PIC16LF1703-I/ML - 8-bit MCU, 3.5KB Flash, 10-bit ADC | Microchip
MPN: PIC16LF1703-I/ML ✓ Hoạt độngPIC16LF1703-I/ML Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path that integrates a CPU, Flash program memory, RAM, and a rich set of peripherals into one device. Within the broader taxonomy, an 8-bit MCU is a subset of microcontrollers (MCU -> microcontroller -> embedded processor -> semiconductor), which are themselves a category of integrated circuits. The PIC16LF1703 belongs to the PIC16F1xxx family and supports ICSP (In-Circuit Serial Programming) plus in-circuit debugging through two I/O pins, enabling rapid prototyping without removing the device from the board.
Key features include a 10-bit ADC with up to 8 channels, two op-amps, a DAC, two comparators, a 16-bit PWM module, and four 8-bit timers, providing high analog integration that traditionally required external components. The XLP technology provides ultra-low sleep current, making the device suitable for energy-harvesting and always-on applications where coin-cell life matters.
The PIC16LF1703 uses an enhanced Harvard RISC architecture with a 14-bit instruction word, allowing most instructions to execute in a single 125 ns cycle at 32 MHz. Its peripherals connect via a Peripheral Pin Select (PPS) matrix, simplifying PCB routing by letting designers remap digital functions to any available I/O.
Typical applications include IoT sensor nodes, wearables, consumer electronics, smart home devices, and industrial control subsystems. The combination of low power, small footprint, and rich analog integration suits cost-sensitive designs that need a single-chip solution.
When designing with this device, ensure your PCB layout reserves the exposed pad (EP) as a thermal and electrical ground, since QFN packages rely on the EP for heat dissipation. Decouple VDD with a 100 nF ceramic capacitor placed within 3 mm of the power pin for stable ADC readings.
This page synthesizes verified distributor pricing, drop-in alternatives, AEO-optimized FAQ, and design notes that supplement the manufacturer datasheet with practical, real-world guidance.
Bộ thay thế dễ dàng lắp đặt cho PIC16LF1703-I/ML — 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 PIC16LF1703-I/ML (cùng hình factor và footprint) — khác nhau ở Package, ADC, Program Memory (Flash), I/O Pins, Operating Temperature.
PIC16F1703-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1703-E/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1829-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1824-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1554-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LF1503-I/ML
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF1703-I/ML Tỷ lệ tối đa & tính chất điện
| Core Architecture | 8-bit PIC16 enhanced mid-range (RISC) |
| Program Memory (Flash) | 3.5 KB (2K x 14 instructions) |
| Data RAM | 256 bytes |
| CPU Clock Frequency | Up to 32 MHz |
| Instruction Throughput | 8 MIPS at 32 MHz |
| Instruction Width | 14 bits (Enhanced mid-range) |
| Operating Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 12 (with PPS remap) |
| ADC | 10-bit, 8 channels |
| Comparators | 2 |
| DAC | 5-bit, 1 channel |
| Op-Amps | 2 |
| PWM Channels | 16-bit enhanced PWM |
| Timers | 4 x 8-bit, 1 x 16-bit |
| Hộp | 16-pin QFN-EP (4x4 mm) |
| Nhiệt độ hoạt động | -40C to +85C (industrial) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16LF1703-I/ML
| Chân 1 | RA5/ICSPDAT/ICSPCLK — I/O / ICSP data / in-circuit serial programming clock |
| Chân 2 | RA0/AN0/C1IN0+ — I/O / analog input 0 / comparator input |
| Chân 3 | RA1/AN1/C1IN0-/C2IN0- — I/O / analog input 1 / comparator input |
| Chân 4 | RA2/AN2 — I/O / analog input 2 |
| Chân 5 | RA3/MCLR/VPP — I/O / reset (active low) / programming voltage |
| Chân 6 | RA4/AN3 — I/O / analog input 3 |
| Chân 7 | VDD — Positive supply voltage (1.8 V to 3.6 V) |
| Chân 8 | VSS — Ground reference |
| Chân 9 | RB4/AN10 — I/O / analog input 10 |
| Chân 10 | RB5/AN11 — I/O / analog input 11 |
| Chân 11 | RB6/ICSPCLK — I/O / in-circuit serial programming clock |
| Chân 12 | RB7/ICSPDAT — I/O / ICSP data |
| Chân 13 | RC0 — I/O |
| Chân 14 | RC1 — I/O |
| Chân 15 | RC2 — I/O |
| Chân 16 | RC3 — I/O |
Ứng dụng tiêu biểu
PIC16LF1703-I/ML phù hợp cho 7 Áp dụngs: IoT Sensor Nodes, Wearable Fitness Bands, Smart Home Wall Switches, Battery-Powered Medical Devices, Consumer Remote Controls, Industrial Sensor Transmitters, LED Lighting Controllers.
IoT Sensor Nodes
The PIC16LF1703-I/ML's XLP nano-Watt sleep current and 1.8 V minimum VDD make it ideal for battery-powered IoT sensor nodes that must run for years on a coin cell. The 10-bit 8-channel ADC with built-in op-amps and comparators enables direct sensor interface (temperature, humidity, light, gas) without external analog components. With 3.5 KB Flash and 256 bytes RAM, the device can run a basic BLE beacon or LoRaWAN end-node state machine.
Được đề xuất
Wearable Fitness Bands
The PIC16LF1703-I/ML's small QFN-16 EP 4x4 mm footprint and 1.8 V operating range suit wearable fitness bands where PCB space is constrained and battery life is critical. The 16-bit enhanced PWM can drive LED indicators directly, while the 10-bit ADC reads heart-rate or motion sensor analog signals. XLP technology enables sleep current in the nano-amp range during idle periods between sensor readings.
Được đề xuất
Smart Home Wall Switches
The PIC16LF1703-I/ML can decode capacitive-touch buttons through its on-chip comparators and op-amps, eliminating the need for an external touch controller. Its 16 I/O pins (with PPS) accommodate multiple LEDs, a triac control, and zero-cross detection for mains dimming. The device's wide 1.8V-3.6V range, when paired with a small switching supply, enables compact switch designs that fit behind a wall plate.
Được đề xuất
Battery-Powered Medical Devices
The PIC16LF1703-I/ML's ultra-low XLP sleep current and 256-byte RAM footprint make it well-suited for portable medical devices such as pill reminders, glucose meters, and digital thermometers. The 10-bit ADC reads thermistor or glucometer strip signals, while the built-in op-amps condition low-level analog signals without external amplifiers. The compact 16-pin QFN is small enough to fit inside a glucose meter housing.
Được đề xuất
Consumer Remote Controls
The PIC16LF1703-I/ML integrates well in IR / RF remote controls where low-power sleep, AES-capable peripherals, and small package are priorities. Its 3.5 KB Flash is enough to run NEC / RC5 / RC6 codes plus custom macros, while 8 MIPS throughput handles button-debounce and IR-pulse generation. Operating from a single 3 V coin cell, the device can drive a low-power infrared LED directly via the 16-bit PWM.
Được đề xuất
Industrial Sensor Transmitters
The PIC16LF1703-I/ML provides 4-20 mA loop-powered sensor transmitters with the necessary analog integration: 10-bit ADC, op-amps, comparators, and 5-bit DAC. Its industrial temperature grade (-40C to +85C) and small QFN package suit compact field-mounting transmitters. Internal op-amps can be configured as either buffer or PGA, eliminating external components.
Được đề xuất
LED Lighting Controllers
The PIC16LF1703-I/ML's 16-bit enhanced PWM and 10-bit ADC combine to deliver highly efficient LED controllers for low-power lighting. The device generates smooth logarithmic dimming curves, supports analog or PWM input dimming via op-amps, and provides on-chip temperature feedback for thermal foldback. The QFN-16 EP package and minimal external components keep the BOM small.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LF1703-I/ML — 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 | PIC16F1703-I/ML | PIC16LF1703-E/ML | PIC16F1829-I/ML | PIC16F1824-I/ML | PIC16LF1554-I/ML | PIC16LF1503-I/ML |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | QFN-16 EP (4x4 mm) | QFN-16 EP (4x4 mm) - same | QFN-16 EP (4x4 mm) - same | QFN-16 EP (4x4 mm) - same | QFN-16 EP (4x4 mm) - same | QFN-16 EP (4x4 mm) - same | QFN-16 EP (4x4 mm) - same |
| Flash Memory | 3.5 KB | 3.5 KB | 3.5 KB | 14 KB | 4 KB | 1 KB | 2 KB |
| RAM | 256 bytes | 256 bytes | 256 bytes | 1 KB | 256 bytes | 128 bytes | 64 bytes |
| Operating Voltage | 1.8 V to 3.6 V | 1.8 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 20 MHz |
| ADC | 10-bit, 8 channels | 10-bit, 8 channels | 10-bit, 8 channels | 10-bit, 12 channels | 10-bit, 8 channels | 10-bit, 8 channels | 10-bit, 6 channels |
| Op-Amps / DAC | 2 op-amps + 5-bit DAC | 2 op-amps + 5-bit DAC | 2 op-amps + 5-bit DAC | 2 op-amps + 5-bit DAC | 2 op-amps + 5-bit DAC | None | None |
| XLP Low Power | Yes (nano-Watt sleep) | Yes | Yes | Yes | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- High analog integration in 16-pin package (vsPIC16LF1554-I/ML)
- Double Flash and 4x RAM with same pinout (vsPIC16LF1503-I/ML)
- Industrial temperature range option in same package (vsPIC16LF1703-I/ML vs PIC16LF1703-E/ML)
- 5 V operation without redesign (vsPIC16F1703-I/ML)
Ghi chú thiết kế
The PIC16LF1703-I/ML requires a 100 nF (or larger) decoupling capacitor placed within 3 mm of VDD pin 7. A bulk capacitor on the order of 1-10 uF is recommended on the battery node to suppress load-dump transients when driving LEDs or motors. The VDD range is 1.8 V to 3.6 V; operation above 3.6 V can permanently damage the LF variant. Add a reverse-protection diode if the design uses a coin cell.
The QFN-16 EP package uses the exposed pad as the primary thermal path. Use a PCB land pattern with at least 4 thermal vias (0.3 mm drill, 0.5 mm pitch) connecting the EP to a 1 square inch copper pour on the bottom layer. Estimated theta_JA is 60 C/W with this layout - sufficient for industrial -40C to +85C operation at moderate loads. A poor EP solder joint can elevate junction temperature by 30C or more.
PPS (Peripheral Pin Select) lets you reassign most digital peripherals (UART, SPI, I2C, PWM, interrupts) to nearly any I/O pin, simplifying PCB routing. Plan your I/O assignments in MPLAB X IDE first using the pin-manager, then route the board - the pinout from the IDE-generated headers is the source of truth. PPS remapping is one-time in CCP registers and persists through reset if configured properly.
Pin 5 (RA3/MCLR/VPP) is shared between general-purpose I/O and the reset function. If used as I/O, disable MCLR via configuration bits (MCLRE = 0), otherwise the device will reset on falling edge of pin 5. The ICSP pins (RB6/ICSPCLK and RB7/ICSPDAT) must be left free for in-circuit programming during development, otherwise a production programmer cannot re-flash the device.
For ADC accuracy, route analog input traces away from digital PWM and oscillator traces; keep analog ground (AGND) as a separate net tied to digital ground (DGND) at one point only. Use a 10 nF or larger cap on the analog reference (if used) to suppress noise. Operating the ADC at a slower clock (e.g. FOSC/16) yields better linearity at the cost of conversion time.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Not AEC-Q100 qualified; AEC-Q100 automotive grade is on the PIC16F1703-E/ML automotive part number. Lead-free and halogen-free packaging standard.
