MSP430F6735AIPZR

TI MSP series 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, combined with multiple 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 (RISC) CPU, using 16-bit registers and a constant generator for maximum coding efficiency. The DCO enables the device to wake up from low-power mode to active mode in less than 3µs (typical). MSP430F673xA and MSP430F672xA microcontrollers have high-performance 24-bit Σ-Δ ADCs (3 ADCs in MSP430F673xA and 2 ADCs in MSP430F672xA), a 10-bit ADC, 4 eUSCIs (3 eUSCI_A modules and 1 eUSCI_B module), 4 16-bit timers, a hardware multiplier, a DMA module, an RTC module with alarm function, an LCD driver with integrated contrast control, and an auxiliary power supply system; The 100-pin device has up to 72 I/O pins, while the 80-pin device has up to 52 I/O pins.

Applications

• Single-phase electronic energy meter monitoring
• Utility meter measurement

Key features

• Low supply voltage range: 3.6V down to 1.8V
• Ultra-low power consumption – Active Mode (AM): All system clocks active at 8MHz, 3.0V: 265µA/MHz (typical) during Flash program execution; 140µA/MHz (typical) during RAM program execution
• Standby Mode (LPM3): RTC with crystal, watchdog, power monitor available, full RAM retention, fast wake-up: 1.7µA at 2.2V, 2.5µA at 3.0V (typical)
• Off Mode (LPM4): Full RAM retention, power monitor available, fast wake-up: 1.6µA at 3.0V (typical)
• RTC-off Mode (LPM3.5): Power-down mode with RTC (crystal-based) operational: 1.24µA at 3.0V (typical)
• Power-off Mode (LPM4.5): 0.78µA at 3.0V (typical)
• Wake-up from standby mode within 3µs (typical)
• 16-bit RISC architecture, extended memory, system clock up to 25MHz
• Flexible power management system – integrated programmable LDO
• Supply voltage supervision, monitoring, and brownout protection
• System operation powered by up to 2 auxiliary supply voltages
• Single clock system – FLL control loop for frequency stabilization
• Low-power low-frequency internal clock source (VLO)
• Low-frequency trimmed internal reference source (REFO)
• 32kHz crystal (XT1); one 16-bit timer with 3 capture/compare registers
• Three 16-bit timers, each with 2 capture/compare registers
• Enhanced Universal Serial Communication Interface (eUSCI) – eUSCI_A0, eUSCI_A1, and eUSCI_A2
• Enhanced UART with automatic baud rate detection
• IrDA encoding and decoding
• SPI
• eUSCI_B0 – I2C with multiple slave addressing support
• SPI
• Password-protected RTC with crystal offset calibration and temperature compensation
• Independent voltage supply for backup subsystem – 32kHz XT1
• Real-time clock
• Backup memory (4×16-bit)
• Three 24-bit Σ-Δ ADCs with differential PGA inputs
• Integrated LCD driver with up to 320-segment contrast control in 8-mux mode
• Hardware multiplier supporting 32-bit operations
• 10-bit 200ksps ADC – internal reference
• Sample-and-hold, auto-scan capability
• Up to 6 external channels and 2 internal channels, including temperature sensor
• 3-channel internal DMA
• Serial in-system programming, no external programming voltage required
• Available in 100-pin and 80-pin LQFP packages