The 74ALS175 is a quad, edge-triggered D-type flip-flops with
individual D inputs and both Q and Q
clock (CP) and master reset (MR
flip-flops simultaneously.
The register is fully edge-triggered. The state of each D input, one
setup time before the Low-to-High clock transition is transferred to
the corresponding flip-flop’s Q output.
All Q outputs will be forced Low independent of clock or data inputs
by a Low voltage level on the MR
applications where both true and complement outputs are required,
and the clock and master reset are common to all storage elements.
NOTE: One (1.0) ALS unit load is defined as: 20µA in the High state and 0.1mA in the Low state.
LOGIC SYMBOL
9
1
VCC = Pin 16
GND = Pin 8
45 12 13
D0 D1 D2 D3
CP
MR
Q0 Q0 Q1 Q1 Q2 Q2 Q3 Q3
2 3 7 6 10 11 15 14
SF00719
IEC/IEEE SYMBOL
74ALS (U.L.)
HIGH/LOW
1
9
4
5
12
13
R
C1
1D
LOAD VALUE
HIGH/LOW
2
3
7
6
10
11
15
14
SF00720
1991 Feb 08853–1024 01670
2
Page 3
Philips SemiconductorsProduct specification
SYMBOL
PARAMETER
UNIT
74ALS175Quad D flip-flop
LOGIC DIAGRAM
= Pin 16
V
CC
GND = Pin 8
CP
MR
D0
9
1
4
DQ
CP
RD
D1
5
DQ
CP
RD
326111014157
Q
0Q0Q1Q1Q2Q2Q3Q3
D2
12
DQ
CP
RD
D3
13
DQ
FUNCTION TABLE
INPUTSOUTPUTS
MRCPDQ
n
Q
n
LXXLHReset (clear)
H↑hHLLoad “1”
H↑ILHLoad “0”
NOTES:
H = High-voltage level
h = High state must be present one setup time before the Low-to-High clock transition
L = Low-voltage level
l= Low state must be present one setup time before the Low-to-High clock transition
X = Don’t care
↑ = Low-to-High clock transition
ABSOLUTE MAXIMUM RATINGS
(Operation beyond the limit set forth in this table may impair the useful life of the device.
Unless otherwise noted these limits are over the operating free air temperature range.)
SYMBOL
V
CC
V
IN
I
IN
V
OUT
I
OUT
T
amb
T
stg
Supply voltage–0.5 to +7.0V
Input voltage–0.5 to +7.0V
Input current–30 to +5mA
Voltage applied to output in High output state–0.5 to V
Current applied to output in Low output state16mA
Operating free-air temperature range0 to +70°C
Storage temperature range–65 to +150°C
SO16:plastic small outline package; 16 leads; body width 3.9 mmSOT109-1
1991 Feb 08
7
Page 8
Philips SemiconductorsProduct specification
74ALS175Quad D flip–flop
DEFINITIONS
Data Sheet IdentificationProduct StatusDefinition
Objective Specification
Preliminary Specification
Product Specification
Formative or in Design
Preproduction Product
Full Production
Philips Semiconductors and Philips Electronics North America Corporation reserve the right to make changes, without notice, in the products,
including circuits, standard cells, and/or software, described or contained herein in order to improve design and/or performance. Philips
Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright,
or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask
work right infringement, unless otherwise specified. Applications that are described herein for any of these products are for illustrative purposes
only. Philips Semiconductors makes no representation or warranty that such applications will be suitable for the specified use without further testing
or modification.
LIFE SUPPORT APPLICA TIONS
Philips Semiconductors and Philips Electronics North America Corporation Products are not designed for use in life support appliances, devices,
or systems where malfunction of a Philips Semiconductors and Philips Electronics North America Corporation Product can reasonably be expected
to result in a personal injury. Philips Semiconductors and Philips Electronics North America Corporation customers using or selling Philips
Semiconductors and Philips Electronics North America Corporation Products for use in such applications do so at their own risk and agree to fully
indemnify Philips Semiconductors and Philips Electronics North America Corporation for any damages resulting from such improper use or sale.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
This data sheet contains the design target or goal specifications for product development. Specifications
may change in any manner without notice.
This data sheet contains preliminary data, and supplementary data will be published at a later date. Philips
Semiconductors reserves the right to make changes at any time without notice in order to improve design
and supply the best possible product.
This data sheet contains Final Specifications. Philips Semiconductors reserves the right to make changes
at any time without notice, in order to improve design and supply the best possible product.
Copyright Philips Electronics North America Corporation 1997
All rights reserved. Printed in U.S.A.
1991 Feb 08
8
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