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74HC377 Datasheet(PDF) 6 Page - NXP Semiconductors

Part No. 74HC377
Description  Octal D-type flip-flop with data enable; positive-edge trigger
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Maker  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
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74HC377 Datasheet(HTML) 6 Page - NXP Semiconductors

   
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December 1990
6
Philips Semiconductors
Product specification
Octal D-type flip-flop with data enable;
positive-edge trigger
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.
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; tr =tf = 6 ns; CL =50pF
INPUT
UNIT LOAD COEFFICIENT
E
CP
Dn
1.50
0.50
0.20
SYMBOL
PARAMETER
Tamb (°C)
UNIT
TEST CONDITIONS
74HCT
VCC
(V)
WAVEFORMS
+25
−40 to +85 −40 to +125
min.
typ.
max. min. max. min.
max.
tPHL/ tPLH
propagation delay
CP to Qn
17
32
40
48
ns
4.5
Fig.6
tTHL/ tTLH
output transition time
7
15
19
22
ns
4.5
Fig.6
tW
clock pulse width
HIGH or LOW
20
8
25
30
ns
4.5
Fig.6
tsu
set-up time
Dn to CP
12
4
15
18
ns
4.5
Fig.7
tsu
set-up time
E to CP
22
12
28
33
ns
4.5
Fig.7
th
hold time
Dn to CP
2
−4
2
2
ns
4.5
Fig.7
th
hold time
E to CP
3
−2
3
3
ns
4.5
Fig.7
fmax
maximum clock pulse
frequency
27
48
22
18
MHz
4.5
Fig.6


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