STM32L152R8T6ATR STMicroelectronics Integrated Circuit (Quad Flat Packages) In Stock
STM32L152R8T6ATR is an ultra-low-power 32-bit ARM Cortex-M3 MCU with 128 KB Flash, 32 KB SRAM, 4 KB EEPROM, integrated LCD controller, USB, ADC, and DAC running at up to 32 MHz. It features JTAG boundary scan and DMA channels for efficient peripheral management. Available from STMicroelectronics in a LQFP package with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat Packages
- Pin Count
- 64
- Lifecycle
- ACTIVE
- Datasheet
- STM32L152R8T6ATR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.6854(MOQ 1000)
- 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 ARM Cortex-M3 core at 32 MHz with multiple low-power modes enables years-long battery operation in IoT sensor nodes
- Integrated 4 KB EEPROM eliminates external non-volatile memory for configuration data, reducing BOM cost and PCB area
- Built-in LCD driver and USB full-speed interface enable standalone display and PC connectivity without external controllers
- On-chip 12-bit ADC and DAC with DMA support allows simultaneous analog acquisition and waveform generation at low active power
Applications
STM32L152R8T6ATR is purpose-built for battery-operated consumer and industrial devices such as smart meters, wearable health monitors, and environmental sensor nodes where ultra-low active and standby current is paramount. The integrated LCD controller supports segmented glass displays common in energy meters and thermostats, eliminating an external LCD driver IC. Its USB interface enables direct PC communication for firmware updates and data offload in portable diagnostic instruments and data loggers.
Specifications
| Factory Lead Time | 13Weeks |
| YTEOL | 9 |
| Has ADC | YES |
| Bit Size | 32 |
| Boundary Scan | YES |
| CPU Family | CORTEX-M3 |
| Clock Frequency-Max | 32MHz |
| DAC Channels | YES |
| DMA Channels | YES |
| Integrated Cache | NO |
| JESD-30 Code | S-PQFP-G64 |
| Low Power Mode | YES |
| Number of DMA Channels | 7 |
| Number of External Interrupts | 16 |
| Number of I/O Lines | 51 |
| Number of Serial I/Os | 3 |
| Number of Timers | 6 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | QFP64,.47SQ,20 |
| Package Shape | SQUARE |
| Package Style | FLATPACK, LOW PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| RAM (bytes) | 32768 |
| RAM (words) | 32768 |
| ROM (words) | 65536 |
| ROM Programmability | FLASH |
| Speed | 32MHz |
| Supply Current-Max | 100mA |
| 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 STM32L152R8T6ATR:
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
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M3 CPU, 32MHz, CMOS, PQFP64
Frequently Asked Questions
How does the integrated 4 KB EEPROM in STM32L152R8T6ATR benefit smart-meter designs compared to using external Flash?
The on-chip 4 KB EEPROM provides byte-addressable non-volatile storage rated for 300,000 write cycles without requiring an external SPI or I2C EEPROM chip, saving at least 1 component and 3 mm x 2 mm of PCB area. In smart-meter designs this stores calibration constants and tariff tables that must survive power outages, and the endurance of 300,000 cycles supports daily updates over more than 800 years of operation.
For a wearable health-monitor running on a 500 mAh coin cell, what power modes does STM32L152R8T6ATR provide?
STM32L152R8T6ATR offers multiple low-power modes including Stop mode with RAM retention drawing under 1 µA and Standby mode at approximately 0.3 µA. With a 32 MHz Cortex-M3 core consuming roughly 200 µA/MHz in run mode, a typical wearable duty cycle of 1% active at 4 MHz and 99% in Stop mode results in an average current below 10 µA, allowing a 500 mAh cell to last over 5 years between charges.
When would STM32L152R8T6ATR be selected over STM32F103 for a USB-connected portable sensor?
STM32L152R8T6ATR is the right choice when battery life is the primary constraint, as its ultra-low-power Cortex-M3 design achieves standby currents below 1 µA versus the STM32F103's 2–3 µA in Stop mode. Both run at 32–72 MHz with similar Flash sizes, but the L152 adds 4 KB EEPROM and an integrated LCD driver that the F103 lacks, making it a single-chip solution for metering or display applications without extra ICs.
How does the DMA controller in STM32L152R8T6ATR improve analog data acquisition throughput at low clock speeds?
The DMA controller allows the 12-bit ADC to write directly to RAM without CPU intervention, so at 32 MHz the Cortex-M3 core remains in sleep mode between DMA transfer-complete interrupts. This reduces effective power consumption by up to 60% during continuous 1 kSps sensor sampling compared to polling-based ADC reads, while still achieving 12-bit accuracy across the -40°C to +85°C temperature range specified for the T6 temperature grade.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1000+ | $4.0530 | $4052.97 |
| 4000+ | $3.7238 | $14895.32 |
| 8000+ | $3.7046 | $29637.12 |
| 16000+ | $3.6854 | $58967.04 |
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