TI MSP430F6xx 16-bit MCU, MSP430F67641IPN, CPUXV2 25 MHz, 128 KB Flash, 8 KB RAM, 3x24b Sigma-Delta + 8x10b ADC, 52 I/O, I²C/SPI/UART, 80-LQFP (12x12 mm), -40 to 85 °C, 1.8-3.6 V.
| Parameter | Value |
|---|---|
| Series | MSP430F6xx |
| Mounting type | 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 | 8K 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) | 52 |
| Core processor | MSP430 CPUXV2 |
| Case | 80-LQFP |
| Data converters | A/D 8x10b |
| Program memory size | 128KB (128K x 8) |
The MSP430F67641IPN: A 16-bit MCU with CPUXV2 core at 25 MHz, 128 KB Flash, 8 KB RAM, and three 24-bit sigma-delta ADCs for polyphase metering.
The 52 I/O lines support segmented LCD drive, plus I²C, SPI, and UART for RF modules or PLC modems. IrDA is available for optical ports.
Yes, the MSP430F67641IPN has an end-of-life notice. The official replacement is the MSP430F67641IRGE, which is pin-compatible and shares the same core, memory, and peripheral set. Stock of the IPN variant remains available through independent distribution — quoted to order.
The MSP430F67641IRGE is the recommended replacement. It uses the same 80-pin QFN footprint, CPUXV2 core at 25 MHz, 128 KB Flash, 8 KB RAM, and the three-channel 24-bit sigma-delta ADC. No PCB redesign is required.
128 KB (128K x 8) of Flash program memory, paired with 8 KB (8K x 8) of RAM. This is sufficient for a metrology firmware stack plus moderate data logging.
The device is in an 80-LQFP package measuring 12x12 mm with 0.5 mm pitch. The pinout is identical to the MSP430F67641IRGE (80-pin QFN variant) — the datasheet landing page for the base product number MSP430F67641 provides the full pin assignment table.
The IRGE variant is the direct pin-compatible replacement in an 80-pin QFN package (smaller footprint, same 12x12 mm body). The IPN ships in an 80-LQFP with exposed leads. Both share the same core, memory, ADC array, and peripherals. For new designs, the IRGE is the active TI recommendation; the IPN is end-of-life.