A typical smart meter comprises separate controllers for electric power calculation, data communication, and output display. By integrating multiple functionalities, the TMPM411F20XBG achieves independent control of the electric power calculation and communication control in a single chip, reducing the circuit board area within the smart meter.
The TMPM411F20XBG implements tamper detection and failure detection with very low power consumption, and also incorporates key security functions suitable for secure network communication. These include Advanced Encryption Standard (AES), Secure Hash Algorithm (SHA) and Entropy Source Generator (ESG). Its large on-chip Flash memory allows for robust code and data storage as required for extensive service lifetime.
Delivered in a 14x14mm VFGBA193 package, the TMPM411F20XBG operates at 2.7 to 3.6V, with a maximum operating frequency of 80MHz. It has an internal memory of 2048 Kbytes Flash and 290 Kbytes total SRAM, 34-channel direct memory access (DMA), 9-channel 12-bit analog-to-digital converter (ADC).
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