STM32L151R6T6 STMicroelectronics Integrated Circuit (Quad Flat Packages) In Stock
STM32L151R6T6 is an STMicroelectronics ultra-low-power 32-bit ARM Cortex-M3 MCU with 128 KB Flash, 16 KB SRAM, 4 KB EEPROM, LCD controller, USB, ADC, DAC, and DMA running at up to 32 MHz in a 64-pin LQFP. Available in stock with competitive pricing and worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat Packages
- Pin Count
- 64
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- STM32L151R6T6 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.3826(MOQ 4)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of STM32L151R6T6?
- Ultra-low-power ARM Cortex-M3 core at 32 MHz with multiple low-power modes enabling multi-year coin-cell battery life in IoT and metering applications
- 128 KB Flash, 16 KB SRAM, and 4 KB data EEPROM with integrated USB, ADC, DAC, and LCD driver for complete system integration on a single chip
- 64-pin LQFP (JESD-30 S-PQFP-G64) with JTAG boundary scan enabling straightforward board-level debug, test, and high-volume production validation
What is STM32L151R6T6 used for?
STM32L151R6T6 targets ultra-low-power portable and battery-backed systems such as smart electricity meters, medical wearables, and wireless sensor nodes requiring an LCD interface. Its integrated Cortex-M3 core, USB full-speed interface, and on-chip LCD driver reduce external component count and system cost while supporting USB data logging and direct segment LCD display output. With ADC, DAC, and DMA channels, it handles multi-channel sensor acquisition and analog output generation within a single 64-pin package.
What are the specifications of STM32L151R6T6?
| Factory Lead Time | 13Weeks |
| YTEOL | 6 |
| Has ADC | YES |
| Bit Size | 32 |
| Boundary Scan | YES |
| CPU Family | CORTEX-M3 |
| Clock Frequency-Max | 32MHz |
| DAC Channels | YES |
| DMA Channels | YES |
| JESD-30 Code | S-PQFP-G64 |
| JESD-609 Code | e3 |
| Number of I/O Lines | 51 |
| 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) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 10240 |
| ROM (words) | 32768 |
| ROM Programmability | FLASH |
| Speed | 32MHz |
| Supply Current-Max | 11mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.31.00.25 |
| Country of Origin | Mainland China |
Where can I find the STM32L151R6T6 datasheet?
STM32L151R6T6 Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for STM32L151R6T6?
Compatible alternatives and drop-in replacements for STM32L151R6T6:
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
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M3 CPU, 32MHz, CMOS, PQFP64
Frequently Asked Questions
How much memory does the STM32L151R6T6 provide and how does the EEPROM benefit data-logging designs?
STM32L151R6T6 includes 128 KB Flash, 16 KB SRAM, and 4 KB data EEPROM. The 4 KB EEPROM allows byte-level non-volatile writes without full Flash page erasure, making it ideal for storing calibration constants, configuration records, and event logs in smart meters or industrial sensors with unlimited write endurance compared to Flash sectors.
Which battery-powered medical or metering scenario benefits most from the STM32L151R6T6 ultra-low-power design?
Smart utility meters sampling voltage and current via the 12-bit ADC at 1-second intervals benefit most, as the STM32L151R6T6 can spend over 99% of time in Stop mode drawing less than 1 µA while the RTC wakes it every second for a 32 MHz Cortex-M3 burst, extending a 3.6 V lithium battery to 10+ years in typical meter deployments.
Does STM32L151R6T6 support USB and how does this simplify firmware update workflows?
Yes, STM32L151R6T6 includes an on-chip USB full-speed interface (12 Mbit/s). This allows the MCU to enumerate as a USB CDC virtual COM port or DFU device class, enabling drag-and-drop firmware updates over a standard USB cable without a dedicated programmer, reducing field service cost for deployed meters and wearable devices.
What package does STM32L151R6T6 use and how does it compare to the 48-pin variant for peripheral availability?
STM32L151R6T6 uses a 64-pin LQFP (JESD-30 S-PQFP-G64) with 0.5 mm pitch. Compared to the 48-pin LQFP variant of the STM32L1 series, the 64-pin package exposes 16 additional GPIO pins, allowing all USART, SPI, I2C, ADC, and DAC signals to be routed simultaneously without pin multiplexing conflicts — an important advantage in multi-sensor medical or industrial designs.
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About STMicroelectronics
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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 4+ | $3.0795 | $12.32 |
| 8+ | $3.0257 | $24.21 |
| 16+ | $2.9719 | $47.55 |
| 50+ | $2.6042 | $130.21 |
| 150+ | $2.4934 | $374.01 |
| 250+ | $2.3826 | $595.65 |
In Stock · 24h Response · Worldwide Shipping
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