TheTTL - Al Kossow's Bitsavers

TIBPALT19L8, TIBPALT19R4, TIBPALT19R6, TIBPALT19R8
HIGH·PERFORMANCE LATCHED·INPUT PAL CIRCUITS
programming parameters, T A
PARAMETER
Vee Verify-level supply voltage 4.5
VIH High-level input voltage 2
VIL Low-level input voltage
VOH High-level output voltage
VIHH Program-pulse input voltage 10.25
IIHH
Program-pulse input current
PO
PGM ENABLE, L/R
PI, PA
tw1 Program-pulse duration at PO or liD pins 10
tw2 Pulse duration at PGM VERIFY and INeLK 100
tsu Setup time 100
th Hold time 100·
td1 Delay time from Vee to 5 V to PGM VERIFYi 100
td2 Delay time from PGM VERI FYi to verification of output 200
td3 Delay time 100
Input voltage at pins 1 and 13 to open verify-protect (security) fuse 15.5
tw3
Input current to open verify-protect (security) fuse
Pulse duration to open verify-protect (security) fuse 20
Vee value during security fuse programming
Vee
MIN
NOM MAX
5.0 5.5
5.5
0.8
5.5
10.5 10.75
50
25
5
400
50
16 16.5
400
50
0 0.4
UNIT
V
V
V
V
V
mA
p's
ns
ns
ns
p's
ns
ns
V
mA
p's
V
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o
...J
Q)
:c
n:s
E
E
n:s
...
C)
...
o
c..
-C
(j)
u::
TEXAS ..
INSTRUMENTS
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