The MSP430x31x mixed signal microcontrollers are low-voltage microcontrollers with a range of 2.5V-5.5V and ultra-low power consumption. They feature low operating current, multiple power saving modes, 16-bit RISC architecture, LCD driver, and more.
The MSP430x31x family is an ultra‑low‑power mixed‑signal microcontroller line designed for battery‑operated applications. It uses a 16‑bit RISC CPU, a digitally‑controlled oscillator with a frequency‑locked loop, and offers wake‑up from low‑power mode in less than 6 µs. The device provides five power‑saving modes and integrates an LCD driver for up to 64 or 92 segments.
The document lists the available package options (56‑pin DL, 48‑pin SSOP, 68‑pin JLCC), pin‑out tables, functional block diagrams, and detailed specifications such as supply voltage range, current consumption, ROM/RAM sizes, and interrupt vectors. Mechanical dimensions and legal notices are also included.
| Supply voltage range | 2.5 V – 5.5 V |
|---|---|
| Operation current (1 MHz) | 400 µA |
| Power‑saving modes | 5 (Active, LPM0‑LPM4) |
| Wake‑up time from standby | 6 µs |
| Integrated LCD driver segments | up to 64 or 92 |
| ROM size (MSP430C311S) | 2 kB |
| RAM size (MSP430C311S) | 128 B |
The devices operate from 2.5 V to 5.5 V.
It can wake up in about 6 µs.