STM32L151ZCY6TR STMicroelectronics Integrated Circuit (BGA) In Stock
STM32L151ZCY6TR is a 32-bit ARM Cortex-M3 ultra-low-power microcontroller from STMicroelectronics running at up to 32 MHz with 256 KB Flash memory in a 144-LQFP package. It features advanced power-saving modes targeting battery-operated IoT and wearable devices. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- BGA
- Pin Count
- 64
- Lifecycle
- ACTIVE
- Datasheet
- STM32L151ZCY6TR Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of STM32L151ZCY6TR?
- 32-bit ARM Cortex-M3 core at 32 MHz with ultra-low-power design for battery-operated devices
- 256 KB Flash memory and 32 KB RAM supporting complex firmware in wearable and IoT applications
- 144-LQFP 20x20 mm package with rich I/O count enabling extensive peripheral connectivity
What is STM32L151ZCY6TR used for?
The STM32L151ZCY6TR is optimized for battery-powered IoT nodes, smart meters, and health monitoring wearables where the ultra-low-power ARM Cortex-M3 core at 32 MHz minimizes current draw during active and sleep modes. It supports a wide range of peripherals including USB, SPI, I2C, and USART, making it suitable for sensor hub designs that aggregate data from multiple sensors. Medical-grade portable instruments and wireless sensor networks also benefit from its combination of processing power and energy efficiency.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.31.00.25 |
Where can I find the STM32L151ZCY6TR datasheet?
STM32L151ZCY6TR Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for STM32L151ZCY6TR?
Compatible alternatives and drop-in replacements for STM32L151ZCY6TR:
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M3 CPU, 32MHz, CMOS, PQFP144
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M3 CPU, 32MHz, CMOS, PQFP144
Frequently Asked Questions
How does STM32L151ZCY6TR's ultra-low-power design enable long battery life in IoT sensor nodes?
The STM32L151ZCY6TR achieves extremely low active and standby currents through ST's ultra-low-power process, with stop mode current as low as 0.9 µA and run mode at 32 MHz consuming roughly 230 µA/MHz. This makes it ideal for IoT sensor nodes powered by coin cells or small Li-ion batteries that must operate continuously for months or years.
What memory resources does STM32L151ZCY6TR provide and how do 256 KB Flash and 32 KB RAM serve embedded firmware needs?
With 256 KB of Flash and 32 KB of SRAM, the STM32L151ZCY6TR accommodates sizeable firmware stacks including FreeRTOS, USB device middleware, and BLE protocol layers in a single chip. The 32-bit ARM Cortex-M3 core at 32 MHz processes these workloads efficiently while the 144-LQFP package exposes enough GPIO and peripheral pins for complex multi-sensor designs.
Which alternative STM32L1 variants should be considered when STM32L151ZCY6TR pin count or memory exceeds design needs?
When 144 pins and 256 KB Flash exceed the design's requirements, ST offers the STM32L151RCT6 in a 64-pin LQFP with the same 256 KB Flash and 32 MHz core, or the STM32L151C8T6 in a smaller 48-pin LQFP with 64 KB Flash. Downsizing to these smaller packages can reduce PCB area by over 60% and unit cost, while retaining the same ARM Cortex-M3 ultra-low-power architecture.
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Why Buy from FindMyChip
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.
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
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