Texas Instruments MSP430F2101IDGVR

Overview

MSP430F2101IDGVR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 1 KB Flash, 128 B RAM, a 16-bit Timer_A with three capture/compare registers, an on-chip analog comparator for slope A/D conversion, and support for 1.8–3.6 V operation. It targets battery-powered sensor nodes and portable measurement systems requiring sub-1 µs wake-up and <0.1 µA off-mode current.

For engineers reviewing the MSP430F2101IDGVR datasheet, MSP430F2101IDGVR pinout, MSP430F2101IDGVR application, or MSP430F2101IDGVR equivalent, key selection criteria include its 20-pin TVSOP (DGV) package, calibrated DCO enabling 1–16 MHz operation without external crystal, integrated comparator-based ADC capability, and JTAG + BSL programming support.

Technical Context

The MSP430F2101IDGVR implements a 16-bit RISC CPU with constant generators and seven addressing modes, executing register-to-register instructions in one CPU cycle. Its basic clock module integrates a digitally controlled oscillator (DCO), 32-kHz crystal input (XIN/XOUT), and selectable high-frequency crystal support - all configurable via BCSCTL registers.

Power management is handled through six operating modes (AM, LPM0–LPM4), with LPM4 drawing only 0.1 µA at 2.2 V while retaining RAM. The analog comparator supports both direct signal comparison and slope-based A/D conversion using Timer_A, eliminating need for external ADC in low-resolution sensing applications.

Key Specifications

Pinout & Package

Package: 20-pin Thin Shrink Small-Outline Package (TVSOP), body size 4.4 mm × 6.5 mm, pitch 0.65 mm, exposed pad not present (DGV variant).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430F2101IDGVR, MSP430F2012IPW omits analog comparator functionality critical for sensor front ends, while MSP430FR2111IPW trades Flash density for FRAM's instant-write capability and lower active power - making it better suited for high-frequency logging but less optimal for cost-sensitive, static-code deployments.

Availability

MSP430F2101IDGVR is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, smart utility meters, and industrial condition monitors requiring stable component supply and long-term lifecycle support.

Supply support for MSP430F2101IDGVR 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 90 years of innovation in low-power design.

The MSP430F2101IDGVR belongs to TI's MSP430x21x1 ultra-low-power microcontroller product line, engineered specifically for battery-operated sensing, measurement, and telemetry applications where nanowatt-level power efficiency and integrated analog functionality are mandatory.

FAQ

What is the maximum operating frequency of the MSP430F2101IDGVR?

The MSP430F2101IDGVR supports up to 16 MHz MCLK operation when VCC ≥3.3 V, enabled by its factory-calibrated DCO. At 2.7 V, maximum frequency is 12 MHz; at 1.8 V, it is limited to 6 MHz per TI's recommended operating conditions. All frequencies are achievable without external crystal due to internal DCO calibration stored in Info Memory segment A.

Does the MSP430F2101IDGVR support in-system programming?

Yes, the MSP430F2101IDGVR supports in-system programming via both JTAG (using MSP-FET430UIF or compatible tools) and the onboard bootstrap loader (BSL) accessible through UART pins P1.1 (TX) and P2.2 (RX). BSL enables field firmware updates without dedicated debug hardware, provided security fuse remains unblown.

What package type does MSP430F2101IDGVR use?

The MSP430F2101IDGVR uses a 20-pin Thin Shrink Small-Outline Package (TVSOP), designated as DGV in TI's ordering nomenclature. It measures 4.4 mm × 6.5 mm with 0.65 mm lead pitch and is RoHS-compliant. This package is pin-compatible with other MSP430F21x1 variants in TSSOP (PW) and SOWB (DW) packages but differs in footprint and thermal characteristics.

Can the MSP430F2101IDGVR perform analog-to-digital conversion?

Yes, the MSP430F2101IDGVR performs analog-to-digital conversion using its integrated Comparator_A+ module in slope A/D mode. By charging a capacitor through a known current and measuring time to threshold via Timer_A, it achieves effective 10–12 bit resolution without external ADC components - confirmed in TI's SLAS439F datasheet Section 1.1 and Functional Block Diagram.

What is the purpose of the TEST pin on the MSP430F2101IDGVR?

The TEST pin (Pin 1) on the MSP430F2101IDGVR selects JTAG test mode during programming and connects to the device protection fuse. When driven high during power-up, it enables JTAG interface access; it also serves as the fuse blow voltage input (VFB) for disabling JTAG permanently. Its function is defined in Table 2 of SLAS439F and must be pulled low via 10 kΩ resistor in normal operation to prevent unintended test mode entry.