The TMP87C409AM-3BG7 is an 8-bit single-chip microcomputer manufactured by Toshiba Semiconductor and Storage. Part of the TLCS-870 series, it is tailored for embedded control applications that demand a mix of processing capability and efficient memory management. The integration of a central processing unit (CPU), read-only memory (ROM), random-access memory (RAM), and various peripheral functions onto a single chip helps reduce the system's overall cost and size. The device employs an instruction set designed for efficient code execution and includes features suitable for real-time control. The suffix '-3BG7' indicates a particular ROM configuration or programmed content of the microcomputer.

Applications

• Consumer Electronics: Often used in devices like VCRs, audio equipment, and home appliances to manage control functions and automation.
• Industrial Control Systems: Applied in controlling motors, monitoring processes, and managing general automation.
• Automotive Electronics: Found within dashboard controls, engine management systems, and car security implementations.
• Office Automation: Used in printers, fax machines, and copiers to manage operations.

Features

• 8-bit CPU: Delivers appropriate processing power for handling a variety of control applications.
• On-chip ROM: Stores program code, which may eliminate the reliance on external memory components.
• On-chip RAM: Provides essential memory for storing and processing data during program runtime.
• Timers/Counters: Facilitates precise timing and counting, which is essential for real-time control.
• Serial Communication Interface: Provides an interface for communicating with external components, like sensors, actuators, and other microcontrollers.
• Input/Output (I/O) Ports: Permits connection to external devices and sensors.
• Interrupt Controller: Enables responses to external signals promptly.

Benefits

• Integration: Decreases the expense and physical footprint of the system by integrating numerous features into a single chip.
• Flexibility: Can be easily programmed to perform a wide range of control operations.
• Real-time Performance: Supports accurate timing and control in real-time applications.
• Low Power Consumption: Suitable for devices that depend on battery power.
• Reliability: Engineered for stable operation in challenging settings.

Additional Details

The TMP87C409AM-3BG7 runs within specified voltage and temperature ranges, as per Toshiba’s documentation. The sizes of ROM and RAM, in addition to the count of I/O ports, depend on the precise configuration. An external clock signal is generally needed. Specifics on the ROM contents and mask options specific to the '-3BG7' version are available in the related datasheet.