HD74HC190 Datasheet, PDF (7/13 Pages) Hitachi Semiconductor – Synchronous Up/Down Decade,4-bit Binary Counter(Single Clock Line)

HD74HC190, HD74HC191
Switching Characteristics
Item
Maximum clock
frequency
Propagation delay
time
Pulse width
Hold time
Setup time
Output rise/fall
time
Input capacitance
Symbol V_CC (V)
f_max
2.0
4.5
6.0
t_PLH, t_PHL 2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
t_w
2.0
4.5
6.0
t_h
2.0
4.5
6.0
t_su
2.0
4.5
6.0
t_TLH, t_THL 2.0
4.5
6.0
Cin
—
(C_L = 50 pF, Input t_r = t_f = 6 ns)
Ta = 25°C
Ta = –40 to +85°C
Min Typ Max Min Max Unit
Test Conditions
—— 5
—
4 MHz
— — 25
—
20
— — 29
—
24
— — 265 —
335 ns Load to Q
— 21 53
—
66
— — 45
—
56
— — 230 —
290 ns Data to Q
— 18 46
—
58
— — 39
—
49
— — 120 —
150 ns Clock to RC
— 14 24
—
30
— — 20
—
26
— — 190 —
240 ns Clock to Q
— 22 38
—
48
— — 32
—
41
— — 250 —
315 ns Clock to max/min
— 26 50
—
63
— — 43
—
54
— — 230 —
290 ns Down/up to RC
— 20 46
—
58
— — 39
—
49
— — 130 —
165 ns G to RC
— 14 26
—
33
— — 22
—
28
— — 190 —
240 ns Down/up to max/min
— 17 38
—
48
— — 32
—
41
80 — — 100
—
ns
16 8 —
20
—
14 – —
17
—
0 ——
0
—
ns
0 –6 —
0
—
0 ——
0
—
100 — — 125
—
ns
20 7 —
25
—
17 — —
21
—
— — 75
—
95
ns
— 5 15
—
19
— — 13
—
16
— 5 10
—
10
pF
Rev.3.00, Jan 31, 2006 page 7 of 12