HD74LS145 Datasheet, PDF (4/6 Pages) Hitachi Semiconductor – BCD-to-Decimal Decoders / Drivers(with 15V outputs)

HD74LS145
Testing Method
Test Circuit
4.5V
P.G.
Zout = 50Ω
Input
V_CC
0
1
A
2
3
B
4
C
5
6
D
7
8
9
Output
RL
CL
Waveform
t_TLH
t_THL
90%
90%
3V
Input
1.3 V
1.3 V
10%
10%
0V
t_PLH
t_PHL
In phase output
1.3 V
t_PHL
1.3 V
t_PLH
V_OH
V_OL
Out of phase output
1.3 V
V_OH
1.3 V
V_OL
Note: Input pulse; t_TLH ≤ 15 ns, t_THL ≤ 6 ns, PRR = 1 MHz, duty cycle 50%
Rev.3.00, Jul.13.2005, page 4 of 5