HD74HC194 Datasheet, PDF (6/8 Pages) Hitachi Semiconductor – 4-bit Bidirectional Universal Shift Register

HD74HC194
AC Characteristics (C_L = 50 pF, Input t_r = t_f = 6 ns)
Ta = 25°C
Ta = –40 to
+85°C
Item
Maximum clock
frequency
Symbol
f _max
V_CC (V)
2.0
4.5
Min Typ Max Min
——6 —
— — 30 —
Max Unit
5
ns
24
6.0
— — 35 — 28
Propagation delay t_PHL
time
2.0
— — 140 — 175 ns
4.5
— 12 28 — 35
6.0
— — 24 — 30
t _PLH
2.0
— — 140 — 175 ns
4.5
— 12 28 — 35
6.0
— — 24 — 30
t _PHL
2.0
— — 150 — 190 ns
4.5
— 13 30 — 38
6.0
— — 26 — 33
Pulse width
t_w
2.0
80 — — 100 — ns
4.5
16 6 — 20 —
6.0
14 — — 17 —
Setup time
t _su
2.0
100 — — 125 — ns
4.5
20 7 — 25 —
6.0
17 — — 21 —
2.0
150 — — 187 — ns
4.5
30 17 — 37 —
6.0
25 — — 31 —
Hold time
t_h
2.0
0 —— 0
— ns
4.5
0 –4 — 0
—
6.0
0 —— 0
—
Removal time
t _rem
2.0
25 — — 31 — ns
4.5
5 1 —6
—
6.0
4 —— 5
—
Output rise/fall
t _TLH
time
t _THL
2.0
— — 75 — 95 ns
4.5
— 5 15 — 19
6.0
— — 13 — 16
Input capacitance Cin
—
— 5 10 — 10 pF
Test Conditions
Clock to Q
Clear to Q
Clock or Clear
A, B, C or D to Clock
Mode controls to Clock
Any input
Clear inactive to Clock
6