參數資料
型號: 74HCT107DB
廠商: NXP SEMICONDUCTORS
元件分類: 通用總線功能
英文描述: 8-Line To 3-Line Priority Encoders 16-SOIC -40 to 85
中文描述: HCT SERIES, DUAL NEGATIVE EDGE TRIGGERED J-K FLIP-FLOP, COMPLEMENTARY OUTPUT, PDSO14
文件頁數: 6/7頁
文件大?。?/td> 53K
代理商: 74HCT107DB
December 1990
6
Philips Semiconductors
Product specification
Dual JK flip-flop with reset; negative-edge trigger
74HC/HCT107
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
.
Output capability: standard
I
CC
category: flip-flops
Note to HCT types
The value of additional quiescent supply current (
I
CC
) for a unit load of 1 is given in the family specifications.
To determine
I
CC
per input, multiply this value by the unit load coefficient shown in the table below.
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t
f
= t
f
= 6 ns; C
L
= 50 pF
INPUT
UNIT LOAD COEFFICIENT
nK
nR
nCP, nJ
0.60
0.65
1.00
SYMBOL
PARAMETER
T
amb
(
°
C)
UNIT
TEST CONDITIONS
74HCT
V
CC
(V)
WAVEFORMS
+
25
40 to
+
85
40 to
+
125
min.
typ.
max.
min.
max.
min.
max.
t
PHL
/ t
PLH
propagation delay
nCP to nQ
propagation delay
nCP to nQ
propagation delay
nR to nQ, nQ
output transition time
clock pulse width
HIGH or LOW
reset pulse width
LOW
removal time
nR to nCP
set-up time
nJ, nK to nCP
hold time
nJ, nK to nCP
maximum clock pulse
frequency
19
36
45
54
ns
4.5
Fig.6
t
PHL
/ t
PLH
21
36
45
54
ns
4.5
Fig.6
t
PHL
/ t
PLH
20
38
48
57
ns
4.5
Fig.7
t
THL
/ t
TLH
7
15
19
22
ns
4.5
Fig.6
t
W
16
9
20
24
ns
4.5
Fig.6
t
W
20
11
25
30
ns
4.5
Fig.7
t
rem
14
8
18
21
ns
4.5
Fig.7
t
su
20
7
25
30
ns
4.5
Fig.6
t
h
5
2
5
5
ns
4.5
Fig.6
f
max
30
66
24
20
MHz
4.5
Fig.6
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