Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

M54HC423 Datasheet(PDF) 4 Page - STMicroelectronics

Part # M54HC423
Description  DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR
Download  14 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M54HC423 Datasheet(HTML) 4 Page - STMicroelectronics

  M54HC423 Datasheet HTML 1Page - STMicroelectronics M54HC423 Datasheet HTML 2Page - STMicroelectronics M54HC423 Datasheet HTML 3Page - STMicroelectronics M54HC423 Datasheet HTML 4Page - STMicroelectronics M54HC423 Datasheet HTML 5Page - STMicroelectronics M54HC423 Datasheet HTML 6Page - STMicroelectronics M54HC423 Datasheet HTML 7Page - STMicroelectronics M54HC423 Datasheet HTML 8Page - STMicroelectronics M54HC423 Datasheet HTML 9Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 14 page
background image
FUNCTIONAL DESCRIPTION (continued)
RE-TRIGGERED OPERATION
When a second trigger pulse follows the first its
effect will depend on the state of the multivibrator. If
the capacitor Cx is being charged the voltage level
of R/C external falls to Vrefl again and Q remains
high i.e. the retrigger pulse arrives in a time shorter
than the period Rx
⋅ Cx seconds, the capacitor
charging time constant. If the second trigger pulse
is very close to the initial trigger pulse it is ineffective
; i.e. the second trigger must arrive in the capacitor
discharge cycle to be ineffective; Hence the
minimum time for a second trigger to be effective
depends on VCC and Cx.
RESET OPERATION
CL is normally high. If CL is low, the trigger is not
effective because Q output goes low and trigger
control flip-flop is reset.
Also transistor Op is turned on and Cx is charged
quicky to VCC. This means if CL input goes low, the
IC becomes waiting state both in operating and non
operating state.
TRUTH TABLE
INPUTS
OUTPUTS
NOTE
AB
CL
Q
Q
H
H
OUTPUT ENABLE
X
L
H
L
H
INHIBIT
H
X
H
L
H
INHIBIT
L
H
OUTPUT ENABLE
X
X
L
L
H
INHIBIT
X: Don’t Care Z: High Impedance
INPUT AND OUTPUT EQUIVALENT CIRCUIT
M54/M74HC423/423A
4/14


Similar Part No. - M54HC423

ManufacturerPart #DatasheetDescription
logo
STMicroelectronics
M54HC42 STMICROELECTRONICS-M54HC42 Datasheet
246Kb / 10P
   BCD TO DECIMAL DECODER
M54HC42F1R STMICROELECTRONICS-M54HC42F1R Datasheet
246Kb / 10P
   BCD TO DECIMAL DECODER
More results

Similar Description - M54HC423

ManufacturerPart #DatasheetDescription
logo
STMicroelectronics
M74HC123 STMICROELECTRONICS-M74HC123 Datasheet
503Kb / 12P
   DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR
logo
Toshiba Semiconductor
TC74HC423AP TOSHIBA-TC74HC423AP Datasheet
435Kb / 9P
   DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR
logo
Fairchild Semiconductor
MM74HC423A FAIRCHILD-MM74HC423A Datasheet
108Kb / 10P
   Dual Retriggerable Monostable Multivibrator
logo
Toshiba Semiconductor
TC74HC4538AP TOSHIBA-TC74HC4538AP Datasheet
477Kb / 10P
   DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATOR
logo
Fairchild Semiconductor
MM74HC123A FAIRCHILD-MM74HC123A_01 Datasheet
133Kb / 10P
   Dual Retriggerable Monostable Multivibrator
74VHC123A FAIRCHILD-74VHC123A_07 Datasheet
468Kb / 14P
   Dual Retriggerable Monostable Multivibrator
logo
Toshiba Semiconductor
TC74HC123AP TOSHIBA-TC74HC123AP_07 Datasheet
505Kb / 14P
   Dual Retriggerable Monostable Multivibrator
logo
National Semiconductor ...
MM54HC123A NSC-MM54HC123A Datasheet
198Kb / 6P
   Dual Retriggerable Monostable Multivibrator
logo
Microsemi Corporation
TSC347 MICROSEMI-TSC347 Datasheet
600Kb / 4P
   Dual Retriggerable Monostable Multivibrator
logo
ON Semiconductor
74VHC123A ONSEMI-74VHC123A Datasheet
467Kb / 16P
   Dual Retriggerable Monostable Multivibrator
May 2007 Rev. 1.2
logo
Fairchild Semiconductor
74VHC123ASJX FAIRCHILD-74VHC123ASJX Datasheet
469Kb / 14P
   Dual Retriggerable Monostable Multivibrator
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
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