TheTTL - Al Kossow's Bitsavers

PAL 16LBA·2, PAL 16R4A·2, PAL 16R6A·2, PAL 16RBA·2
STANDARD HIGH·SPEED HALF·POWER PAL CIRCUITS
recommended operating conditions
MIN
M SUFFIX
C SUFFIX
TYP MAX MIN TYP MAX
fclock Clock frequency 0 16 0 18 MHz
I Clock high 28 25
tw Pulse duration, see Note 2
ns
I Clock low
28 25
tsu Setup time, input or feedback before ClKt 35 28 ns
th Hold time, input or feedback after ClK t 0 0 ns
NOTE 2: The total clock period of clock high and clock low must not exceed clock frequency, fclock. The minimum pulse durations specified
are only for clock high or clock low, but not for both simultaneously.
UNIT
electrical characteristics over recommended operating free·air temperature range
PARAMETER
TEST CONDITIONSt
M SUFFIX
C SUFFIX
MIN TYP* MAX MIN TYP* MAX
VIK VCC = MIN, II = -18 mA -1.5 -1.5
VOH VCC = MIN, 10H = MAX 2.4 3.2 2.4 3.3
VOL Vec = MIN, 10l = MAX 0.25 0.4 0.35 0.5
10ZH
10Zl
Outputs 20 20
Vec = MAX, Vo = 2.7 V
1/0 ports
100 100
Outputs -20 -20
VCC = MAX, Vo = 0.4 V
1/0 ports
-250 -250
II VCC = MAX, VI = 5.5 V 0.2 0.1
IIH Vce = MAX, VI = 2.7 V 25 20
I OE INPUT -0.2 -0.2
III Vec = MAX, VI = 0.4 V
1 All others -0.1 -0.1
10§ VCC = MAX, Vo = 2.25 V -30 -125 -30 -125
ICC
Vee = MAX,
VI = 0 V
Outputs Open
75 95 70 90
tFor conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
*AII typical values are at Vee = 5 V, TA = 25°C.
§The output conditions have been chosen to produce a current that closely aproximates one half of the true short-circuit output current, lOS.
switching characteristics over recommended supply voltage and operating free-air temperature ranges
(unless otherwise noted)
PARAMETER FROM TO TEST CONDITIONS
M SUFFIX
C SUFFIX
MIN TYP* MAX MIN TYP* MAX
UNIT
f max 16 25 18 25 MHz
tpd 1,1/0, 0,1/0 25 40 25 35 ns
tpd elKt Q
Rl = 500 fl, 11 35 11 25 ns
ten OE. Q el = 50 pF, 20 35 20 25 ns
tdis OEt Q See Note 3 11 30. 11 20 ns
ten 1,1/0 0,1/0 25 40 25 35 ns
tdis 1,1/0 0,1/0 25 35 25 30 ns
UNIT
V
V
V
p.A
p.A
mA
p.A
mA
mA
mA
(,)
'0,
o
...J
(1)
:c
CO
E
E
CO
....
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o ....
c..
I
"C
Q)
u::
tAli typical values are at Vee = 5 V, T A = 25°C.
NOTE 3: load circuits and voltage waveforms are shown in Section 1.
TEXAS •
INSTRUMENTS
POST OFFICE BOX 225012 • DALLAS. TEXAS 75265
3-13