Memory and connectivity for a metering node
The MSP430F67691AIPZR: 512 KB of Flash is enough to hold metrology firmware, calibration tables, and a communication protocol stack (e.g., DLMS/COSEM or Modbus). The 32 KB RAM supports multi-tariff data logging and buffered UART frames. The I²C and SPI interfaces can talk to external FRAM or EEPROM for non-volatile storage of billing data. The LCD driver can directly segment-drive a character display, eliminating a separate display controller. The LINbus interface is useful for automotive or industrial sub-metering networks.
Lifecycle and sourcing
The MSP430F67691AIPZR is listed as Active in production with no end-of-life notice on record. It can be specified into new designs with normal supply continuity. Sourced and quoted to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.
