The TMP87C409BM is an 8-bit single-chip microcomputer manufactured by Toshiba Semiconductor and Storage. This microcontroller is part of the TLCS-870 series and is designed for embedded control applications requiring a balance of processing power and memory efficiency. It integrates a central processing unit (CPU), read-only memory (ROM), random-access memory (RAM), and various peripheral functions onto a single chip. This integration helps to reduce system costs and physical size. The device uses a comprehensive instruction set that allows for efficient code execution and incorporates features tailored for real-time control applications.

Applications

• Consumer Electronics: Used in VCRs, audio equipment, and home appliances for control and automation tasks.
• Industrial Control Systems: Applied in motor control, process monitoring, and general automation equipment.
• Automotive Electronics: Found in dashboard controls, engine management systems, and vehicle security systems.
• Office Automation: Used in printers, fax machines, and copiers.

Features

• 8-bit CPU: Provides suitable processing power for various control applications.
• On-chip ROM: Stores the program code, reducing the need for external memory in many applications.
• On-chip RAM: Supplies working memory for data storage and manipulation.
• Timers/Counters: Enable precise timing and counting for real-time operations.
• Serial Communication Interface: Facilitates communication with external devices, such as sensors, actuators, and other microcontrollers.
• Input/Output (I/O) Ports: Allow the microcontroller to interface with external devices and sensors.
• Interrupt Controller: Allows the microcontroller to respond quickly to external events.

Benefits

• Integration: Reduces system costs and physical size by combining multiple functions on a single chip.
• Flexibility: Easily programmed to perform a variety of control functions.
• Real-time Performance: Enables accurate timing and control for real-time applications.
• Low Power Consumption: Suitable for battery-powered applications.
• Reliability: Designed for robust operation in challenging environments.

Additional Details

The TMP87C409BM operates within defined voltage and temperature parameters, as specified in Toshiba datasheets. The ROM and RAM sizes, as well as the number of I/O ports, depend on the specific configuration. An external clock source is generally required for operation. Detailed information regarding the mask options and ROM contents will be found in the device's datasheet.