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| HD74ALVCH16374 Datasheet, PDF (7/10 Pages) Hitachi Semiconductor – 16-bit D-type Flip Flops with 3-state Outputs | |||
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Test Circuit
HD74ALVCH16374
VCC
Input
Pulse Generator
Zout = 50 â¦
Input
VCC
1OE, 2OE
1Q1 to 2Q8
1D1 to 2D8
Output
CL =
50 pF
500 ⦠S1
450 â¦
50 ⦠Scope
OPEN
*1 See under table
GND
Pulse Generator
Zout = 50 â¦
1CK, 2CK
Note:
1. CL includes probe and jig capacitance.
Symbol Vcc=2.5±0.2V
tPLH / t PHL
tsu / t h / t w
OPEN
tZH/ t HZ
tZL / t LZ
GND
4.6 V
Vcc=2.7V,
3.3±0.3V
OPEN
GND
6.0 V
Waveforms â 1
Input CK
Input D
Output Q
tr
tf
10 %
tr
90 % 90 %
Vref
10 %
tf
90 %
90 %
10 %
tPLH
10 %
Vref
Vref
tPHL
Vref
VIH
GND
VIH
GND
VOH
VOL
7
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