Texas Instruments MSP430A001IPM

Overview

MSP430A001IPM from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 60KB flash, 2KB RAM, dual USARTs, 12-bit ADC with 8 channels, two 16-bit timers (Timer_A3 and Timer_B7), and hardware multiplier - designed for battery-powered sensor systems and portable instrumentation requiring sub-µA standby current and <6 µs wake-up.

For engineers reviewing the MSP430A001IPM datasheet, MSP430A001IPM pinout, MSP430A001IPM application, or MSP430A001IPM equivalent, key selection criteria include its LQFP-64 package, 1.8–3.6 V supply range, integrated DCO oscillator, JTAG debug interface, and dual UART/SPI capability for industrial telemetry and metering designs.

Technical Context

The MSP430A001IPM implements a 16-bit RISC CPU with constant generators and three low-power modes optimized for extended battery life. Its architecture supports simultaneous operation of two independent 16-bit timers - Timer_A with three capture/compare registers and Timer_B with seven plus shadow registers - enabling precise PWM generation and input capture in real-time control loops.

It integrates a 12-bit ADC12 module with internal reference, sample-and-hold, autoscan, and conversion time under 10 µs, alongside an on-chip comparator and programmable code protection via security fuse. The device uses a digitally controlled oscillator (DCO) for fast wake-up and supports external crystals (LFXT1 and XT2) for precision timing.

Key Specifications

Pinout & Package

LQFP-64 package (10 mm × 10 mm), thermally enhanced with exposed thermal pad connected to DVSS; 48 general-purpose I/O pins distributed across six ports (P1–P6), including dedicated analog inputs (A0–A7), timer I/O, crystal connections (XIN/XOUT, XT2IN/XT2OUT), and JTAG debug interface (TCK/TMS/TDI/TDO).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with MSP430F149IPM, the MSP430A001IPM offers identical functionality and footprint, while MSP430F1491IPM trades XT2 capability for lower cost - making the MSP430A001IPM optimal for designs needing full dual-crystal timing flexibility without firmware adaptation.

Availability

MSP430A001IPM is available at Aetrix Electronics and suitable for smart metering, wireless sensor networks, industrial process monitors, and portable handheld testers requiring stable component supply across long production lifecycles.

Supply support for MSP430A001IPM 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 over 50 years of microcontroller innovation.

The MSP430 family was engineered for ultra-low-power sensing and measurement applications - emphasizing sub-µA sleep currents, fast wake-up, and integrated analog peripherals to minimize external component count in battery-operated systems.

FAQ

What is the maximum operating frequency of the MSP430A001IPM?

The MSP430A001IPM does not have a fixed maximum clock frequency rating; instead, it uses a digitally controlled oscillator (DCO) calibrated to operate up to approximately 8 MHz under typical conditions. Its 125-ns instruction cycle corresponds to a 8-MHz CPU clock, and the device supports external crystals (LFXT1 up to 32.768 kHz, XT2 up to 16 MHz) for higher-precision timing. The MSP430A001IPM achieves full performance within its 1.8–3.6 V supply range without requiring external PLL circuitry.

Does the MSP430A001IPM support in-system programming via JTAG?

Yes, the MSP430A001IPM fully supports IEEE 1149.1-compliant JTAG programming and debugging through dedicated pins TCK, TMS, TDI/TCLK, and TDO/TDI (pins 57, 56, 55, and 54). It enables full flash erase/write, breakpoint setting, register inspection, and real-time execution control. The MSP430A001IPM also supports bootstrap loader (BSL) access via UART for field firmware updates without JTAG hardware - both methods preserve security fuse integrity unless explicitly blown.

How many analog input channels does the MSP430A001IPM ADC support?

The MSP430A001IPM integrates the ADC12 module with eight configurable analog input channels (A0–A7), mapped to P6.0 through P6.7. These inputs support single-ended or differential measurements, internal/external reference selection, and autoscan mode for automatic sequential conversion. The ADC12 delivers 12-bit resolution with integral nonlinearity (INL) of ±1 LSB and conversion times under 10 µs - verified in TI's SLAS272H datasheet for the MSP430F14x family, to which the MSP430A001IPM belongs.

Is the MSP430A001IPM pin-compatible with other MSP430F14x devices?

Yes, the MSP430A001IPM is pin-compatible with the MSP430F149IPM and MSP430F1491IPM in the LQFP-64 (PM) package, sharing identical pin assignments, electrical characteristics, and peripheral mappings per TI's SLAS272H datasheet. All three parts use the same 64-pin layout, I/O structure, power domains (DVCC/AVCC/DVSS/AVSS), and JTAG interface - enabling direct substitution in existing PCB designs without layout modification.

What low-power modes are available on the MSP430A001IPM?

The MSP430A001IPM provides five configurable low-power modes (LPM0–LPM4), each disabling specific clock domains and peripherals to minimize current draw. LPM3 retains RAM and basic clocks (ACLK) at 1.6 µA; LPM4 shuts down all clocks and retains only RAM at 0.1 µA. Wake-up from LPM3 occurs in less than 6 µs via interrupts from GPIO, timers, or USART. These modes are implemented in hardware and require no external components - a defining feature of the MSP430 architecture confirmed in the MSP430F14x family documentation.