54AC169DMQB. National Semiconductor, 54AC169DMQB. Datasheet

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54AC169DMQB.

Manufacturer Part Number
54AC169DMQB.
Description
Manufacturer
National Semiconductor
Datasheet

Specifications of 54AC169DMQB.

Lead Free Status / RoHS Status
Supplier Unconfirmed
© 1998 National Semiconductor Corporation
54AC169 • 54ACT169
4-Stage Synchronous Bidirectional Counter
General Description
The ’AC/’ACT169 is fully synchronous 4-stage up/down
counter. The ’AC/’ACT169 is a modulo-16 binary counter. It
features a preset capability for programmable operation,
carry lookahead for easy cascading and a U/D input to con-
trol the direction of counting. All state changes, whether in
counting
LOW-to-HIGH transition of the Clock.
Features
n I
Logic Symbols
FACT
CC
is a trademark of Fairchild Semiconductor Corporation.
reduced by 50%
or
parallel
IEEE/IEC
loading,
DS100276
are
DS100276-1
DS100276-2
initiated
by
the
n Synchronous counting and loading
n Built-In lookahead carry capability
n Presettable for programmable operation
n Outputs source/sink 24 mA
n ’ACT has TTL-compatible inputs
n Standard Microcircuit Drawing (SMD)
CEP
CET
CP
P
PE
U/D
Q
TC
Names
5962-91603
0
0
Pin
–P
–Q
3
3
Count Enable Parallel Input
Count Enable Trickle Input
Clock Pulse Input
Parallel Data Inputs
Parallel Enable Input
Up-Down Count Control Input
Flip-Flop Outputs
Terminal Count Output
Description
www.national.com
July 1998

Related parts for 54AC169DMQB.

54AC169DMQB. Summary of contents

Page 1

... CC Logic Symbols DS100276-1 IEEE/IEC DS100276-2 FACT ™ trademark of Fairchild Semiconductor Corporation. © 1998 National Semiconductor Corporation DS100276 n Synchronous counting and loading n Built-In lookahead carry capability n Presettable for programmable operation n Outputs source/sink ’ACT has TTL-compatible inputs n Standard Microcircuit Drawing (SMD) 5962-91603 ...

Page 2

Connection Diagrams Pin Assignment for DIP and Flatpak DS100276-3 Logic Diagram Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. Functional Description The ’AC/’ACT169 uses edge-triggered ...

Page 3

Functional Description (Continued) the TC signal is derived by decoding the flip-flop states, there exists the possibility of decoding spikes on TC. For this reason the use clock signal is not recommended (see logic equations below). ...

Page 4

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage ( Input Diode Current ( −0. 0. Input Voltage ( Output Diode Current ( −0. 0. Output Voltage ( Output Source or Sink Current ( Ground Current CC per Output Pin (I ...

Page 5

DC Characteristics for ’AC Family Devices Symbol Parameter I Minimum Dynamic OLD Output Current (Note 3) I OHD I Maximum Quiescent CC Supply Current Note 2: All outputs loaded; thresholds on input associated with output under test. Note 3: Maximum ...

Page 6

AC Electrical Characteristics Symbol Parameter f Maximum Clock max Frequency t Propagation Delay PLH (PE HIGH or LOW) t Propagation Delay PHL (PE HIGH or LOW) t Propagation Delay PLH CP to ...

Page 7

AC Operating Requirements Symbol Parameter t Hold Time, HIGH or LOW h CET Setup Time, s HIGH or LOW Hold Time, HIGH or LOW Setup Time, s HIGH ...

Page 8

AC Electrical Characteristics ± Note 10: Voltage Range 5.0 is 5.0V 0.5V AC Operating Requirements Symbol Parameter t Setup Time, s HIGH or LOW Hold Time, HIGH or LOW ...

Page 9

Physical Dimensions inches (millimeters) unless otherwise noted 20-Terminal Ceramic Leadless Chip Carrier (L) 16-Lead Ceramic Dual-In-Line Package (D) NS Package Number E20A NS Package Number J16A 9 www.national.com ...

Page 10

... National Semiconductor Asia Pacific Customer Fax: +49 (0) 1 80-530 85 86 Response Group Email: europe.support@nsc.com Tel: 65-2544466 Fax: 65-2504466 Tel: +49 (0) 1 80-532 78 32 Email: sea.support@nsc.com Tel: +49 (0) 1 80-534 16 80 National Semiconductor Japan Ltd. Tel: 81-3-5620-6175 Fax: 81-3-5620-6179 ...

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