Texas Instruments M0L1304QRGERQ1

Overview

M0L1304QRGERQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified Arm® Cortex®-M0+ microcontroller operating up to 32 MHz, with 16 KB flash, 2 KB SRAM, a 12-bit 1.68-Msps ADC (9 external channels), two zero-drift chopper op-amps, and integrated temperature sensing - deployed in steering wheel systems and door handle modules.

For engineers reviewing the M0L1304QRGERQ1 datasheet, M0L1304QRGERQ1 pinout, M0L1304QRGERQ1 application, or M0L1304QRGERQ1 equivalent, key selection criteria include its 24-pin VQFN package, 1.62–3.6 V supply range, STANDBY mode at 1.0 µA with 32-kHz timer retention, and support for LIN, I²C, SPI, and UART protocols in automotive body electronics.

Technical Context

The M0L1304QRGERQ1 integrates a 32-bit Arm Cortex-M0+ CPU with on-chip SYSOSC (±1.2% accuracy) and LFOSC (±3%), eliminating need for external crystals. Its analog subsystem includes programmable gain (1–32×) for OPA0/OPA1, a dedicated 8-bit reference DAC for COMP0, and configurable internal VREF (1.4 V or 2.5 V).

Digital intelligence includes a 3-channel DMA, four 16-bit timers supporting 8 PWM channels, windowed watchdog, and event fabric enabling low-power peripheral coordination. All communication interfaces - two UARTs, two I²Cs, one SPI - retain wakeup capability from STOP/STANDBY modes.

Key Specifications

Pinout & Package

24-pin VQFN (RGE) package with 4 mm × 4 mm body and wettable flanks; thermal pad recommended to be connected to VSS.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MSPM0L1305QRGERQ1 and STM32G031K8T6, the M0L1304QRGERQ1 delivers optimal balance of automotive qualification, integrated analog front-end, and minimal footprint - making it preferred for cost-sensitive, analog-intensive modules where flash >16 KB is unnecessary.

Availability

M0L1304QRGERQ1 is available at Aetrix Electronics and suitable for automotive body electronics, steering wheel systems, and door handle modules requiring stable component supply across extended temperature and long product lifecycles.

Supply support for M0L1304QRGERQ1 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 company delivering analog and embedded processing solutions for automotive, industrial, and personal electronics markets.

The MSPM0L130x-Q1 product line targets cost-optimized, ultra-low-power automotive microcontrollers with integrated analog peripherals - designed specifically for body electronics, occupancy detection, and electromechanical actuation control.

FAQ

What is the maximum operating frequency and core architecture of the M0L1304QRGERQ1?

The M0L1304QRGERQ1 features an Arm Cortex-M0+ CPU core with a maximum operating frequency of 32 MHz. This architecture provides deterministic real-time performance and efficient code density for automotive control tasks. The device uses an internal SYSOSC with ±1.2% accuracy, eliminating the need for an external crystal oscillator in most applications. Its 32-bit instruction set and Thumb-2 encoding support compact, high-performance firmware deployment in space- and power-constrained modules.

Does the M0L1304QRGERQ1 support AEC-Q100 qualification and what temperature grade does it meet?

Yes, the M0L1304QRGERQ1 is AEC-Q100 qualified for automotive applications and meets Grade 1 specifications, operating reliably from −40°C to +125°C ambient temperature. This qualification covers stress testing for temperature cycling, humidity, ESD, and other environmental factors defined in the AEC-Q100 standard. The device's on-chip temperature sensor, zero-drift op-amps, and robust power management ensure functional stability across this full range - critical for under-hood and cabin-mounted modules.

How many analog input channels does the M0L1304QRGERQ1 ADC support, and what is its resolution and sampling rate?

The M0L1304QRGERQ1 integrates a single 12-bit analog-to-digital converter (ADC) with up to 9 total external analog input channels (A0–A8). It achieves a maximum sampling rate of 1.68 million samples per second (Msps), enabling high-speed acquisition for dynamic sensor signals. The ADC supports configurable internal voltage references of either 1.4 V or 2.5 V, removing dependency on external reference ICs. This combination makes the M0L1304QRGERQ1 well-suited for precision analog sensing in applications such as capacitive proximity detection and potentiometer-based position feedback.

What low-power modes are available on the M0L1304QRGERQ1, and what is the lowest achievable current draw?

The M0L1304QRGERQ1 offers four optimized low-power modes: RUN (71 µA/MHz), STOP (151 µA at 4 MHz), STANDBY (1.0 µA with 32-kHz timer running and full SRAM retention), and SHUTDOWN (61 nA with IO wakeup capability). In STANDBY mode, the device retains all register and SRAM contents, supports wakeup in 3.2 µs, and maintains a 32-kHz timer - essential for periodic sensing in battery-powered vehicle entry systems. The SHUTDOWN mode enables ultra-low leakage for long-term storage or infrequent event detection.

Which communication interfaces are integrated into the M0L1304QRGERQ1, and do they support automotive protocols?

The M0L1304QRGERQ1 integrates two UARTs (one supporting LIN, IrDA, DALI, Smart Card, and Manchester), two I²C interfaces (one FM+ capable at 1 Mbit/s, both supporting SMBus/PMBus), and one SPI interface (up to 16 Mbit/s). Both UARTs and I²C peripherals retain wakeup capability from STOP and STANDBY modes. The native LIN support in UART0/UART1 enables direct connection to LIN transceivers without protocol translation firmware - simplifying compliance with LIN 2.2A in body control networks and reducing BOM cost in modules like door handles and seat controls.