STM32L451RCI6TR STMicroelectronics Integrated Circuit (BGA) In Stock
STMicroelectronics STM32L451RCI6TR is an ultra-low-power 32-bit ARM Cortex-M4 microcontroller with FPU, running at up to 80 MHz and delivering 100 DMIPS from 512KB Flash and 160KB SRAM. It integrates ADC, DAC, DMA, and audio interfaces in a 64-pin BGA package. Available from stock with worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- BGA
- Pin Count
- 64
- Lifecycle
- ACTIVE
- Datasheet
- STM32L451RCI6TR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.8093(MOQ 100)
- 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 STM32L451RCI6TR?
- ARM Cortex-M4 core with FPU at up to 80 MHz achieving 100 DMIPS for DSP-grade signal processing in power-sensitive applications
- 512KB Flash and 160KB SRAM supporting complex firmware with large data buffers in wearable and medical IoT designs
- Ultra-low-power design with multiple Stop modes consuming as little as 1 µA in Shutdown mode extending battery life
- Integrated 12-bit ADC, DAC, DMA, and audio SAI interface enabling analog sensing and audio processing without external codecs
- 64-pin BGA package enabling high I/O density in compact PCB footprints for space-constrained wearable and industrial modules
What is STM32L451RCI6TR used for?
STM32L451RCI6TR is the core processor in medical wearable devices such as continuous glucose monitors and ECG patches, where its ultra-low-power Stop modes extending battery runtime to months while its Cortex-M4 FPU processes biosignal data in real time at 80 MHz. Industrial IoT sensor nodes and asset-tracking modules leverage its 512KB Flash for on-device machine-learning inference and its DMA engine to stream sensor data without waking the CPU. Smart home controllers and audio streaming accessories benefit from its integrated SAI audio interface and DAC, reducing external component count and PCB area.
What are the specifications of STM32L451RCI6TR?
| Factory Lead Time | 12Weeks |
| YTEOL | 9 |
| Has ADC | YES |
| Bit Size | 32 |
| Boundary Scan | YES |
| CPU Family | CORTEX-M4 |
| Clock Frequency-Max | 48MHz |
| DAC Channels | YES |
| DMA Channels | YES |
| Format | FLOATING POINT |
| Integrated Cache | YES |
| JESD-30 Code | S-PBGA-B64 |
| Low Power Mode | YES |
| Number of DMA Channels | 14 |
| Number of External Interrupts | 16 |
| Number of I/O Lines | 52 |
| Number of Timers | 12 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | BGA64,8X8,20 |
| Package Shape | SQUARE |
| Package Style | GRID ARRAY, VERY THIN PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| RAM (bytes) | 163840 |
| RAM (words) | 163840 |
| ROM (words) | 262144 |
| ROM Programmability | FLASH |
| Speed | 80MHz |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 1.8V |
| Supply Voltage-Nom | 1.8V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | BALL |
| Terminal Pitch | 0.5mm |
| Terminal Position | BOTTOM |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | BGA |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.31.00.25 |
| Country of Origin | Mainland China, Philippines, Taiwan |
Where can I find the STM32L451RCI6TR datasheet?
STM32L451RCI6TR Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for STM32L451RCI6TR?
Compatible alternatives and drop-in replacements for STM32L451RCI6TR:
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4 CPU, 80MHz, CMOS, PBGA64
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M4 CPU, 80MHz, CMOS, PBGA64
Frequently Asked Questions
How does STM32L451RCI6TR achieve ultra-low power while still providing 100 DMIPS processing performance?
STM32L451RCI6TR uses STM's ultra-low-power process technology and multiple low-power modes, including Stop 2 mode at approximately 1.1 µA, to minimize idle current. When active at 80 MHz from 1.71V to 3.6V supply, the Cortex-M4 core delivers 100 DMIPS, and dynamic voltage scaling reduces active-mode current consumption compared to general-purpose MCUs at equivalent frequency.
For an ECG wearable requiring analog signal acquisition, how does the integrated ADC in STM32L451RCI6TR simplify the design?
The integrated 12-bit ADC with up to 16 channels samples analog biosignals at rates suitable for ECG at 1 kHz or accelerometer fusion at 200 Hz, eliminating a separate ADC IC. Combined with DMA transfers and the Cortex-M4 FPU, the device can filter and process 16-bit biosignal data in real time without requiring an external DSP, saving 2 to 3 components from the BOM.
When should STM32L451RCI6TR be chosen over STM32L4 devices with fewer than 160KB SRAM for firmware development?
STM32L451RCI6TR's 160KB SRAM is justified when firmware requires large data buffers exceeding 64KB, such as BLE audio streaming with multiple codec frames, TLS handshake buffers larger than 32KB, or on-device ML inference with neural network weight buffers. Selecting a variant with less SRAM forces external PSRAM, adding BOM cost and PCB routing complexity.
How does the BGA-64 package of STM32L451RCI6TR affect PCB design rules compared to an LQFP-64 alternative?
The 64-ball BGA uses a 0.5 mm pitch ball grid, requiring via-in-pad or fan-out routing with 0.1 mm trace widths on inner layers, compared to 0.4 mm pitch flat leads on LQFP-64 which route on a 2-layer board. BGA reduces package footprint to approximately 7 mm × 7 mm versus LQFP's 10 mm × 10 mm, benefiting designs where area is critical despite the higher PCB layer requirement.
Related Guides
SN74LVC14APWR Schmitt-Trigger Inverter Selection Guide
Select SN74LVC14APWR by voltage, thresholds, package, alternatives, and sourcing requirements before approving your next order.
Nov 8, 2026
RK73H1ETTP1002F PCB Application and Validation Guide
Implement RK73H1ETTP1002F in pull-ups, dividers, and bias filters with practical power, leakage, assembly, and validation checks.
Nov 8, 2026
TLMG1100-GS08 Indicator LED PCB Design and Validation Guide
Design and validate a TLMG1100-GS08 indicator PCB with current calculations, GPIO checks, polarity review, and enclosure tests.
Nov 7, 2026
How to Choose RK73H1ETTP1002F: Chip Resistor Selection Guide 2026
Select RK73H1ETTP1002F for 10 kΩ circuits: compare four catalog options, check power and package limits, and prepare an exact-part sourcing request.
Nov 7, 2026
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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $4.4500 | $445.00 |
| 250+ | $4.2100 | $1052.50 |
| 500+ | $3.7800 | $1890.00 |
| 5000+ | $3.6336 | $18168.15 |
| 20000+ | $2.8431 | $56862.60 |
| 40000+ | $2.8093 | $112371.60 |
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.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit