The MSP430F42xA is a mixed-signal microcontroller from Texas Instruments (TI) that features a 16-bit RISC architecture, low power consumption, a 1.8 V to 3.6 V supply range, three independent 16-bit sigma-delta A/D converters, a 16-bit Timer_A, and three capture/compare registers. It also features an integrated LCD driver, a choice of serial communication interfaces (USART) or synchronous SPI, a brownout detector, a programmable power supply voltage supervisor/monitor, serial onboard programming, no external programming voltage needed, programmable code protection by security fuse, and a boot loader in Flash devices.
The MSP430F42xA family combines a 16‑bit RISC CPU with mixed‑signal peripherals such as three independent 16‑bit sigma‑delta A/D converters, an integrated 128‑segment LCD driver, a 16‑bit Timer_A and a range of low‑power modes, making it suitable for handheld metering, weigh scales and energy meters. The devices operate from 1.8 V to 3.6 V and are offered in a 64‑pin plastic QFP package.
The document provides detailed pin assignments, functional block diagrams, operating mode descriptions, interrupt vector addresses and mechanical drawing data. It also includes important safety and warranty notices from Texas Instruments.
| Supply voltage range | 1.8 V to 3.6 V |
|---|---|
| Active mode current | 400 µA at 1 MHz, 3.0 V |
| Standby mode current | 1.6 pA |
| LCD driver capability | Integrated driver for 128 segments |
| Package type | 64‑pin plastic QFP |
| Operating temperature range | -40 °C to 85 °C |
The device operates from 1.8 V up to 3.6 V.
The microcontroller provides an active mode and five low‑power modes (LPM0‑LPM4) selectable by software.
It is offered in a 64‑pin plastic quad flat‑pack (QFP).