74HCT377DB View Datasheet(PDF) - Philips Electronics
Part Name
Description
View to exact match
74HCT377DB Datasheet PDF : 7 Pages
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Philips Semiconductors
Octal D-type flip-flop with data enable;
positive-edge trigger
Product specification
74HC/HCT377
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see “74HC/HCT/HCU/HCMOS Logic Family Specifications”.
Output capability: standard
ICC category: MSI
Note to HCT types
The value of additional quiescent supply current (∆ICC) for a unit load of 1 is given in the family specifications.
To determine ∆ICC per input, multiply this value by the unit load coefficient shown in the table below.
INPUT
E
CP
Dn
UNIT LOAD COEFFICIENT
1.50
0.50
0.20
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; tr = tf = 6 ns; CL = 50 pF
SYMBOL
PARAMETER
tPHL/ tPLH
tTHL/ tTLH
propagation delay
CP to Qn
output transition time
Tamb (°C)
TEST CONDITIONS
74HCT
+25
−40 to +85
−40 to +125
UNIT
VCC
(V)
WAVEFORMS
min. typ. max. min. max. min. max.
17 32
40
48 ns 4.5 Fig.6
7 15
19
22 ns 4.5 Fig.6
tW
clock pulse width
HIGH or LOW
20 8
25
30
tsu
set-up time
Dn to CP
tsu
set-up time
E to CP
12 4
15
18
22 12
28
33
th
hold time
Dn to CP
th
hold time
E to CP
2 −4
2
2
3 −2
3
3
fmax
maximum clock pulse
27 48
22
18
frequency
ns 4.5 Fig.6
ns 4.5 Fig.7
ns 4.5 Fig.7
ns 4.5 Fig.7
ns 4.5 Fig.7
MHz 4.5 Fig.6
December 1990
6
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