|
HD74HC76 Datasheet, PDF (4/7 Pages) Hitachi Semiconductor – Dual J-K Flip-Flops (with Preset and Clear) | |||
|
◁ |
HD74HC76
Switching Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Item
Pulse width
Setup time
Hold time
Removal time
Output rise/fall
time
Input capacitance
Symbol VCC (V)
tw
2.0
4.5
6.0
tsu
2.0
4.5
6.0
th
2.0
4.5
6.0
trem
2.0
4.5
6.0
tTLH, tTHL 2.0
4.5
6.0
Cin
â
Ta = 25°C
Ta = â40 to +85°C
Min Typ Max Min Max Unit
Test Conditions
80 â â 100
â ns Preset, Clear, Clock
16 6 â
20
â
14 â â
17
â
100 â â 125
â ns J or K to Clock
20 4 â
25
â
17 â â
21
â
0 ââ
0
â ns Clock to J or K
0 â3 â
0
â
0 ââ
0
â
100 â â 125
â ns Preset or Clear to Clock
20 â2 â
25
â
17 â â
21
â
â â 75
â
95 ns
â 5 15
â
19
â â 13
â
16
â 5 10
â
10 pF
Test Circuit
VCC
VCC
Input
Pulse generator
Zout = 50 â¦
Input
Pulse generator
Zout = 50 â¦
Preset
Q
Clock
J
K
Q
Clear
Output
Output
CL = 50 pF
CL = 50 pF
Note: CL includes the probe and jig capacitance.
Rev.2.00, Oct 06, 2005 page 4 of 6
|
▷ |