Overview
The MSP430F6721IPNR is a single-phase metering System-on-Chip (SoC) from Texas Instruments, designed for ultra-low power consumption and high performance in various measurement applications. This microcontroller is part of the MSP430F6xx family, which is renowned for its energy efficiency and robust feature set. The MSP430F6721IPNR is packaged in an 80-pin LQFP (PN) package, making it suitable for a wide range of metering and measurement tasks.
Key Specifications
| Parameter | Value |
|---|---|
| Package | LQFP (80 pins) |
| Flash Memory | 32 KB |
| RAM | 2 KB |
| Supply Voltage Range | 3.6 V down to 1.8 V |
| System Clock Speed | Up to 25 MHz |
| ADCs | 2 x 24-bit Sigma-Delta ADCs, 1 x 10-bit ADC |
| Timers | Four 16-bit timers with capture/compare registers |
| Serial Communication Interfaces | eUSCI_A (UART, IrDA, SPI), eUSCI_B (SPI, I2C) |
| LCD Driver | Integrated LCD driver with contrast control for up to 320 segments in 8-mux mode |
| Power Consumption (Active Mode) | 265 µA/MHz at 8 MHz, 3.0 V (typical) |
| Power Consumption (Standby Mode) | 1.7 µA at 2.2 V, 2.5 µA at 3.0 V (typical) |
Key Features
- Ultra-low power consumption with various low-power modes (LPM3, LPM4, LPM3.5, LPM4.5)
- 16-bit RISC architecture with a powerful CPU and 16-bit registers
- Fully integrated LDO with programmable regulated core supply voltage
- Supply voltage supervision, monitoring, and brownout detection
- Unified clock system with FLL control loop and low-power low-frequency internal clock source (VLO)
- Password-protected RTC with crystal offset calibration and temperature compensation
- Separate voltage supply for backup subsystem with 32-kHz low-frequency oscillator and real-time clock
- Hardware multiplier supporting 32-bit operations
- Three-channel internal DMA
- Serial onboard programming without external programming voltage
Applications
- 2-wire single-phase metering
- 3-wire single-phase metering
- Tamper-resistant meters
- Portable measurement applications requiring extended battery life
Q & A
- What is the package type of the MSP430F6721IPNR?
The MSP430F6721IPNR is packaged in an 80-pin LQFP (PN) package.
- What is the flash memory capacity of the MSP430F6721IPNR?
The MSP430F6721IPNR has 32 KB of flash memory.
- What is the RAM capacity of the MSP430F6721IPNR?
The MSP430F6721IPNR has 2 KB of RAM.
- What is the supply voltage range for the MSP430F6721IPNR?
The supply voltage range is from 3.6 V down to 1.8 V.
- What types of ADCs are included in the MSP430F6721IPNR?
The device includes 2 x 24-bit Sigma-Delta ADCs and 1 x 10-bit ADC.
- Does the MSP430F6721IPNR support serial communication interfaces?
Yes, it supports eUSCI_A (UART, IrDA, SPI) and eUSCI_B (SPI, I2C) interfaces.
- What is the power consumption in active mode for the MSP430F6721IPNR?
The power consumption in active mode is typically 265 µA/MHz at 8 MHz, 3.0 V.
- What are the low-power modes available in the MSP430F6721IPNR?
The device supports various low-power modes including LPM3, LPM4, LPM3.5, and LPM4.5.
- Does the MSP430F6721IPNR have an integrated LCD driver?
Yes, it has an integrated LCD driver with contrast control for up to 320 segments in 8-mux mode.
- Is the MSP430F6721IPNR suitable for tamper-resistant meters?
Yes, it is suitable for tamper-resistant meters among other metering applications.
