HD151012 Datasheet, PDF (7/16 Pages) Hitachi Semiconductor – 8-bit Binary Programmable Counter with Synchronous Preset Enable

Test Circuit
V_CC
Input
Pulse generator
Zout = 50 Ω
Input
Pulse generator
Zout = 50 Ω
V_CC
J0
J1
Q
J7
CLK
CLK
SPE
PR
CLR
HD151012
Output
C_L
Note:
1. C_L includes probe and jig capacitance.
Waveforms – 1
CLK
CLK
Q
6 ns
10 %
tw
90 % 90 %
50 % 50 %
tw
6 ns
10 %
t_PLH
10 %
90 %
50 %
t_TLH
t_PHL
90 %
50 %
10 %
t_THL
V_CC
GND
V_OH
V_OL
7