STM32L152R6T6A - 32KB Flash Cortex-M3 MCU w/ USB & LCD
料号： STM32L152R6T6A ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $7.45 | $7.45 |
| 10 | $6.5 | $65.00 |
| 100 | $5.1 | $510.00 |
| 500 | $4.2 | $2,100.00 |
| 1,000 | $3.55 | $3,550.00 |
| 2,500 | $3.1 | $7,750.00 |
STM32L152R6T6A 概述
An ARM Cortex-M3 microcontroller is a 32-bit RISC processor core designed for embedded applications that require deterministic real-time response, low interrupt latency, and high code density through the Thumb-2 instruction set. In the broader taxonomy, the STM32L152 sits at the intersection of microcontroller (MCU), ultra-low-power MCU, mixed-signal MCU (with LCD + USB), and 32-bit MCU. The STM32L1 family is the silicon ancestor of the STM32L0, L4, L4+, U5 and H5 lines, all sharing ST's ultra-low-power工艺 philosophy and the Cortex-M lineage.
Key differentiating features include five low-power modes (Sleep, Low-Power Sleep, Stop with RTC, Standby with RTC, and Stop without RTC) reaching 1.4 µA in Stop-with-RTC, an integrated LCD driver for up to 8x40 segments directly driving glass, a 12-bit ADC and 12-bit DAC, multiple timers, and a USB 2.0 full-speed device/host/OTG controller. The embedded voltage regulator, multiple DMA controllers, and the standard STM32 peripheral set (USART, SPI, I2C, USB, GPIO) make it a system-in-package for many battery-powered designs.
Architecturally, the Cortex-M3 core runs up to 32 MHz with 1.25 DMIPS/MHz, paired with ST's ultra-low-power工艺 and a 1.8 V internal core domain. The ART Accelerator (no instruction-cache pre-fetch on L1, but a flash-accelerator block) keeps execution deterministic from Flash, and the MPU supports up to 8 regions. Compared with the older STM32F1 series, the L1 trades raw MHz for dramatically lower active and standby power.
Typical applications include battery-powered metering (gas/water/heat) with direct LCD readout, portable medical sensors, fitness wearables, GPS asset trackers, and industrial sensor nodes requiring USB-CDC for service. The integrated LCD driver saves a costly external charge-pump driver and lets a single chip display digits on a static, multiplexed or capacitive-effect glass.
When designing with this device, choose the LQFP-64 (R suffix in the line-up) over QFN if you need hand-rework-friendly pins or expect hand-prototype workflows; QFN variants are footprint-compatible at the die level but require careful PCB thermal design. Verify the LCD glass type (static, 1/2, 1/3, 1/4 duty, and bias) and segment count early in the schematic phase - the LCD peripheral supports up to 8 commons, but pin budget and alternate-function remap must be planned.
This page synthesizes distributor pricing, drop-in alternatives across the STM32L1 line, automotive-grade sibling MPNs, and practical low-power design notes that go beyond what is on the ST datasheet alone.
直接替换替代料： STM32L152R6T6A ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
STM32L152R8T6A
✅ 直接替换📋 参考替代料（不在目录中）
STM32L152RBT6A
✅ 直接替换📋 参考替代料（不在目录中）
STM32L151R6T6A
✅ 直接替换📋 参考替代料（不在目录中）
STM32L152R6T6
✅ 直接替换📋 参考替代料（不在目录中）
STM32L152R6T6A 最大额定值与电气特性
| Core | ARM Cortex-M3 32-bit RISC |
| Maximum CPU Frequency | 32 MHz |
| Flash Memory | 32 KB |
| SRAM | 10 KB |
| True EEPROM | 4 KB |
| Operating Voltage Range | 1.65 V to 3.6 V |
| 封装 | 64-pin LQFP (10x10 mm) |
| Integrated LCD Driver | Up to 8x40 segments |
| USB | USB 2.0 Full-Speed (device/host/OTG) |
| ADC | 1x 12-bit, up to 24 channels |
| DAC | 1x 12-bit |
| Low-Power Modes | Sleep, Low-Power Sleep, Stop with RTC, Standby, Stop w/o RTC |
| Stop Current (with RTC) | 1.4 µA typical |
| 工作温度范围 | -40 °C to +85 °C (industrial) |
| AEC-Q100 Grade | Yes ("-A" automotive suffix) |
| RoHS 状态 | Compliant |
STM32L152R6T6A 64-pin lqfp (10x10 mm) 引脚配置指南
STM32L152R6T6A（64-pin lqfp (10x10 mm) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： STM32L152R6T6A.
请参阅 数据手册 以查看完整引脚配置。
典型应用
STM32L152R6T6A 适用于 7 应用s: Battery-Powered Utility Metering with LCD Display, Portable Medical Sensor with USB-CDC Telemetry, Wearable Fitness Tracker with Always-On LCD, Industrial Wireless Sensor Node, Automotive HVAC Control Panel with LCD, GPS Asset Tracker with LCD Status Display, Smart Home Thermostat with Touch + LCD UI.
Battery-Powered Utility Metering with LCD Display
The STM32L152R6T6A fits battery-powered electricity, gas, and water meters because its 1.4 µA Stop-with-RTC current enables 10-15 year coin-cell operation while the integrated 8x40-segment LCD controller directly drives the meter's glass digit display. The Cortex-M3 core at 32 MHz can compute metering algorithms (e.g., RMS current/voltage, time-of-use billing) between sensor reads, while the 12-bit ADC provides adequate resolution for current-sense and voltage-divider inputs. Unlike the older STM32L1 variants without LCD, the L152 eliminates the external charge-pump driver and reduces BOM by 2-3 components.
推荐
Portable Medical Sensor with USB-CDC Telemetry
The STM32L152R6T6A serves portable medical devices (pulse oximeters, glucose meters, single-lead ECG patches) because its 1.65 V minimum supply supports 2x AA alkaline or coin-cell batteries, while the integrated USB 2.0 Full-Speed OTG enables tethered charging and CDC-class data upload to a clinician's PC without an external transceiver. The 12-bit ADC and 12-bit DAC handle the analog sensor chain directly, and 10 KB SRAM is sufficient for waveform buffers and DSP pre-processing. The AEC-Q100 (-A suffix) variant supports medical-grade qualification pipelines requiring similar automotive process rigor.
推荐
Wearable Fitness Tracker with Always-On LCD
Wearable fitness bands and watches can leverage the STM32L152R6T6A's integrated LCD controller to drive a 4-digit always-on display of step count, heart rate, or battery status without an external OLED power penalty. Stop-with-RTC mode at 1.4 µA allows the device to keep time and update the LCD on a 1 Hz RTC interrupt while the main core sleeps. The 32 KB Flash is sufficient for a step-counter algorithm, BLE radio driver interface, and LCD formatting routines, while the 32 MHz Cortex-M3 runs the DSP math for accelerometer step detection.
推荐
Industrial Wireless Sensor Node
Industrial sensor nodes (temperature, pressure, vibration) on a WirelessHART or sub-GHz radio link use the STM32L152R6T6A to manage duty-cycled RF transmissions, sensor reads, and battery monitoring. The 1.65-3.6 V supply range supports direct connection to industrial 24 V bus through a step-down converter, while Stop-with-RTC current of 1.4 µA extends battery life between service intervals. The 32 KB Flash holds the radio stack (IEEE 802.15.4e or proprietary), and the 4 KB true EEPROM stores calibration constants with 100 k endurance cycles.
推荐
Automotive HVAC Control Panel with LCD
PLACEHOLDER
推荐
GPS Asset Tracker with LCD Status Display
GPS asset trackers benefit from the STM32L152R6T6A's integrated USB for charging and configuration, the 8x40 LCD controller for on-device status display (battery, signal strength, last-fix time), and the 1.4 µA Stop-mode current for multi-year standby. The Cortex-M3 at 32 MHz parses NMEA sentences and runs the position-update decision logic, while the 4 KB EEPROM stores last-known position and trip history with 100 k write endurance. Compared with a discrete MCU + external LCD driver + external USB PHY design, the L152 reduces the BOM by 5-7 components and saves 50-100 mm² of PCB area.
推荐
Smart Home Thermostat with Touch + LCD UI
Smart home thermostats use the STM32L152R6T6A to drive a 4-8 digit LCD that displays temperature, humidity, and schedule, while a capacitive touch slider (TSC peripheral) handles user input without mechanical buttons. The integrated 12-bit ADC reads thermistor or RTD temperature sensors with 0.1 °C resolution after averaging, and the USB port enables Wi-Fi module firmware update and thermostat commissioning via a service app. The 1.65-3.6 V supply accepts a 24 VAC HVAC supply through a half-wave rectifier and LDO, supporting common-rail smart thermostat installations.
推荐
推荐产品汇总
工程参考数据： STM32L152R6T6A ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | STM32L152R8T6A | STM32L152RBT6A | STM32L151R6T6A | STM32L152R6T6 |
|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | LQFP-64 (10x10 mm) | LQFP-64 (10x10 mm) - same | LQFP-64 (10x10 mm) - same | LQFP-64 (10x10 mm) - same | LQFP-64 (10x10 mm) - same |
| Flash | 32 KB | 64 KB (+100%) | 128 KB (+300%) | 32 KB (same) | 32 KB (same) |
| SRAM | 10 KB | 10 KB | 16 KB | 10 KB | 10 KB |
| LCD Controller | Yes (8x40 segments) | Yes (8x40) | Yes (8x40) | No | Yes (8x40) |
| USB | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG | USB 2.0 FS OTG |
| Automotive Grade (-A suffix) | Yes (AEC-Q100) | Yes | Yes | Yes | No (industrial) |
| Core / Frequency | Cortex-M3 / 32 MHz | Cortex-M3 / 32 MHz | Cortex-M3 / 32 MHz | Cortex-M3 / 32 MHz | Cortex-M3 / 32 MHz |
关键差异点
- Integrated LCD + USB in a single 32 KB Flash ultra-low-power MCU （对比 STM32L051C8T6 (no LCD, no USB))
- True 4 KB byte-erasable EEPROM with 100 k endurance （对比 GD32F303RCT6 (no true EEPROM, requires Flash emulation))
- Automotive-grade (-A suffix) variant in same footprint （对比 STM32L152R6T6 (industrial only))
设计说明
Estimated: for a sensor node waking once per second at 32 MHz from Stop-with-RTC (1.4 µA), running an ADC read + LCD update in 5 ms active time (~5 mA active current), the average current is approximately (1.4 µA × 995 ms + 5000 µA × 5 ms) / 1000 ms ≈ 26 µA. This enables 3+ years from a 230 mAh CR2032 coin cell. Always validate the active-time assumption against your actual peripheral state because USB enumeration and LCD charge pump can briefly spike current.
Do not enable the LCD peripheral without configuring the VLCD rail voltage or external charge-pump capacitors - leaving the LCD on with no display connected can cause excessive current draw through the bias network. Per ST AN2668 (LCD design guide), always specify the bias mode (1/2, 1/3, 1/4) and the dead-time insertion to match the target glass. Also enable the CSS (clock security system) bit if crystal failure detection is required; an LSE crystal stop during Stop mode requires the BYPASS_LSE flag cleared.
Place the 32.768 kHz LSE crystal within 2 mm of PC14/PC15 with a guard ring to ground; keep traces short and symmetric to minimize startup time and Stop-mode current drift. The HSE crystal (if used) requires similar placement on PD0/PD1. Place the USB D+/D- traces as a 90-ohm differential pair with no stubs, and the ferrite bead on VBUS as close to the MCU as possible. Add a 1 µF decoupling cap within 1 mm of each VDD pin and a 100 nF within 1 mm of VDDA.
Estimated: at 32 MHz / 3.3 V / active mode, the STM32L152R6T6A LQFP-64 draws ~10 mA (33 mW). With theta_JA of ~50 °C/W for LQFP-64 on a 4-layer JEDEC PCB, junction temperature rise is approximately 50 °C/W × 0.033 W = 1.7 °C above ambient - well within the -40 to +85 °C industrial rating. In Stop mode with RTC, the 1.4 µA × 3.3 V = 4.6 µW dissipation is negligible. Automotive -A variants extend the operating range to +125 °C for under-hood applications.
合规信息
AEC-Q100 qualified per the -A suffix in the part number. RoHS and REACH compliant per ST product page. Halogen-free packaging is standard for ST's LQFP-64 family. Industrial temperature grade is -40 to +85 °C; AEC-Q100 -A grade may extend to -40 to +125 °C depending on variant.
