74F597 Просмотр технического описания (PDF) - Philips Electronics
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74F597 Datasheet PDF : 12 Pages
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Philips Semiconductors
8-bit shift register with input storage registers
Product specification
74F597
AC WAVEFORMS
For all waveforms, VM = 1.5V.
The shaded areas indicate when the input is permitted to change for predictable output performance.
STCP,
SHCP,
SHLD
SHRST
1/fMAX
VM
tw(H)
tPHL
tw(L)
VM
tPLH
SHRST
SHCP
VM
tPHL
VM
trec
VM
QS
VM
VM
Qs
VM
SF00371
Waveform 1. Propagation Delay, Clock Input to Output,
Clock Pulse Widths, and Maximum Clock Frequency, Shift
Register Reset and Load Inputs to Serial Data Output
SF01112
Waveform 2. Propagation Delay, Shift Register Reset and Load
Inputs to Serial Data Output, Shift Register Reset and Load
Inputs to Shift Register Clock Pulse Input Recovery Time
Dn, Ds
SHCP,
SHLD
SHCP,
STCP,
SHLD
VM
ts(H)
VM
th(H)
VM
VM
ts(L)
VM
th(L)
VM
Waveform 3. Setup and Hold Times
SF01113
STCP
SHLD,
SHCP
VM
VM
ts(H)
th(L)
VM
VM
Waveform 4. Setup and Hold Time
SF01114
TEST CIRCUIT AND WAVEFORMS
VIN
PULSE
GENERATOR
VCC
VOUT
D.U.T.
NEGATIVE
PULSE
90%
tw
VM
10%
tTHL (tf )
VM
10%
tTLH (tr )
90%
AMP (V)
0V
RT
CL RL
Test Circuit for Totem-Pole Outputs
POSITIVE
PULSE
10%
tTLH (tr )
90%
VM
tw
tTHL (tf )
90%
VM
AMP (V)
10%
0V
DEFINITIONS:
RL = Load resistor;
see AC ELECTRICAL CHARACTERISTICS for value.
CL = Load capacitance includes jig and probe capacitance;
see AC ELECTRICAL CHARACTERISTICS for value.
RT = Termination resistance should be equal to ZOUT of
pulse generators.
Input Pulse Definition
family
74F
INPUT PULSE REQUIREMENTS
amplitude VM rep. rate
tw
tTLH
3.0V 1.5V 1MHz 500ns 2.5ns
tTHL
2.5ns
SF00006
1991 Sep 13
8
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