STMicroelectronics STM32L4R9ZIY6TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $20.83 | $20.83 |
| 15+ | $13.69 | $205.35 |
| 25+ | $13.39 | $334.75 |
| 50+ | $12.65 | $632.50 |
| 100+ | $11.16 | $1,116.00 |
| N+ | $2.23 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | STMicroelectronics |
| Product Series | STM32L4 |
| Packaging | Cut Tape (CT) | NULL |
| Core Processor | ARM® Cortex®-M4 |
| Core Size | 32-Bit Single-Core |
| Speed | 120MHz |
| Connectivity | CANbus, EBI/EMI, I2C, IrDA, LINbus, MMC/SD, SAI, SPI, UART/USART, USB OTG |
| Peripherals | Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT |
| Number of I/O | 112 |
| Program Memory Size | 2MB (2M x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 640K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.71V ~ 3.6V |
| Data Converters | A/D 16x12b; D/A 2x12b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 144-WLCSP (5.24x5.24) |
| Package / Case | 144-UFBGA, WLCSP |
| ROHS |
The STMicroelectronics STM32L4R9ZIY6TR is an ultra-low-power 32-bit MCU based on the ARM Cortex-M4 core. Operating at 120MHz with 2MB flash and 640KB RAM, it offers exceptional performance for power-sensitive applications. The 144-UFBGA or WLCSP package and 1.71V-3.6V supply range enable compact, battery-powered designs. Integrated LCD controller, DMA, PWM, WDT, and brown-out detection provide a complete feature set for advanced embedded systems.
- Ultra-low power: 1.71V operation and efficient Cortex-M4 core extend battery life in portable devices.
- Large memory: 2MB flash and 640KB RAM support complex applications and over-the-air updates.
- Integrated LCD: On-chip LCD controller eliminates external display driver ICs, reducing cost and size.
- Comprehensive protection: Brown-out detection and WDT ensure reliable operation in fluctuating power conditions.
Wearable Health Monitors
Ultra-low voltage (1.71V) and LCD controller enable battery-powered devices with always-on displays and sensor processing.
Smart Home Hubs
2MB flash and 640KB RAM support complex IoT protocols and local voice recognition; WDT ensures reliable 24/7 operation.
Portable Medical Devices
Low power consumption and brown-out detection protect critical patient data during battery discharge.
Industrial HMI Panels
Integrated LCD driver and PWM backlight control reduce BOM cost for operator interface terminals.
Energy Harvesting Sensors
1.71V minimum supply allows operation from single-cell solar or thermal harvesters with minimal boost circuitry.
Consumer Audio Equipment
High-speed Cortex-M4 with DMA supports high-fidelity audio processing and effects in portable speakers.
- Q: What is the core processor?
- A: ARM Cortex-M4 at 120MHz.
- Q: What is the supply voltage range?
- A: 1.71V to 3.6V, supporting low-power battery operation.
- Q: How much flash and RAM?
- A: 2MB flash and 640KB RAM.
- Q: What package options exist?
- A: 144-UFBGA and WLCSP.
- Q: What special features are included?
- A: LCD controller, DMA, PWM, WDT, and brown-out detection.
- Q: What is the core processor?
- A: ARM Cortex-M4 at 120MHz.
- Q: What is the supply voltage range?
- A: 1.71V to 3.6V, supporting low-power battery operation.
- Q: How much flash and RAM?
- A: 2MB flash and 640KB RAM.
- Q: What package options exist?
- A: 144-UFBGA and WLCSP.
- Q: What special features are included?
- A: LCD controller, DMA, PWM, WDT, and brown-out detection.

STM32L4R9ZIY6TR.pdf