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CD40175BC Schematic ( PDF Datasheet ) - National Semiconductor

Teilenummer CD40175BC
Beschreibung Hex/Quad D Flip-Flop
Hersteller National Semiconductor
Logo National Semiconductor Logo 




Gesamt 6 Seiten
CD40175BC Datasheet, Funktion
February 1988
CD40174BM CD40174BC Hex D Flip-Flop
CD40175BM CD40175BC Quad D Flip-Flop
General Description
The CD40174B consists of six positive-edge triggered
D-type flip-flops the true outputs from each flip-flop are ex-
ternally available The CD40175B consists of four positive-
edge triggered D-type flip-flops both the true and comple-
ment outputs from each flip-flop are externally available
All flip-flops are controlled by a common clock and a com-
mon clear Information at the D inputs meeting the set-up
time requirements is transferred to the Q outputs on the
positive-going edge of the clock pulse The clearing opera-
tion enabled by a negative pulse at Clear input clears all Q
outputs to logical ‘‘0’’ and Qs (CD40175B only) to logical ‘‘1’’
All inputs are protected from static discharge by diode
clamps to VDD and VSS
Features
Y Wide supply voltage range
3V to 15V
Y High noise immunity
Y Low power TTL
compatibility
0 45 VDD (typ )
fan out of 2 driving 74L
or 1 driving 74 LS
Y Equivalent to MC14174B MC14175B
Y Equivalent to MM74C174 MM74C175
Connection Diagrams
CD40174B
Dual-In-Line Package
CD40175B
Dual-In-Line Package
Truth Table
Top View
TL F 5987 – 1
Order Number CD40174B or CD40175B
Top View
Inputs
Outputs
Clear
Clock
D
Q
Q
L
X
XL
H
H u HH L
H u LL H
H H X NC NC
H L X NC NC
H e High level
L e Low level
X e Irrelevant
u e Transition from low to high level
NC e No change
e Q for CD40175B only
TL F 5987 – 2
C1995 National Semiconductor Corporation TL F 5987
RRD-B30M105 Printed in U S A






CD40175BC Datasheet, Funktion
Physical Dimensions inches (millimeters) (Continued)
Molded Dual-In-Line Package (N)
Order Number CD40174BMN CD40174BCN CD40174BMN or CD40175BCN
NS Package Number N16E
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NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL
SEMICONDUCTOR CORPORATION As used herein
1 Life support devices or systems are devices or
systems which (a) are intended for surgical implant
into the body or (b) support or sustain life and whose
failure to perform when properly used in accordance
with instructions for use provided in the labeling can
be reasonably expected to result in a significant injury
to the user
2 A critical component is any component of a life
support device or system whose failure to perform can
be reasonably expected to cause the failure of the life
support device or system or to affect its safety or
effectiveness
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