MC1455: Timer Circuit

Datasheet: Timers
Rev. 10 (217.0kB)
Product Overview
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Product Change Notification
The MC1455 monolithic timer circuit is a highly stable controller capable of producing accurate time delays or oscillation. Additional terminals are provided for triggering or resetting if desired. In the time delay mode, time is precisely controlled by one external resistor and capacitor. For a stable operation as an oscillator, the free-running frequency and the duty cycle are both accurately controlled with two external resistors and one capacitor. The circuit may be triggered and reset on falling waveforms, and the output structure can source or sink up to 200 mA or drive TTL circuits.
Features
 
  • Direct Replacement for NE555 Timers
  • Timing from Microseconds through Hours
  • Operates in Both Astable and Monostable Modes
  • Adjustable Duty Cycle
  • High Current Output Can Source or Sink 200 mA
  • Output Can Drive TTL
  • Temperature Stability of 0.005% per °C
  • Normally ON or Normally OFF Output
  • Pb-Free Packages are Available
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (2)
Availability & Samples
Specifications
Case Outlines
Interactive Block Diagram
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
MC1455DG Obsolete
Pb-free
Halide free
MC1455 SOIC-8 751-07 1 260 Tube 98  
MC1455DR2G Active
Pb-free
Halide free
MC1455 SOIC-8 751-07 1 260 Tape and Reel 2500 $0.148
MC1455P1G Obsolete 
Pb-free
Halide free
MC1455 PDIP-8 626-05 NA Tube 50  
MC1455D Consult Sales Office
MC1455 SOIC-8 751-07 1 235 Tube 98  
MC1455DR2 Obsolete 
MC1455 SOIC-8 751-07 1 235 Tape and Reel 2500  
MC1455P1 Obsolete 
MC1455 PDIP-8 626-05 NA Tube 50  
Market Leadtime (weeks) : Contact Factory
Avnet   (2020-08-19) : >1K
FutureElectronics   (2020-08-19) : <100
Market Leadtime (weeks) : Contact Factory
FutureElectronics   (2020-08-19) : >1K
PandS   (2020-09-14) : >1K
Avnet   (2020-08-19) : >1K
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
Type
VCC Min (V)
VCC Max (V)
tpd Max (ns)
PD Max (W)
IO Max (mA)
Package Type
MC1455DR2G  
 $0.148 
Pb
H
 Active   
Timer
4.5
16
100
0.625
200
SOIC-8
Case Outlines
751-07    626-05   
Packages
MC1455: Timer Circuit
Application
Diagram - Block
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