Texas Instruments MSPM0L1345TDGS28R

Overview

MSPM0L1345TDGS28R from Texas Instruments is an ultra-low-power 32-bit Arm® Cortex®-M0+ microcontroller operating up to 32 MHz, featuring 32 KB flash, 4 KB SRAM, a 12-bit 1.68-Msps ADC with 9 external channels, two zero-drift chopper op-amps (0.5 µV/°C drift), and integrated temperature sensor - deployed in battery-powered smart metering and portable medical sensors.

For engineers reviewing the MSPM0L1345TDGS28R datasheet, MSPM0L1345TDGS28R pinout, MSPM0L1345TDGS28R application, or MSPM0L1345TDGS28R equivalent, key selection criteria include its 28-pin VSSOP package, –40°C to 105°C temperature grade (T), 1.62–3.6 V supply range, STANDBY mode current of 1.0 µA with full SRAM retention, and analog-peripheral configurability across ADC/OPA/COMP/GPAMP.

Technical Context

The MSPM0L1345TDGS28R implements a single-core Arm Cortex-M0+ CPU with tightly coupled peripherals including a 3-channel DMA, event fabric for low-latency signal routing, and four 16-bit timers supporting 8 PWM outputs. Its analog subsystem integrates programmable gain (1–32×) into both OPA0 and OPA1, with dedicated internal connections to the 12-bit ADC and 8-bit reference DAC inside COMP0.

Power management includes five distinct low-power modes: RUN (71 µA/MHz), STOP (151 µA @ 4 MHz), STANDBY (1.0 µA with 32-kHz timer active and 3.2 µs wakeup), SHUTDOWN (61 nA with IO wakeup), and configurable voltage regulation via VCORE output - all coordinated by the PMU and clock module (SYSOSC ±1.2%, LFOSC ±3%).

Key Specifications

Pinout & Package

28-pin VSSOP (DGS) package, 7.1 mm × 4.9 mm body, 0.65 mm pitch, exposed thermal pad not present - optimized for space-constrained PCB layouts with standard surface-mount assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSPM0L1346TDGS28R, the MSPM0L1345TDGS28R trades 32 KB flash capacity for identical analog performance and lower cost; versus MSPM0L1305TDGS28R, it delivers full chopper OPA support essential for µV-level sensor conditioning - making it the optimal balance of analog capability, memory, and package compatibility.

Availability

MSPM0L1345TDGS28R is available at Aetrix Electronics and suitable for battery charging, smart metering, and portable medical devices requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MSPM0L1345TDGS28R 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 and embedded processing solutions, with over 90 years of innovation in power management, signal chain, and microcontroller technologies.

The MSPM0L134x series belongs to TI's ultra-low-power MSPM0 MCU family, designed specifically for cost-sensitive, battery-operated measurement applications demanding high analog integration, extended temperature operation, and minimal standby current.

FAQ

What is the maximum operating frequency and core architecture of the MSPM0L1345TDGS28R?

The MSPM0L1345TDGS28R features an Arm Cortex-M0+ CPU core with a maximum operating frequency of 32 MHz. This architecture delivers efficient 32-bit processing with low gate count and power consumption, validated across the full –40°C to 105°C temperature range. The SYSOSC internal oscillator achieves ±1.2% accuracy, eliminating the need for an external crystal in most timing-critical applications.

How many analog input channels does the MSPM0L1345TDGS28R support, and what ADC resolution is provided?

The MSPM0L1345TDGS28R supports 9 external analog input channels (A0–A8) through its 12-bit, 1.68-Msps successive-approximation ADC. This configuration is confirmed for the DGS28 package variant and enables simultaneous sampling of multiple sensors without external multiplexing - critical for time-aligned measurements in energy metering and biomedical applications.

Does the MSPM0L1345TDGS28R include integrated operational amplifiers, and what are their key specifications?

Yes, the MSPM0L1345TDGS28R integrates two zero-drift, zero-crossover chopper operational amplifiers (OPA0 and OPA1). Each offers 0.5 µV/°C input offset drift, 6-pA input bias current, and programmable gain from 1× to 32× - enabling high-precision DC signal conditioning for strain gauges, thermopiles, and other low-level analog sensors without external trimming.

What low-power modes are supported by the MSPM0L1345TDGS28R, and what is the lowest achievable current draw?

The MSPM0L1345TDGS28R supports RUN, STOP, STANDBY, and SHUTDOWN modes. Its lowest active-retention mode is STANDBY at 1.0 µA with the 32-kHz timer running, full SRAM/register retention, and 3.2 µs wakeup latency. SHUTDOWN draws just 61 nA with IO wakeup capability - enabling decade-scale battery operation in intermittently active sensor nodes.

Is the MSPM0L1345TDGS28R pin-compatible with other members of the MSPM0L13xx family in the same 28-pin VSSOP package?

Yes, the MSPM0L1345TDGS28R shares identical pinout and footprint with MSPM0L1346TDGS28R, MSPM0L1305TDGS28R, and MSPM0L1306TDGS28R in the 28-pin VSSOP (DGS) package. All variants use the same mechanical dimensions, thermal pad absence, and signal mapping - allowing hardware reuse across flash-size and analog-feature variants during design iteration.