MSP430F123IRHBT Overview
The MSP430F123IRHBT is a low-power, 16?bit microcontroller designed for embedded control and sensing. It combines a 16?bit RISC CPU with on?chip nonvolatile memory, analog conversion, timers, and serial peripherals to support compact, energy?efficient designs. The device targets battery?powered and industrial systems that need more throughput than 8?bit controllers while keeping power and PCB space low. For component sourcing and additional device families, see IC Manufacturer.
MSP430F123IRHBT Technical Specifications
| Parameter | Value |
|---|---|
| CPU core | 16?bit RISC |
| Maximum CPU clock | 8 MHz |
| On?chip Flash | 16 KB |
| SRAM | 512 bytes |
| A/D converter | 10?bit, up to 8 channels |
| Digital I/O | Up to 28 pins |
| Operating voltage | 1.8 V to 3.6 V |
| Low?power modes | Multiple LPMs for standby and sleep |
| Timers | Two 16?bit timers with capture/compare |
| Serial interfaces | USART / UART support |
| Package | 64?pin package (TSSOP / LQFP variants) |
| Temperature range | Industrial grade (?C40 ??C to 85 ??C) |
MSP430F123IRHBT Key Features
- 16?bit RISC core ?? delivers higher computational efficiency per cycle compared with typical 8?bit parts.
- Integrated Flash memory ?? 16 KB of nonvolatile code storage for compact firmware and field updates.
- 10?bit ADC ?? accurate analog measurements for sensor interfaces and power monitoring.
- Multiple low?power modes ?? allows minimal current draw in standby, extending battery life for portable applications.
- Timers with capture/compare ?? precise PWM generation and event timing for motor control and power conversion.
- USART/UART ?? robust serial communication for debug, telemetry, and external peripherals.
- Industrial temperature rating ?? suitability for harsher environments compared with consumer?grade MCUs.
- Wide supply range ?? 1.8?C3.6 V operation enables compatibility with single?cell lithium and regulated systems.
Typical Applications
- Battery?powered sensor nodes that require low sleep current, periodic A/D sampling, and modest compute for preprocessing sensor data before wireless transmission.
- Portable medical instruments that need precise 10?bit analog readings, reliable timers for sampling schedules, and low standby consumption between measurements.
- Industrial control panels that demand a small footprint MCU with serial communications, multiple timers for control loops, and operation across a wide temperature range.
- Handheld test equipment where a 16?bit core offers better fixed?point math performance, on?chip Flash for application code, and flexible I/O for sensors and displays.
MSP430F123IRHBT Advantages vs Typical Alternatives
The device provides a clear balance of performance and power. Compared with many 8?bit microcontrollers, the 16?bit core delivers more operations per cycle and more efficient arithmetic for control algorithms. Compared with higher?end 32?bit parts, the MCU uses less energy and has a smaller memory footprint, which lowers system cost and complexity. The integrated 10?bit ADC and multiple timers reduce the need for external components, improving reliability and reducing BOM count.
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MSP430F123IRHBT Brand Info
MSP430F123IRHBT belongs to Texas Instruments’ MSP430 family, known for ultra?low power microcontrollers. The family emphasizes long battery life, multiple low?power modes, and easy integration into sensing and control systems. This part fits TI’s focus on mixed?signal designs and compact embedded solutions.
FAQ
What core architecture does it use?
The controller uses a 16?bit RISC architecture. This provides more efficient integer arithmetic and bit manipulation than typical 8?bit cores for control and signal?processing tasks.
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What is the ADC resolution?
The on?chip analog?to?digital converter provides 10?bit resolution. This level of resolution suits many sensor and measurement applications that need a tradeoff between precision and conversion speed.
What supply voltages are supported?
Operating voltage ranges from 1.8 V to 3.6 V. This supports single?cell lithium batteries and standard 3.3 V regulated systems common in industrial and portable designs.
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Is it suitable for industrial temperatures?
Yes. The device is rated for industrial temperature ranges, making it suitable for applications that require reliable operation between approximately ?C40 ??C and +85 ??C.
How does it help with low?power designs?
Multiple low?power modes reduce active and standby current. Designers can combine short active bursts with deep sleep to extend battery life in periodic sampling and event?driven systems.