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SN74ALS574BDW

Part # SN74ALS574BDW
Description OCTAL D-TYPE FLIP-FLOP - Rail/Tube
Category IC
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

SN54ALS574B, SN54AS574, SN54AS575
SN74ALS574B, SN74ALS575A, SN74AS574, SN74AS575
OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS
SDAS165B – JUNE 1982 – REVISED JULY 1995
7
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
SERIES 54ALS/74ALS AND 54AS/74AS DEVICES
t
PHZ
t
PLZ
t
PHL
t
PLH
0.3 V
t
PZL
t
PZH
t
PLH
t
PHL
LOAD CIRCUIT
FOR 3-STATE OUTPUTS
From Output
Under Test
Test
Point
R1
S1
C
L
(see Note A)
7 V
1.3 V
1.3 V1.3 V
3.5 V
3.5 V
0.3 V
0.3 V
t
h
t
su
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
Timing
Input
Data
Input
1.3 V 1.3 V
3.5 V
3.5 V
0.3 V
0.3 V
High-Level
Pulse
Low-Level
Pulse
t
w
VOLTAGE WAVEFORMS
PULSE DURATIONS
Input
Out-of-Phase
Output
(see Note C)
1.3 V 1.3 V
1.3 V1.3 V
1.3 V 1.3 V
1.3 V1.3 V
1.3 V
1.3 V
3.5 V
3.5 V
0.3 V
0.3 V
V
OL
V
OH
V
OH
V
OL
Output
Control
(low-level
enabling)
Waveform 1
S1 Closed
(see Note B)
Waveform 2
S1 Open
(see Note B)
0 V
V
OH
V
OL
3.5 V
In-Phase
Output
0.3 V
1.3 V 1.3 V
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS
R2
V
CC
R
L
Test
Point
From Output
Under Test
C
L
(see Note A)
LOAD CIRCUIT
FOR OPEN-COLLECTOR OUTPUTS
LOAD CIRCUIT FOR
BI-STATE
TOTEM-POLE OUTPUTS
From Output
Under Test
Test
Point
C
L
(see Note A)
R
L
R
L
= R1 = R2
NOTES: A. C
L
includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. When measuring propagation delay items of 3-state outputs, switch S1 is open.
D. All input pulses have the following characteristics: PRR 1 MHz, t
r
= t
f
= 2 ns, duty cycle = 50%.
E. The outputs are measured one at a time with one transition per measurement.
Figure 1. Load Circuits and Voltage Waveforms
IMPORTANT NOTICE
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Copyright 1998, Texas Instruments Incorporated
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