Texas Instruments MSP430G2313IN20

Overview

MSP430G2313IN20 from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller in 20-pin PDIP packaging, featuring 4 KB Flash, 256 B RAM, two 16-bit Timer_A modules with three capture/compare registers each, an 8-channel analog comparator (Comp_A+), and USCI_A0/USCI_B0 for UART, SPI, and I²C communication. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes requiring fast wake-up (<1 µs) and capacitive-touch I/O.

For engineers reviewing the MSP430G2313IN20 datasheet, MSP430G2313IN20 pinout, MSP430G2313IN20 application, or MSP430G2313IN20 equivalent, key selection criteria include its 4 KB Flash/256 B RAM configuration, absence of ADC10 (distinguishing it from G2x53 variants), 20-pin PDIP package compatibility with legacy through-hole prototyping, and support for Spy-Bi-Wire programming and brownout detection.

Technical Context

The MSP430G2313IN20 implements a 16-bit CPU with seven addressing modes and 51 instructions, integrated with dual 16-bit Timer_A peripherals (TA0 and TA1), each with three capture/compare registers and independent clock sources (ACLK, SMCLK, MCLK). Its clock system includes a digitally controlled oscillator (DCO), internal LF oscillator, and external crystal support (32 kHz).

It supports five low-power modes (LPM0–LPM4), achieving 0.1 µA off-mode current with RAM retention and sub-1 µs wake-up from standby. The device lacks ADC10 - confirmed by Table 1 and repeated notes stating "ADC10 is available on MSP430G2x53 devices only" - and instead relies on Comp_A+ for analog signal comparison or slope A/D conversion.

Key Specifications

Pinout & Package

Package: 20-pin PDIP (N20), 7.62 mm × 20.32 mm body, 2.54 mm pitch, through-hole mounting compatible with breadboards and legacy PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSP430G2313IPW20, the MSP430G2313IN20 offers identical functionality with through-hole compatibility for rapid prototyping and serviceability; compared with MSP430G2213IN20, it doubles Flash capacity for more complex sensor fusion or communication protocols while retaining the same low-power profile and pinout.

Availability

MSP430G2313IN20 is available at Aetrix Electronics and suitable for smart thermostat sensor nodes, industrial equipment status monitors, portable medical pulse oximeters, and energy harvesting environmental loggers requiring stable component supply across long-lifecycle designs.

Supply support for MSP430G2313IN20 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 delivering analog, embedded processing, and connectivity solutions for industrial, automotive, and consumer markets.

The MSP430G2xx family was designed specifically for ultra-low-power mixed-signal applications where extended battery life, small form factor, and integrated analog peripherals are essential - exemplified by the MSP430G2313IN20's optimized balance of Flash, comparator resources, and PDIP accessibility.

FAQ

Does the MSP430G2313IN20 include an analog-to-digital converter (ADC)?

No, the MSP430G2313IN20 does not include the ADC10 module. Documentation explicitly states "ADC10 is available on MSP430G2x53 devices only", and Table 1 confirms zero ADC10 channels for all MSP430G2x13 variants including MSP430G2313IN20. Analog signal conditioning relies solely on the 8-channel Comparator_A+ for threshold detection or slope A/D conversion.

What is the maximum operating frequency of the MSP430G2313IN20?

The MSP430G2313IN20 supports internal DCO frequencies up to 16 MHz, as confirmed by the "Internal Frequencies up to 16 MHz With Four Calibrated Frequency" specification in the features list and functional block diagrams. This enables high-speed peripheral operation and efficient code execution while maintaining ultra-low power in active mode (230 µA at 1 MHz, 2.2 V).

Can the MSP430G2313IN20 be programmed using standard JTAG?

The MSP430G2313IN20 supports Spy-Bi-Wire (SBW), a 2-pin subset of JTAG, via pins RST/NMI/SBWTDIO (Pin 16) and TEST/SBWTCK (Pin 17). Full 4-wire JTAG is not supported; SBW provides equivalent debug and programming capability with reduced pin count and PCB footprint, as documented in the "On-Chip Emulation Logic With Spy-Bi-Wire Interface" feature and pin function table.

What package type does the MSP430G2313IN20 use, and is it RoHS compliant?

The MSP430G2313IN20 uses a 20-pin plastic dual in-line package (PDIP, N20 suffix), with lead spacing of 2.54 mm and body dimensions of 7.62 mm × 20.32 mm. Texas Instruments certifies all MSP430G2xx devices, including MSP430G2313IN20, as RoHS compliant per TI's official product change notices and packaging documentation.

How many I/O pins does the MSP430G2313IN20 provide, and which ports are available?

The MSP430G2313IN20 provides 16 general-purpose I/O pins across Ports P1 and P2 (8 pins each), as shown in the 20-pin PDIP pinout diagram. Port P3 is not available in the 20-pin package - confirmed by the note "Port P3 is available on 28-pin and 32-pin devices only" in the functional block diagrams and pin function tables.