STM32L152RCT6ATR STMicroelectronics Integrated Circuit (Quad Flat Packages) In Stock
STMicroelectronics STM32L152RCT6ATR is an ultra-low-power 32-bit ARM Cortex-M3 microcontroller with 256 KB Flash, 32 KB SRAM, 8 KB EEPROM, and integrated LCD controller, USB, ADC, and DAC running up to 24 MHz. Designed for battery-operated applications with 51 GPIO pins in a 64-pin LQFP package. Available from $5 in stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat Packages
- Pin Count
- 64
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- STM32L152RCT6ATR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Ultra-low-power design extends battery life in wearable and IoT devices to years on a single coin cell
- 256 KB Flash and 8 KB EEPROM enable local data logging and firmware storage without external memory components
- Integrated LCD controller drives segment displays for smart meters, medical devices, and handheld instruments directly
- 32-bit ARM Cortex-M3 core at 24 MHz delivers 33 DMIPS processing headroom for sensor fusion and protocol stacks at minimal power
Applications
The STM32L152RCT6ATR is well-suited for battery-powered IoT nodes, smart utility meters, and portable medical monitors that require an LCD interface alongside wireless communication peripherals. Its 8 KB EEPROM supports non-volatile parameter storage without external flash, reducing BOM cost and PCB area in handheld devices. The combination of USB full-speed, DAC, and ADC channels enables versatile sensor acquisition and USB data logging in a single, low-power package.
Specifications
| YTEOL | 6 |
| Has ADC | YES |
| Bit Size | 32 |
| Boundary Scan | YES |
| Clock Frequency-Max | 24MHz |
| DAC Channels | YES |
| DMA Channels | YES |
| JESD-30 Code | S-PQFP-G64 |
| Number of I/O Lines | 51 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | FLATPACK, LOW PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| RAM (bytes) | 32768 |
| ROM (words) | 262144 |
| ROM Programmability | FLASH |
| Speed | 32MHz |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.31.00.25 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for STM32L152RCT6ATR:
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M3 CPU, 32MHz, CMOS, PQFP64
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M3 CPU, 32MHz, CMOS, PQFP64
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M3 CPU, 32MHz, CMOS, PQFP64
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M3 CPU, 32MHz, CMOS, PQFP64
Frequently Asked Questions
How does STM32L152RCT6ATR extend battery life in a smart meter design running from a 3 V primary lithium cell?
STM32L152RCT6ATR's ultra-low-power modes include Stop mode at approximately 1.4 µA and Standby at around 0.27 µA, enabling a smart meter waking every 30 seconds to sample sensors and update an LCD to run for 5 to 10 years from a 3 V, 3600 mAh lithium cell. The integrated LCD controller keeps the display active during sleep without CPU intervention, saving additional microamps compared to a software-driven display approach.
What on-chip memory resources does STM32L152RCT6ATR offer and how do they reduce external component needs?
STM32L152RCT6ATR integrates 256 KB of Flash for firmware, 32 KB of SRAM for runtime data, and 8 KB of EEPROM for non-volatile calibration and configuration storage. This eliminates the need for an external SPI Flash or EEPROM in many designs, saving two to four components and up to $0.50 per unit in BOM cost while also reducing PCB area and assembly complexity.
For a portable medical device, how does the 12-bit ADC and DAC combination in STM32L152RCT6ATR support biopotential signal acquisition?
The STM32L152RCT6ATR includes a 12-bit ADC sampling up to 1 MSPS and a 12-bit DAC capable of generating precision analog reference voltages. In a biopotential front end, the ADC digitizes filtered ECG or EMG signals with 12-bit resolution across a 3.3 V reference, providing 0.8 mV LSB sensitivity — sufficient for detecting millivolt-level cardiac signals when combined with an instrumentation amplifier.
When is STM32L152RCT6ATR a stronger choice than STM32F103RCT6 for a handheld instrument design?
STM32L152RCT6ATR is preferred over STM32F103RCT6 whenever battery life is the primary constraint — the L152 consumes roughly 10x less current in Run mode (200 µA/MHz versus 2 mA/MHz) and includes an integrated LCD controller, EEPROM, and lower-power oscillator options not available on the F103. For handheld instruments displaying readings on a segmented LCD and transmitting data via USB, the L152 eliminates an external LCD driver IC, saving board space and reducing average power draw by milliamps.
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STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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