PIC16LF18876-I/MV - 32MHz 8-bit MCU, 28KB Flash | Microchip
MPN: PIC16LF18876-I/MV ✓ פעילPIC16LF18876-I/MV סקירה
An 8-bit microcontroller (MCU) is a small, self-contained computing device that integrates a CPU, non-volatile program memory, volatile data memory, and a mix of analog and digital peripherals onto a single silicon die. In the broader electronics taxonomy it sits under microcontroller -> embedded processor -> semiconductor device. The PIC16 family uses a modified Harvard RISC architecture with a 14-bit instruction word, and the 'LF' suffix denotes the extended low-voltage operating range (1.8V to 3.6V) that complements the standard PIC16F parts (which run up to 5.5V). The '18876' family is positioned in the upper-mid tier of the PIC16 line, integrating rich analog and Core Independent Peripherals (CIPs) so that many tasks - timing, signal conditioning, communications - run without waking the CPU.
Key features of this part include a 10-bit ADC with computation, up to 36 I/O pins, support for up to 32MHz internal oscillator operation, integrated Core Independent Peripherals such as CRC/SCAN and HLT (Hardware Limit Timer), and eXtreme Low Power (XLP) technology with deep-sleep currents in the nanoampere range. The on-chip peripherals - including multiple UART, SPI, I2C, PWM, comparators, and op-amps - allow designers to assemble a complete sensor or motor-control node with few external components.
Architecturally the device pairs an 8-bit accumulator-based ALU with a 14-bit instruction set, deterministic interrupt latency, and a configurable oscillator block that supports external crystals, internal HF/LF oscillators, and a 32kHz low-power crystal mode. The 28KB Flash and 2KB RAM are sized for typical mid-tier embedded firmware stacks - sensor fusion, protocol bridges, and small RTOS workloads - and the in-circuit debugger (ICD) interface enables field firmware updates.
Typical applications include industrial sensor nodes, low-power IoT edge devices, battery-powered instrumentation, home appliance control boards, and automotive interior subsystems. Its 36 I/O count and analog-rich peripherals also make it suitable for small motor-control loops, multi-channel LED drivers, and capacitive-touch user interfaces.
When designing with the PIC16LF18876-I/MV, observe the 1.8V to 3.6V supply window for LF parts (going above 3.6V will damage the part - if a 5V rail is required, select the PIC16F18876 instead), place the exposed pad (EP) on a continuous ground plane for thermal relief, and reserve the ICSPCLK/ICSPDAT pins for in-circuit programming access. Plan the I/O map against the 36 available pins early in the schematic phase.
This page synthesizes distributor pricing, drop-in PIC16 family alternatives, and practical PCB design guidance not found in the manufacturer datasheet alone.
חלופות תחליף ישיר עבור PIC16LF18876-I/MV — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC16LF18876-I/MV (אותו גורם צורה וטביעת רגל) — שונים ב ADC, Package, Program Memory (Flash), Core Architecture, Operating Temperature.
PIC16LF18875-I/MV
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16LF18876T-I/MV
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC16F18876-I/MV
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16F18876T-I/MV
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16LF18876-I/P
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC16LF18876-I/MV דירוגים מרביים ומאפיינים חשמליים
| Product Family | PIC16F (XLP 16F) |
| Core Architecture | 8-bit RISC (PIC16 enhanced mid-range) |
| Maximum CPU Frequency | 32 MHz |
| Program Memory (Flash) | 28 KB (16K x 14 words) |
| Data RAM | 2 KB |
| Operating Voltage (VDD) | 1.8 V to 3.6 V (LF variant) |
| I/O Pins | 36 |
| ADC | 10-bit |
| מארז | 40-pin UQFN (5x5 mm) with exposed pad |
| סוג הרכבה | Surface Mount |
| טמפרטורת פעולה | -40 C to +85 C (industrial grade) |
| Temperature Grade | Industrial |
| סטטוס RoHS | Compliant |
| Lead-Free | Yes |
| Peripheral Highlights | CRC/SCAN, HLT, CWG, NCO, PWM, multiple UART/SPI/I2C, op-amps, comparators |
תצורת פינים של PIC16LF18876-I/MV
| פין 1 | RA5 — GPIO RA5 / digital input |
| פין 2 | RA4 — GPIO RA4 |
| פין 3 | RA3 — GPIO RA3 |
| פין 4 | RA2 — GPIO RA2 |
| פין 5 | RA1 — GPIO RA1 / ICSPCLK |
| פין 6 | RA0 — GPIO RA0 / ICSPDAT |
| פין 7 | VSS — Ground |
| פין 8 | RA7 — GPIO RA7 / CLKIN |
| פין 9 | RA6 — GPIO RA6 / CLKOUT |
| פין 10 | RC0 — GPIO RC0 |
| פין 11 | RC1 — GPIO RC1 |
| פין 12 | RC2 — GPIO RC2 |
| פין 13 | RC3 — GPIO RC3 |
| פין 14 | RC4 — GPIO RC4 |
| פין 15 | RC5 — GPIO RC5 |
| פין 16 | RC6 — GPIO RC6 / TX |
| פין 17 | RC7 — GPIO RC7 / RX |
| פין 18 | RB7 — GPIO RB7 |
| פין 19 | RB6 — GPIO RB6 / PGC |
| פין 20 | RB5 — GPIO RB5 / PGD |
| פין 21 | RB4 — GPIO RB4 |
| פין 22 | RB3 — GPIO RB3 |
| פין 23 | RB2 — GPIO RB2 |
| פין 24 | RB1 — GPIO RB1 |
| פין 25 | RB0 — GPIO RB0 |
| פין 26 | VDD — Positive supply (1.8 V to 3.6 V) |
| פין 27 | RD7 — GPIO RD7 |
| פין 28 | RD6 — GPIO RD6 |
| פין 29 | RD5 — GPIO RD5 |
| פין 30 | RD4 — GPIO RD4 |
| פין 31 | RD3 — GPIO RD3 |
| פין 32 | RD2 — GPIO RD2 |
| פין 33 | RD1 — GPIO RD1 |
| פין 34 | RD0 — GPIO RD0 |
| פין 35 | RE3 — GPIO RE3 / MCLR |
| פין 36 | RE2 — GPIO RE2 |
| פין 37 | RE1 — GPIO RE1 |
| פין 38 | RE0 — GPIO RE0 |
| פין 39 | AVSS — Analog ground |
| פין 40 | AVDD — Analog supply (tie to VDD) |
יישומים טיפוסיים
PIC16LF18876-I/MV מתאים עבור 7 יישוםs: Industrial Sensor Node, Battery-Powered IoT Edge Device, Home Appliance Control Board, Capacitive Touch User Interface, Multi-Channel LED Driver Board, Automotive Body Electronics Module, Portable Medical Monitoring Accessory.
Industrial Sensor Node
The PIC16LF18876-I/MV fits industrial sensor nodes because its 32 MHz core, 28 KB Flash, and 10-bit ADC with computation enable local sensor conditioning without an external amplifier. The on-chip Core Independent Peripherals - CRC/SCAN for memory integrity, HLT for watchdog-style timing - run in sleep mode at sub-microamp currents, allowing battery-powered 4-20 mA loop replacements to last 5-10 years on a single primary cell. Its 1.8 V to 3.6 V supply window is well-matched to lithium-thionyl chloride cells.
מומלץ
Battery-Powered IoT Edge Device
For battery-powered IoT edge devices, the PIC16LF18876-I/MV's eXtreme Low Power (XLP) technology delivers sleep currents in the nanoampere range, and its 1.8 V minimum VDD allows operation directly from a single alkaline or lithium cell down to end-of-life voltage. The 28 KB Flash supports BLE/Zigbee stack fragments or LoRaWAN MAC layers for duty-cycled sensor reporting. The 36 I/O count accommodates multi-sensor fusion boards without external GPIO expanders.
מומלץ
Home Appliance Control Board
Home appliance control boards - washing machines, dishwashers, induction cooktops - benefit from the PIC16LF18876-I/MV's 36 I/O count, integrated op-amps for current sensing, and CWG (Complementary Waveform Generator) for IGBT/MOSFET half-bridge drives. The 28 KB Flash supports user-interface state machines plus motor-control loops, and the 1.8 V to 3.6 V supply aligns with 3.3 V logic rails. Multiple UART/SPI/I2C instances enable simultaneous HMI display, sensor hub, and inverter communications.
מומלץ
Capacitive Touch User Interface
Capacitive touch user interfaces for kitchen appliances, automotive interiors, and consumer electronics use the PIC16LF18876-I/MV's mTouch peripheral and CVD (Capacitive Voltage Divider) front end to scan 8-16 touch electrodes without external analog components. The 32 MHz CPU executes the touch-decision algorithm in microseconds, while the integrated Core Independent Peripherals handle LED PWM feedback in parallel without CPU loading. The 40-pin UQFN 5x5 mm package enables compact touch-pad PCBs.
מומלץ
Multi-Channel LED Driver Board
Multi-channel LED driver boards - architectural lighting, horticultural fixtures, display backlights - leverage the PIC16LF18876-I/MV's 16-bit PWM channels and CWG to dim and color-mix LED strings with high resolution. The 28 KB Flash supports DMX-512 / DALI / 0-10 V protocol stacks alongside the dimming algorithm, and the 2 KB RAM is sufficient for 16-channel color-point buffers. The 1.8 V to 3.6 V supply is compatible with constant-current LED driver ICs operating from a 3.3 V rail.
מומלץ
Automotive Body Electronics Module
Automotive body electronics modules - door modules, seat controllers, HVAC blend-door actuators - use the PIC16LF18876-I/MV's CAN-ready peripherals and LIN support, combined with the 36 I/O count to drive multiple loads. The -40 C to +85 C industrial temperature grade covers cabin environments. Note: for under-hood AEC-Q100-qualified applications, select the PIC16F18876-E/MV or PIC16F18876-I/MV Q1 variants instead - the standard part is NOT AEC-Q100 qualified.
מומלץ
Portable Medical Monitoring Accessory
Portable medical monitoring accessories - pulse oximeters, single-lead ECG patches, wearable spirometers - benefit from the PIC16LF18876-I/MV's low-power sleep modes that extend battery life into weeks, and its 10-bit ADC with computation for sensor signal conditioning. The 28 KB Flash fits small embedded algorithms for heart-rate detection or respiratory waveform analysis. The industrial -40 C to +85 C temperature grade covers body-temperature operating ranges. For FDA-grade medical designs, perform additional verification and validation per IEC 62304.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC16LF18876-I/MV — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC16LF18875-I/MV | PIC16LF18876T-I/MV | PIC16F18876-I/MV | PIC16F18876T-I/MV | PIC16LF18876-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-pin UQFN (5x5 mm) EP | 40-pin UQFN (5x5 mm) EP - same | 40-pin UQFN (5x5 mm) EP - same | 40-pin UQFN (5x5 mm) EP - same | 40-pin UQFN (5x5 mm) EP - same | 40-pin PDIP - DIFFERENT footprint (through-hole) |
| Operating Voltage (VDD) | 1.8 V to 3.6 V | 1.8 V to 3.6 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 |
| Flash Program Memory | 28 KB | 14 KB (-50%) | 28 KB | 28 KB | 28 KB | 28 KB |
| RAM | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB | 2 KB |
| Maximum CPU Frequency | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| I/O Pins | 36 | 36 | 36 | 36 | 36 | 36 |
| Temperature Grade | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C |
| Core / Family | PIC16F XLP enhanced mid-range 8-bit | PIC16F XLP enhanced mid-range 8-bit | PIC16F XLP enhanced mid-range 8-bit | PIC16F XLP enhanced mid-range 8-bit | PIC16F XLP enhanced mid-range 8-bit | PIC16F XLP enhanced mid-range 8-bit |
| AEC-Q100 Automotive Qualified | No | No | No | No (select PIC16F18876-I/MV Q1 suffix for AEC-Q100) | No | No |
מבדילים עיקריים
- Lower operating voltage minimum (1.8 V) for single-cell battery designs (לעומתPIC16F18876-I/MV)
- Rich Core Independent Peripherals (CIPs) reduce CPU loading (לעומתPIC16LF15375)
- 40-pin UQFN 5x5 mm footprint with 36 I/O (לעומתPIC16LF18854-I/SO)
הערות תכנון
Decouple VDD and AVDD each with a 100 nF ceramic capacitor placed within 5 mm of the respective pin. For the 40-pin UQFN EP variant, the exposed pad is the primary thermal and electrical ground - solder it to a continuous ground plane with at least 4 thermal vias to the inner layers. Estimated: at 32 MHz active current of ~6 mA + peripheral current, total active power is ~20 mW at 3.3 V - well within UQFN thermal limits even without a dedicated heatsink.
Reserve pins RA0/RA1 (ICSPDAT/ICSPCLK) and RB6/RB5 (PGC/PGD) for in-circuit serial programming access - even if not used in production, leave test pads or a programming header to enable field firmware updates. The 5x5 mm UQFN has 0.4 mm pitch pads - use NSMD (non-solder mask defined) pads with at least 0.2 mm copper-to-pad clearance to prevent solder bridging. Estimated trace widths of 0.15 mm are appropriate for signal traces under the part.
Do NOT apply >3.6 V to the PIC16LF18876 LF part - the LF silicon lacks the higher-voltage tolerance of the standard PIC16F18876 and will be damaged. Do NOT leave MCLR (RE3) floating - tie to VDD via a 10 kohm resistor or drive it actively. Do NOT rely on the internal oscillator at temperatures below -20 C without calibrating at the operating temperature - crystal drift compensation may be required for UART communications at low temperatures.
Place the UQFN-40 footprint centered on a 1 square inch copper pour on the top layer, stitched to a ground plane on layer 2 with 0.3 mm thermal vias spaced 1 mm apart. Keep analog signal traces (those routed to RA0-RA5 and the ADC channels) short and away from PWM and digital switching traces. The mTouch sensing traces should be guarded by a ground trace on both sides and not cross any switching signal trace.
מידע על תאימות
RoHS compliant and lead-free per Microchip product page. NOT AEC-Q100 qualified - select PIC16F18876-E/MV (Q1 suffix) for AEC-Q100 automotive. Halogen-free status not explicitly listed in the verified distributor data.
