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DS89C21TMX/NOPB from NS,National Semiconductor

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DS89C21TMX/NOPB

Manufacturer: NS

Differential CMOS Line Driver and Receiver Pair 8-SOIC -40 to 85

Partnumber Manufacturer Quantity Availability
DS89C21TMX/NOPB,DS89C21TMXNOPB NS 35000 In Stock

Description and Introduction

Differential CMOS Line Driver and Receiver Pair 8-SOIC -40 to 85 The DS89C21TMX/NOPB is a high-speed microcontroller manufactured by Maxim Integrated (now part of Analog Devices). Key specifications include:  

- **Core**: 8051-compatible  
- **Clock Speed**: Up to 33 MHz  
- **Memory**: 8 KB Flash, 256 bytes RAM  
- **Operating Voltage**: 3.0V to 5.5V  
- **I/O Pins**: 32  
- **Timers/Counters**: Three 16-bit  
- **UART**: One full-duplex  
- **Package**: 40-pin PDIP  
- **Temperature Range**: -40°C to +85°C  
- **Additional Features**: Watchdog timer, power-fail reset  

This part is now obsolete (marked as "Not for New Designs" by the manufacturer).

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