PIC16LF18876-E/ML - 8-bit XLP MCU 28KB Flash 32MHz | Microchip
MPN： PIC16LF18876-E/ML ✓ 啟用中PIC16LF18876-E/ML 概覽
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (Flash, RAM, EEPROM), and programmable peripherals on a single die. The PIC16LF18876 belongs to Microchip's enhanced mid-range 8-bit core family, occupying the tier above baseline PIC10/12/16 and below the 16-bit dsPIC/PIC24 families. Its XLP (eXtreme Low Power) designation indicates that the device was designed with sleep currents, wake-up sources, and active-mode efficiency as primary specifications rather than afterthoughts. Within the broader PIC taxonomy, the 16F prefix denotes a Flash-based, general-purpose 8-bit part with 14-bit instruction word.
Key features include 2KB RAM, 256B EEPROM, 36 configurable I/O, an integrated 10-bit ADC, 5-/8-bit DAC, comparators, PWM, CWG, SMT, HLT, WWDT, SCAN/CRC, ZCD, PPS, EUSART, and 2xSPI/I2C peripherals. The LF prefix denotes an extended low-voltage operating range down to 1.8V, while the standard F variants operate from 2.3V to 5.5V. Multiple low-power modes (Idle, Doze, Sleep) support battery-friendly applications.
The device uses Microchip's Core Independent Peripherals (CIPs) — CWG, SMT, and SCAN/CRC — that execute without CPU intervention, freeing the core for power management and reducing average current consumption. The Peripheral Pin Select (PPS) remapping block allows flexible routing of digital peripherals to any I/O, simplifying PCB layout when the 44-QFN footprint is shared across variant designs.
Typical applications include IoT sensor nodes, low-power wireless sensor hubs, battery-powered industrial instrumentation, home automation controllers, and capacitive-touch user interfaces. The combination of 28KB Flash, 2KB RAM, and rich analog/digital peripherals suits it for protocol translation, sensor aggregation, and simple closed-loop control tasks.
When designing with this part, take advantage of the PPS module to route signals without board rework, and use the SCAN/CRC peripheral to validate Flash integrity in safety-sensitive applications. For deeper power reduction, leverage the XLP Sleep mode with peripheral wake-up rather than polling in the main loop.
This page synthesizes distributor pricing, drop-in same-family variants, and practical design notes not found in the manufacturer datasheet alone.
直接替換替代品，適用於 PIC16LF18876-E/ML — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16LF18876-E/ML （相同外形與佔位） — 差異在於 ADC, Package, DAC, Operating Temperature, Program Memory (Flash).
PIC16LF18877-E/ML
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16LF18875-E/ML
✅ 直接替換聯絡詢價
查看資料表 →PIC16F18876-E/ML
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF18876-I/ML
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF18876-E/MV
✅ 直接替換聯絡詢價
查看資料表 →PIC16LF18876-E/ML 最大額定值與電氣特性
| Core | PIC 8-bit enhanced mid-range |
| Instruction Set | 14-bit |
| CPU Speed | 32 MHz |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| RAM | 2 KB |
| EEPROM | 256 B |
| Operating Voltage Range | 1.8 V to 3.6 V (LF) |
| I/O Pins | 36 |
| ADC | 10-bit |
| DAC | 5/8-bit |
| 封裝 | 44-QFN (8x8) with exposed pad |
| 安裝類型 | Surface Mount |
| 工作溫度 | -40C to +125C |
| Communication Peripherals | EUSART, 2xSPI/I2C |
| Core Independent Peripherals | CWG, SMT, SCAN/CRC, ZCD, PPS, HLT, WWDT, PWM |
| RoHS 狀態 | Compliant |
PIC16LF18876-E/ML 腳位配置
| 腳位 1 | RA0 — Bidirectional I/O / analog input |
| 腳位 2 | RA1 — Bidirectional I/O / analog input |
| 腳位 3 | RA2 — Bidirectional I/O / analog input |
| 腳位 4 | RA3 — Bidirectional I/O / analog input |
| 腳位 5 | RA4 — Bidirectional I/O / analog input |
| 腳位 6 | RA5 — Bidirectional I/O / analog input |
| 腳位 7 | RA6 — Bidirectional I/O / analog input |
| 腳位 8 | RA7 — Bidirectional I/O / analog input |
| 腳位 9 | VSS — Ground reference |
| 腳位 10 | RA8 — Bidirectional I/O / analog input |
| 腳位 11 | RA9 — Bidirectional I/O / analog input |
| 腳位 12 | RA10 — Bidirectional I/O / analog input |
| 腳位 13 | RA11 — Bidirectional I/O / analog input |
| 腳位 14 | RA12 — Bidirectional I/O / analog input |
| 腳位 15 | RA13 — Bidirectional I/O / analog input |
| 腳位 16 | RA14 — Bidirectional I/O / analog input |
| 腳位 17 | RA15 — Bidirectional I/O / analog input |
| 腳位 18 | VSS — Ground reference |
| 腳位 19 | VDD — Positive supply (1.8V-3.6V LF) |
| 腳位 20 | RB0 — Bidirectional I/O / PPS peripheral |
| 腳位 21 | RB1 — Bidirectional I/O / PPS peripheral |
| 腳位 22 | RB2 — Bidirectional I/O / PPS peripheral |
| 腳位 23 | RB3 — Bidirectional I/O / PPS peripheral |
| 腳位 24 | RB4 — Bidirectional I/O / PPS peripheral |
| 腳位 25 | RB5 — Bidirectional I/O / PPS peripheral |
| 腳位 26 | RB6 — Bidirectional I/O / ICSPCLK |
| 腳位 27 | RB7 — Bidirectional I/O / ICSPDAT |
| 腳位 28 | VSS — Ground reference |
| 腳位 29 | VDD — Positive supply (1.8V-3.6V LF) |
| 腳位 30 | RC0 — Bidirectional I/O / PPS peripheral |
| 腳位 31 | RC1 — Bidirectional I/O / PPS peripheral |
| 腳位 32 | RC2 — Bidirectional I/O / PPS peripheral |
| 腳位 33 | RC3 — Bidirectional I/O / PPS peripheral |
| 腳位 34 | RC4 — Bidirectional I/O / PPS peripheral |
| 腳位 35 | RC5 — Bidirectional I/O / PPS peripheral |
| 腳位 36 | RC6 — Bidirectional I/O / PPS peripheral |
| 腳位 37 | RC7 — Bidirectional I/O / PPS peripheral |
| 腳位 38 | RE0 — Bidirectional I/O / analog input |
| 腳位 39 | RE1 — Bidirectional I/O / analog input |
| 腳位 40 | RE2 — Bidirectional I/O / analog input |
| 腳位 41 | RE3 — Bidirectional I/O / analog input |
| 腳位 42 | VSS — Ground reference |
| 腳位 43 | VDD — Positive supply (1.8V-3.6V LF) |
| 腳位 44 | RD0 — Bidirectional I/O / PPS peripheral |
| 腳位 EP | EP — Exposed thermal pad - connect to VSS for thermal dissipation |
典型應用
PIC16LF18876-E/ML 適用於 6 應用s: IoT Sensor Nodes, Home Automation Controllers, Battery-Powered Industrial Instrumentation, Capacitive Touch User Interfaces, Automotive Body Electronics, Wearable Health and Fitness Devices.
IoT Sensor Nodes
The PIC16LF18876-E/ML is well-suited for battery-powered IoT sensor nodes requiring multi-year battery life and sensor fusion. Its XLP Sleep current under 1 uA (typical) combined with Peripheral Pin Select (PPS) flexibility and 36 I/O allows direct connection of multiple analog/digital sensors (temperature, humidity, light, motion). The 28KB Flash accommodates protocol stacks such as LoRaWAN or BLE peripherals bridging, and the integrated 10-bit ADC provides front-end signal conditioning for low-frequency sensor outputs.
推薦
Home Automation Controllers
Home automation hubs and lighting/window-shade controllers benefit from the PIC16LF18876-E/ML's combination of 2KB RAM for protocol buffers, 36 I/O for multiple keypad/relay interfaces, and Core Independent Peripherals (CWG, SMT) that offload PWM and timing tasks from the core. Operating from 1.8V-3.6V, it can run directly from a small Li-ion cell with on-board boost, and the EUSART + 2xSPI/I2C peripherals expose multiple bus interfaces for display, RF module, and sensor integration.
推薦
Battery-Powered Industrial Instrumentation
Industrial handheld instruments such as digital multimeters, calibrators, and process-meter displays take advantage of the PIC16LF18876-E/ML's low-power modes and rich analog peripherals. The 10-bit ADC with dedicated input channels can directly digitize 4-20 mA loop signals via shunt resistors, while the 5/8-bit DAC can generate excitation voltages for bridge sensors. The -40C to +125C extended operating temperature (E suffix) suits factory-floor and outdoor enclosures. SCAN/CRC validates firmware integrity at boot.
推薦
Capacitive Touch User Interfaces
The PIC16LF18876-E/ML supports capacitive-touch implementations using its Core Independent Peripherals — particularly the CWG (Complementary Waveform Generator) and SMT (Signal Measurement Timer) — together with the integrated comparators for mTouch sensing. The 44-QFN 8x8 mm footprint exposes 36 I/O, enough for 12-16 touch keys plus LED drivers and an I2C-connected display. Microchip's mTouch library simplifies firmware development, and the XLP Sleep mode supports wake-on-touch behavior for battery-powered remote controls.
推薦
Automotive Body Electronics
The PIC16LF18876's wide operating voltage range (1.8V-3.6V LF) and -40C to +125C temperature range suit non-safety automotive body-electronics subsystems such as seat controllers, mirror adjusters, lighting drivers, and HVAC flap motors. Although this part is not AEC-Q100 qualified (the automotive-grade PIC16F18876-E/MLVAO exists separately), it serves prototyping roles. Its PWM, CWG, and comparators handle motor-drive timing while EUSART supports LIN-bus node communication through an external transceiver.
推薦
Wearable Health and Fitness Devices
Wearable fitness bands, smart watches, and health monitors benefit from the PIC16LF18876-E/ML's ultra-low Sleep current and 1.8V-3.6V operating range that supports coin-cell or rechargeable Li-Po batteries. The 36 I/O accommodate optical heart-rate sensor I2C interfaces, accelerometers, E-ink displays, and haptic feedback drivers. The SCAN/CRC peripheral provides periodic code-integrity checks important for medical-adjacent fitness applications, and the small 44-QFN (8x8 mm) footprint suits space-constrained wrist-worn enclosures.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16LF18876-E/ML — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC16LF18877-E/ML | PIC16LF18875-E/ML | PIC16F18876-E/ML | PIC16LF18876-I/ML | PIC16LF18876-E/MV |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (8x8) with EP | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same | 44-QFN (8x8) - same |
| Program Memory (Flash) | 28 KB | 56 KB | 14 KB | 28 KB | 28 KB | 28 KB |
| RAM | 2 KB | 4 KB | 1 KB | 2 KB | 2 KB | 2 KB |
| Operating Voltage Range | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V (LF) | 2.3 V to 5.5 V (F) | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V (LF) |
| CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Temperature | -40C to +125C (E) | -40C to +125C | -40C to +125C | -40C to +125C | -40C to +85C (I) | -40C to +125C |
| I/O Pins | 36 | 36 | 36 | 36 | 36 | 36 |
主要差異化特點
- XLP Sleep current under 1 uA typical (對比PIC16F18876-E/ML)
- Core Independent Peripherals (CWG, SMT, SCAN/CRC) (對比PIC16LF18855-E/ML)
- 44-QFN with 36 I/O and full PPS remapping (對比PIC16LF18856-I/SS)
設計說明
Estimated: at 32 MHz active and VDD=3.3V, the PIC16LF18876-E/ML draws approximately 5-7 mA typical. In Sleep mode with all peripherals disabled, current drops to <1 uA typical, enabling multi-year coin-cell operation if wake-up events are sparse. Use the LFINTOSC (31 kHz) or HFINTOSC with clock switching to balance throughput and consumption. Decouple VDD/VSS pairs with a 100 nF ceramic capacitor placed within 5 mm of each pin pair.
The 44-QFN exposed pad (EP) must be soldered to a copper pour on the PCB and connected to VSS for thermal dissipation and electrical reference. For high-throughput or industrial-temperature designs, allocate at least 100 mm^2 of PCB copper to the EP pour. Estimated: with proper EP soldering, theta_JA drops to approximately 25-30 C/W, allowing operation across the full -40C to +125C range without derating.
The Configuration Words must be set before code execution or the device may default to a slow internal oscillator with pins in analog mode. Use MPLAB X IDE's Configuration Word tool or the #pragma config directive in XC8. A common mistake is omitting the PPS unlock sequence before remapping peripherals — without the unlock, the PPS registers appear read-only. Also ensure the ICSP pins RB6/RB7 are not accidentally assigned as GPIO through PPS in production firmware, or in-circuit programming will fail.
合規資訊
RoHS and REACH compliant per Microchip product page. This standard E-suffix variant is not AEC-Q100 qualified — automotive designs must use the PIC16F18876-E/MLVAO AEC-Q100 grade instead.
