HD74LVCZ16245A
Test Circuit
VCC
VCC
G
Input
Pulse generator
Zout = 50 Ω
DIR
S1
A1
B1
Output
500 Ω S2
CL =
450 Ω
50 pF 50 Ω Scope
OPEN
*1 See
under table
GND
Symbol
tPLH / t PHL
tZH/ t HZ
tZL / t LZ
S2
Vcc=2.7V,
3.3±0.3V
Vcc=5.0±0.5V
OPEN
OPEN
GND
GND
6V
2×VCC
Notes: 1. C L includes probe and jig capacitance.
2. A2–B2 to A8–B8 are identical to above load circuit.
3. S1 : Input–Output change switch.
Rev.2.00 Aug. 20, 2004 page 5 of 7