1D
C1
1S
S1 = 0
S0 = 1
REGISTER FEEDBACK, REGISTERED, ACTIVE-LOW OUTPUT
REGISTER FEEDBACK, REGISTERED, ACTIVE-HIGH OUTPUT
S1 = 1
S0 = 0
S1 = 1
S0 = 1
I/O FEEDBACK, COMBINATIONAL, ACTIVE-LOW OUTPUT
I/O FEEDBACK, COMBINATIONAL, ACTIVE-HIGH OUTPUT
MACROCELL FEEDBACK AND OUTPUT FUNCTION TABLE
FUSE SELECT
S1
S0
FEEDBACK AND OUTPUT CONFIGURATION
0
0
Register feedback
Registered
Active low
0
1
Register feedback
Registered
Active high
1
0 I/O feedback
Combinational Active low
1
1 I/O feedback
Combinational Active high
0 = unblown fuse, 1 = blown fuse
S1 and S0 are select-function fuses as shown in the output logic macrocell
diagram.
Figure 1. Resultant Macrocell Feedback and Output Logic After Programming
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