HD74HC74_15 Datasheet, PDF (6/10 Pages) Renesas Technology Corp – Dual D-type Flip-Flops (with Preset and Clear)

HD74HC74
Switching Characteristics
Item
Hold time
Removal time
Pulse width
Output rise/fall
time
Input capacitance
Symbol V_CC (V)
2.0
t_h
4.5
6.0
2.0
t_rem
4.5
6.0
2.0
t_w
4.5
6.0
2.0
t_TLH, t_THL 4.5
6.0
Cin
—
Ta = 25°C
Ta = –40 to +85°C
Min Typ Max Min Max
5 ——
5
—
5
0—
5
—
5 –5 —
5
—
25 — —
31
—
5 ——
6
—
4 ——
5
—
80 — — 100
—
16 8 —
20
—
14 — —
17
—
— — 75
—
95
— 5 15
—
19
— — 13
—
16
— 5 10
—
10
(C_L = 50 pF, Input t_r = t_f = 6 ns)
Unit
Test Conditions
ns Clock to Data
ns Preset, Clear to Clock
ns Clock, Preset, Clear
ns
pF
Test Circuit
V_CC
V_CC
Input
Pulse generator
Zout = 50 Ω
Input
Pulse generator
Zout = 50 Ω
Output
Clock _Q
PR
C_L = 50 pF
D
Output
Clear Q
C_L = 50 pF
Note: C_L includes the probe and jig capacitance.
REJ03D0549-0300 Rev.3.00 Oct 27, 2008
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