PIC16F18346T-I/SO - 32MHz 8-bit XLP MCU, 28KB Flash, 20-SOIC
MPN: PIC16F18346T-I/SO ✓ Hoạt độngPIC16F18346T-I/SO Tóm tắt
An 8-bit PIC microcontroller is a low-power, RISC-architecture single-chip computer built around an enhanced mid-range core with a Harvard memory layout, designed for deterministic real-time control of analog and digital peripherals. PIC MCUs sit within the broader category of microcontrollers (MCUs), which are themselves a sub-class of embedded processors; XLP (eXtreme Low Power) variants add nanoWatt sleep modes that bring quiescent current down to the microamp range for battery-powered and energy-harvesting designs.
Key features include 10-bit ADC, 5-bit DAC, two Comparators, a Numerically Controlled Oscillator (NCO), Configurable Logic Cells (CLC), Complementary Waveform Generator (CWG), 10-bit PWM, two Capture/Compare/PWM (CCP) modules, and Peripheral Pin Select (PPS) for flexible digital-peripheral pin mapping. Communication interfaces include two SPI/I2C and one EUSART, plus 18 I/O pins supporting capacitive-touch sensing via the mTouch peripheral.
The architecture uses a 14-bit instruction word with single-cycle execution except for program branches, and the 32MHz internal oscillator supports a 125ns instruction cycle. PPS, CLC, CWG, and NCO are core-independent peripherals (CIPs) that operate without CPU intervention, offloading waveform generation, signal conditioning, and protocol bridging tasks. The device also integrates a Functional Safety (FuSa) capability and operates from 1.8V to 5.5V VDD, with on-chip voltage reference and zero-cross detection for power-conscious designs.
Typical applications include low-power IoT sensor nodes, consumer touch-interface products, LED lighting controllers, battery-powered instrumentation, automotive body and accessory subsystems, and small-form-factor motor-control boards. The combination of CLC + NCO + CWG enables stand-alone waveform synthesis with the CPU in sleep, which is particularly useful in power-conversion and lighting-control designs.
When designing with this part, select the appropriate ICSP programming header pins and reserve the PGD/PGC pair as shown in the Microchip datasheet. Use PPS remapping to route digital peripherals only to PPS-capable pins, and keep total I/O sink/source current per pin within the 25 mA/port datasheet limits to avoid triggering the thermal shutdown.
This page synthesizes distributor pricing, drop-in package-equivalent alternatives, and practical design notes not found in the standalone manufacturer datasheet, giving engineers a single reference for sourcing and selection decisions.
Bộ thay thế dễ dàng lắp đặt cho PIC16F18346T-I/SO — 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 PIC16F18346T-I/SO (cùng hình factor và footprint) — khác nhau ở ADC, Package, Core Independent Peripherals, Operating Temperature, DAC.
PIC16F18346-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18346T-I/SS
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F18346-E/SO
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F18345-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F18344-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F18346T-I/SO Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit enhanced mid-range |
| Family | PIC16F183xx (XLP, Functional Safety) |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| Data SRAM | 2 KB |
| EEPROM | 256 bytes |
| Maximum CPU Frequency | 32 MHz |
| Instruction Cycle | 125 ns @ 32 MHz |
| Operating Voltage (VDD) | 1.8 V to 5.5 V |
| I/O Pins | 18 |
| ADC | 10-bit, multiple channels |
| DAC | 5-bit |
| Comparators | 2 |
| PWM | 10-bit |
| CCP Modules | 2 |
| CLC | Yes (Configurable Logic Cell) |
| NCO | Yes (Numerically Controlled Oscillator) |
| CWG | Yes (Complementary Waveform Generator) |
| Peripheral Pin Select (PPS) | Yes |
| Communication | 2x SPI/I2C + 1x EUSART |
| Hộp | 20-pin SOIC (300 mil) |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Packaging | Tape & Reel |
| Trạng thái RoHS | Compliant |
| Cấp MSL | 1 |
Cấu hình chân PIC16F18346T-I/SO
| Chân 1 | RA3/MCLR — Digital I/O / Master Clear (reset) input |
| Chân 2 | RA4 — Digital I/O / Analog input |
| Chân 3 | RA5 — Digital I/O / Analog input |
| Chân 4 | RA0 — Digital I/O / ICSPDAT |
| Chân 5 | RA1 — Digital I/O / ICSPCLK |
| Chân 6 | RA2 — Digital I/O / Analog input |
| Chân 7 | VDD — Positive supply voltage |
| Chân 8 | VSS — Ground reference |
| Chân 9 | RA7 — Digital I/O / PPS-capable |
| Chân 10 | RA6 — Digital I/O / PPS-capable |
| Chân 11 | RC0 — Digital I/O / Analog input / PPS |
| Chân 12 | RC1 — Digital I/O / Analog input / PPS |
| Chân 13 | RC2 — Digital I/O / Analog input / PPS |
| Chân 14 | RC3 — Digital I/O / Analog input / PPS / SCL |
| Chân 15 | RC4 — Digital I/O / Analog input / PPS / SDA |
| Chân 16 | RC5 — Digital I/O / Analog input / PPS |
| Chân 17 | RC6 — Digital I/O / PPS / TX |
| Chân 18 | RC7 — Digital I/O / PPS / RX |
| Chân 19 | RB4 — Digital I/O / Analog input / PPS |
| Chân 20 | RB5 — Digital I/O / Analog input / PPS |
Ứng dụng tiêu biểu
PIC16F18346T-I/SO phù hợp cho 6 Áp dụngs: Low-Power IoT Sensor Node, Capacitive Touch Interface, LED Lighting Controller, Small Motor / Fan Controller, Battery-Powered Instrumentation, Automotive Body and Accessory Module.
Low-Power IoT Sensor Node
The PIC16F18346T-I/SO's 32MHz core, 28KB Flash, 2KB RAM, and XLP nanoWatt sleep modes make it well suited for battery-powered IoT sensor endpoints. Its 10-bit ADC reads environmental sensors while CLC, NCO, and CWG generate wake-up waveforms without CPU intervention. The 1.8-5.5V VDD range supports single-cell LiSO2 and 3.3V coin-cell chemistries with deep sleep currents below 1 uA.
Được đề xuất
Capacitive Touch Interface
With PPS-routable CTMU and CVD channels, the PIC16F18346T-I/SO supports multi-button capacitive touch and slider interfaces without external touch ICs. The 18 I/O pins and 32MHz instruction cycle enable sub-5ms scan rates for 10+ buttons with mTouch firmware libraries. The 28KB Flash accommodates Microchip's mTouch reference code plus application logic, while deep sleep preserves battery life when idle.
Được đề xuất
LED Lighting Controller
The PIC16F18346T-I/SO's CWG, 10-bit PWM, and NCO peripherals drive multi-channel LED strings with smooth dimming and color mixing. CLC combines PWM outputs for hardware-level color crossfades without CPU load. The 18 I/O and 2KB RAM handle DMX512 or DALI protocol stacks in firmware, and XLP sleep keeps standby power below 50 uA in always-on fixtures.
Được đề xuất
Small Motor / Fan Controller
The PIC16F18346T-I/SO's 10-bit PWM, CWG, and CCP modules deliver closed-loop BLDC, stepper, or DC-brushed motor control up to ~32 kHz switching frequency. The 10-bit ADC reads back-EMF or current sense for closed-loop regulation, while PPS allows flexible pin assignment for high-side/low-side FET drive signals. XLP features reduce idle current for battery-powered appliance designs.
Được đề xuất
Battery-Powered Instrumentation
With 1.8-5.5V VDD, 256B EEPROM for calibration storage, and 10-bit ADC plus 5-bit DAC, the PIC16F18346T-I/SO fits portable meters, handheld multimeters, and field instruments. The 32MHz CPU executes display refresh and signal-processing routines while XLP sleep extends battery life. PPS allows flexible PCB routing in cramped handheld enclosures.
Được đề xuất
Automotive Body and Accessory Module
The PIC16F18346T-I/SO's industrial -40C to +85C rating and functional safety (FuSa) features make it suitable for non-safety-critical automotive body modules (lighting, washers, accessory controllers). The 28KB Flash hosts CAN-capable firmware stacks when paired with an external MCP2515 CAN controller over SPI. PPS simplifies mixed-signal PCB layouts in space-constrained under-dash enclosures.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F18346T-I/SO — 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 | PIC16F18346-I/SO | PIC16F18346-E/SO | PIC16F18345-I/SO |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SOIC | 20-SOIC (same) | 20-SOIC (same) | 20-SOIC (same) |
| Program Flash | 28 KB | 28 KB | 28 KB | 14 KB |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Temperature Grade | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| Packaging Format | Tape & Reel | Tube | Tube / T&R | Tube |
| Unit Price @ qty 100 (USD) | 2.21 | ~2.18 | ~2.45 | ~1.95 |
Bảo phân biệt quan trọng
- Highest Flash memory in 20-pin PIC16F183xx family (vsPIC16F18345-I/SO)
- Tape & Reel packaging for high-volume SMT assembly (vsPIC16F18346-I/SO)
- Core-Independent Peripherals (CLC, NCO, CWG) for off-CPU waveform generation (vsPIC16F18326T-I/SO)
Ghi chú thiết kế
The PIC16F18346T-I/SO draws under 1 uA in deep sleep when configured for nanoWatt XLP modes. Decouple VDD with a 0.1 uF ceramic capacitor placed within 5 mm of the VDD pin, and add a bulk 1-10 uF capacitor near the regulator output. Do not exceed 5.5V absolute maximum VDD to avoid latch-up; use a TVS such as the SMBJ5.0A for automotive transient protection on VDD.
The 20-SOIC 300-mil body requires a minimum land pattern pad width of ~0.50 mm and length ~1.30 mm per IPC-7351 nominal standards. Place decoupling capacitors within 5 mm of VDD/VSS pins. Keep ICSP PGD/PGC traces short and parallel, with no series resistors unless specified in the Programming Specification; an isolated ICSP header is recommended for in-field firmware updates.
PPS-capable digital peripherals (CLC, NCO, CWG, PWM, CCP) can only be routed to PPS-capable pins (typically PORTC and select PORTB pins). Do not route CCP1 to RA0 - it will not function. Verify that your firmware's PPS unlock sequence (PPSLOCKED bit) is correctly cleared in OSCCON before peripheral initialization, otherwise digital peripherals will remain mapped to default pins.
Estimated: at 32MHz CPU and 5.0V VDD, the PIC16F18346T-I/SO core draws roughly 5-7 mA active, dissipating ~25-35 mW. The 20-SOIC theta_JA of approximately 80 C/W gives a junction temperature rise of 2-3 C above ambient, well within safe operating area. In deep sleep (<1 uA), power dissipation drops below 5 uW; no thermal management is required.
Thông tin tuân thủ
RoHS and lead-free compliance per Microchip product page (2026-09-20). Not AEC-Q100 qualified; for AEC-Q100 grade 0/1 automotive body applications, contact Microchip for automotive-grade PIC16F18346 variants.
