74HC5555 Datasheet, PDF (18/23 Pages) NXP Semiconductors – Programmable delay timer with oscillator

Philips Semiconductors
Programmable delay timer with oscillator
Product specification
74HC/HCT5555
handbook, full pagewidth
RS INPUT
Q OUTPUT
Q OUTPUT
(1) HC : V_M = 50%; V_I = GND to V_CC.
HCT: V_M = 1.3 V; V_I = GND to 3 V.
1/f max
1 _{2 VCC}
t_W
t _PHL
VM ⁽¹⁾
t _PLH
VM ⁽¹⁾
MGA651
Fig.8 Waveforms showing the clock (RS) to outputs (Q and Q) propagation delays, the clock pulse width and
the maximum clock frequency.
handbook, full pagewidth
RS INPUT
Q OUTPUT
Q OUTPUT
1/f max
VM ⁽¹⁾
t _PHL
VM ⁽¹⁾
t _PLH
VM ⁽¹⁾
MGA654
(1) HC : V_M = 50%; V_I = GND to V_CC.
HCT: V_M = 1.3 V; V_I = GND to 3 V.
Fig.9 Waveforms showing the clock (RS) to outputs (Q and Q) propagation delays, the clock pulse width and
the maximum clock frequency (Output waveforms are not synchronized with respect to the RS waveform).
September 1993
18