Data Sheet

©1992 Fairchild Semiconductor Corporation www.fairchildsemi.com
74VHC32 Rev. 1.3.0 5
74VHC32 — Quad 2-Input OR Gate
AC Electrical Characteristics
Note:
3. C
PD
is defined as the value of the internal equivalent capacitance which is calculated from the operating
current consumption without load. Average operating current can be obtained by the equation:
I
CC
(opr.) = C
PD
• V
CC
• f
IN
+ I
CC
/ 4 (per gate).
Symbol Parameter V
CC
(V) Conditions
T
A
= 25°C
T
A
= –40°C
to +85°C
UnitsMin. Typ. Max. Min. Max.
t
PHL
, t
PLH
Propagation Delay 3.3 ± 0.3 C
L
= 15pF 5.5 7.9 1.0 9.5 ns
C
L
= 50pF 8.0 11.4 1.0 13.0
5.0 ± 0.5 C
L
= 15pF 3.8 5.5 1.0 6.5 ns
C
L
= 50pF 5.3 7.5 1.0 8.5
C
IN
Input Capacitance V
CC
= Open 4 10 10 pF
C
PD
Power Dissipation
Capacitance
(3)
14 pF