74HC5555 Datasheet, PDF (16/23 Pages) NXP Semiconductors – Programmable delay timer with oscillator

Philips Semiconductors
Programmable delay timer with oscillator
Product specification
74HC/HCT5555
AC WAVEFORMS
handbook, full pagewidth
B INPUT
90%
10%
t_W
VM ⁽¹⁾
A INPUT
GND
90%
10%
VM ⁽¹⁾
t_W
t _THL
t _TLH
Q OUTPUT
VM ⁽¹⁾
t _PHL
t _PLH
t_W
90%
10%
90%
Q OUTPUT
VM ⁽¹⁾
10%
t _TLH
t _THL
MGA653
(1) HC : V_M = 50%; V_I = GND to V_CC.
HCT: V_M = 1.3 V; V_I = GND to 3 V.
Fig.6 Waveforms showing the triggering of the delay timer by input A or B, the minimum pulse widths of the
trigger inputs A and B, the output pulse width and output transition times.
September 1993
16