74F169 Ver la hoja de datos (PDF) - Philips Electronics
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74F169 Datasheet PDF : 12 Pages
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Philips Semiconductors
4-bit up/down binary synchronous counter
Product specification
74F169
AC WAVEFORMS
For all waveforms, VM = 1.5V
The shaded areas indicate when the input is permitted to change for predictable output performance.
1/fMAX
CP
VM
VM
VM
tW(H)
tPLH
tW(L)
tPHL
VM
Qn
tPHL
VM
tPLH
TC
VM
VM
SF00791A
Waveform 1. Propagation Delay, Clock Input to Output,
Clock Pulse Width, and Maximum Clock Frequency
CET
TC
VM
VM
tPHL
tPLH
VM
VM
SF00792
Waveform 2. Propagation Delays CET Input to
Terminal Count Output
Dn
VM
VM
ts
th
U/D
TC
VM
VM
tPHL
tPLH
VM
VM
SF00793
Waveform 3. Propagation Delay U/D Input to
Terminal Count Output
PE
VM VM
VM
VM
ts(L)
th = 0
ts(H)
th = 0
CPn
VM
VM
SF00794
Waveform 4. Parallel Data and Parallel Enable
Setup and Hold Times
CET
CEP
CPn
VM
VM
ts(L)
VM
th(L)
VM VM
ts(H)
th(H)
VM
U/D
CPn
VM
VM
ts(L)
th(L)
VM
VM
VM
ts(H)
th(H)
VM
Qn
NO CHANGE
VM
COUNT
VM
NO
CHANGE
SF00795
Waveform 5. Count Enable Setup and Hold Times
Qn COUNT DOWN
COUNT UP
SF00796
Waveform 6. Up/Down Control Setup and Hold Times
1996 Jan 05
8
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