Texas Instruments MSP430F6xx series, 16-bit MSP430 CPUXV2 core at 25 MHz, 64 KB FLASH, 4 KB RAM, 3x24b sigma-delta + 8x10b SAR ADC, 72 I/O, 1.8-3.6 V supply, -40 to 85 °C, 100-LQFP (14x14 mm) tray.
| 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 | Tray |
| RAM size | 4K x 8 |
| Core size | 16-Bit |
| Peripherals | Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT, 3x24b Sigma Delta Converter |
| Connectivity | I²C, IrDA, SPI, UART/USART |
| Number of i (O) | 72 |
| Core processor | MSP430 CPUXV2 |
| Case | 100-LQFP |
| Data converters | A/D 8x10b |
| Program memory size | 64KB (64K x 8) |
The LCD driver supports segment displays common in panel meters and energy monitors. The DMA engine offloads data movement from the CPU, which matters when the sigma-delta ADCs are streaming samples at high rates. The 72 I/O pins provide enough headroom for a keypad, relay drivers, and communication isolation optocouplers without a port expander.
The MSP430F67621IPZ runs at 25 MHz, which is the maximum CPU clock for the MSP430 CPUXV2 core in this device.
This MCU is designed for polyphase energy metering and precision measurement applications, leveraging its three 24-bit sigma-delta ADCs for simultaneous voltage and current sampling on multiple phases.