HD74HC4520RPEL 查看數據表（PDF） - Renesas Electronics
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HD74HC4520RPEL Datasheet PDF : 9 Pages
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HD74HC4518, HD74HC4520
Switching Characteristics
Item
Symbol VCC (V)
Maximum clock
frequency
fmax
2.0
4.5
6.0
Propagation delay time tPLH
2.0
tPHL
4.5
6.0
tPLH
2.0
tPHL
4.5
6.0
tPLH
2.0
tPHL
4.5
6.0
Pulse width
tw
2.0
4.5
6.0
Removal time
trem
2.0
4.5
6.0
Output rise/fall time
tTLH
2.0
tTHL
4.5
6.0
Input capacitance
Cin
—
Ta = 25°C
Min Typ Max
—— 5
— — 27
— — 32
— — 190
— 22 38
— — 32
— — 200
— 22 40
— — 34
— — 190
— 17 38
— — 32
80 — —
16
7
—
14 — —
0 ——
0 –3 —
0 ——
— — 75
— — 15
— — 13
— 5 10
Ta = –40 to +85°C
Min
Max
—
4
—
21
—
25
—
240
—
48
—
41
—
250
—
50
—
43
—
240
—
48
—
41
100
—
20
—
17
—
0
—
0
—
0
—
—
95
—
19
—
16
—
10
(CL = 50 pF, Input tr = tf = 6 ns)
Unit
MHz
Test Conditions
ns Clock to Q
ns Reset to Q
ns Enable to Q
ns
ns Reset clock
ns
pF
Test Circuit
VCC
VCC
Input
Pulse Generator
Zout = 50 Ω
Input
Pulse Generator
Zout = 50 Ω
Clock
Q0
Enable
Q3
Reset
Output
Output
CL = 50 pF
CL = 50 pF
Note : 1. CL includes probe and jig capacitance.
Rev.2.00, Mar 30, 2006 page 5 of 8
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