TP80C31BH Microcontroller 8-Bit DIP-40
The TP80C31BH is a single-chip, control-oriented 8-bit microcontroller fabricated using Intel’s reliable CHMOS III-E technology. As a member of the MCS®-51 family, it maintains full architectural and instruction set compatibility with this established lineage. This device is designed as a general-purpose embedded control unit, integrating the core CPU, timing logic, and interrupt control on a single piece of silicon to form a complete microcomputer system.
This microcontroller is characterized by its lack of on-chip program memory, requiring all program code to be stored externally. It features 128 bytes of on-chip data RAM for efficient variable handling and stack operations. The device can address up to 64K bytes of both external program and external data memory, facilitated by its multiplexed address and data bus on Port 0 and the high-order address bus on Port 2, providing significant flexibility for system expansion.
A key characteristic of the TP80C31BH is its low power consumption, enhanced by two software-selectable power-saving modes. Idle mode halts the CPU while allowing the RAM, timers, serial port, and interrupt system to remain active. Power Down mode preserves RAM contents but stops the oscillator, reducing power to a minimal level. These features make it particularly suitable for battery-powered or energy-sensitive applications where power efficiency is critical.
Features:
- CHMOS Single-Chip 8-Bit Microcontroller.
- MCS®-51 Family Architecture and Instruction Set.
- 128 Byte Internal Data RAM.
- 64K External Program Memory Address Space.
- 64K External Data Memory Address Space.
- Boolean Processor.
- Two 16-Bit Timer/Counters.
- Five Interrupt Sources.
- Programmable Full-Duplex Serial Port.
- Four 8-Bit I/O Ports (32 I/O Lines).
- Power Control Modes: Idle and Power Down.
- TTL and CMOS Compatible Logic Levels.
- ONCE Mode for In-Circuit Emulation and Testing.
Specifications:
| Parameter | Specification |
|---|---|
| Core: | 8-Bit MCS-51 |
| On-Chip Program Memory: | None (External Required) |
| On-Chip Data RAM: | 128 Bytes |
| Maximum Clock Frequency: | 12 MHz (Standard), 24 MHz (-24 variant) |
| Supply Voltage (Vcc): | 4.5V to 5.5V |
| I/O Pins: | 32 |
| Timers: | Two 16-Bit |
| Interrupt Sources: | 5 |
| Serial Communication: | Full-Duplex UART |
| Power-Down Modes: | Idle, Power Down |
| Package: | 40-Pin DIP |
| Operating Temperature: | 0°C to +70°C (Commercial) |
Pinout Diagram:
Applications:
- Automotive Control Systems.
- Industrial Control Systems.
- Consumer Electronics.
- Smart Sensors and Actuators.
- Peripheral Controllers.
- Battery-Powered Devices.
Package Contents:
- 1x TP80C31BH Microcontroller 8-Bit DIP-40
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