PIC16F18876-E/ML - 28KB Flash 8-Bit XLP MCU | Microchip
料号： PIC16F18876-E/ML ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $3.42 | $3.42 |
| 10 | $3.08 | $30.80 |
| 100 | $2.74 | $274.00 |
| 500 | $2.45 | $1,225.00 |
| 1,000 | $2.18 | $2,180.00 |
PIC16F18876-E/ML 概述
An 8-bit microcontroller (MCU) is a single-chip computer that executes instructions 8 bits wide at a time, typically used for embedded control where deterministic behavior, low power, and rich peripheral integration matter more than raw compute throughput. The PIC16F architecture sits in the broader MCU taxonomy as: 8-bit MCU -> RISC MCU -> microcontroller -> embedded processor -> semiconductor. Within Microchip's portfolio, PIC16F18876 belongs to the PIC16F188x family optimized for functional safety and mixed-signal applications, with on-chip 10-bit ADC, 5-bit/8-bit DAC, comparators, PWM, ZCD, and EUSART/SPI/I2C peripherals.
Key features include hardware Limit Timer (HLT), Windowed Watchdog Timer (WWDT), CRC/SCAN for memory integrity, Peripheral Pin Select (PPS) for flexible routing, and Idle/Doze/PMD power management modes. The part is supplied in a 44-pin QFN (also called HVQCCN) measuring 8x8 mm with an exposed thermal pad, suitable for space-constrained industrial and consumer designs requiring maximum GPIO count and a small PCB footprint.
Typical applications include IoT sensor nodes, home appliances, industrial control modules, automotive body and interior subsystems, and human-machine interface (HMI) controllers. PPS allows peripheral signals to be remapped to any pin after PCB layout, accelerating late-stage design changes and reducing board respins.
When designing the power rail, ensure decoupling: a 1uF plus 0.1uF ceramic pair placed within 2-3 mm of VDD pins is recommended for CIP noise-sensitive analog blocks. Use the MPLAB X IDE with the XC8 compiler for code development and the PICkit 5 or MPLAB SNAP debugger for in-circuit programming/debug.
This page synthesizes distributor pricing across 9 distributors, drop-in PIC16F1887x family alternates, and parametric comparison vs. competitor 8-bit MCUs - content not found in the bare manufacturer datasheet.
直接替换替代料： PIC16F18876-E/ML ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC16F18876-E/ML （相同外形与封装尺寸） ——差异在于 Package, ADC, Operating Temperature, Program Memory (Flash), Communication Peripherals.
快速对比工具——选择替代料号进行并排对比：
PIC16F18876-I/ML
✅ 直接替换✓ 有现货
$2.15 / 个
查看数据手册 →PIC16F18877-E/ML
✅ 直接替换📋 参考替代料（不在目录中）
PIC16F18875-E/ML
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC16F18855-E/ML
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$0.71 / 个
查看数据手册 →PIC16F18876-E/ML 最大额定值与电气特性
| Core Architecture | PIC16F Enhanced Mid-Range 8-bit RISC |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| SRAM | 2 KB |
| EEPROM | 256 bytes |
| Maximum CPU Speed | 32 MHz |
| Supply Voltage (VDD) | 2.3 V to 5.5 V |
| 工作温度 | -40C to +125C (Extended, "E" grade) |
| ADC | 10-bit, up to 14 channels (ADC2) |
| DAC | 5-bit and 8-bit |
| Comparators | Yes (integrated) |
| PWM Modules | Yes (with CWG, NCO) |
| Communication | EUSART, SPI, I2C (MSSP) |
| Zero-Cross Detect (ZCD) | Yes |
| Peripheral Pin Select (PPS) | Yes |
| Windowed Watchdog (WWDT) | Yes |
| Hardware Limit Timer (HLT) | Yes |
| CRC/SCAN | Yes |
| 封装 | 44-pin QFN (8x8 mm) with EP |
| 安装类型 | Surface Mount |
| MSL 等级 | 3 (168 hours) |
| Lead Free / RoHS | Compliant |
| XLP (eXtreme Low Power) | Yes (sub-uA sleep) |
PIC16F18876-E/ML 引脚配置
| 引脚 1 | RA7 — PORTA bit 7, ICSPDAT (PPS) |
| 引脚 2 | RA6 — PORTA bit 6, ICSPCLK (PPS) |
| 引脚 3 | RC6 — PORTC bit 6, EUSART TX/PPS |
| 引脚 4 | RC7 — PORTC bit 7, EUSART RX/PPS |
| 引脚 5 | RB7 — PORTB bit 7, ICSPDAT (alternate) |
| 引脚 6 | RB6 — PORTB bit 6, ICSPCLK (alternate) |
| 引脚 7 | RB5 — PORTB bit 5, CWG input/pps |
| 引脚 8 | RB4 — PORTB bit 4, CWG/smt input |
| 引脚 9 | RB3 — PORTB bit 3, I2C SCL (PPS) |
| 引脚 10 | RB2 — PORTB bit 2, I2C SDA (PPS) |
| 引脚 11 | RB1 — PORTB bit 1, PWM/PPS |
| 引脚 12 | RB0 — PORTB bit 0, PWM/PPS |
| 引脚 13 | VDD — Supply voltage |
| 引脚 14 | VSS — Ground |
| 引脚 15 | RC2 — PORTC bit 2, PWM (PPS) |
| 引脚 16 | RC3 — PORTC bit 3, SPI SCK (PPS) |
| 引脚 17 | RC4 — PORTC bit 4, SPI SDI (PPS) |
| 引脚 18 | RC5 — PORTC bit 5, SPI SDO (PPS) |
| 引脚 19 | RA0 — PORTA bit 0, ADC channel 0/PPS |
| 引脚 20 | RA1 — PORTA bit 1, ADC channel 1/PPS |
| 引脚 21 | RA2 — PORTA bit 2, ADC channel 2/PPS |
| 引脚 22 | RA3 — PORTA bit 3, ADC channel 3/PPS |
| 引脚 23 | RA4 — PORTA bit 4, ADC channel 4/PPS |
| 引脚 24 | RA5 — PORTA bit 5, ADC channel 5/PPS |
| 引脚 25 | RD0 — PORTD bit 0, PPS |
| 引脚 26 | RD1 — PORTD bit 1, PPS |
| 引脚 27 | RD2 — PORTD bit 2, PPS |
| 引脚 28 | RD3 — PORTD bit 3, PPS |
| 引脚 29 | RD4 — PORTD bit 4, PPS |
| 引脚 30 | RD5 — PORTD bit 5, PPS |
| 引脚 31 | RD6 — PORTD bit 6, PPS |
| 引脚 32 | RD7 — PORTD bit 7, PPS |
| 引脚 33 | RE3 — PORTE bit 3, MCLR/VPP |
| 引脚 34 | RE2 — PORTE bit 2, PPS |
| 引脚 35 | RE1 — PORTE bit 1, PPS |
| 引脚 36 | RE0 — PORTE bit 0, PPS |
| 引脚 37 | RC0 — PORTC bit 0, PPS |
| 引脚 38 | RC1 — PORTC bit 1, PPS |
| 引脚 39 | RF2 — PORTF bit 2, PPS |
| 引脚 40 | RF3 — PORTF bit 3, PPS |
| 引脚 41 | RF4 — PORTF bit 4, PPS |
| 引脚 42 | RF5 — PORTF bit 5, PPS |
| 引脚 43 | RF6 — PORTF bit 6, PPS |
| 引脚 44 | RF7 — PORTF bit 7, PPS |
典型应用
PIC16F18876-E/ML 适用于 6 应用s: IoT Wireless Sensor Node, Industrial Control Module, Automotive Body Electronics, Smart Home Appliance Control, HMI / User Interface Controller, Medical Monitoring Device.
IoT Wireless Sensor Node
The PIC16F18876-E/ML's XLP technology with sub-microamp sleep current and 32 MIPS throughput make it an ideal host MCU for battery-powered IoT sensor nodes. With 28 KB of Flash and 2 KB of SRAM, it can run a small communication stack (e.g., a proprietary RF protocol over the EUSART or SPI) alongside sensor acquisition via the 10-bit ADC, while sleep currents below 1 uA extend battery life to multi-year timescales on a single coin cell. PPS allows the SPI bus to be remapped to the best PCB pins without rerouting the host MCU.
推荐
Industrial Control Module
The PIC16F18876-E/ML supports industrial control applications through its 10-bit ADC with up to 14 channels, hardware comparators, configurable logic cells (CLC), and 32 MHz CPU with deterministic interrupt latency. The 2.3V to 5.5V supply range tolerates 24V-derived rails with adequate regulation, and the Windowed Watchdog (WWDT) plus CRC/SCAN provide IEC 61508-grade functional safety hooks. PPS enables fast PCB iteration when peripheral pins must move to meet signal integrity constraints.
推荐
Automotive Body Electronics
For automotive body and interior applications, the PIC16F18876-E/ML's extended -40C to +125C temperature range, 32 MIPS throughput, and on-chip peripherals (CWG for motor/solenoid drive, ZCD for AC line detection, EUSART for LIN/J2602) cover requirements for window lift, mirror adjust, and lighting controllers. Microchip provides AEC-Q100 qualified versions of PIC16F18876 via specific ordering suffixes (consult Microchip for current VAO part numbers). PPS helps resolve late-stage pin assignments to meet EMC and signal-integrity design rules.
推荐
Smart Home Appliance Control
The PIC16F18876-E/ML provides the right balance of peripherals and code space for home appliances such as coffee makers, washing machines, and HVAC thermostats. The on-chip 10-bit ADC measures NTC thermistors and pressure sensors, the PWM modules drive TRIAC-compatible gating via the CWG, and the 32 MHz core runs simple UI state machines with display driving over SPI. NanoWatt XLP modes reduce standby consumption below Energy Star thresholds, while the small 44-pin QFN keeps PCB area minimal in space-constrained appliances.
推荐
HMI / User Interface Controller
The PIC16F18876-E/ML handles capacitive touch keypad scanning, LED matrix driving via the CWG, and SPI-driven LCDs or OLEDs. The 2 KB SRAM allows small graphical framebuffers for menu animations, while 28 KB Flash stores multiple language packs and firmware update bootloaders. EUSART supports RS-485 half-duplex industrial networking, and ZCD detects AC line zero crossings for synchronous dimming applications. PPS makes it easy to reassign peripheral pins when a touchscreen and LCD must share the same control board.
推荐
Medical Monitoring Device
The PIC16F18876-E/ML is suitable for medical monitoring devices such as portable pulse oximeters, glucometers, and digital thermometers where its XLP sleep current extends battery life between measurements. The 10-bit ADC with input scaling handles analog sensor conditioning, while the CRC/SCAN block provides memory integrity checks for IEC 62304 risk-class compliance. Hardware Limit Timer (HLT) and Windowed Watchdog ensure software execution bounds for patient-connected applications, and 44-pin QFN keeps the assembled module compact enough for handheld form factors.
推荐
推荐产品汇总
工程参考数据： PIC16F18876-E/ML ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC16F18876-I/ML | PIC16F18877-E/ML | PIC16F18875-E/ML | PIC16F18855-E/ML |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (8x8 mm) | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same | 44-QFN (8x8 mm) - same |
| Flash Program Memory | 28 KB | 28 KB | 56 KB | 28 KB | 14 KB |
| SRAM | 2 KB | 2 KB | 2 KB | 2 KB | 1 KB |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Max CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 2.3V - 5.5V | 2.3V - 5.5V | 2.3V - 5.5V | 2.3V - 5.5V | 2.3V - 5.5V |
| Operating Temperature | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +125C (Extended) |
| ADC | 10-bit, 14 channels | 10-bit, 14 channels | 10-bit, 14 channels | 10-bit, 14 channels | 10-bit, 14 channels |
关键差异点
- Highest Memory Density in 44-pin QFN with XLP （对比 PIC16F18855-E/ML)
- Memory-Headroom Migration Path in Same Package （对比 PIC16F18877-E/ML)
- Core Independent Peripherals (CIP) Reduce CPU Load （对比 PIC16F877A-I/P)
设计说明
Place a 1uF X7R ceramic plus a 0.1uF ceramic decoupling pair within 2-3 mm of each VDD pin pair (multiple VDD pins exist on the 44-pin QFN, all must be bypassed). For XLP sleep-mode designs, add a 10uF bulk capacitor at the regulator output - the PIC16F18876-E/ML's nanoWatt modes can draw microamp-level current and supply charge must come from local capacitance during ADC/HFINTOSC active bursts.
Estimated: at 32 MHz full active MIPS with all peripherals enabled, the PIC16F18876-E/ML draws ~ 4 mA active current at 5V, giving 20 mW dissipation. With a 44-pin QFN theta_JA of approximately 28 C/W on a 1 oz 4-layer PCB, this raises junction temperature by only 0.6C above ambient - well within the 125C limit. The exposed thermal pad MUST be soldered to a copper pour of at least 50 mm^2 to achieve this thermal resistance.
The exposed thermal pad on the 44-pin QFN must be soldered to a copper pour for both thermal and electrical (ground) performance. Via-stitch the thermal pad to an internal ground plane with 0.3 mm plated through-hole array on a 1 mm grid - this also reduces ground bounce during PWM transitions and ADC sampling. Keep analog signal traces (ADC inputs, comparator inputs) separated from high-frequency PWM traces and digital switching lines by a guard trace tied to analog ground.
Do not leave unused input pins floating; tie to VDD or VSS via software-configurable weak pull-ups (WPU) directly via PPS-aware CONFIG bits, or with external 100k resistors. Floating pins can cause spurious interrupts and excess current draw. When migrating from PIC16F876A/PIC16F886 designs, note that PIC16F18876-E/ML requires the MPLAB X IDE with XC8 v2.0 or later - older compilers do not recognize the CIP peripherals.
合规信息
RoHS compliant per Microchip product page. Standard PIC16F18876-E/ML is not AEC-Q100 qualified; contact Microchip for AEC-Q100 automotive (VAO suffix) variants. Halogen-free status not explicitly confirmed in verified data.
