MSP430AFE232IPW

TI's MSP series of ultra-low-power microcontrollers come in a wide variety. Each member device is equipped with different peripheral sets to meet the needs of various applications. This architecture, when used in conjunction with five low-power modes, is the optimal choice for extending the battery life of portable measurement applications. The device features a powerful 16-bit Reduced Instruction Set Computing (RISC) CPU, which uses 16-bit registers and a constant generator to achieve the highest coding efficiency. The Digitally Controlled Oscillator (DCO) enables the device to wake up from a low-power mode to an active mode in less than 1µs. The MSP430AFE2x3 device is an ultra-low-power mixed-signal microcontroller that integrates three independent 24-bit Σ - Δ ADCs, a 16-bit timer, a 16-bit hardware multiplier, a USART communication interface, a watchdog timer, and 11 I/O pins. The MSP430AFE2x2 device is basically the same as the MSP430AFE2x3, with the only difference being that the former only integrates two 24-bit Σ - Δ ADCs. The MSP430AFE2x1 device is basically the same as the MSP430AFE2x3, with the only difference being that the former only integrates one 24-bit Σ - Δ ADC.

Applications

• Single-phase energy meters
• Digital power monitoring
• Sensor applications

Key features

• Supply voltage range: 1.8V to 3.6V
• Active mode: 220μA (at 1MHz, 2.2V)
• Standby mode: 0.5μA
• Off mode (RAM retention): 0.1μA
• 5 power-saving modes
• Ultra-fast wake-up from standby in less than 1µs
• 16-bit RISC architecture, up to 12MHz system clock
• Basic clock module configurations: internal frequency up to 12MHz with two calibrated frequencies; internal ultra-low-power LF oscillator; HF crystal resonator up to 16MHz; external digital clock source
• Up to three 24-bit Σ-Δ ADCs with differential PGA inputs
• 16-bit Timer_A with 3 capture/compare registers
• USART, software-selectable asynchronous UART or synchronous SPI
• 16-bit hardware multiplier
• Brownout detector
• Supply voltage supervisor and monitor with programmable level detection
• Serial on-board programming, no external voltage required for programming, programmable code protection via security fuse
• On-chip emulation module