MSPM0L1305-Q1 - Automotive 32MHz Cortex-M0+ MCU | Texas Instruments
MPN： MSPM0L1305-Q1 ✓ 啟用中MSPM0L1305-Q1 概覽
What is an automotive mixed-signal microcontroller? A microcontroller (MCU) is a compact integrated circuit that combines a processor core, memory, and programmable input/output peripherals onto a single chip. The MSPM0 family belongs to the ultra-low-power, highly integrated 32-bit MSPM0 MCU series built around the enhanced Arm Cortex-M0+ core platform. These devices provide high-performance analog peripherals integration, enabling them to interface directly with sensors and actuators while reducing system component count and overall bill-of-materials cost.
Key features of the MSPM0L1305-Q1 include a 12-bit analog-to-digital converter (ADC) with up to 1.68 Msps sampling rate, a zero-drift low-power operational amplifier, and a power-on reset/brown-out reset circuit for robust startup. The device also features a comprehensive clock system with an internal 32 MHz oscillator, capable of ±3% accuracy without external timing components. The MCU is offered in a 24-pin VQFN (RGE) package, measuring 4x4 mm, and an ultra-small 16-pin SOT-23-THIN package for space-constrained automotive applications.
The MSPM0L1305-Q1 supports a variety of low-power modes, allowing system designers to meet strict automotive power budgets. Its peripherals include multiple timers, a UART, SPI, I2C interfaces, and a LIN transceiver, enabling seamless connectivity in body control modules, sensor interfaces, and battery management systems.
For design considerations, it is crucial to decouple the VDD and VDDIO pins with ceramic capacitors to ensure stable operation. The device's internal voltage regulator requires an external bypass capacitor for reliable operation. With its high-temperature operation and robust ESD protection, the MSPM0L1305-Q1 delivers dependable performance in harsh automotive environments.
直接替換替代品，適用於 MSPM0L1305-Q1 — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
MSPM0L1305SDYYR
✅ 直接替換📋 參考替代品（不在目錄中）
MSPM0L1305TRGER
✅ 直接替換📋 參考替代品（不在目錄中）
MSPM0L1305
✅ 直接替換📋 參考替代品（不在目錄中）
STM32F031K6U6
⚡ 相同封裝 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →ATSAMD21G18A-AU
⚡ 相同封裝 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →MSPM0L1305-Q1 最大額定值與電氣特性
| Core Processor | ARM Cortex-M0+ |
| Core Size | 32-Bit |
| Speed | 32 MHz |
| Program Memory Size | 32 KB (32K x 8) |
| Program Memory Type | FLASH |
| RAM Size | 4 KB |
| ADC | 12-bit, 1.68 Msps |
| Operational Amplifier | 1x OPA (zero-drift) |
| Communication Interfaces | UART, SPI, I2C, LIN |
| 供應電壓 | 1.62 V to 3.6 V |
| 工作溫度 | -40°C to +125°C (Grade 1) |
| 封裝 | 24-VQFN (4x4), 16-SOT-23-THIN |
| 安裝類型 | Surface Mount |
| AEC-Q100 Qualified | Yes (Grade 1) |
| RoHS 狀態 | Compliant |
MSPM0L1305-Q1 腳位配置
| 腳位 1 | VDD — Power supply input |
| 腳位 2 | VSS — Ground |
| 腳位 3 | PA0 — General purpose I/O / ADC input |
| 腳位 4 | PA1 — General purpose I/O / UART TX |
| 腳位 5 | PA2 — General purpose I/O / SPI CLK |
| 腳位 6 | PA3 — General purpose I/O / SPI MOSI |
| 腳位 7 | PA4 — General purpose I/O / I2C SDA |
| 腳位 8 | PA5 — General purpose I/O / I2C SCL |
| 腳位 9 | PA6 — General purpose I/O / OPA input |
| 腳位 10 | PA7 — General purpose I/O / OPA output |
| 腳位 11 | PB0 — General purpose I/O / ADC input |
| 腳位 12 | PB1 — General purpose I/O / LIN TX |
| 腳位 13 | PB2 — General purpose I/O / LIN RX |
| 腳位 14 | PB3 — General purpose I/O / PWM |
| 腳位 15 | PB4 — General purpose I/O / PWM |
| 腳位 16 | PB5 — General purpose I/O / Timer input |
| 腳位 17 | PB6 — General purpose I/O / UART RX |
| 腳位 18 | PB7 — General purpose I/O / SPI MISO |
| 腳位 19 | NRST — Reset input (active low) |
| 腳位 20 | VDDIO — I/O power supply |
| 腳位 21 | SWCLK — Serial wire debug clock |
| 腳位 22 | SWDIO — Serial wire debug data I/O |
| 腳位 23 | VREF+ — ADC reference voltage positive input |
| 腳位 24 | VREF- — ADC reference voltage negative input |
典型應用
MSPM0L1305-Q1 適用於 6 應用s: Automotive Body Control Modules, Sensor Interface, Automotive Lighting and LED Control, Battery Management System Supervision, Industrial Sensor Nodes, Smart Body Access Systems.
Automotive Body Control Modules
The MSPM0L1305-Q1 is ideal for body control modules (BCM) due to its AEC-Q100 Grade 1 qualification, -40°C to +125°C operation, and LIN communication. Its 12-bit ADC enables direct interfacing with seat position sensors, door lock actuators, and lighting control. The MCU's 32 MHz core provides sufficient processing power for multi-rail diagnostics and control loops. The 1.62V-3.6V supply range allows direct connection to the automotive 3.3V rail, simplifying power design. With its integrated LIN transceiver, the device reduces BOM cost by eliminating external communication ICs.
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Sensor Interface
This MCU integrates a 12-bit ADC and zero-drift operational amplifier, making it a perfect fit for automotive sensor interfaces such as pressure, temperature, and position sensors. The OPA can amplify low-level sensor signals while the ADC digitizes them at up to 1.68 Msps. With its low-power modes, the MCU can sleep between sensor readings, meeting rigorous automotive power budgets. Additionally, the SPI and I2C interfaces allow connection to digital sensors, while the LIN interface can report sensor data to a central ECU. This reduces the need for companion ICs, cutting system cost and PCB area.
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Automotive Lighting and LED Control
The MSPM0L1305-Q1 can control automotive exterior and interior lighting systems. With its PWM-capable timers, it provides smooth dimming for LED tail lamps and ambient lighting. The MCU's LIN interface supports lighting commands from the body control module, enabling centralized management. Its noise-immune ADC can monitor LED current feedback via an external current sense resistor, facilitating closed-loop regulation. The compact VQFN or SOT-23 package fits into tight headlamp and interior lighting assemblies, while the AEC-Q100 qualification ensures reliable operation under hot and vibration-prone conditions.
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Battery Management System Supervision
For battery management systems (BMS), the MSPM0L1305-Q1 serves as a local supervisor that monitors cell voltages and temperatures. Its 12-bit ADC can measure voltage across a sense resistor with the OPA providing amplification for small differential signals. The MCU communicates with a main BMS controller via LIN or UART. Operating from 1.62V to 3.6V, it can be powered directly from a reference rail in the sensing circuit. Its low-power modes ensure minimal drain on the battery pack, which is critical for long-term storage and standby operation.
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Industrial Sensor Nodes
The MSPM0L1305-Q1 is well-suited for industrial sensor nodes requiring low power and mixed-signal integration. Its 32 MHz Cortex-M0+ core handles data acquisition and processing, while the integrated ADC and OPA interface directly with industrial sensors. The wide supply voltage range of 1.62V to 3.6V permits operation from 2-cell alkaline or Li-ion batteries. The UART and I2C interfaces enable compatibility with industrial gateways and PLCs. With its robust design and extended temperature range, this MCU delivers reliable performance in factory automation and process control environments.
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Smart Body Access Systems
In smart body access systems, the MSPM0L1305-Q1 controls keyless entry and immobilizer functions. Its LIN interface communicates with the central access controller, switching between drive and park modes. The MCU's low-power consumption allows extended battery operation for passive key fob detection. Additionally, the integrated ADC senses capacitive proximity signals for touchless entry. With AEC-Q100 qualification, it withstands the harsh automotive environment while enabling the precise timing needed for radio frequency (RF) wake-up and authentication protocols.
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推薦產品摘要
工程參考資料，適用於 MSPM0L1305-Q1 — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | MSPM0L1305SDYYR | MSPM0L1305TRGER | MSPM0L1306-Q1 | STM32F031K6U6 |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | STMicroelectronics |
| Package | 24-VQFN (4x4) / 16-SOT-23-THIN | 16-SOT-23-THIN | 24-VQFN (4x4) | 24-VQFN (4x4) | 24-VQFN (4x4) |
| Core Clock Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 48 MHz |
| Flash Memory | 32 KB | 32 KB | 32 KB | 64 KB | 32 KB |
| SRAM | 4 KB | 4 KB | 4 KB | 8 KB | 4 KB |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit |
| Automotive Qualification | Yes (AEC-Q100 Grade 1) | Yes | Yes | Yes | No |
| LIN Interface | Yes | Yes | Yes | Yes | No |
主要差異化特點
- AEC-Q100 Grade 1 qualification with -40°C to 125°C operation (對比STM32F031K6U6)
- Integrated zero-drift OPA and LIN transceiver (對比MSPM0L1305SDYYR)
- Ultra-low-power modes for battery applications (對比ATSAMD21G18A-AU)
設計說明
Ensure a 100 nF decoupling capacitor is placed close to the VDD pin and a 10 µF bulk capacitor on the supply rail. The internal voltage regulator requires an external bypass capacitor of at least 1 µF. A 100 nF capacitor should also be placed on VDDIO to prevent I/O switching noise from affecting the internal analog circuitry.
At 32 MHz with all peripherals active, the MSPM0L1305-Q1 can dissipate up to 50 mW. The VQFN package thermal resistance is approximately 45°C/W. Design the PCB with a thermal pad connected to a ground plane to help dissipate heat. For ambient temperatures above 105°C, reduce the clock frequency or use low-power modes to keep the junction temperature below 125°C.
Do not route high-frequency digital signals near the ADC reference input to avoid noise coupling. Use the internal reference for moderate accuracy or connect an external reference to VREF+ for precision. When using the LIN interface, ensure proper hardware handshake with the transceiver to avoid bus conflicts during multi-node communication. Always initialize the OPA before enabling the ADC to avoid false conversions.
合規資訊
AEC-Q100 qualified for automotive applications, Grade 1. RoHS compliant per TI product page.
