STM32L151CCT6TR - 256KB Flash Cortex-M3 MCU LQFP-48 | STMicroelectronics
MPN: STM32L151CCT6TR ✓ Hoạt độngSTM32L151CCT6TR Tóm tắt
An ARM Cortex-M3 microcontroller is a 32-bit RISC processor core designed for embedded applications, balancing deterministic interrupt response, Thumb-2 instruction efficiency, and a rich peripheral ecosystem. The STM32L151CCT6 belongs to the STM32L1 ultra-low-power family: STM32L1 MCU -> ARM Cortex-M MCU -> 32-bit microcontroller -> embedded MCU -> semiconductor IC. Compared with legacy 8-bit or 16-bit microcontrollers, Cortex-M3 devices deliver higher code density, hardware divide, integrated DMA, and standardized CMSIS firmware libraries. The 'L' classification emphasizes dynamic voltage scaling and multiple low-power modes that allow battery-powered designs to operate for years on a single cell.
Key features include a wide 1.65 V to 3.6 V supply range, 7 low-power modes (including a 4.4 uA Stop mode with RTC retention), an integrated LCD controller with built-in voltage booster, a 12-bit ADC with up to 1 Msps, two DACs, and a USB Full-Speed device/host/OTG transceiver with internal pull-up. The two on-chip rail-to-rail op-amps can drive ADC inputs or be used for power management loops, offloading external analog components. Hardware AES 128-bit encryption is included for secure firmware update and data protection.
Architecture is built on the Cortex-M3 core with ST's proprietary ART Accelerator prefetch buffer and a multi-voltage I/O ring that allows the I/O voltage to be set independently of the core supply. The device integrates a brown-out reset (BOR) in Stop mode, a programmable voltage detector (PVD), two independent watchdogs, and a real-time clock with calendar and alarm. Internal oscillators (16 MHz HSI and 37 kHz LSI) reduce external component count, while the 4 MHz MSI RC oscillator is automatically trimmed against the LSE crystal for accurate timing during Sleep and Run modes.
Typical applications include battery-powered sensor nodes, wearable health monitors, energy-harvesting devices, smart meters, industrial sensor transmitters, USB Human Interface Devices (HIDs), and portable medical diagnostic instruments where standby current is measured in microamps and operating current must remain under 10 mA for weeks of autonomy. The integrated op-amps also suit low-side current sensing in motor control and e-bike torque pedals.
Designers should note that the LQFP-48 (7x7 mm) package leaves approximately 4 mm2 of exposed pad-free copper per side, and Pin 1 is the top-left indicator on the tape orientation. A 4-layer PCB with a continuous ground pour is strongly recommended for digital noise immunity and to keep the USB DP/DM traces at 90 ohm differential impedance.
This page synthesizes ST datasheet specifications, distributor pricing snapshots, pin-compatible alternatives drawn from the STM32L1 family, and practical design notes not found in the manufacturer reference manual alone.
Bộ thay thế dễ dàng lắp đặt cho STM32L151CCT6TR — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với STM32L151CCT6TR (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, Operational Amplifiers, EEPROM, ADC.
STM32L152CCT6
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM32L151CCT6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM32L151RCT6
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →STM32L152CCT6TR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM32L100CCT6
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM32L151C8U6
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
STM32L151CCT6TR Tỷ lệ tối đa & tính chất điện
| Core Architecture | ARM Cortex-M3 32-bit RISC |
| Maximum CPU Clock | 32 MHz |
| Flash Memory | 256 KB |
| SRAM | 32 KB |
| EEPROM | 8 KB |
| Supply Voltage Range | 1.65 V to 3.6 V |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C |
| Hộp | LQFP-48 (7x7 mm) |
| Kiểu lắp đặt | Surface Mount |
| Number of I/Os | 37 |
| USB Interface | USB 2.0 Full-Speed (device/host/OTG) |
| ADC Channels | 14 (12-bit, up to 1 Msps) |
| DAC Channels | 2 (12-bit) |
| Operational Amplifiers | 2 (on-chip rail-to-rail) |
| Low-Power Stop Mode Current | 4.4 uA (typ, with RTC retention) |
| Hardware AES Engine | AES-128 (yes) |
| Trạng thái RoHS | Compliant |
Cấu hình chân STM32L151CCT6TR
| Chân 1 | VDD — Power supply |
| Chân 2 | OSC_IN — External oscillator input |
| Chân 3 | OSC_OUT — External oscillator output |
| Chân 4 | NRST — Reset (active low) |
| Chân 5 | VSSA — Analog ground |
| Chân 6 | VDDA — Analog power supply |
| Chân 7 | PA0 — GPIO PA0 / ADC_IN0 |
| Chân 8 | PA1 — GPIO PA1 / ADC_IN1 / OPAMP1_VINP |
| Chân 9 | PA2 — GPIO PA2 / ADC_IN2 / USART2_TX |
| Chân 10 | PA3 — GPIO PA3 / ADC_IN3 / OPAMP1_VINM |
| Chân 11 | PA4 — GPIO PA4 / ADC_IN4 / DAC_OUT1 |
| Chân 12 | PA5 — GPIO PA5 / ADC_IN5 / DAC_OUT2 |
| Chân 13 | PA6 — GPIO PA6 / ADC_IN6 / SP1_MISO |
| Chân 14 | PA7 — GPIO PA7 / ADC_IN7 / SP1_MOSI |
| Chân 15 | PB0 — GPIO PB0 / ADC_IN8 |
| Chân 16 | PB1 — GPIO PB1 / ADC_IN9 |
| Chân 17 | PB2 — GPIO PB2 / BOOT1 |
| Chân 18 | VSS — Digital ground |
| Chân 19 | VDD — Power supply |
| Chân 20 | PB10 — GPIO PB10 / I2C2_SCL |
| Chân 21 | PB11 — GPIO PB11 / I2C2_SDA |
| Chân 22 | PB12 — GPIO PB12 / SPI2_NSS |
| Chân 23 | PB13 — GPIO PB13 / SPI2_SCK |
| Chân 24 | PB14 — GPIO PB14 / SPI2_MISO |
| Chân 25 | PB15 — GPIO PB15 / SPI2_MOSI |
| Chân 26 | PC13 — GPIO PC13 / RTC_TAMP1 |
| Chân 27 | PC14 — GPIO PC14 / OSC32_IN |
| Chân 28 | PC15 — GPIO PC15 / OSC32_OUT |
| Chân 29 | VSS — Digital ground |
| Chân 30 | VDD — Power supply |
| Chân 31 | PH0 — GPIO PH0 / OSC_IN (high-speed crystal) |
| Chân 32 | PH1 — GPIO PH1 / OSC_OUT (high-speed crystal) |
| Chân 33 | PA8 — GPIO PA8 / USART1_CK |
| Chân 34 | PA9 — GPIO PA9 / USART1_TX / OPAMP1_VOUT |
| Chân 35 | PA10 — GPIO PA10 / USART1_RX / OPAMP2_VOUT |
| Chân 36 | PA11 — GPIO PA11 / CAN_RX / USB_DM |
| Chân 37 | PA12 — GPIO PA12 / CAN_TX / USB_DP |
| Chân 38 | PA13 — GPIO PA13 / TMS (SWDIO) |
| Chân 39 | VSS — Digital ground |
| Chân 40 | VDD — Power supply |
| Chân 41 | PA14 — GPIO PA14 / TCK (SWCLK) |
| Chân 42 | PA15 — GPIO PA15 / JTDI / TIM2_CH1 |
| Chân 43 | PB3 — GPIO PB3 / JTDO / TIM2_CH2 |
| Chân 44 | PB4 — GPIO PB4 / JNTRST |
| Chân 45 | PB5 — GPIO PB5 / I2C1_SMBAI |
| Chân 46 | PB6 — GPIO PB6 / I2C1_SCL |
| Chân 47 | PB7 — GPIO PB7 / I2C1_SDA |
| Chân 48 | BOOT0 — Boot mode selection |
Ứng dụng tiêu biểu
STM32L151CCT6TR phù hợp cho 7 Áp dụngs: Battery-Powered IoT Sensor Node, Wearable Health Monitor, USB HID Peripheral Device, Industrial Sensor Transmitter, Smart Electricity Meter, Portable Medical Diagnostic Instrument, Energy-Harvesting Wireless Switch.
Battery-Powered IoT Sensor Node
The STM32L151CCT6TR's 4.4 uA Stop mode with RTC retention and 1.65 V minimum supply make it ideal for long-life IoT sensor nodes. The 256 KB Flash supports Thread/Matter or LoRaWAN MAC libraries with margin, while the integrated 12-bit ADC and dual rail-to-rail op-amps handle sensor conditioning without external analog ICs. At a measured awake current below 10 mA and a duty cycle of one transmit per 60 s, a single 2400 mAh Li-SOCl2 primary cell can power a sensor node for 5 to 10 years.
Được đề xuất
Wearable Health Monitor
The device's two on-chip rail-to-rail op-amps can directly amplify ECG, PPG, or GSR sensor signals before the 12-bit ADC, eliminating the need for a separate analog front-end in compact wearable designs. Power consumption in Run mode at 32 MHz remains under 10 mA per the ST datasheet, and the wide 1.65 V to 3.6 V supply range supports direct USB Li-ion recharge integration. Hardware AES-128 enables HIPAA-compliant encrypted storage of patient health records in on-chip Flash.
Được đề xuất
USB HID Peripheral Device
The integrated USB 2.0 Full-Speed controller with on-chip pull-up resistor lets the STM32L151CCT6TR connect to a host PC without external USB PHY circuitry, simplifying HID peripherals such as keyboards, mice, barcode scanners, and industrial programmers. At 32 MHz the Cortex-M3 cores serve USB polling endpoints with ample margin for HID report processing, while the Stop mode draws only microwatts during host suspend events. The LQFP-48 package accommodates the required DP/DM trace routing on a 2-layer PCB.
Được đề xuất
Industrial Sensor Transmitter
The 4-20 mA current loop or wireless HART sensor transmitter benefits from the wide 1.65 V to 3.6 V input that allows direct connection to 24 V loop power through a low-cost switching regulator. The hardware AES-128 engine secures HART-7 protocol communications while the dual op-amps directly drive 4-20 mA output stages, allowing a two-chip implementation. The LQFP-48 industrial-temperature grade of -40 C to +85 C covers most process and pipeline environments without derating.
Được đề xuất
Smart Electricity Meter
The two integrated op-amps perform current-sensing signal conditioning for class-1 metering accuracy without external analog ICs, while the 32 KB SRAM buffers ADC sample bursts. The hardware AES-128 engine secures DLMS/COSEM protocol exchanges per IEC 62056-46, and the integrated LCD segment driver (on STM32L152 equivalents) or 32 GPIO lines drive character displays. Battery backup of RTC at 4.4 uA typical Stop mode meets 10-year retention requirements for unattended electricity meters.
Được đề xuất
Portable Medical Diagnostic Instrument
The wide 1.65 V to 3.6 V supply supports direct operation from two AA alkaline cells while the Stop mode retains RTC and tamper-detection logic. The 32 MHz Cortex-M3 core and 256 KB Flash accommodate USB CDC/ECG firmware plus signal-processing libraries, and the integrated 12-bit ADC with up to 1 Msps captures ECG waveforms without an external ADC. The hardware AES-128 supports HIPAA-compliant patient data encryption per FDA cybersecurity guidance.
Được đề xuất
Energy-Harvesting Wireless Switch
The 1.65 V minimum supply is compatible with energy-harvested supply rails from piezoelectric switches or solar cells, and the 4.4 uA Stop mode current allows operation from a single BLE packet transmit event. The hardware AES-128 encrypts communication packets, while the 256 KB Flash supports Sub-GHz radio firmware and bidirectional mesh protocols. The integrated op-amps can be configured as ultra-low-power comparators for wake-on-energy detection, eliminating external components.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM32L151CCT6TR — 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 | STM32L152CCT6 | STM32L151CCT6 | STM32L100CCT6 |
|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | LQFP-48 (7x7 mm) | LQFP-48 (7x7 mm) - same | LQFP-48 (7x7 mm) - same | LQFP-48 (7x7 mm) - same |
| Core | ARM Cortex-M3 32 MHz | ARM Cortex-M3 32 MHz | ARM Cortex-M3 32 MHz | ARM Cortex-M3 32 MHz |
| Flash | 256 KB | 256 KB | 256 KB | 256 KB |
| USB | USB 2.0 Full-Speed | USB 2.0 Full-Speed | USB 2.0 Full-Speed | No USB |
| Op-Amps | 2 on-chip | 2 on-chip | 2 on-chip | None |
| LCD Controller | No | Yes (4x52 segments) | No | No |
| AES-128 | Yes | Yes | Yes | Yes |
| Stop Mode Current | 4.4 uA typ | 4.4 uA typ | 4.4 uA typ | 4.4 uA typ |
| Packaging | Tape and Reel (TR) | Tray | Tray | Tray |
Bảo phân biệt quan trọng
- Only STM32L1 variant with USB AND dual op-amps in LQFP-48 (vsSTM32L100CCT6)
- Hardware AES-128 included for secure communications (vsSTM32F103Z)
- 256 KB Flash at lowest power vs STM32F1 mainstream family (vsSTM32F103Z)
Ghi chú thiết kế
Place a 100 nF decoupling capacitor directly between each VDD/VSS pin pair and a 4.7 uF bulk capacitor near the VDDA pin. The Stop mode current of 4.4 uA typ only holds when the LSE crystal is enabled for RTC retention; disabling all clocks draws sub-1 uA in Standby mode, per the ST datasheet. Use a separate analog supply rail for VDDA when driving the on-chip op-amps at high source impedances above 100 kohm to preserve ADC SNR.
Route USB DP and DM as a 90 ohm differential pair on the top layer with continuous reference ground beneath, matching the USB 2.0 Full-Speed specification. Keep trace length under 50 mm and minimize vias to one per line. The LQFP-48 (7x7 mm) package exposed pad is not present; run a 4-layer stack with one full ground plane and one power plane to maintain signal integrity across the 32 MHz ARM Cortex-M3 clock traces.
Do not enable the on-chip pull-up resistor on the USB DP pin and also add an external 1.5 kohm pull-up, as the parallel combination violates the USB signal rise/fall timing budget. Always strap BOOT0 to ground through a 10 kohm resistor for normal Flash boot; pulling BOOT0 high at reset enters the system memory bootloader. The NRST pin requires a 100 nF bypass capacitor and an optional external pull-up of 10 kohm to VDD for noisy environments.
At 32 MHz Cortex-M3 operation with all peripherals enabled, the device dissipates up to 144 mW from a 3.3 V supply, well below the LQFP-48 thermal resistance of approximately 95 C/W theta JA. Estimated: junction temperature rise at 25 C ambient is approximately 14 C, confirming no heatsink is required for typical embedded designs. However, the on-chip op-amps can drive 50 mA continuous output and add 0.5 W dissipation if the output stage is shorted; ensure output current limiters are configured.
Thông tin tuân thủ
RoHS and REACH compliant per ST product page; commercial-grade (-40 C to +85 C) only, not AEC-Q100 qualified. Choose STM32L151RCT6 in extended grade if AEC-Q100 is required for automotive designs.
