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HD74LVC534 Datasheet, PDF (6/9 Pages) Hitachi Semiconductor – Octal D-type Flip Flops with 3-state Outputs
HD74LVC534
Test Circuit
VCC
Input
Pulse Generator
Zout = 50 Ω
Input
Pulse Generator
Zout = 50 Ω
VCC
Output
G
1Q to 8Q
CL =
500 Ω S1
450 Ω
OPEN
*1 See under table
GND
50 pF 50 Ω Scope
1D to 8D
CK
Symbol
tPLH / t PHL
tsu / t h / t w
tZH/ t HZ
tZL / t LZ
S1
Vcc=2.7V,
3.3±0.3V
Vcc=5.0±0.5V
OPEN OPEN
GND
6V
GND
2×Vcc
Note:
1. CL includes probe and jig capacitance.
Waveforms – 1
Input CK
Input D
Output Q
tr
tf
10 %
tr
90 % 90 %
Vref
10 %
tf
90 %
90 %
10 %
tPHL
10 %
Vref
Vref
tPLH
Vref
VIH
GND
VIH
GND
VOH
VOL
6