Military Version
AC Electrical Characteristics
V
EE
= −4.2V to −5.7V, V
CC
= V
CCA
= GND
Symbol
t
PLH
t
PHL
t
PLH
t
PHL
t
TLH
t
THL
Parameter
Propagation Delay
Data to Output
Propagation Delay
Enable to Output
Transition Time
20% to 80%, 80% to
20%
0.30
2.00
0.30
1.90
0.30
2.00
ns
(Note 10)
0.50
2.40
0.60
2.30
0.60
2.70
ns
T
C
= −55˚C
Min
0.30
Max
2.00
T
C
= +25˚C
Min
0.30
Max
1.80
T
C
= +125˚C
Min
0.30
Max
2.30
ns
(Notes 7,
8, 10, 11)
Units
Conditions
Notes
Figures 1, 2
Note 7:
F100K 300 Series cold temperature testing is performed by temperature soaking (to guarantee junction temperature equals −55˚C), then testing immediately
after power-up. This provides “cold start” specs which can be considered a worst case condition at cold temperatures.
Note 8:
Screen tested 100% on each device at +25˚C, Subgroup A9.
Note 9:
Sample tested (Method 5005, Table I) on each manufactured lot at +25˚C, Subgroup A9, and at +125˚C and −55˚C temperatures, Subgroups A10 and A11.
Note 10:
Not tested at +25˚C, +125˚C, and −55˚C temperature (design characterization data).
Note 11:
The propagation delay specified is for single output switching. Delays may vary up to 150 ps with multiple outputs switching.
Test Circuitry
DS100297-5
Notes:
V
CC
, V
CCA
= +2V, V
EE
= −2.5V.
L1 and L2 = equal length 50Ω impedance lines.
R
T
= 50Ω terminator internal to scope.
Decoupling 0.1 µF from GND to V
CC
and V
EE
.
All unused outputs are loaded with 50Ω to GND.
C
L
= Fixture and stray capacitance
≤
3 pF.
Pin numbers shown are for flatpak; for DIP see logic symbol.
FIGURE 1. AC Test Circuit
3
www.national.com
PrintDate=1998/08/31 PrintTime=07:05:04 45028 ds100297 Rev. No. 1
cmserv
Proof
3
NSC [ NATIONAL SEMICONDUCTOR ]
