74F109 View Datasheet(PDF) - Philips Electronics
Part Name
Description
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74F109 Datasheet PDF : 10 Pages
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Philips Semiconductors
Postive J-K positive edge-triggered flip-flops
AC WAVEFORMS
For all waveforms, VM = 1.5V.
The shaded areas indicate when the input is permitted to change for predictable output performance.
Jn, Kn
CPn
Qn
Qn
VM
VM
tsu(L) th(L)
1/fmax
VM
VM
tw(H)
tPLH
VM
tsu(H)
tw(L)
VM
th(H)
VM
tPHL
VM
tPHL
VM
tPLH
VM
VM
SF00139
Waveform 1. Propagation Delay for Data to Output, Data Setup
Time and Hold Times, and Clock Width,and Maximum
Clock Frequency
tw(L)
SDn VM
VM
RDn
tPLH
tw(L)
VM
VM
tPHL
Qn
VM
tPHL
VM
tPLH
Qn
VM
VM
SF00050
Waveform 2. Propagation Delay for Set and Reset to Output,
Set and Reset Pulse Width
SDn or RDn
VM
trec
CPn
VM
SF00051
Waveform 3. Recovery Timer for Set or Reset to Clock
Product specification
74F109
October 23, 1990
5
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