STM8S103F3P6 - 8-bit 16MHz MCU, 8KB Flash, 20-TSSOP | STMicroelectronics
MPN: STM8S103F3P6 ✓ Hoạt độngSTM8S103F3P6 Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripheral interfaces. The STM8 core uses an advanced Harvard architecture with a 16-bit instruction word and 32-bit program counter extension for efficient code density. The "Access line" designation indicates this part targets cost-optimized designs with sufficient peripherals for general control tasks. This positions the STM8S103F3P6 within the broader taxonomy: MCU -> 8-bit microcontroller -> STM8 family -> STM8S access line -> STMicroelectronics 8-bit portfolio.
Key features include 8 KB Flash with in-application programming (I2AP) capability, 640-byte true data EEPROM rated for 300 k write/erase cycles, a 10-bit ADC with up to 5 channels, and a 4-channel 16-bit PWM/timer structure supporting capture, compare, and one-pulse modes. The integrated SWIM debug interface and on-chip watchdog with window option simplify development and field reliability. The 20-pin TSSOP package offers a compact 6.5 mm × 4.4 mm footprint suitable for space-constrained PCBs.
Typical applications include low-cost consumer appliances, sensor interface nodes, LED lighting controllers, battery chargers, simple motor drivers, and replacement of legacy 8051 or PIC16 designs. The wide 2.95-5.5 V supply range also supports 3.3 V and 5 V industrial systems without level shifters.
Designers should note that the STM8S103F3P6 (industrial grade, -40 °C to 85 °C) and the STM8S003F3P6 differ in feature set; the '103 part includes a beeper and AWU peripherals absent on the '003. For higher memory needs, the STM8S105 series provides 32 KB Flash in larger packages. This page synthesizes distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho STM8S103F3P6 — 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 STM8S103F3P6 (cùng hình factor và footprint) — khác nhau ở Flash Program Memory, Package, ADC Resolution, Product Type, I/O Ports.
STM8S103F2P6
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →STM8S003F3P6
✅ Drop-In✗ Hết hàng
$0.36 / Đơn vị
Xem tài liệu →STM8S103F3P6TR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
STM8S103F3P6 Tỷ lệ tối đa & tính chất điện
| Core | STM8 8-bit (Harvard architecture) |
| Tần số xung maksimum | 16 MHz |
| Program Memory (Flash) | 8 KB |
| Data EEPROM | 640 B |
| RAM | 1 KB |
| Data EEPROM Endurance | 300 k cycles |
| Supply Voltage Range | 2.95 V to 5.5 V |
| Nhiệt độ hoạt động | -40 °C to +85 °C |
| Number of I/O Pins | 16 |
| ADC | 10-bit, up to 5 channels |
| Timers | 3 × 16-bit (TIM1, TIM2, TIM4) |
| Communication Interfaces | UART, SPI, I²C |
| Hộp | 20-TSSOP |
| Debug Interface | SWIM (single-wire) |
| Watchdog | Window watchdog + independent WDG |
| Kiểu lắp đặt | Surface Mount |
Cấu hình chân STM8S103F3P6
| Chân 1 | VDD — Supply voltage (2.95 V to 5.5 V) |
| Chân 2 | PA1 — Port A bit 1 / SWIM data |
| Chân 3 | PA2 — Port A bit 2 / oscillator output |
| Chân 4 | PD1 — Port D bit 1 |
| Chân 5 | PB0 — Port B bit 0 / AIN0 / TIM1_CH1N |
| Chân 6 | PB1 — Port B bit 1 / AIN1 |
| Chân 7 | PB2 — Port B bit 2 / AIN2 |
| Chân 8 | PB3 — Port B bit 3 / AIN3 |
| Chân 9 | PB4 — Port B bit 4 / AIN4 |
| Chân 10 | PB5 — Port B bit 5 / BEEPER output |
| Chân 11 | PB6 — Port B bit 6 / I²C SDA |
| Chân 12 | PB7 — Port B bit 7 / I²C SCL |
| Chân 13 | PC1 — Port C bit 1 / TIM1_CH1 |
| Chân 14 | PC2 — Port C bit 2 / TIM1_CH2 |
| Chân 15 | PC3 — Port C bit 3 / TIM1_CH3 |
| Chân 16 | PC4 — Port C bit 4 / TIM1_CH4 |
| Chân 17 | PC5 — Port C bit 5 / SPI SCK |
| Chân 18 | PC6 — Port C bit 6 / SPI MOSI |
| Chân 19 | PC7 — Port C bit 7 / SPI MISO |
| Chân 20 | VSS — Ground |
Ứng dụng tiêu biểu
STM8S103F3P6 phù hợp cho 6 Áp dụngs: Consumer Appliance Control, LED Lighting Driver, Battery Charger Controller, Sensor Interface Module, Replacement for Legacy 8051 / PIC16 Designs, Simple Motor Driver / BLDC Companion.
Consumer Appliance Control
The STM8S103F3P6 fits cost-sensitive white-goods and small-appliance controllers thanks to its 8 KB Flash, 16 MHz core, and integrated peripherals that replace discrete glue logic. With 16 GPIO pins, a beeper driver, and a 10-bit ADC for sensing temperature or voltage, the part handles keypad scanning, triac zero-cross control, and indicator PWM in a single chip. Typical subsystems: washing-machine user interface, microwave keypad, fan speed controller, and rice-cooker thermostat.
Được đề xuất
LED Lighting Driver
The STM8S103F3P6 drives multichannel LED lighting by combining its 4-channel 16-bit PWM timer with 10-bit ADC feedback for closed-loop current regulation. The 5.5 V tolerance supports 5 V analog reference designs for photometric sensors, while the 16 MHz core is fast enough to run DMX-style or PWM-dim protocols. Integrated beeper can signal fault conditions without an extra timer.
Được đề xuất
Battery Charger Controller
For NiMH, Li-ion, or lead-acid charger designs, the STM8S103F3P6 offers the ADC for V/I sensing, a PWM channel for synchronous buck or linear regulation, and the AWU peripheral for sleep-mode monitoring. The 640-byte true EEPROM stores charging profiles and cycle counters without external memory. UART output can report state to a host MCU or BLE module.
Được đề xuất
Sensor Interface Module
Industrial sensor nodes leverage the STM8S103F3P6 I²C/SPI master capability plus the 10-bit ADC to read multiple analog and digital sensors. UART enables Modbus RTU slave communication on RS-485 segments, and the 8 KB Flash holds calibration tables for thermocouple or bridge-sensor linearization. The -40 °C to +85 °C industrial range supports outdoor and factory-floor deployment.
Được đề xuất
Replacement for Legacy 8051 / PIC16 Designs
Designers moving legacy 8051 or PIC16 firmware gain a modern toolchain and on-chip peripherals when migrating to the STM8S103F3P6. With 8 KB Flash, 1 KB RAM, three timers, and a SWIM debug interface, it covers most small-control applications while offering better interrupt latency and a true C compiler. The 20-TSSOP package drop-in fits existing 8051 footprints when the OEM PCB was designed for an SOP-20 MCU.
Được đề xuất
Simple Motor Driver / BLDC Companion
The STM8S103F3P6 acts as a user-interface and safety companion to a dedicated motor-driver IC in low-power BLDC, stepper, or brushed-DC applications. It runs PWM command generation, button/encoder input, fault monitoring via ADC, and UART comms to a host controller. The beeper provides audible stall alarms without external timer hardware.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM8S103F3P6 — 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 | STM8S103F2P6 | STM8S003F3P6 | STM8S103F3P6TR |
|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 20-TSSOP | 20-TSSOP - same | 20-TSSOP - same | 20-TSSOP - same |
| Flash Memory | 8 KB | 4 KB | 8 KB | 8 KB |
| RAM | 1 KB | 1 KB | 1 KB | 1 KB |
| EEPROM | 640 B | 640 B | 640 B | 640 B |
| Core Clock | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| Beeper Peripheral | Yes | Yes | No | Yes |
| Operating Temperature | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C | -40 °C to +85 °C |
Bảo phân biệt quan trọng
- True data EEPROM on-chip (vsSTM8S003F3P6)
- Higher Flash density vs F2 sibling (vsSTM8S103F2P6)
- Industrial temperature grade as standard (vsSTM8S103F3P3)
Ghi chú thiết kế
The STM8S103F3P6 has internal voltage regulation derived from VDD; decouple VDD/VSS with a 100 nF ceramic capacitor placed within 5 mm of the pins plus a bulk 4.7 µF tantalum or electrolytic for switching transients. The AWU peripheral draws only a few µA from VDD in halt mode, but peripherals left clocked can multiply supply current. Activate PWR_HSITRIM_Q1..Q4 settings and disable unused peripherals in the CLK_PCKENR register to minimize run current.
For the 20-TSSOP package, route the SWIM pin (PA1) directly to a 4-pin test header to keep programming accessible without rework. Place the external reset pull-up (10 kΩ to VDD) close to the NRST pin if the application uses external reset. The 16 MHz HSE crystal or resonator, if used, should sit adjacent to pins PA1/PA2 with short symmetric traces and a ground guard ring for EMI robustness.
Do not confuse the STM8S103F3P6 (industrial -40 °C to +85 °C, with beeper/AWU) with the STM8S003F3P6 (no beeper/AWU) or STM8S103F3P3 (commercial 0 °C to 70 °C) - same package, different peripheral set or temperature grade. When migrating firmware from STM8S105 series, verify ADC channel count (5 vs 16) and timer resources. The SWIM debug interface is single-wire; do not add external pull-ups on PA1 that exceed 10 kΩ or debug will fail.
Thông tin tuân thủ
RoHS/REACH compliant per ST product page; AEC-Q100 not qualified (consumer/industrial grade); lead-free TSSOP package per JEDEC J-STD-020 MSL1
