Texas Instruments MSP430F2370TRHAR

Overview

MSP430F2370TRHAR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 32KB+256B flash, 2KB RAM, dual 16-bit timers (Timer_A3 and Timer_B3), USCI_A0/USCI_B0 serial interfaces (UART/IrDA/SPI/I²C), and an on-chip analog comparator - deployed in battery-powered sensor nodes and portable instrumentation requiring sub-1µs wake-up and <0.1µA off-mode retention.

For engineers reviewing the MSP430F2370TRHAR datasheet, MSP430F2370TRHAR pinout, MSP430F2370TRHAR application, or MSP430F2370TRHAR equivalent, this page delivers verified electrical specs, QFN-40 package terminal mapping, low-power operating mode behavior, and validated alternative MCUs for migration or second-sourcing.

Technical Context

The MSP430F2370TRHAR integrates a digitally controlled oscillator (DCO) calibrated to ±1% at 1–16 MHz, enabling sub-1µs wake-up from LPM4. Its clock system supports ACLK (LF crystal or internal VLO), SMCLK (DCO-derived), and MCLK (CPU clock), with independent gating per peripheral module.

It implements two independent 16-bit timer peripherals - Timer_A3 with three capture/compare registers supporting PWM, input capture, and interval timing; and Timer_B3 with identical structure and additional TBOUTH output for synchronized PWM shutdown - both fully interrupt-capable and mapped to dedicated I/O pins across Ports P1–P4.

Key Specifications

Pinout & Package

Package: 40-pin QFN (RHA), 6 mm × 6 mm body, exposed thermal pad (connected to D/AVSS).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.

Compared with MSP430F2370TRHAR, MSP430F247TRHAR offers greater memory capacity within identical packaging and power profiles, while MSP430FR2355TRHBR replaces flash with FRAM to eliminate write wear-out concerns - both retain full peripheral compatibility but serve distinct longevity and scalability needs.

Availability

MSP430F2370TRHAR is available at Aetrix Electronics and suitable for smart metering, portable medical devices, industrial condition monitoring, and wireless sensor networks requiring stable component supply across multi-year production cycles.

Supply support for MSP430F2370TRHAR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies with decades of low-power MCU innovation.

The MSP430F23x0 series targets ultra-low-power portable measurement systems - designed for extended battery life in sensor nodes, handheld instruments, and energy-harvesting applications where wake-up latency and standby current are critical.

FAQ

What is the maximum operating frequency of the MSP430F2370TRHAR?

The MSP430F2370TRHAR supports up to 16 MHz system clock via its factory-calibrated digitally controlled oscillator (DCO). This frequency is achievable using internal calibration constants stored in information memory segment A, eliminating the need for an external high-frequency crystal in many applications while maintaining ±1% accuracy across voltage and temperature.

Does the MSP430F2370TRHAR support hardware UART with automatic baud rate detection?

Yes, the MSP430F2370TRHAR's USCI_A0 module supports enhanced UART with LIN-compliant automatic baud rate detection. This feature allows the MSP430F2370TRHAR to synchronize to incoming serial frames without prior knowledge of the transmitter's baud rate - ideal for interoperability with legacy automotive or industrial bus systems.

How many I/O pins does the MSP430F2370TRHAR provide, and what are their key capabilities?

The MSP430F2370TRHAR provides 32 individually configurable I/O pins across Ports P1–P4. Each pin supports programmable pullup/pulldown resistors, edge-selectable interrupts (on P1/P2), and peripheral function multiplexing - including timer capture/compare, USCI signals, comparator inputs, and JTAG debugging - enabling flexible hardware resource allocation.

What low-power modes are available on the MSP430F2370TRHAR, and what is the lowest current draw?

The MSP430F2370TRHAR offers six operating modes: Active Mode and five software-selectable low-power modes (LPM0–LPM4). In LPM4 (RAM retention only), it draws just 0.1 µA at 2.2 V - the lowest current state - making it suitable for decade-long deployments in battery-constrained applications like utility meters and environmental sensors.

Is the MSP430F2370TRHAR pin-compatible with other devices in the MSP430F23x0 family?

Yes, the MSP430F2370TRHAR shares identical 40-pin QFN (RHA) packaging and pinout with MSP430F2330TRHAR and MSP430F2350TRHAR. This enables drop-in replacement across the F23x0 series when scaling flash/RAM requirements - provided firmware accommodates memory map differences and peripheral enablement logic.