HD74HC221 Datasheet, PDF (6/8 Pages) Hitachi Semiconductor – Dual Monostable Multivibrators (with Schmitt Trigger Input)

HD74HC221
• Waveform-2
Input A
Input B
Output Q
Output Q
t_r
t_f
t_r
10 %
90 %
50 %
90 %
50 %
90 %
50 %
10 %
t_w (H)
t_f
t_r
t_w (L)
90 %
50 %
10 %
t_f
10 %
t_w (L)
90 % 90 %
50 %
50 %
t_w (H)
t_TLH
10 %
t_THL
10 %
90 %
50 %
90 %
50 %
t_w (out)
10 %
V_CC
GND
V_CC
GND
V_OH
V_OL
90 %
50 %
10 %
50 %
10 %
90 % ^VOH
V_OL
t_THL
t_TLH
Notes : 1. Input pulse : PRR ≤ 1 MHz, Zo = 50 Ω, t_r ≤ 6 ns, t_f ≤ 6 ns
2. The output are measured one at a time with one transition per measurement.
Rev.2.00 Jan 31, 2006 page 6 of 7