Datenblatt-Suchmaschine für elektronische Bauteile
  German  ▼
ALLDATASHEETDE.COM

X  

54LS168DMQB Datenblatt(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Teilenummer 54LS168DMQB
Bauteilbeschribung  54LS168 Synchronous Bi-Directional BCD Decade Counter
Download  6 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Hersteller  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

54LS168DMQB Datenblatt(HTML) 4 Page - National Semiconductor (TI)

  54LS168DMQB Datasheet HTML 1Page - National Semiconductor (TI) 54LS168DMQB Datasheet HTML 2Page - National Semiconductor (TI) 54LS168DMQB Datasheet HTML 3Page - National Semiconductor (TI) 54LS168DMQB Datasheet HTML 4Page - National Semiconductor (TI) 54LS168DMQB Datasheet HTML 5Page - National Semiconductor (TI) 54LS168DMQB Datasheet HTML 6Page - National Semiconductor (TI)  
Zoom Inzoom in Zoom Outzoom out
 4 / 6 page
background image
Functional Description
The ’LS168 uses edge-triggered D-type flip-flops and has
no constraints on changing the control or data input signals
in either state of the Clock The only requirement is that the
various inputs attain the desired state at least a setup time
before the rising edge of the clock and remain valid for the
recommended hold time thereafter The parallel load opera-
tion takes precedence over the other operations as indicat-
ed in the Mode Select Table When PE is LOW the data on
the P0 – P3 inputs enters the flip-flops on the next rising
edge of the Clock In order for counting to occur both CEP
and CET must be LOW and PE must be HIGH The UD
input then determines the direction of counting The Termi-
nal Count (TC) output is normally HIGH and goes LOW
provided that CET is LOW when a counter reaches zero in
the COUNT DOWN mode or reaches 9 in the COUNT UP
mode The TC output state is not a function of the Count
Enable Parallel (CEP) input level The TC output of the
’LS168 decade counter can also be LOW in the illegal
states 11 13 and 15 which can occur when power is turned
on or via parallel loading If an illegal state occurs the
’LS168 will return to the legitimate sequence within two
counts Since 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 of TC as a clock signal is not
recommended (see logic equation below)
1 Count Enable e CEP
 CET  PE
2 Up TC e Q0
 Q3  (UD)  CET
3 Down TC e Q0
 Q1  Q2  Q3  (UD)  CET
’LS168 Mode Select Table
PE
CEP
CET
UD
Action on Rising Clock Edge
L
X
X
X
Load (Pn
xQn)
H
L
L
H
Count Up (Increment)
H
L
L
L
Count Down (Decrement)
H
H
X
X
No Change (Hold)
H
X
H
X
No Change (Hold)
H e HIGH Voltage Level
L e LOW Voltage Level
X e Immaterial
State Diagram
TLF10207 – 3
Logic Diagram
TLF10207 – 4
4


Ähnliche Teilenummer - 54LS168DMQB

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
National Semiconductor ...
54LS160A NSC-54LS160A Datasheet
173Kb / 8P
   Synchronous Presettable BCD Decade Counters
54LS160ADMQB NSC-54LS160ADMQB Datasheet
173Kb / 8P
   Synchronous Presettable BCD Decade Counters
54LS160AFMQB NSC-54LS160AFMQB Datasheet
173Kb / 8P
   Synchronous Presettable BCD Decade Counters
54LS160ALMQB NSC-54LS160ALMQB Datasheet
173Kb / 8P
   Synchronous Presettable BCD Decade Counters
54LS161 NSC-54LS161 Datasheet
210Kb / 12P
   Synchronous 4-Bit Binary Counters
More results

Ähnliche Beschreibung - 54LS168DMQB

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
Fairchild Semiconductor
74F162A FAIRCHILD-74F162A Datasheet
70Kb / 7P
   Synchronous Presettable BCD Decade Counter
logo
Motorola, Inc
MC74F160A MOTOROLA-MC74F160A Datasheet
103Kb / 4P
   SYNCHRONOUS PRESETTABLE BCD DECADE COUNTER
logo
Fairchild Semiconductor
74F160A FAIRCHILD-74F160A Datasheet
96Kb / 8P
   Synchronous Presettable BCD Decade Counter
logo
NXP Semiconductors
74AC11160 PHILIPS-74AC11160 Datasheet
271Kb / 10P
   SYNCHRONOUS PRESETTABLE SYNCHRONOUS BCD DECADE COUNTER
October 17 1990
logo
Motorola, Inc
MC74AC160 MOTOROLA-MC74AC160 Datasheet
326Kb / 14P
   Synchronous Presettable BCD Decade Counter
logo
ON Semiconductor
SN54-74LS168 ONSEMI-SN54-74LS168 Datasheet
117Kb / 6P
   BCD DECADE/MODULO 16 BINARY SYNCHRONOUS BI-DIRECTIONAL COUNTERS
logo
Motorola, Inc
SN54LS168 MOTOROLA-SN54LS168 Datasheet
272Kb / 8P
   BCD DECADE/MODULO 16 BINARY SYNCHRONOUS BI-DIRECTIONAL COUNTERS
logo
NXP Semiconductors
74HC162 PHILIPS-74HC162 Datasheet
83Kb / 11P
   Presettable synchronous BCD decade counter; synchronous reset
December 1990
logo
Renesas Technology Corp
HCS160MS RENESAS-HCS160MS Datasheet
337Kb / 9P
   Radiation Hardened BCD Decade Synchronous Counter
September 1995
logo
Intersil Corporation
HCS160MS INTERSIL-HCS160MS Datasheet
120Kb / 9P
   Radiation Hardened BCD Decade Synchronous Counter
September 1995
More results


Html Pages

1 2 3 4 5 6


Datenblatt Download

Go To PDF Page


Link URL




Privatsphäre und Datenschutz
ALLDATASHEETDE.COM
War ALLDATASHEET hilfreich?  [ DONATE ] 

Über Alldatasheet   |   Werbung   |   Kontakt   |   Privatsphäre und Datenschutz   |   Linktausch   |   Hersteller
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com