STMicroelectronics STM32L152C8T6

Overview

STM32L152C8T6 from STMicroelectronics is an ultra-low-power 32-bit ARM Cortex-M3 microcontroller featuring 128 KB Flash, 16 KB SRAM, 4 KB EEPROM with ECC, USB 2.0 interface, 12-bit ADC (1 Msps, 24 channels), and dual 12-bit DACs - deployed in battery-powered medical sensors, portable industrial loggers, and smart utility meters requiring sub-1 µA standby current and RTC retention.

For engineers reviewing the STM32L152C8T6 datasheet, STM32L152C8T6 pinout, STM32L152C8T6 application, or STM32L152C8T6 equivalent, key selection criteria include verified ultra-low-power mode timing (0.3 µA Standby, <8 µs wakeup), LCD driver support (excluded in C8 variant), USB 48 MHz PLL stability, and 73 I/Os with 5V tolerance on selected pins.

Technical Context

The STM32L152C8T6 integrates a 32 MHz ARM Cortex-M3 core with MPU, dynamic voltage scaling across six power modes (Run, Sleep, Low-power Run, Stop, Standby), and dedicated low-leakage circuitry enabling 10 nA I/O leakage and 0.9 µA Standby+RTC operation. Its clock system combines HSE (1–24 MHz), LSE (32.768 kHz), HSI (16 MHz ±1%), LSI (37 kHz), and MSI (65 kHz–4.2 MHz) sources with a programmable PLL for USB and CPU clocks.

Analog subsystem includes two ultra-low-power comparators with window mode and wake-up capability, temperature sensor, VREFINT reference, and dual buffered 12-bit DACs - all functional down to 1.8 V supply. The 7-channel DMA controller supports concurrent transfers between peripherals including ADC, DAC, USB, and communication interfaces.

Key Specifications

Pinout & Package

LQFP48 package (7 × 7 mm, 0.5 mm pitch), 48-pin quad flat lead frame with exposed thermal pad - optimized for compact PCB layouts and thermal dissipation in space-constrained designs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar ultra-low-power MCU applications.

Compared with STM32L152C8T6, STM32L072CZT6 trades USB and EEPROM for lower cost and smaller footprint, while STM32L432KCU6 adds FPU and larger memory at the expense of ultra-low-power efficiency - making STM32L152C8T6 optimal for USB-connected, EEPROM-dependent, sub-µA standby applications.

Availability

STM32L152C8T6 is available at Aetrix Electronics and suitable for wearable health monitors, smart utility meters, industrial data loggers, and portable handheld testers requiring stable component supply across multi-year production cycles.

Supply support for STM32L152C8T6 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and automotive-grade components since 1987.

The STM32L1 series targets ultra-low-power embedded applications demanding extended battery life, high reliability, and integrated analog peripherals - specifically engineered for medical, metering, and portable industrial equipment.

FAQ

Does STM32L152C8T6 include an integrated LCD controller?

No. The STM32L152C8T6 does not include an LCD controller. According to ST's official datasheet (DocID17659 Rev 12, Section 2.1), LCD driver functionality is excluded in the 'C' density variants (C6/C8/CB) and only present in 'R' and 'V' density packages (e.g., STM32L152RB/VB). This omission reduces die size and cost for non-display applications.

What is the maximum operating temperature for STM32L152C8T6?

The STM32L152C8T6 is rated for industrial temperature range: –40°C to +85°C. Some variants (e.g., STM32L152xB) extend to +105°C, but the C8T6 suffix explicitly denotes the 85°C grade per ST's ordering information table (Table 72, DocID17659 Rev 12). Ambient temperature must remain within this range during all operating modes.

Can STM32L152C8T6 operate from a single 1.8 V supply?

No. The absolute minimum VDD is 1.65 V, but analog peripherals (ADC, DAC, comparators) require ≥1.8 V to function per electrical characteristics (Section 6.3.1, Table 13). Running at 1.8 V enables full analog operation; below that, only digital logic remains functional, and ADC/DAC will not meet specifications.

Is the USB interface on STM32L152C8T6 compliant with USB Battery Charging v1.2?

No. The integrated USB 2.0 Full-Speed peripheral supports device-mode enumeration and data transfer only. It lacks dedicated BC1.2 detection circuitry and does not implement D+/D− voltage sensing for charging port identification. External ICs or software-based enumeration workarounds are required for BC1.2 compatibility.