PIC16F18876-I/PT - 32MHz 8-Bit MCU, 28KB Flash, 44-TQFP | Microchip
部品番号: PIC16F18876-I/PT ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $2.43 | $2.43 |
| 10 | $2.19 | $21.90 |
| 100 | $1.95 | $195.00 |
| 500 | $1.71 | $855.00 |
| 1,000 | $1.48 | $1,480.00 |
PIC16F18876-I/PT 概要
What is a PIC16F18876-I/PT? An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data-path CPU, on-chip Flash for program storage, RAM for data, EEPROM for non-volatile data, and a rich mix of peripherals such as timers, ADC, communication interfaces, and CIPs. Within the broader semiconductor taxonomy, the PIC16F18876-I/PT sits at: microcontroller -> 8-bit MCU -> PIC16 family -> PIC16F1885X/7X sub-family -> enhanced mid-range core with CIPs. PIC MCUs use a Harvard RISC architecture (separate program and data buses) optimized for deterministic, low-power control.
Key features include 2 KB RAM, 256 Bytes EEPROM, a 10-bit ADC with up to 35 channels, two 10-bit DACs, four 8-bit timers plus three 16-bit timers, two comparators, two UART/USART modules, two SPI/I2C peripherals, a 32 MHz internal oscillator, and the Peripheral Pin Select (PPS) routing system. The CRC/SCAN hardware block, Hardware Limit Timer (HLT), and Windowed Watchdog Timer (WWDT) provide on-chip diagnostics for Functional Safety applications such as IEC 60730 Class B compliance. The CIPs (CLC, NCO, DSM, SMT, PWM) enable custom signal generation without CPU intervention, dramatically reducing code complexity and power.
Typical applications include home appliance control panels, IoT sensor nodes, battery-powered measurement instruments, automotive body and lighting controllers, white goods, and industrial sensor interfaces. The XLP nanoWatt XLP sleep modes (down to sub-uA currents) extend battery life in always-on edge devices. The wide operating voltage range (typically 1.8V to 5.5V) and rich analog peripherals make it ideal for sensor-conditioning front-ends with on-chip amplification and ADC conversion.
When designing with this device, reserve enough Flash for a Fail-Safe Bootloader and place decoupling capacitors within 5 mm of every VDD/VSS pin pair on the 44-TQFP. Use the Peripheral Pin Select feature to map peripherals to alternate pins, but verify pin assignments against the package pinout because I/O multiplexing is non-trivial. The MPLAB X IDE plus XC8 compiler is the canonical toolchain. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: PIC16F18876-I/PT — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: PIC16F18876-I/PT （同一形状・フットプリント） — 相違点: ADC, Package, DAC, Operating Temperature, Communication.
クイック比較ツール — 並列比較する代替部品を選択:
PIC16F18877-I/PT
✅ ドロップイン✓ 在庫あり
$2.18 / 個
データシートを見る →PIC16F18875-I/PT
✅ ドロップイン✓ 在庫あり
$1.22 / 個
データシートを見る →PIC16F18876-E/PT
✅ ドロップイン✓ 在庫あり
$1.64 / 個
データシートを見る →PIC16F18876-I/ML
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$2.15 / 個
データシートを見る →PIC16F18876-E/P
✅ ドロップイン✓ 在庫あり
$2.04 / 個
データシートを見る →PIC16F18856-I/PT
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
PIC16F15376-I/PT
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$1.55 / 個
データシートを見る →PIC18F46K42-I/PT
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$1.89 / 個
データシートを見る →PIC16F18876-I/PT 最大定格＆電気的特性
| Family | PIC16F1885X/7X (PIC16F18876-I/PT) |
| Core | PIC 8-bit enhanced mid-range |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| Data SRAM | 2 KB |
| EEPROM | 256 Bytes |
| Maximum CPU Speed | 32 MHz |
| Operating Voltage (VDD) | 1.8 V to 5.5 V |
| ADC | 10-bit, up to 35 channels |
| DAC | 2x 10-bit |
| Timers | 4x 8-bit, 3x 16-bit |
| Comparators | 2 |
| UART/USART | 2 |
| SPI | 2 |
| I2C | 2 |
| パッケージ | 44-pin TQFP (10x10 mm) |
| 動作温度 | -40C to +85C (Industrial) |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
| Functional Safety (FuSa) | Yes (IEC 60730 Class B support) |
| XLP nanoWatt | Yes (eXtreme Low Power modes) |
| Core Independent Peripherals (CIPs) | CLC, NCO, DSM, SMT, PWM |
PIC16F18876-I/PT ピン構成
| ピン 1 | RA0 — I/O port A bit 0 / analog input |
| ピン 2 | RA1 — I/O port A bit 1 / analog input |
| ピン 3 | RA2 — I/O port A bit 2 / analog input |
| ピン 4 | RA3 — I/O port A bit 3 / analog input / Vref+ |
| ピン 5 | RA4 — I/O port A bit 4 / analog input |
| ピン 6 | RA5 — I/O port A bit 5 / analog input |
| ピン 7 | RA6 — I/O port A bit 6 / oscillator |
| ピン 8 | RA7 — I/O port A bit 7 / oscillator |
| ピン 9 | VSS — Ground reference |
| ピン 10 | VDD — Positive supply voltage (1.8-5.5V) |
| ピン 11 | RB0 — I/O port B bit 0 / analog input / IOC |
| ピン 12 | RB1 — I/O port B bit 1 / analog input / IOC |
| ピン 13 | RB2 — I/O port B bit 2 / analog input / IOC |
| ピン 14 | RB3 — I/O port B bit 3 / analog input / IOC |
| ピン 15 | RB4 — I/O port B bit 4 / IOC |
| ピン 16 | RB5 — I/O port B bit 5 / IOC |
| ピン 17 | RB6 — I/O port B bit 6 / ICSPCLK / IOC |
| ピン 18 | RB7 — I/O port B bit 7 / ICSPDAT / IOC |
| ピン 19 | VSS — Ground reference |
| ピン 20 | VDD — Positive supply voltage (1.8-5.5V) |
| ピン 21 | RC0 — I/O port C bit 0 |
| ピン 22 | RC1 — I/O port C bit 1 |
| ピン 23 | RC2 — I/O port C bit 2 |
| ピン 24 | RC3 — I/O port C bit 3 / SCL |
| ピン 25 | RC4 — I/O port C bit 4 / SDA |
| ピン 26 | RC5 — I/O port C bit 5 |
| ピン 27 | RC6 — I/O port C bit 6 / TX |
| ピン 28 | RC7 — I/O port C bit 7 / RX |
| ピン 29 | VSS — Ground reference |
| ピン 30 | VDD — Positive supply voltage (1.8-5.5V) |
| ピン 31 | RD0 — I/O port D bit 0 |
| ピン 32 | RD1 — I/O port D bit 1 |
| ピン 33 | RD2 — I/O port D bit 2 |
| ピン 34 | RD3 — I/O port D bit 3 |
| ピン 35 | RD4 — I/O port D bit 4 |
| ピン 36 | RD5 — I/O port D bit 5 |
| ピン 37 | RD6 — I/O port D bit 6 |
| ピン 38 | RD7 — I/O port D bit 7 |
| ピン 39 | VSS — Ground reference |
| ピン 40 | VDD — Positive supply voltage (1.8-5.5V) |
| ピン 41 | RE0 — I/O port E bit 0 / analog input |
| ピン 42 | RE1 — I/O port E bit 1 / analog input |
| ピン 43 | RE2 — I/O port E bit 2 / analog input |
| ピン 44 | RE3 — I/O port E bit 3 / MCLR/Vpp |
主な用途
PIC16F18876-I/PT の用途: 8 件s: Home Appliance Control Panels, Battery-Powered IoT Sensor Nodes, Industrial Sensor Interfaces, Automotive Body and Lighting Controllers, White Goods and Kitchen Appliances, Test & Measurement Handheld Instruments, Building Automation and HVAC Controls, Consumer Electronics with Touch and Display.
Home Appliance Control Panels
The PIC16F18876-I/PT is a strong fit for washing machine, dishwasher, and microwave control panels because its Functional Safety (FuSa) features - CRC/SCAN, Windowed Watchdog Timer, and Hardware Limit Timer - directly support IEC 60730 Class B certification. The 28 KB Flash fits a real-time control loop plus safety routines, while the 35-channel 10-bit ADC reads multiple temperature and water-level sensors without external multiplexers. With its 44-TQFP package it can be placed on the same PCB layout as the PIC16F18877 (56 KB) or PIC16F18875 (14 KB) for memory scaling without re-spinning the board. Estimated BOM savings of $0.30-0.50/unit vs larger Cortex-M0+ parts make it cost-effective for high-volume appliances.
おすすめ
Battery-Powered IoT Sensor Nodes
The PIC16F18876-I/PT suits battery-powered wireless sensor nodes because XLP nanoWatt sleep modes drop current consumption to sub-uA while retaining RAM and the Real-Time Clock. Its 32 MHz CPU wakes within microseconds, processes sensor data from the 10-bit ADC (up to 35 channels), and transmits via the integrated UART or SPI before returning to sleep. The 1.8 V to 5.5 V operating range supports both single-cell Li-ion (2.0-3.6 V) and 5 V industrial bus architectures. With 28 KB Flash it can host a LoRaWAN or Sub-GHz protocol stack from Microchip's wireless library. The 44-TQFP also simplifies prototype-to-production transitions on the same footprint.
おすすめ
Industrial Sensor Interfaces
Industrial 4-20 mA loop-powered sensor transmitters benefit from the PIC16F18876-I/PT's wide 1.8 V to 5.5 V operating range, 5.5 V-tolerant I/O, and 35-channel 10-bit ADC for multi-input conditioning. The two 10-bit DACs can drive 4-20 mA loops directly through external op-amps, while the integrated comparators enable fast fault-detection without CPU overhead. Core Independent Peripherals (CIPs) like the CLC (Configurable Logic Cell) implement hardware-only signal conditioning that runs even in sleep mode, dramatically reducing wake cycles. According to the manufacturer datasheet, the 44-TQFP package supports industrial -40C to +85C operation across factory automation environments.
おすすめ
Automotive Body and Lighting Controllers
The PIC16F18876-I/PT serves well in non-safety-critical automotive body controllers such as interior lighting, seat controllers, and HVAC blend doors where its 16-bit PWM peripherals generate smooth LED dimming curves. The CLC (Configurable Logic Cell) and NCO (Numerically Controlled Oscillator) generate custom waveforms for RGB color mixing without CPU intervention, freeing the core for CAN or LIN stack processing. Operating from 1.8 V to 5.5 V accommodates 12 V battery transients when paired with external regulators. For under-hood applications above 85C, use the PIC16F18876-E/PT (extended temperature) in the same 44-TQFP footprint. Designers must add CAN/LIN transceivers externally since this MCU does not include them on-chip.
おすすめ
White Goods and Kitchen Appliances
Refrigerator control boards, coffee machine controllers, and oven user-interface boards use the PIC16F18876-I/PT to drive capacitive touch buttons, multiple LEDs, and segment LCDs simultaneously. The 35-channel ADC reads NTC thermistors for temperature regulation, the two UART modules handle barcode-scanner or Wi-Fi module interfaces, and the PWM peripherals control motor speed for blender or mixer applications. With 28 KB Flash and 2 KB RAM it can host a small RTOS plus graphical UI library. The 44-TQFP provides enough I/O for direct connection to 7-segment displays and keypads without external I/O expanders.
おすすめ
Test & Measurement Handheld Instruments
Handheld digital multimeters, insulation testers, and process calibrators leverage the PIC16F18876-I/PT's low XLP sleep current, fast wake-up, and on-chip 10-bit DAC for analog signal generation. The 32 MHz CPU executes RMS calculations and display-update routines within tight timing budgets while the CLC and SMT (Signal Measurement Timer) capture frequency and pulse-width inputs without CPU load. Two UART modules enable Bluetooth or USB-CDC connectivity to companion radios, and the integrated EEPROM stores calibration constants without external memory. The 44-TQFP supports both battery-powered portable designs and benchtop instruments with the same footprint.
おすすめ
Building Automation and HVAC Controls
The PIC16F18876-I/PT integrates well into HVAC control boards, smart thermostats, and building automation sensor hubs because its 35-channel ADC reads multiple temperature, humidity, and airflow sensors simultaneously. The 5.5 V-tolerant I/O accepts industrial 24 V bus signals via external resistor dividers, while the on-board UART/SPI/I2C peripherals connect to wireless modules (Wi-Fi, Sub-GHz, LoRa) for cloud connectivity. Core Independent Peripherals (CIPs) handle PID control loops in hardware, reducing firmware complexity. The 28 KB Flash is sufficient for BACnet or Modbus protocol stacks on small-to-medium building automation devices.
おすすめ
Consumer Electronics with Touch and Display
Consumer remote controls, e-bike displays, and small kitchen appliances use the PIC16F18876-I/PT for its PWM-driven LED dimming, segment-LCD drive capability, and Capacitive Voltage Divider (CVD) touch sensing peripherals. The 32 MHz CPU updates segment LCDs at low duty cycle to minimize current consumption, while the CLC and NCO generate custom waveforms for vibration-motor haptics. With 28 KB Flash, designers can implement a small RTOS plus custom UI library, and the 44-TQFP provides enough I/O for direct connection to displays without external I/O expanders.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: PIC16F18876-I/PT — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | PIC16F18877-I/PT | PIC16F18875-I/PT | PIC16F18876-E/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-TQFP (10x10 mm) | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same | 44-TQFP (10x10 mm) - same |
| Flash Memory | 28 KB | 56 KB (+100%) | 14 KB (-50%) | 28 KB (same) |
| SRAM | 2 KB | 2 KB (same) | 2 KB (same) | 2 KB (same) |
| EEPROM | 256 Bytes | 256 Bytes (same) | 256 Bytes (same) | 256 Bytes (same) |
| Max CPU Speed | 32 MHz | 32 MHz (same) | 32 MHz (same) | 32 MHz (same) |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V (same) | 1.8 V to 5.5 V (same) | 1.8 V to 5.5 V (same) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) |
| Functional Safety (FuSa) | Yes (IEC 60730 Class B) | Yes (IEC 60730 Class B) | Yes (IEC 60730 Class B) | Yes (IEC 60730 Class B) |
| Unit Price (qty 1) | ~$2.43 | ~$2.85 (higher) | ~$2.15 (lower) | ~$2.55 (extended temp premium) |
主な差別化要因
- Functional Safety (FuSa) with IEC 60730 Class B support （vs PIC16F18875-I/PT (14 KB Flash variant))
- 28 KB Flash matches typical firmware complexity （vs PIC16F18877-I/PT (56 KB Flash variant))
- Extended temperature variant available in same footprint （vs PIC16F18876-E/PT)
- CIPs reduce CPU load and power consumption （vs PIC16F15376-I/PT (different family))
設計ノート
Estimated: PIC16F18876-I/PT XLP sleep currents are sub-uA when properly configured. Place a 100 nF decoupling capacitor within 5 mm of each VDD/VSS pair (the 44-TQFP has 4 pairs). Add a bulk 10 uF tantalum or ceramic capacitor near the VDD pin to handle current spikes during ADC conversion bursts. Configure the BOR (Brown-Out Reset) to the lowest threshold above your minimum operating voltage to maximize useful battery range. For battery applications drawing <100 uA average, use sleep mode aggressively between sensor reads.
The 44-TQFP (10x10 mm, 0.8 mm pitch) requires careful PCB layout: use 0.25 mm wide traces with 0.4 mm pad spacing, and place vias inside the pads for thermal relief. The exposed thermal pad (if present) must be soldered to a copper pour to meet datasheet thermal specifications. Reserve an unconnected 4-pin header footprint for the MPLAB ICD 4 / Snap in-circuit debugger (ICSP) connection - use RB6/ICSPCLK and RB7/ICSPDAT plus MCLR/Vpp. Route the analog AVdd/AVss traces separately from digital VDD/VSS to avoid digital noise coupling into ADC readings.
Critical: PIC16F18876-I/PT I/O are NOT 5V-tolerant when VDD < 4.5V; using pull-ups to 5V on signals connected to a 3.3V-powered MCU can damage the input diodes. Always check VDD and pull-up rail compatibility. Do not connect an ICSP programmer while the application circuit drives the MCLR line - this can cause programming failures or back-powering. Always configure unused pins as outputs (not inputs) to minimize current consumption in sleep mode, and disable unused peripherals via PMD (Peripheral Module Disable) registers.
The 10-bit ADC can achieve 100 ksps throughput, but accuracy depends on source impedance: keep analog source impedance below 1 kohm to avoid acquisition-time errors. Use the on-chip FVR (Fixed Voltage Reference) for ratiometric measurements instead of VDD as ADC reference when VDD may fluctuate. For SPI communications above 4 MHz, add 33 ohm series resistors near the MCU pins to dampen ringing; for I2C, use 4.7 kohm pull-ups on standard-mode 100 kHz and 2.2 kohm on fast-mode 400 kHz.
When using the Peripheral Pin Select (PPS) feature, map all peripheral pins early in your firmware - changing PPS assignments after a peripheral is enabled can cause glitches. The PPS feature is mapped via the PPSLOCK register which must be unlocked with a specific sequence before changes. For CAN or LIN applications not natively supported, route UART TX/RX through PPS to pins adjacent to the external transceiver to minimize trace length. Keep oscillator traces (RA6/RA7 for crystal) short and surrounded by ground guard rings.
コンプライアンス情報
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified for automotive safety; PIC16F18876-E/PT is the extended-temperature variant but still not AEC-Q100 qualified - for AEC-Q100 applications, use PIC16F18876T-I/PTVAO (automotive grade).