Texas Instruments MSP430A023IPM

Overview

MSP430A023IPM from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller in 64-pin QFP (PM) package, featuring 4KB Flash + 256B RAM, integrated 96-segment LCD driver, on-chip comparator, and FLL+ clock system. It operates from 1.8 V to 3.6 V and supports five power-saving modes with wake-up from standby in under 6 μs - ideal for battery-powered handheld meters and sensor interfaces.

For engineers reviewing the MSP430A023IPM datasheet, MSP430A023IPM pinout, MSP430A023IPM application, or MSP430A023IPM equivalent, key selection criteria include Flash memory size, LCD segment count, Timer_A3 capability, supply voltage range, and QFP-64 package compatibility with legacy MSP430x41x designs.

Technical Context

The MSP430A023IPM implements a 16-bit RISC CPU with 125-ns instruction cycle time, constant generators, and seven addressing modes. Its FLL+ module locks DCO frequency to a programmable multiple of ACLK (e.g., 32768 Hz crystal), enabling stable MCLK up to 8 MHz without external high-frequency crystals.

It integrates Timer_A3 with three capture/compare registers, a 10-bit SAR ADC is not present; instead, it relies on the on-chip comparator for analog threshold detection. The device uses dual-supply domains (DVCC/DVSS and AVCC/AVSS) with dedicated LCD bias generation via R03–R33 pins and COM0–COM3 backplane outputs.

Key Specifications

Pinout & Package

Package: 64-pin Plastic Quad Flat Package (QFP), JEDEC MS-026AC, body size 14.0 mm × 14.0 mm, 0.8 mm lead pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F413IPM, the MSP430A023IPM offers identical peripheral set and power profile but with reduced Flash capacity - suitable for cost-sensitive, fixed-function meters. Against MSP430F412IPM, it is a functional twin with identical specifications and pin compatibility, differing only in marketing nomenclature and lifecycle status.

Availability

MSP430A023IPM is available at Aetrix Electronics and suitable for handheld instrumentation, industrial panel meters, and portable environmental sensors requiring stable component supply and long-term manufacturability.

Supply support for MSP430A023IPM 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 MSP430x41x product line targets ultra-low-power portable measurement systems, integrating LCD drivers, comparators, and precision timing to minimize external components in battery-operated instruments.

FAQ

What is the maximum operating frequency of the MSP430A023IPM?

The MSP430A023IPM supports a maximum MCLK frequency of 8 MHz, generated by the FLL+ module locking the internal DCO to a programmable multiple of ACLK (e.g., 32768 Hz crystal). This is confirmed in the SLAS340J datasheet Section 15 (Oscillator and System Clock) and validated across all MSP430x41x devices in the PM package.

Does the MSP430A023IPM include a built-in ADC?

No, the MSP430A023IPM does not integrate an analog-to-digital converter. It features an on-chip comparator (Comparator_A) for threshold detection but relies on external ADCs or resistor-divider networks for digitized analog measurements - consistent with the MSP430x412/F412 device class per SLAS340J Sections 4 and 15.

Can the MSP430A023IPM drive a 4-mux LCD display?

Yes, the MSP430A023IPM supports up to 96 segments with 4 backplanes (COM0–COM3), enabling static or 2-, 3-, or 4-mux LCD configurations. LCD functionality is enabled automatically via LCDCTL register settings, not port function select bits, as specified in SLAS340J Terminal Functions (Pages 5–8).

What debug interface does the MSP430A023IPM support?

The MSP430A023IPM supports JTAG debugging via TCK, TMS, TDI/TCLK, and TDO/TDI pins (Pins 57, 56, 55, 54) in the 64-pin QFP package. It also supports Spy-Bi-Wire (2-wire JTAG) for compact debug connections - both methods are fully documented in the MSP430x4xx Family User's Guide (SLAU056).

Is the MSP430A023IPM pin-compatible with other MSP430x41x devices in PM package?

Yes, the MSP430A023IPM shares identical pinout, electrical characteristics, and peripheral mapping with MSP430F412IPM and MSP430F413IPM in the 64-pin QFP (PM) package. All share the same terminal functions table (SLAS340J Pages 5–6), confirming full hardware compatibility for drop-in replacement.