Overview
The Texas Instruments MSP430F123IDWR is a member of the MSP430 family of ultralow power microcontrollers. This device is designed for various applications requiring low power consumption and high performance. The MSP430F123IDWR features 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 and supports multiple low-power modes to minimize energy consumption.
Key Specifications
| Parameter | Value |
|---|---|
| Flash Memory | 8KB + 256B |
| RAM | 256B |
| Boot Memory | 1KB ROM |
| Package Options | 28-Pin Plastic Small-Outline Wide Body (SOWB), 28-Pin Plastic Thin Shrink Small-Outline Package (TSSOP), 32-Pin QFN |
| Operating Temperature Range | −40°C to 85°C |
| CPU | 16-bit RISC CPU |
| Timers | 16-bit Timer_A3 with capture/compare registers |
| Communication Protocols | USART0 (UART and SPI modes) |
| Low-Power Modes | Active mode and five software-selectable low-power modes (LPM0 to LPM4) |
| Clock System | Auxiliary clock (ACLK), Main clock (MCLK), Sub-Main clock (SMCLK), and internal DCO |
| I/O Ports | Three 8-bit I/O ports (P1, P2, P3) with edge-selectable interrupt capability |
Key Features
- Low Power Consumption: The device features six operating modes, including one active mode and five low-power modes, to minimize energy consumption.
- Powerful CPU: A 16-bit RISC CPU with 16-bit registers and constant generators for maximum code efficiency.
- Fast Wake-Up: The internal digitally-controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 6 μs.
- Communication Capabilities: Supports asynchronous (UART) and synchronous (SPI) communication protocols through the USART0 module.
- Timer and Capture/Compare: 16-bit Timer_A3 with multiple capture/compare registers and extensive interrupt capabilities.
- Bootstrap Loader (BSL): Enables programming of flash memory or RAM using a UART serial interface, protected by a user-defined password.
- Watchdog Timer: Performs a controlled system restart after a software problem or generates interrupts at selected time intervals.
- Analog Comparator: A versatile analog comparator for various analog signal processing tasks.
Applications
- Sensor Systems: Ideal for capturing analog signals, converting them to digital values, processing the data, and displaying or transmitting it to a host system.
- RF Sensor Front End: Suitable for standalone RF sensor applications.
- Portable Measurement Devices: Optimized for extended battery life in portable measurement applications.
- Industrial Automation: Can be used in various industrial automation tasks requiring low power and high reliability.
- Medical Devices: Applicable in medical devices that require low power consumption and precise signal processing.
Q & A
- What is the flash memory capacity of the MSP430F123IDWR?
The MSP430F123IDWR has 8KB of flash memory plus 256 bytes of information memory.
- What are the package options available for the MSP430F123IDWR?
The device is available in 28-Pin Plastic Small-Outline Wide Body (SOWB), 28-Pin Plastic Thin Shrink Small-Outline Package (TSSOP), and 32-Pin QFN packages.
- What is the operating temperature range of the MSP430F123IDWR?
The operating temperature range is from −40°C to 85°C.
- What communication protocols are supported by the MSP430F123IDWR?
The device supports asynchronous (UART) and synchronous (SPI) communication protocols through the USART0 module.
- How many low-power modes does the MSP430F123IDWR have?
The device has one active mode and five software-selectable low-power modes (LPM0 to LPM4).
- What is the purpose of the watchdog timer in the MSP430F123IDWR?
The watchdog timer performs a controlled system restart after a software problem or generates interrupts at selected time intervals.
- How can the flash memory of the MSP430F123IDWR be programmed?
The flash memory can be programmed via the JTAG port, the bootstrap loader, or in-system by the CPU.
- What is the role of the analog comparator in the MSP430F123IDWR?
The analog comparator is used for various analog signal processing tasks.
- Can the MSP430F123IDWR be used in industrial automation applications?
Yes, it is suitable for various industrial automation tasks requiring low power and high reliability.
- Is the MSP430F123IDWR suitable for medical devices?
Yes, it is applicable in medical devices that require low power consumption and precise signal processing.
