STMicroelectronicsSTM32L151RCY6TR | STM32 MCU with 256-KB Flash and 32-KB RAMMicrocontrollers - MCUs
STM32L151RCY6TR STMicroelectronics Microcontroller 32-bit ARM Cortex M3 RISC 256KB Flash 2.5V/3.3V 64-Pin - Arrow.com
32-bit ARM MCU with 256-KB flash, 32-KB RAM, maximum core frequency of 32 MHz, multiple peripherals, and 51 I/Os in a WLCSP package.
The STM32L151RCY6TR is an industrial-grade STM32 microcontroller with a 32-bit ARM core operating at a maximum frequency of 32 MHz. The STM32L151RCY6TR has a flash memory size of 256 KB, a RAM size of 32 KB, and a supply voltage range of 1.8 V to 3.3 V, all housed in a WLCSP BGA package. Peripherals on the STM32L151RCY6TR include I2C, I2S, SPI, UART, and USB, as well as nine timers and an LCD driver that can power up to 8 × 40 segments, including contract adjustment and blinking. Furthermore, the STM32L151RCY6TR has up to 51 5-V tolerant GPIOs and a 21-channel ADC and an operating temperature range of –40°C to 85°C.
Drawings/Package

Key Features
- 32-bit ARM MCU with a maximum operating frequency of 32 MHz
- 256-KB flash and 32-KB RAM
- UART, I2S, I2C, SPI, and USB
- Nine timers, DAC, ADC, and DMA
- In-built LCD controller for 8 × 40 segments
- Operating temperature range of –40°C to 85°C
General Applications
- Industrial HMI
- IoT
- Control systems
Evaluation Board
NO — There is no evaluation board for the STM32L151RCY6TR. The datasheet contains usage application examples.
| Compliant | |
| 3A991a.2. | |
| Active | |
| STM32L151RCY6TR | |
| Automotive | No |
| PPAP | No |
| STM32L | |
| RISC | |
| ARM Cortex M3 | |
| ARM | |
| 32 | |
| 32 | |
| 32 | |
| Flash | |
| 256KB | |
| 32KB | |
| Yes | |
| I2C/I2S/SPI/USART/USB | |
| 51 | |
| 9 | |
| 1 | |
| 21 | |
| 12 | |
| 2 | |
| 2/2 | |
| 12/12 | |
| 128|224 | |
| 3 | |
| 0 | |
| 1 | |
| 3 | |
| 2 | |
| 2 | |
| 0 | |
| 0 | |
| 2 | |
| 2 | |
| LCD Controller | |
| 1.8 | |
| 3.3|2.5 | |
| 3.6 | |
| 290 | |
| -40 | |
| 85 | |
| Industrial | |
| Tape and Reel | |
| Installation | Surface Mount |
| Hauteur du paquet | 0.38 |
| Largeur du paquet | 4.54 |
| Longueur du paquet | 4.91 |
| Carte électronique changée | 64 |
| Nom de lemballage standard | CSP |
| Conditionnement du fournisseur | WLCSP |
| 64 | |
| Forme de sonde | Ball |
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