74F194 Просмотр технического описания (PDF) - NXP Semiconductors.
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74F194 Datasheet PDF : 10 Pages
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Philips Semiconductors
4-bit bidirectional universal shift register
Product specification
74F194
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
tw(H)
tPHL
Qn
VM
VM
tPLH
VM
SF00171
Waveform 1. Propagation Delay, Clock Input to Output,
Clock Pulse Width, and Maximum Clock Frequency
MR
VM
tw(L)
CP
tPHL
VM
tREC
VM
Qn
VM
SF00158
Waveform 2. Master Reset Pulse Width, Master Reset to
Output Delay, and Master Reset to Clock Recovery Time
Dn, DSR,
DSL
S0, S1
CP
VM VM
ts(H) th(H)
VM
VM VM
ts(L) th(L)
VM
Waveform 3. Setup and Hold Times
SF00172
TIMING DIAGRAM
Typical Clear, Load, Shift-Right, Shift-Left and Inhibit Sequence
CP
S0
S1
MR
SERIAL
DATA
DSR
INPUTS
DSL
D0
H
PARALLEL
D1
L
DATA
INPUTS
D2
H
D3
L
Q0
Q1
OUTPUTS
Q2
Q3
CLEAR
LOAD
SHIFT RIGHT
SHIFT LEFT
INHIBIT
CLEAR
SF00173
April 4, 1989
6
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