Overview
The Texas Instruments MSP430FE427IPMR is a member of the MSP430 family of ultra-low-power microcontrollers. This device is specifically designed for energy metering applications, featuring a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency. It is optimized for extended battery life in portable measurement applications, with five low-power modes and a digitally controlled oscillator (DCO) that allows the device to wake up from low-power modes to active mode in less than 6 µs.
Key Specifications
| Parameter | Value |
|---|---|
| Frequency | 8 MHz (max 16 MHz) |
| Package | 64-pin LQFP (PM) |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage Range | 2.7 V to 3.6 V |
| Flash Memory | 32 KB |
| RAM | 1 KB |
| ADCs | 3 independent 16-bit sigma-delta ADCs |
| LCD Drive Capability | 128 segments |
| Interfaces | SPI, UART, USART |
| Power Consumption | Active Mode: 400 µA at 1 MHz, 3 V; Standby Mode: 1.6 µA; Off Mode (RAM Retention): 0.1 µA |
Key Features
- Ultra-low power consumption with five power-saving modes and fast wake-up time from standby mode in less than 6 µs.
- 16-bit RISC architecture with 125-ns instruction cycle time and embedded signal processing for single-phase energy metering.
- Integrated 16-bit timer_A with three capture/compare registers and serial communication interface (USART) supporting asynchronous UART or synchronous SPI.
- Brownout detector, supply voltage supervisor and monitor with programmable level detection, and serial onboard programming without external programming voltage.
- Integrated LCD driver for 128 segments and 14 I/O pins.
- Bootloader (BSL) and programmable code protection by security fuse.
Applications
The MSP430FE427IPMR is primarily used in energy metering applications, including 2-wire and 3-wire single-phase metering. It is also suitable for tamper-resistant meter implementations due to its integrated features and low power consumption.
Q & A
- What is the maximum operating frequency of the MSP430FE427IPMR?
The maximum operating frequency is 16 MHz, although it typically operates at 8 MHz.
- What is the package type and pin count of the MSP430FE427IPMR?
The device comes in a 64-pin LQFP (PM) package.
- What is the operating temperature range of the MSP430FE427IPMR?
The operating temperature range is -40°C to 85°C.
- How much flash memory and RAM does the MSP430FE427IPMR have?
The device has 32 KB of flash memory and 1 KB of RAM.
- What types of ADCs are integrated into the MSP430FE427IPMR?
The device features three independent 16-bit sigma-delta ADCs.
- What is the power consumption in active and standby modes?
In active mode, it consumes 400 µA at 1 MHz, 3 V, and in standby mode, it consumes 1.6 µA. In off mode with RAM retention, it consumes 0.1 µA).
- Does the MSP430FE427IPMR support any serial communication interfaces?
Yes, it supports SPI, UART, and USART interfaces).
- What is the purpose of the embedded signal processing core in the MSP430FE427IPMR?
The embedded signal processing core is used for single-phase energy metering).
- Can the MSP430FE427IPMR be programmed without an external programming voltage?
Yes, it supports serial onboard programming without an external programming voltage).
- What are some typical applications of the MSP430FE427IPMR?
Typical applications include 2-wire and 3-wire single-phase metering and tamper-resistant meter implementations).
