HD74BC240A データシートの表示（PDF） - Hitachi -> Renesas Electronics
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HD74BC240A Datasheet PDF : 8 Pages
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Switching Test Method (CL = 50 pF)
Item
Propagation delay time
Output enable time
Output disable time
Input capacitanse
Output capacitance
Symbol
Ta = 25°C
VCC = 5.0 V
Min
Max
t PLH
3.0
6.0
t PHL
3.0
6.0
t ZH
3.0
8.0
t ZL
3.0
8.0
t HZ
3.0
7.0
t LZ
3.0
7.0
CIN
3.0(Typ)
CO
15.0(Typ)
HD74BC240A
Ta = –40 to 85°C
VCC = 5.0 V ±10%
Min
Max
3.0
7.0
3.0
7.0
3.0
10.0
3.0
10.0
3.0
9.0
3.0
9.0
—
—
Unit Test Conditions
ns See under figure
ns
ns
pF VIN = VCC or GND
pF VO = VCC or GND
Test Circuit
VCC
Input
Pulse Generator
Zout = 50 Ω
VCC
Output
G
1Y1
1A1
1A2
500 Ω
CL =
450 Ω
50 pF
50 Ω Scope
Output
1A3
1Y2
Same as above
load circuit
1A4
1Y3
Same as above
load circuit
1Y4
Same as above
load circuit
Notes:
1. CL includes probe and jig capacitance.
2. 2G, 2A1-2A4 to 2Y1-2Y4 are identical to above load circuit.
3. Open: tPLH, tPHL, tZH, tHZ
7 V: tZL, tLZ
*3
OPEN
7V
5
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