STMicroelectronics STM32L451REY6TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $8.68 | $8.68 |
| 15+ | $5.70 | $85.50 |
| 25+ | $5.58 | $139.50 |
| 50+ | $5.27 | $263.50 |
| 100+ | $4.65 | $465.00 |
| N+ | $0.93 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM32L4 |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Core Processor | ARM® Cortex®-M4 |
| Core Size | 32-Bit Single-Core |
| Speed | 80MHz |
| Connectivity | CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, DMA, PWM, WDT |
| Number of I/O | 52 |
| Program Memory Size | 512KB (512K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 160K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.71V ~ 3.6V |
| Data Converters | A/D 16x12b; D/A 1x12b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 64-WLCSP (3.36x3.66) |
| Package / Case | 64-UFBGA, WLCSP |
| ROHS |
The STM32L451REY6TR from STMicroelectronics is a high-performance ARM Cortex-M4 microcontroller in an ultra-compact 64-UFBGA package. It runs at 80MHz and features 512KB flash and 160KB SRAM. With a supply range of 1.71V to 3.6V, it is optimized for low-power and high-throughput applications, including DMA, PWM, and WDT peripherals.
- ARM Cortex-M4 with FPU at 80MHz delivers DSP-class performance for signal processing tasks.
- 512KB flash and 160KB RAM provide ample space for complex applications and data buffering.
- Ultra-small WLCSP package enables miniaturized product designs.
- Low 1.71V operation supports single-cell battery power, simplifying power design.
High-Performance IoT Edge Nodes
The Cortex-M4 at 80MHz with 512KB flash enables complex protocol stacks (MQTT, TLS) while the 1.71V minimum voltage allows direct CR2032 coin-cell operation.
Industrial Sensor Hubs
DMA and multiple PWM channels allow simultaneous sampling of multiple sensors and actuator control without CPU loading, improving real-time response.
Wearable Health Monitors
The WLCSP package (3.2mm x 3.4mm) fits into tiny wearables, and the low-power modes extend battery life between charges.
Smart Home Controllers
With 160KB RAM, it can buffer audio or display frames for touch interfaces, while the Brown-out Reset ensures stable operation during mains fluctuations.
Portable Test Instruments
The 80MHz speed and 512KB flash support fast FFT computations for signal analysis, and the wide temperature range suits field use.
Automotive Aftermarket Modules
Operating from 1.71V to 3.6V makes it compatible with both 2-cell alkaline and single-cell LiFePO4 backup systems in car accessories.
- Q: What core does the STM32L451REY6TR use?
- A: It is based on the ARM Cortex-M4 core with FPU, running at up to 80MHz.
- Q: What is the supply voltage range?
- A: It operates from 1.71V to 3.6V, supporting low-power and battery applications.
- Q: How much flash and RAM does it have?
- A: It provides 512KB of flash memory and 160KB of SRAM.
- Q: What package is this part offered in?
- A: It comes in a 64-UFBGA (WLCSP) package, suitable for space-constrained designs.
- Q: Does it support DMA?
- A: Yes, it includes DMA controllers for efficient peripheral-to-memory data transfers.
- Q: What core does the STM32L451REY6TR use?
- A: It is based on the ARM Cortex-M4 core with FPU, running at up to 80MHz.
- Q: What is the supply voltage range?
- A: It operates from 1.71V to 3.6V, supporting low-power and battery applications.
- Q: How much flash and RAM does it have?
- A: It provides 512KB of flash memory and 160KB of SRAM.
- Q: What package is this part offered in?
- A: It comes in a 64-UFBGA (WLCSP) package, suitable for space-constrained designs.
- Q: Does it support DMA?
- A: Yes, it includes DMA controllers for efficient peripheral-to-memory data transfers.

STM32L451REY6TR.pdf