Texas Instruments MSP430F6xx series, MSP430F6746AIPZ, 16-Bit MCU, 25MHz, 256KB Flash, 16K x 8 RAM, 4x24b Sigma Delta Converter, LCD, 100-LQFP, -40°C~85°C.
| Parameter | Value |
|---|---|
| Series | MSP430F6xx |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.8V ~ 3.6V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 25MHz |
| Package | Tube |
| RAM size | 16K x 8 |
| Core size | 16-Bit |
| Peripherals | Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT, 4x24b Sigma Delta Converter |
| Connectivity | I²C, IrDA, LINbus, SPI, UART/USART |
| Number of i (O) | 62 |
| Core processor | MSP430 CPUXV2 |
| Case | 100-LQFP |
| Data converters | A/D 8x10b |
| Program memory size | 256KB (256K x 8) |
The 4x24b sigma-delta converter is the headline block. It samples multiple voltage and current channels simultaneously, which is exactly what a polyphase energy meter or a precision weigh-scale needs. The LCD controller drives a segmented glass display directly — no external display driver IC. The 8-channel 10-bit auxiliary ADC handles housekeeping (temperature, supply monitoring).
The MSP430F6747 (512 KB Flash) and MSP430F6749 (1 MB Flash) are pin-compatible upgrades in the same 100-LQFP package — firmware-only change, no board respin needed.
The MSP430F6746AIPZ runs at 25 MHz on the CPUXV2 core — fast enough to handle real-time sigma-delta conversion and LCD refresh without a coprocessor.