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HD74HC273_15 Datasheet, PDF (6/10 Pages) Renesas Technology Corp – Octal D-type Flip-Flops (with Clear)
HD74HC273
Switching Characteristics
Item
Maximum clock
frequency
Propagation delay
time
Setup time
Hold time
Removal time
Pulse width
Output rise/fall
time
Input capacitance
Symbol VCC (V)
2.0
fmax
4.5
6.0
2.0
tPHL
4.5
6.0
2.0
tPLH
4.5
6.0
2.0
tPHL
4.5
6.0
2.0
tsu
4.5
6.0
2.0
th
4.5
6.0
2.0
trem
4.5
6.0
2.0
tw
4.5
6.0
2.0
tTLH
4.5
tTHL
6.0
Cin
—
Ta = 25°C
Min Typ Max
—— 6
— — 30
— — 35
— — 145
— 18 29
— — 25
— — 145
— 18 29
— — 25
— — 145
— 15 29
— — 25
100 — —
20 2 —
17 — —
5 ——
5
0—
5 ——
100 — —
20 –1 —
17 — —
80 — —
16 8 —
14 — —
— — 75
— 5 15
— — 13
— 5 10
Ta = –40 to +85°C
Min
Max
—
5
—
24
—
28
—
180
—
36
—
31
—
180
—
36
—
31
—
180
—
36
—
31
125
—
25
—
21
—
5
—
5
—
5
—
125
—
25
—
21
—
100
—
20
—
17
—
—
95
—
19
—
16
—
10
(CL = 50 pF, Input tr = tf = 6 ns)
Unit
Test Conditions
MHz
ns Clock to Q
ns
ns Clear to Q
ns Data to clock
ns Clock to data
ns Clear to clock
ns Clock, clear
ns
pF
Test Circuit
VCC
VCC
Input
Pulse Generator
Zout = 50 Ω
Input
Pulse Generator
Zout = 50 Ω
Clear
Clock
D
Output
Q
CL = 50 pF
Note : 1. CL includes probe and jig capacitance.
REJ03D0604-0300 Rev.3.00 Mar 25, 2009
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