Texas Instruments MSP430F1101AIDGVR

Overview

MSP430F1101AIDGVR from Texas Instruments is an ultralow-power 16-bit RISC mixed-signal microcontroller featuring 1 KB flash + 128 B RAM, 14 I/O pins, a 16-bit Timer_A with three capture/compare registers, on-chip analog comparator, and support for 1.8–3.6 V operation. It targets battery-powered sensor systems requiring sub-1 μA standby current and <6 μs wake-up.

For engineers reviewing the MSP430F1101AIDGVR datasheet, MSP430F1101AIDGVR pinout, MSP430F1101AIDGVR application, or MSP430F1101AIDGVR equivalent, key selection criteria include active-mode current at 1 MHz (≤200 μA @ 2.2 V), LPM3 standby current (≤1.0 μA @ 25°C), flash memory programmability via JTAG/BSL, and TVSOP-20 package compatibility with space-constrained portable designs.

Technical Context

The MSP430F1101AIDGVR implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations and high code efficiency. Its basic clock module integrates a digitally controlled oscillator (DCO), 32-kHz crystal support, and selectable ACLK/SMCLK/MCLK domains - all optimized for rapid low-power mode transitions.

Peripherals include a 16-bit Timer_A3 with three independent capture/compare registers, a slope-based analog comparator supporting single-slope A/D conversion on resistive sensors, and dual 8-bit I/O ports (P1: 8 pins; P2: 6 pins) with individually configurable direction, interrupt edge, and port function mapping.

Key Specifications

Pinout & Package

Package: 20-pin Thin Very Small Outline Package (TVSOP), body width 4.4 mm, lead pitch 0.65 mm, JEDEC MO-153 compliant. Thermal pad not present; no VSS connection required.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F1101AIDGVR, the MSP430F1121AIDGVR offers scalable memory within identical power/performance envelope, while the MSP430F2012IRSAT trades analog functionality for serial interface and smaller footprint - making each optimal for distinct subsystem constraints.

Availability

MSP430F1101AIDGVR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, smart utility meter interfaces, and industrial condition monitors requiring stable component supply and long-term lifecycle assurance.

Supply support for MSP430F1101AIDGVR 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 microcontroller innovation.

The MSP430x11x1(A) product line was designed specifically for ultralow-power portable measurement applications - emphasizing extended battery life, integrated analog peripherals, and rapid wake-up responsiveness in resource-constrained environments.

FAQ

What is the maximum operating frequency of the MSP430F1101AIDGVR at 3.6 V?

The MSP430F1101AIDGVR supports a maximum system clock (MCLK) frequency of 8 MHz at 3.6 V. This limit applies when executing code from flash memory and is constrained by both core timing and flash access latency. At lower supply voltages (e.g., 2.2 V), the maximum reliable frequency reduces to 4.15 MHz per the recommended operating conditions table in SLAS241I.

Does the MSP430F1101AIDGVR support in-system programming without external hardware?

Yes, the MSP430F1101AIDGVR supports in-system programming via its built-in bootstrap loader (BSL), which operates over UART using P1.1 (TX) and P2.2 (RX). No external programming voltage is required, and the BSL remains accessible even after flash security fuse programming - provided the correct password is supplied during entry sequence.

Can the analog comparator in the MSP430F1101AIDGVR perform true analog-to-digital conversion?

The MSP430F1101AIDGVR's Comparator_A module does not include a dedicated ADC, but it enables single-slope A/D conversion on resistive sensors by combining the comparator with Timer_A. The device measures unknown resistance against a known reference using charging time - a technique documented in TI application reports for thermistor and potentiometer interfaces.

What are the absolute maximum ratings for VCC and I/O voltage on the MSP430F1101AIDGVR?

The absolute maximum rating for VCC is −0.3 V to 4.1 V relative to VSS. For any I/O pin, voltage must remain between −0.3 V and VCC + 0.3 V. Exceeding these limits risks permanent damage. Note that the TEST pin may tolerate higher voltage during JTAG fuse blowing, but this is a one-time factory operation - not a user-accessible condition.

Is the MSP430F1101AIDGVR pin-compatible with other devices in the MSP430F11x1A family?

Yes, the MSP430F1101AIDGVR shares identical pinout and package (20-pin TVSOP) with MSP430F1111AIDGVR and MSP430F1121AIDGVR. All three support the same peripheral mapping, register layout, and electrical characteristics - enabling hardware reuse across memory variants without PCB redesign.