SN54HC164, SN74HC164
8-BIT PARALLEL-OUT SERIAL SHIFT REGISTERS
SCLS115D – DECEMBER 1982 – REVISED AUGUST 2003
PARAMETER MEASUREMENT INFORMATION
V
CC
High-Level
Pulse
50%
50%
50%
From Output
Under Test
Test
Point
0 V
t
w
C
= 50 pF
L
V
CC
Low-Level
Pulse
(see Note A)
50%
0 V
LOAD CIRCUIT
VOLTAGE WAVEFORMS
PULSE DURATIONS
V
CC
Input
50%
50%
0 V
V
t
t
PLH
PHL
90%
V
CC
OH
In-Phase
Output
Reference
Input
90%
t
50%
50%
10%
50%
10%
V
OL
0 V
V
t
r
f
f
t
t
h
su
t
t
PLH
PHL
90%
V
CC
OH
OL
Data
Input
90%
90%
90%
t
Out-of-Phase
Output
50%
10%
50%
10%
50%
10%
50%
10%
0 V
V
t
t
t
r
r
f
VOLTAGE WAVEFORMS
SETUP AND HOLD AND INPUT RISE AND FALL TIMES
VOLTAGE WAVEFORMS
PROPAGATION DELAY AND OUTPUT TRANSITION TIMES
NOTES: A.
B. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following
characteristics: PRR ≤ 1 MHz, Z = 50 Ω, t = 6 ns, t = 6 ns.
C includes probe and test-fixture capacitance.
L
O
r
f
C. For clock inputs, f
is measured when the input duty cycle is 50%.
max
D. The outputs are measured one at a time with one input transition per measurement.
E. and t are the same as t
t
.
pd
PLH
PHL
Figure 1. Load Circuit and Voltage Waveforms
6
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TI [ TEXAS INSTRUMENTS ]
