74F323 Просмотр технического описания (PDF) - Philips Electronics
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производитель
74F323
Philips Electronics
74F323 Datasheet PDF : 7 Pages
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Philips Semiconductors
8-bit universal shift/storage register with synchronous
reset and common I/O pins (3-State)
Product specification
74F323
AC WAVEFORMS
For all waveforms, VM = 1.5V
The shaded areas indicate when the input is permitted to change for predictable output performance.
CP
Q0, Q7, I/On
1/fMAX
VM
tW(H)
tPHL
VM
tW(L)
VM
tPLH
VM
SF00884
Waveform 1. Propagation Delay, Clock Input to Output,
Clock Pulse Width, and Maximum Clock Frequency
S0, S1,
DSL, DSR,
I/On, SR
CP
VM VM
ts(H) th(H)
VM
VM VM
ts(L)
th(L)
VM
SF00885
Waveform 2. Data, Select and Reset Setup and Hold Times
Sn, OEn
I/On
VM
tPZH
VM
tPHZ
VM
VOH -0.3V
0V
SF00886
Waveform 3. 3-State Output Enable Time to High Level
and Output Disable Time from High Level
TEST CIRCUIT AND WAVEFORM
Sn, OEn
VM
VM
tPZL
tPLZ
I/On
VM
VOL +0.3V
SF00887
Waveform 4. 3-State Output Enable Time to Low Level and
Output Disable Time from Low Level
VCC
VIN
PULSE
GENERATOR
VOUT
RL
D.U.T.
RT
CL RL
Test Circuit for 3-State Outputs
SWITCH POSITION
TEST
tPLZ
tPZL
All other
SWITCH
closed
closed
open
7.0V
90%
NEGATIVE
PULSE
POSITIVE
PULSE
10%
tw
VM
10%
tTHL (tf )
VM
10%
tTLH (tr )
tTLH (tr )
90%
VM
tw
tTHL (tf )
90%
VM
Input Pulse Definition
90%
AMP (V)
0V
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 REQUIREMENTS
family
amplitude VM rep. rate
tw
tTLH
74F
3.0V 1.5V 1MHz 500ns 2.5ns
tTHL
2.5ns
SF00777
1990 Mar 01
7
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