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STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100
STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100
STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100
STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100
STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100
STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100
STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100
STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100
STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100
STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100
STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100
STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100
STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100
STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100
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STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100

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STM32L152VCT6  Product Overview

The STM32L152VCT6 is an Arm Cortex-M3 MCU at 32 MHz, LQFP-100. The STM32L152VCT6 offers 256 KB Flash, 32 KB SRAM, 8 KB EEPROM, an LCD segment driver (up to 8×40), 12-bit ADC (24 ch), two 12-bit DACs, two comparators, capacitive touch channels, LP timers, RTC, 3×USART, 2×SPI, 2×I2C. Up to 83 x 5 V-tolerant I/Os. 1.8–3.6 V, -40–85 °C. Compared to the STM32L152VBT6A (128 KB Flash, 16 KB SRAM, 4 KB EEPROM), the STM32L152VCT6 significantly upgrades Flash, SRAM, and EEPROM, providing a more powerful ultra-low-power platform for battery-powered smart meters, industrial instruments, and HMI devices needing larger program space, complex data processing, segment display, and dense peripherals.


STM32L152VCT6  Core Features

Core: The STM32L152VCT6 features an Arm Cortex-M3 core at 32 MHz, with a low-power design.

Memory: The STM32L152VCT6 provides 256 KB Flash, 32 KB SRAM, and 8 KB EEPROM.

Display & Analog: The STM32L152VCT6 integrates an LCD segment driver (up to 8×40), two 12-bit DACs, a 12-bit ADC (24 channels), two comparators, and capacitive touch sensing.

Connectivity: The STM32L152VCT6 includes 3×USART, 2×SPI, and 2×I2C interfaces.

Timers: The STM32L152VCT6 contains LP timers, general-purpose timers, and an RTC.

I/Os: The STM32L152VCT6 offers 83 I/O pins, all 5 V-tolerant.

Package: The STM32L152VCT6 is available in an LQFP-100 package.

Temperature Range: The STM32L152VCT6 operates from -40°C to 85°C.


STM32L152VCT6  Applications

Smart Metering & Instrumentation: The STM32L152VCT6 is ideal for water, gas, and electricity meters, as well as industrial instruments.

Portable Devices: The STM32L152VCT6 is designed into wearables and portable medical devices.

Smart Home: The STM32L152VCT6 enables thermostats, smart switches, and HMI panels.

Consumer Electronics: The STM32L152VCT6 is used in remote controls, e-labels, and smart cards.

Energy Harvesting Applications: The STM32L152VCT6 supports self-powered sensor nodes.


STM32L152VCT6  Key Advantages

256 KB Flash + 32 KB SRAM + 8 KB EEPROM: The STM32L152VCT6 provides comprehensively upgraded storage for complex protocol stacks and massive data logging.

LCD Segment Driver + Ultra-Low Power: The STM32L152VCT6 integrates a segment display with extremely low power, ideal for battery-powered display applications.

Dual DACs + Comparators + Capacitive Touch: The STM32L152VCT6 offers flexible analog output, signal detection, and touch sensing all integrated.

83 I/Os + 24 ADC Channels in LQFP-100: The STM32L152VCT6 delivers rich pins and analog channels for peripheral-intensive systems.

Cortex-M3 Core: The STM32L152VCT6 provides stronger processing than M0+ while balancing complex control and low power.

5 V-tolerant I/Os: The STM32L152VCT6 offers enhanced noise immunity and simplified external circuit design.

Full Ecosystem Compatibility: The STM32L152VCT6 enables easy development with STM32CubeIDE/HAL/LL libraries.


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STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100STM32L152VCT6 ST Mainstream Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC Comparator Capacitive Touch LQFP-100 STM32L152VCT6 ST Arm Cortex-M3 Ultra-Low-Power 32-bit MCU 256KB Flash 32KB SRAM EEPROM LCD Dual DAC LQFP-100





FAQ

1. What is STM32L152VCT6?
The STM32L152VCT6 is an ultra-low-power 32-bit MCU from STMicroelectronics' STM32L1 series, built around an Arm® Cortex®-M3 core in an LQFP-100 package. Running at up to 32 MHz, the STM32L152VCT6 offers 256 KB Flash and 80 KB SRAM, a segment LCD driver, 12-bit ADC, 12-bit DAC, capacitive touch sensing (TSC), and a USB device interface. By providing the full display and analog feature set with an optimized Flash size, the STM32L152VCT6 is ideal for battery-powered applications with predictable firmware requirements.

2. What are the key specifications of STM32L152VCT6?

  • Core: Arm® Cortex®-M3, up to 32 MHz, 1.25 DMIPS/MHz

  • Memory: 256 KB Flash, 80 KB SRAM

  • Operating Voltage: 1.65 V to 3.6 V

  • Temperature Range: -40 °C to +85 °C (industrial grade)

  • I/O Count: up to 83

  • Package: LQFP-100 (14 mm × 14 mm)

3. How many segments can the on‑chip LCD driver control in the 100‑pin package, and is an external chip needed?
The STM32L152VCT6 includes an LCD controller capable of driving up to 8 common lines and 44 segment lines (8 COM × 44 SEG), for a maximum of 320 segments. This is sufficient for most water, gas, and thermostat meters without external driver ICs. The STM32L152VCT6 can continue refreshing the LCD even in low‑power Stop mode using internal boost circuitry and an independent clock, enabling always‑on displays with minimal power draw.

4. What is the difference between STM32L152VCT6 and STM32L152VET6? How do I choose based on Flash size?
Both share the same package, pinout, and peripherals. The only difference is Flash capacity: the STM32L152VCT6 has 256 KB, while the VET6 has 512 KB. Both have 80 KB SRAM. If your firmware fits within 256 KB, the STM32L152VCT6 is the more cost‑effective option; if you need extra space for larger code or future expansion, VET6 provides headroom. For most metering applications with segment LCD and USB, the STM32L152VCT6 is adequate.

5. This chip integrates a 12‑bit DAC. Can it output audio or analog control signals?
Yes. The STM32L152VCT6 features two 12‑bit DAC channels capable of generating steady DC levels or low‑frequency waveforms. While not suitable for high‑fidelity audio, it is excellent for setpoint output, sensor excitation, voltage reference generation, or simple alarm tone synthesis in industrial control. Paired with DMA, the STM32L152VCT6 can achieve smooth waveform generation.

6. How does the STM32L152VCT6 perform in terms of power consumption?

  • Temperature Range: -40 °C to +85 °C

  • Ultra‑low‑power modes of the STM32L152VCT6:

    • Standby mode: ~0.3 µA (no RTC)

    • Stop mode: ~0.5 µA (no RTC), ~1.3 µA with RTC

    • Low‑power Run mode: ~10 µA/MHz

    • Run mode: ~230 µA/MHz

7. What communication stacks can the 80 KB SRAM support without external memory?
The STM32L152VCT6's 80 KB SRAM can comfortably accommodate a lightweight RTOS (e.g., FreeRTOS), a USB device stack (CDC or HID), and basic industrial protocols such as Modbus RTU, while leaving room for sensor data buffers and LCD frame memory. For intensive data logging or large graphics buffers, external SRAM or Flash can be added to the STM32L152VCT6 via the parallel bus or SPI.

8. How do I use the capacitive touch sensing (TSC) feature? Are external components required?
The STM32L152VCT6's TSC controller supports up to 24 sensing channels for touch keys, sliders, or proximity detection. It uses GPIOs and external sensing electrodes (typically copper pads on the PCB) to form capacitive sensors, eliminating the need for dedicated touch ICs. ST provides a complete TSC software library for the STM32L152VCT6 based on the charge‑transfer principle, delivering robust touch detection even in the presence of moisture or through overlay panels.

9. Can the USB device interface emulate a serial port or mass storage device? Is an external crystal necessary?
Yes. The USB 2.0 full‑speed device controller of the STM32L152VCT6 supports CDC (virtual COM port), HID (keyboard/mouse), and MSC (mass storage) classes. However, USB communication demands high clock accuracy, typically requiring an external crystal with ≤0.25% tolerance (e.g., 8 MHz or 16 MHz) for the STM32L152VCT6. The internal RC oscillator may not meet USB specifications, so using an external crystal is recommended for reliable connectivity.

10. If I plan to migrate from the STM32L1 to the newer STM32L4 series, what peripheral changes should I anticipate?
The STM32L4 series upgrades to a Cortex‑M4 core with FPU and DSP at up to 80 MHz, offering significant performance and efficiency gains. However, most L4 devices drop the segment LCD driver and DAC found on the STM32L152VCT6. If your design heavily relies on a segment display and DAC outputs, the STM32L152VCT6 remains an excellent fit. For future projects targeting TFT color screens and higher processing power, the L4 series is a strong direction. Both families are supported by STM32Cube tools, and a large portion of HAL code can be reused during migration.

Property:
Specification
Product Type:
Arm Cortex-M3 Ultra-Low-Power 32-bit MCU
Brand:
STMicroelectronics
Core:
Cortex-M3 32 MHz
Package:
LQFP-100
Memory:
256 KB Flash, 32 KB SRAM, 8 KB EEPROM
Display & Analog:
LCD Segment Driver (8×40), 2×12-bit DACs, 12-bit ADC, 2×Comparators, Capacitive Touch
Connectivity:
USART, SPI, I2C
I/Os:
83
Voltage:
1.8V–3.6V
Temperature:
-40°C to 85°C
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