74HC27 Philips, 74HC27 Datasheet - Page 2

• Manufacturer Part Number: 74HC27
• Description: Triple 3-input NOR gate
• Manufacturer: Philips

Philips Semiconductors
FEATURES
QUICK REFERENCE DATA
GND = 0 V; T
Notes
1. C
2. For HC the condition is V
ORDERING INFORMATION
See
December 1990
SYMBOL
t
C
C
PHL
Output capability: standard
I
Triple 3-input NOR gate
I
PD
CC
f
f
C
V
For HCT the condition is V
i
o
“74HC/HCT/HCU/HCMOS Logic Package Information”
/ t
CC
PD
= input frequency in MHz
L
category: SSI
= output frequency in MHz
(C
PLH
= output load capacitance in pF
P
L
= supply voltage in V
is used to determine the dynamic power dissipation (P
D
= C
V
CC
amb
PD
2
PARAMETER
propagation delay nA, nB, nC to nY
input capacitance
power dissipation capacitance per gate
= 25 C; t
V
f
o
CC
) = sum of outputs
2
f
r
i
= t
I
= GND to V
I
f
= GND to V
= 6 ns
(C
L
V
CC
2
CC
CC
f
O
) where:
1.5 V
2
.
C
notes 1 and 2
GENERAL DESCRIPTION
The 74HC/HCT27 are high-speed Si-gate CMOS devices
and are pin compatible with low power Schottky TTL
(LSTTL). They are specified in compliance with JEDEC
standard no. 7A.
The 74HC/HCT27 provide the 3-input NOR function.
L
D
= 15 pF; V
in W):
CONDITIONS
CC
= 5 V
8
3.5
24
HC
TYPICAL
Product specification
74HC/HCT27
10
3.5
30
HCT
ns
pF
pF
UNIT