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MC1455DR2 from ON,ON Semiconductor

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MC1455DR2

Manufacturer: ON, MOT, MOTORO

Timing Circuit

Partnumber Manufacturer Quantity Availability
MC1455DR2 ON, MOT, MOTORO 9020 In Stock

Description and Introduction

Timing Circuit The MC1455DR2 is a timer IC manufactured by Motorola (now part of ON Semiconductor). Below are its specifications, descriptions, and features based on factual information:  

### **Specifications:**  
- **Manufacturer:** Motorola (now ON Semiconductor)  
- **Part Number:** MC1455DR2  
- **Type:** Precision Timer (Analog Timer IC)  
- **Package:** SOIC-8  
- **Operating Voltage Range:** 4.5V to 16V  
- **Operating Temperature Range:** -55°C to +125°C (Military Grade)  
- **Output Current (Sink/Source):** Up to 200mA  
- **Timing Range:** Microseconds to hours (adjustable via external components)  
- **Trigger Voltage:** Typically 1/3 of VCC  
- **Threshold Voltage:** Typically 2/3 of VCC  
- **Reset Voltage:** ≤ 0.4V (active low)  
- **Low Power Consumption:** Compatible with TTL and CMOS logic  

### **Descriptions:**  
The MC1455DR2 is a highly stable timer IC designed for precision timing applications. It operates in monostable (one-shot) or astable (oscillator) modes, making it suitable for pulse generation, time delay generation, and sequential timing.  

### **Features:**  
- **Wide Operating Voltage Range (4.5V to 16V)**  
- **High Output Drive Capability (200mA)**  
- **Adjustable Duty Cycle**  
- **Temperature Stability (±50ppm/°C typical)**  
- **TTL-Compatible Output**  
- **Low Power Consumption**  
- **Available in SOIC-8 Package**  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Timing Circuit

Alternative Part Number

  • NE555DR --: Industry-standard 555 timer in SOIC-8, pin-compatible and functionally equivalent to the MC1455, widely available from TI.
  • LM555CMX --: Classic bipolar 555 timer in SOIC-8 with the same pinout and timing behavior, a common drop-in replacement for MC1455DR2.
  • TLC555CDR --: CMOS 555 timer in SOIC-8 offering lower power consumption and the same pinout, suitable where reduced supply current is desired.
  • NE555D --: Industry-standard 555 timer in SOIC-8, direct functional equivalent to the MC1455 with wide availability and similar supply range.
  • LM555CM --: Bipolar 555 timer in SOIC-8 with comparable timing and drive characteristics, a common drop-in replacement for MC1455 designs.
  • TLC555CD --: CMOS 555 timer in SOIC-8 offering lower power consumption and rail-to-rail output, suitable where the MC1455 is used in timing circuits.

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