STM32L072RZI6D - 192KB Flash 32MHz Cortex-M0+ MCU 64-UFBGA | STMicroelectronics
MPN: STM32L072RZI6D ✓ Hoạt độngSTM32L072RZI6D Tóm tắt
An ARM Cortex-M0+ microcontroller is a 32-bit reduced instruction set core optimized for energy-sensitive embedded applications. It belongs to the microcontroller family hierarchy: microcontroller -> MCU -> 32-bit ARM MCU -> Cortex-M0+ -> ultra-low-power MCU -> STM32L0 family. The M0+ architecture trades peak performance for exceptionally low power and code density, making it ideal for applications where battery life matters more than GHz-class throughput.
Key features of the STM32L072RZI6D include 192KB Flash, 20KB SRAM, 6KB EEPROM, a 12-bit ADC with up to 16 channels, multiple low-power modes down to deep-sleep with RTC retention, an integrated USB 2.0 Full-Speed peripheral (with on-chip PHY), and AES-128 hardware acceleration for secure communications. The device also includes a real-time clock (RTC), capacitive-touch sensing hardware (TSC), multiple timers, and a robust set of serial peripherals (USART, SPI, I2C). It is qualified for industrial temperature range of -40C to +85C and ships in a compact 5x5 mm 64-ball UFBGA package, reducing PCB footprint relative to equivalent LQFP64 parts.
The STM32L072RZI6D leverages the Cortex-M0+ core with the ST proprietary ultra-low-power process technology. Designers benefit from the STM32CubeMX configuration utility, the STM32CubeL0 embedded software package with HAL/LL drivers, and broad toolchain support from IAR, Keil, and GCC-based IDEs. The device's integrated USB PHY eliminates the need for an external crystal on most USB designs, simplifying the BOM and reducing the PCB area required for USB connectivity.
Typical applications include IoT sensor nodes, smart metering (gas, water and electricity), wireless M-Bus / wM-Bus endpoints, battery-powered asset trackers, medical wearables (continuous glucose monitors, pulse oximeters), and secure edge nodes where AES-128 hardware acceleration reduces firmware overhead.
When designing with this device, plan decoupling capacitors as close as possible to the power pins and route the USB differential pair (D+/D-) with 90-ohm differential impedance and length matching. The integrated USB PHY requires careful PCB layout per ST application note AN4834 for signal-integrity compliance.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers evaluate the STM32L072RZI6D for new designs and second-source decisions as of 2026-10-10.
Bộ thay thế dễ dàng lắp đặt cho STM32L072RZI6D — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
STM32L072RZT6
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM32L052RZI6D
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM32L073RZI6D
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM32L072RZI6
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
STM32L072RZT6TR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM32L072RZI6D Tỷ lệ tối đa & tính chất điện
| Series | STM32L0 |
| Core | ARM Cortex-M0+ (32-bit) |
| Tần số xung maksimum | 32 MHz |
| Flash Memory | 192 KB |
| SRAM | 20 KB |
| EEPROM | 6 KB |
| Operating Voltage Range | 1.65 V to 3.6 V |
| USB Interface | USB 2.0 Full-Speed (on-chip PHY, crystal-less option) |
| Hardware Encryption | AES-128 |
| Random Number Generator | True RNG (TRNG) |
| ADC | 12-bit, up to 16 channels |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (industrial) |
| Hộp | 64-UFBGA (5x5 mm) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 3 |
| Trạng thái RoHS | Compliant |
| Low-Power Modes | Stop, Standby, Shutdown with RTC retention |
Cấu hình chân STM32L072RZI6D
| Chân A1 | PA13 — GPIO/TMS/SWDIO (programming interface) |
| Chân A2 | PA14 — GPIO/TCK/SWCLK (programming interface) |
| Chân A3 | PA15 — GPIO/JTDI |
| Chân A4 | PB3 — GPIO/JTDO/TRACESWO |
| Chân A5 | PB4 — GPIO/NJTRST |
| Chân A6 | PB5 — GPIO |
| Chân A7 | PB6 — GPIO/I2C1_SCL/USART1_TX |
| Chân A8 | PB7 — GPIO/I2C1_SDA/USART1_RX |
| Chân B1 | PA0 — GPIO/ADC_IN0/WKUP1 |
| Chân B2 | PA1 — GPIO/ADC_IN1 |
| Chân B3 | PA2 — GPIO/ADC_IN2/USART2_TX |
| Chân B4 | PA3 — GPIO/ADC_IN3/USART2_RX |
| Chân B5 | PA4 — GPIO/ADC_IN4/SPI1_NSS |
| Chân B6 | PA5 — GPIO/ADC_IN5/SPI1_SCK |
| Chân B7 | PA6 — GPIO/ADC_IN6/SPI1_MISO |
| Chân B8 | PA7 — GPIO/ADC_IN7/SPI1_MOSI |
| Chân C1 | VDD — Digital supply voltage |
| Chân C2 | VSS — Digital ground |
| Chân C3 | VREF+ — ADC positive reference voltage |
| Chân C4 | VDDA — Analog supply voltage |
| Chân C5 | VSSA — Analog ground |
| Chân C6 | PB0 — GPIO/ADC_IN8 |
| Chân C7 | PB1 — GPIO/ADC_IN9 |
| Chân C8 | PB2 — GPIO/BOOT1 |
| Chân D1 | PC13 — GPIO/RTC_TAMP1/WKUP2 |
| Chân D2 | PC14 — GPIO/OSC32_IN |
| Chân D3 | PC15 — GPIO/OSC32_OUT |
| Chân D4 | NRST — External reset input (active low) |
| Chân D5 | PH0 — OSC_IN |
| Chân D6 | PH1 — OSC_OUT |
| Chân D7 | VREF- — ADC negative reference voltage |
| Chân D8 | VSS — Digital ground |
| Chân E1 | PA8 — GPIO/USART1_CK |
| Chân E2 | PA9 — GPIO/USART1_TX |
| Chân E3 | PA10 — GPIO/USART1_RX |
| Chân E4 | PA11 — GPIO/USB_DM (USB differential minus) |
| Chân E5 | PA12 — GPIO/USB_DP (USB differential plus) |
| Chân E6 | PA13 — GPIO/SWDIO (alt position) |
| Chân E7 | VBAT — RTC battery domain supply |
| Chân E8 | VDD — Digital supply voltage |
| Chân F1 | PB8 — GPIO/I2C1_SCL (alt) |
| Chân F2 | PB9 — GPIO/I2C1_SDA (alt) |
| Chân F3 | PB10 — GPIO/I2C2_SCL/USART3_TX |
| Chân F4 | PB11 — GPIO/I2C2_SDA/USART3_RX |
| Chân F5 | PB12 — GPIO/SPI2_NSS |
| Chân F6 | PB13 — GPIO/SPI2_SCK |
| Chân F7 | PB14 — GPIO/SPI2_MISO |
| Chân F8 | PB15 — GPIO/SPI2_MOSI |
| Chân G1 | PC0 — GPIO/ADC_IN10 |
| Chân G2 | PC1 — GPIO/ADC_IN11 |
| Chân G3 | PC2 — GPIO/ADC_IN12 |
| Chân G4 | PC3 — GPIO/ADC_IN13 |
| Chân G5 | PC4 — GPIO/ADC_IN14 |
| Chân G6 | PC5 — GPIO/ADC_IN15 |
| Chân G7 | PC6 — GPIO |
| Chân G8 | PC7 — GPIO |
| Chân H1 | PC8 — GPIO |
| Chân H2 | PC9 — GPIO |
| Chân H3 | PC10 — GPIO/USART3_TX (alt) |
| Chân H4 | PC11 — GPIO/USART3_RX (alt) |
| Chân H5 | PC12 — GPIO/USART3_CK |
| Chân H6 | PD2 — GPIO/UART5_RX3 |
| Chân H7 | VSS — Digital ground |
| Chân H8 | VDD — Digital supply voltage |
Ứng dụng tiêu biểu
STM32L072RZI6D phù hợp cho 7 Áp dụngs: Battery-Powered IoT Sensor Nodes, Smart Metering Endpoints (Gas/Water/Electricity), USB-Connected Secure Edge Devices, Wearable Medical Devices, Industrial Asset Trackers, Wireless M-Bus / wM-Bus Endpoints, Remote Controls and HMI.
Battery-Powered IoT Sensor Nodes
The STM32L072RZI6D's Cortex-M0+ core running at 32MHz with 192KB code storage and 20KB SRAM delivers adequate throughput for sensor aggregation while drawing sub-uA in deep-sleep mode with RTC retention. The integrated AES-128 hardware block offloads encryption from the CPU, freeing MIPS for sensor fusion and LoRa/Sigfox/Thread protocol stacks. With 1.65V to 3.6V operation, the MCU accepts direct LiSO2, LiMnO2, and alkaline battery chemistries without a separate LDO. The compact 64-UFBGA 5x5 mm package saves PCB real-estate versus the LQFP64 variant, enabling coin-cell-powered designs.
Được đề xuất
Smart Metering Endpoints (Gas/Water/Electricity)
The STM32L072RZI6D is designed into battery-backed gas and water meters running 10-20 years on a primary cell, leveraging its deep-sleep current below 1 uA and the integrated AES-128 for wM-Bus / wireless M-Bus secure frame encryption. The 6KB EEPROM emulated on Flash provides 100k-cycle endurance for cumulative consumption registers and tamper-event timestamps. The 12-bit ADC with up to 16 channels interfaces directly to flow-sensor pulse outputs and tamper-detection switches. USB is unused in sealed-meter designs but enables service-port diagnostics during manufacturing and field updates.
Được đề xuất
USB-Connected Secure Edge Devices
The STM32L072RZI6D's integrated USB 2.0 Full-Speed PHY with crystal-less CRS operation removes the external 12MHz crystal and 22-ohm damping components, reducing PCB area and BOM cost by approximately $0.20 to $0.30. AES-128 hardware acceleration secures USB CDC/HID control interfaces and firmware update channels against man-in-the-middle attacks. The 32MHz Cortex-M0+ core handles USB protocol overhead plus application logic within the 192KB Flash budget. Designers benefit from ST USB device library and STM32CubeMX USB middleware.
Được đề xuất
Wearable Medical Devices
The STM32L072RZI6D's ultra-low-power Run mode (around 100 uA/MHz), Stop mode with full RAM retention, and Shutdown mode below 50 nA enable continuous wearable monitoring on coin-cell or rechargeable Li-Po batteries. The 12-bit ADC reads pulse-oximeter photodiode signals and galvanic skin-response sensors with adequate ENOB for health-monitoring thresholds. The capacitive-touch sensing hardware (TSC) supports reliable button and slider inputs through enclosure plastics. The 64-UFBGA 5x5 mm package suits space-constrained wrist-worn form factors.
Được đề xuất
Industrial Asset Trackers
The STM32L072RZI6D pairs with LoRa, Sigfox, NB-IoT, or BLE companion radios as a low-power host MCU, with AES-128 securing OTA update channels and sensor telemetry. The integrated TRNG provides entropy for cryptographic key generation required in industrial IoT security certifications. Sub-uA deep-sleep modes extend battery life to multi-year deployments on a single primary cell. The 192KB Flash accommodates full LoRaWAN or BLE protocol stacks with room for application firmware and bootloader/OTA staging.
Được đề xuất
Wireless M-Bus / wM-Bus Endpoints
The STM32L072RZI6D's AES-128 hardware encryption handles wM-Bus frame encryption (EN 13757-4) at full 32MHz CPU throughput without firmware-side crypto libraries. The 6KB EEPROM emulated on Flash stores consumption registers with 100k-cycle endurance required for utility-meter service intervals of 10-15 years. Sub-uA standby current with RTC retention supports battery-powered metering endpoints where the radio is the dominant power consumer. The integrated USB PHY enables configuration/upgrade via USB during installation and service operations.
Được đề xuất
Remote Controls and HMI
The STM32L072RZI6D's capacitive-touch hardware (TSC) supports reliable touch-button and slider interfaces through plastic enclosures without mechanical wear. The 32MHz Cortex-M0+ runs BLE/Thread stacks and user-interface state machines within the 192KB Flash budget. USB HID device support enables USB-based remote-control firmware updates during service. The 12-bit ADC reads potentiometer and battery-voltage sense channels. Wide 1.65V to 3.6V operation supports direct battery connection to alkaline, NiMH, or single-cell Li-ion chemistries.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM32L072RZI6D — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | STM32L072RZT6 | STM32L052RZI6D | STM32L073RZI6D | STM32L072RZI6 | STM32L072RZT6TR |
|---|---|---|---|---|---|---|
| Package | 64-UFBGA (5x5 mm) | 64-UFBGA (5x5 mm) - same | 64-UFBGA (5x5 mm) - same | 64-UFBGA (5x5 mm) - same | 64-UFBGA (5x5 mm) - same | 64-UFBGA (5x5 mm) - same |
| Brand | STMicroelectronics | STMicroelectronics - same | STMicroelectronics - same | STMicroelectronics - same | STMicroelectronics - same | STMicroelectronics - same |
| Core / Clock | Cortex-M0+ / 32 MHz | Cortex-M0+ / 32 MHz | Cortex-M0+ / 32 MHz | Cortex-M0+ / 32 MHz | Cortex-M0+ / 32 MHz | Cortex-M0+ / 32 MHz |
| Flash Memory | 192 KB | 384 KB (+100%) | 192 KB | 192 KB | 192 KB | 384 KB (+100%) |
| USB PHY | Yes (FS, crystal-less) | Yes (FS, crystal-less) | No (-100%) | Yes (FS, crystal-less) | Yes (FS, crystal-less) | Yes (FS, crystal-less) |
| AES-128 Hardware Encryption | Yes | Yes | No (-100%) | Yes | Yes | Yes |
| LCD Segment Controller | No | No | No | Yes (8x44) - differential | No | No |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Bảo phân biệt quan trọng
- AES-128 hardware encryption integrated (vsSTM32L052RZI6D)
- USB 2.0 Full-Speed PHY with crystal-less operation (vsSTM32L052RZI6D)
- No integrated LCD segment controller vs L073 sibling (vsSTM32L073RZI6D)
Ghi chú thiết kế
Route the USB D+ and D- differential pair (balls PA11/PA12) with 90-ohm differential impedance and length matching to within 150 mils per ST application note AN4834. Place the 4.7uF VBAT capacitor as close as possible to the VBAT ball to support RTC backup battery operation. Decoupling ESDVD via 100nF ceramic capacitors on each VDD ball with vias to a continuous ground plane. Per the ST datasheet, keep the 32.768kHz crystal traces short and surrounded by a ground guard ring to minimize RTC jitter.
The STM32L072RZI6D in 64-UFBGA 5x5 mm typically dissipates below 100mW at 32 MHz full load. The exposed center balls in the UFBGA-64 footprint are not present (per JEDEC BGA-64 5x5 mm standard this package does not have thermal pad balls), so heat is removed primarily through internal PCB copper planes. Estimated: at 25C ambient with a 4-layer PCB and a 1-square-inch ground-pour, theta_JA is approximately 60-80 C/W from ST datasheet curves. For sealed enclosures without airflow, derate clock frequency if core temperature exceeds 85C.
Place a 1uF X5R ceramic bypass capacitor on each VDD/VDDA ball pair as close to the package as physically possible, with via-stitching to the ground plane. Use a ferrite bead or small ferrite between VDD and VDDA if analog ADC noise is observed. Per the ST datasheet, supply voltage ramp rate must be monotonic from 0 to 1.65V to avoid BOR (brownout reset) false triggers. Estimated: at 32MHz Run mode the part draws roughly 8-10 mA; in deep-sleep with RTC retention it draws below 1 uA.
Do not enable both HSE bypass and HSI simultaneously without firmware coordination. The 64-UFBGA is harder to inspect and rework than LQFP-64; plan for X-ray inspection if BGA rework is anticipated in production. Boot pin configuration (BOOT0/BOOT1) must match the firmware boot strategy; tying BOOT0 high selects System Memory bootloader while BOOT0 low selects Flash. The integrated USB PHY does NOT require external 5V to 3.3V regulator - VBUS sensing is built in. Be aware that the AES-128 peripheral requires library initialization in firmware before use; it is NOT a transparent hardware block.
Thông tin tuân thủ
RoHS compliant per ST product page. Industrial temperature grade -40C to +85C; not AEC-Q100 qualified for automotive. Halogen-free per ST green-compliance documentation. Conflict-free smelter compliance per ST policy.
