PIC18LF2220-I/SP - 8-bit 40MHz MCU 4KB Flash | Microchip
MPN: PIC18LF2220-I/SP ✓ Hoạt độngPIC18LF2220-I/SP Tóm tắt
A PIC microcontroller is a compact computer-on-a-chip that integrates a CPU core, non-volatile Flash program memory, SRAM, and a rich set of peripheral modules (I/O ports, timers, A/D converter, communication interfaces) into a single IC. PIC18 microcontrollers sit in the middle of Microchip's 8-bit portfolio above the PIC16 family, offering enhanced instruction set, C-optimized architecture, prioritized interrupts, hardware multiplier, and the nanoWatt power-management feature set. The PIC18LF2220 sits at the lower-density end of the PIC18F2x20 sub-family, sharing peripherals and pinout with its siblings (PIC18F2220, PIC18F2320, PIC18F4220, PIC18F4320).
Key features of the PIC18LF2220-I/SP include the 10-bit A/D converter with up to 10 channels (depending on package), a USART with LIN support, MSSP (SPI/I2C), Capture/Compare/PWM modules, nanoWatt technology for low-power sleep modes (down to ~100 nA typical), and 25 digital I/O pins. The 28-pin SPDIP package offers 0.1 inch (2.54 mm) pin pitch, easy breadboard prototyping, and 25 mA source/sink per I/O for direct LED driving.
The PIC18LF2220 is built on an enhanced Harvard architecture with separate program and data buses plus a 16-bit wide instruction path, supporting a 77-instruction set that includes hardware multiply and literal table reads. The C-friendly MIPS architecture plus XC8 compiler support and Microchip's MPLAB X IDE ecosystem gives developers a complete firmware toolchain. The 40 MHz clock produces 10 MIPS throughput, more than sufficient for sensor-fusion, motor-control loop, and human-machine interface tasks typical of industrial and consumer products.
Typical applications include industrial sensor interface boards, low-cost consumer appliances, battery-powered measurement instruments, home automation controllers, and educational/development platforms where breadboard-friendly SPDIP and 5 V tolerance simplify integration.
When designing with this device, note that the I-grade variant limits operation to -40C to +85C, not the extended -40C to +125C of the E-grade. Pin-compatible upgrades (PIC18F2220/PIC18F2320) exist with more memory and should be considered when the application grows beyond 4 KB of Flash.
This page synthesizes distributor pricing as of 2026-09-28, drop-in package-compatible PIC18 family alternatives, and practical design notes not consolidated on the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC18LF2220-I/SP — 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 PIC18LF2220-I/SP (cùng hình factor và footprint) — khác nhau ở Core Architecture, Package, Timers, Mounting Type, ADC.
PIC18LF2221-I/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF2320-I/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF2220-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F2220-I/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F2320-I/SP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF2420-I/SP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF2220-I/SP Tỷ lệ tối đa & tính chất điện
| Product Family | PIC18F |
| Core Architecture | 8-bit PIC18 (Enhanced Harvard) |
| Maximum Clock Speed | 40 MHz (10 MIPS) |
| Program Memory Type | Flash |
| Program Memory Size | 4 KB (2K x 16) |
| RAM Size | 512 bytes |
| EEPROM Size | 256 bytes |
| Supply Voltage Range (LF) | 2.0 V to 5.5 V |
| Khoảng nhiệt độ hoạt động | -40C to +85C (I-grade) |
| Number of I/O Pins | 25 |
| A/D Converter | 10-bit, up to 10 channels |
| Communication Interfaces | 1x USART (LIN-capable), 1x MSSP (SPI/I2C) |
| Timers | 4 (Timer0/Timer1/Timer2/Timer3) |
| CCP Modules | 2x Capture/Compare/PWM |
| Hộp | 28-pin SPDIP (0.300 inch / 7.62 mm) |
| Kiểu lắp đặt | Through-Hole |
| Pin Pitch | 2.54 mm (0.1 in) |
| nanoWatt Power Management | Yes (sleep currents to ~100 nA) |
| On-Chip Debug | ICD/ICSP |
| RoHS Compliance | Compliant |
Cấu hình chân PIC18LF2220-I/SP
| Chân 1 | MCLR/VPP/RE3 — Master Clear (reset) input / programming voltage / digital input RE3 |
| Chân 2 | RA0/AN0 — Digital I/O RA0 / analog input AN0 |
| Chân 3 | RA1/AN1 — Digital I/O RA1 / analog input AN1 |
| Chân 4 | RA2/AN2/VREF- — Digital I/O RA2 / analog AN2 / A/D negative reference |
| Chân 5 | RA3/AN3/VREF+ — Digital I/O RA3 / analog AN3 / A/D positive reference |
| Chân 6 | RA4/T0CKI — Digital I/O RA4 / Timer0 clock input |
| Chân 7 | RA5/AN4/SS — Digital I/O RA5 / analog AN4 / SPI slave select |
| Chân 8 | OSC1/CLKI/RA7 — Crystal oscillator input / external clock / digital I/O RA7 |
| Chân 9 | OSC2/CLKO/RA6 — Crystal oscillator output / clock output / digital I/O RA6 |
| Chân 10 | RC0/T1OSO/T1CKI — Digital I/O RC0 / Timer1 oscillator output / Timer1 clock input |
| Chân 11 | RC1/T1OSI/CCP2 — Digital I/O RC1 / Timer1 oscillator input / CCP2 output |
| Chân 12 | RC2/CCP1 — Digital I/O RC2 / CCP1 output |
| Chân 13 | RC3/SCK/SCL — Digital I/O RC3 / SPI clock / I2C clock |
| Chân 14 | RC4/SDI/SDA — Digital I/O RC4 / SPI data in / I2C data |
| Chân 15 | RC5/SDO — Digital I/O RC5 / SPI data out |
| Chân 16 | RC6/TX/CK — Digital I/O RC6 / USART TX / USART clock |
| Chân 17 | RC7/RX/DT — Digital I/O RC7 / USART RX / USART data |
| Chân 18 | VSS — Ground reference |
| Chân 19 | VDD — Positive supply (2.0 V to 5.5 V) |
| Chân 20 | RB0/INT0/AN12 — Digital I/O RB0 / external interrupt 0 / analog AN12 |
| Chân 21 | RB1/INT1/AN10 — Digital I/O RB1 / external interrupt 1 / analog AN10 |
| Chân 22 | RB2/INT2/AN8 — Digital I/O RB2 / external interrupt 2 / analog AN8 |
| Chân 23 | RB3/AN9/CCP2 — Digital I/O RB3 / analog AN9 / CCP2 output (alt) |
| Chân 24 | RB4/AN11/KBI0 — Digital I/O RB4 / analog AN11 / interrupt-on-change KBI0 |
| Chân 25 | RB5/KBI1/PGM — Digital I/O RB5 / interrupt-on-change KBI1 / LVP program |
| Chân 26 | RB6/KBI2/PGC — Digital I/O RB6 / interrupt-on-change KBI2 / ICD clock |
| Chân 27 | RB7/KBI3/PGD — Digital I/O RB7 / interrupt-on-change KBI3 / ICD data |
| Chân 28 | AVSS — Analog ground reference |
Ứng dụng tiêu biểu
PIC18LF2220-I/SP phù hợp cho 7 Áp dụngs: Industrial Sensor Interface Board, Low-Cost Consumer Appliance Controller, Battery-Powered Measurement Instrument, Home Automation Controller Node, Educational / Development Platform, Motor Control Subsystem, HMI / Display Control.
Industrial Sensor Interface Board
The PIC18LF2220-I/SP fits 24-bit industrial sensor interface boards thanks to its 10-bit A/D converter with up to 10 input channels and its 2.0 V to 5.5 V supply tolerance that directly accepts 3.3 V and 5 V analog sensor rails. The 40 MHz / 10 MIPS throughput easily handles oversampling averaging of thermocouple, RTD, and 4-20 mA current-loop signals at sub-millisecond rates, while the 25 mA source/sink I/O can directly drive status LEDs and optocoupler inputs. Its 4 KB Flash hosts the calibration curves and Modbus RTU over USART firmware, and the nanoWatt sleep modes (down to ~100 nA) let battery-backed field instruments sleep between sensor reads.
Được đề xuất
Low-Cost Consumer Appliance Controller
In consumer appliances such as coffee machines, countertop ovens, and air purifiers, the PIC18LF2220-I/SP serves as the central control MCU thanks to its 25 mA I/O capable of driving triac/relay interfaces directly, its 2x CCP modules for PWM fan or heater control, and its 2.0-5.5 V LF range that supports both 5 V legacy boards and 3.3 V modern layouts. The 4 KB Flash is adequate for menu UI state machines and PID loops, while the 256-byte EEPROM stores user presets and calibration constants across power cycles. The 28-pin SPDIP package simplifies hand-soldered prototyping for low-volume appliance SKUs.
Được đề xuất
Battery-Powered Measurement Instrument
The PIC18LF2220-I/SP is a strong fit for handheld or remote measurement instruments running from 2x AA or coin-cell batteries thanks to its LF 2.0-5.5 V range, nanoWatt sleep currents typically below 1 uA, and integrated 10-bit A/D for direct sensor digitisation. The MCU can wake from sleep via Timer1, sample the A/D, transmit over USART or MSSP, and return to sleep in milliseconds, drawing average current well under 100 uA and enabling 1-3 year battery life. The 28-pin SPDIP and 4 KB Flash also make it ideal for low-volume educational measurement kits.
Được đề xuất
Home Automation Controller Node
Home automation nodes such as smart switches, blind controllers, and HVAC zone controllers benefit from the PIC18LF2220-I/SP combination of 2.0-5.5 V supply tolerance (works from rectified 5 V or 3.3 V rails), 25 mA sink capability for direct triac or relay drive, and the 40 MHz core running Modbus, KNX, or proprietary RF protocols over MSSP. The 4 KB Flash is enough for node firmware with OTA hooks via ICSP, and the 256-byte EEPROM retains user calibration and pairing keys across power cycles, while the nanoWatt sleep modes keep always-on wall nodes under 0.5 W.
Được đề xuất
Educational / Development Platform
The PIC18LF2220-I/SP is well-suited to university microcontroller courses and maker projects thanks to its 28-pin SPDIP with 0.1 inch pitch that drops directly into breadboards, its compatibility with MPLAB X IDE and the XC8 C compiler, and its on-chip ICSP debug interface that supports Microchip PICkit programmers. The 4 KB Flash and 512-byte RAM are large enough to host typical coursework projects (PWM motor control, UART comms, I2C sensor reads) while keeping compile times short, and the LF 2.0-5.5 V range accepts USB power banks and 3.3 V regulator boards alike.
Được đề xuất
Motor Control Subsystem
Small BLDC, stepper, and brushed DC motor subsystems use the PIC18LF2220-I/SP as the supervisory and PWM controller thanks to its 2x CCP modules generating complementary PWM up to 40 MHz, its 25 mA I/O driving logic-level FET gate drivers directly, and its 10-bit A/D sampling back-EMF and current-sense feedback in real time. The 2.0-5.5 V LF range supports both 3.3 V MCU boards and 5 V legacy drivers, while the 40 MHz / 10 MIPS throughput executes field-oriented control or trapezoidal commutation loops comfortably with margin for UART diagnostics.
Được đề xuất
HMI / Display Control
The PIC18LF2220-I/SP serves as the host controller for small character-LCD and LED-matrix human-machine interfaces thanks to its MSSP (SPI/I2C) bus driving common LCD and dot-matrix modules, its 25 mA I/O that sources segment LEDs and keypad scan lines directly, and its 40 MHz throughput updating displays without visible flicker. The 4 KB Flash supports multi-language menu trees, while the 256-byte EEPROM saves user preferences and calibration constants, and the LF 2.0-5.5 V range lets the same firmware run on 3.3 V or 5 V backplane boards.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18LF2220-I/SP — 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 | PIC18LF2221-I/SP | PIC18LF2320-I/SP | PIC18LF2220-I/SO | PIC18F2220-I/SP |
|---|---|---|---|---|---|
| Package | 28-pin SPDIP (through-hole) | 28-pin SPDIP (same) | 28-pin SPDIP (same) | 28-pin SOIC (surface mount) | 28-pin SPDIP (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 4 KB | 8 KB | 8 KB | 4 KB | 4 KB |
| RAM | 512 B | 512 B | 512 B | 512 B | 512 B |
| Supply Voltage Range | 2.0 V to 5.5 V (LF) | 2.0 V to 5.5 V (LF) | 2.0 V to 5.5 V (LF) | 2.0 V to 5.5 V (LF) | 4.2 V to 5.5 V (F) |
| Max Clock Speed | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) |
| I/O Pins | 25 | 25 | 25 | 25 | 25 |
| A/D Converter | 10-bit, 10 ch | 10-bit, 10 ch | 10-bit, 10 ch | 10-bit, 10 ch | 10-bit, 10 ch |
| Operating Temperature | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| Pricing (qty 1, USD) | $3.42 | approx $3.85 | approx $4.10 | approx $3.20 | approx $3.55 |
Bảo phân biệt quan trọng
- LF variant supports 3.3 V single-rail operation (vsPIC18F2220-I/SP)
- Drop-in Flash upgrade path within same package (vsPIC18LF2221-I/SP)
- Breadboard-friendly through-hole package (vsPIC18LF2220-I/SO)
- Integrated 10-bit A/D with up to 10 analog inputs (vsPIC18F2220-I/SP)
Ghi chú thiết kế
The PIC18LF2220-I/SP draws roughly 1-10 mA active at 40 MHz depending on VDD and peripheral use, and below 1 uA in sleep with nanoWatt modes enabled. For battery designs, configure Timer1 with a 32.768 kHz crystal and use the Watchdog Timer in non-windowed mode to wake from sleep periodically. Place a 100 nF decoupling capacitor within 5 mm of VDD and a bulk 10 uF tantalum or ceramic at the PCB power entry to suppress digital switching noise on the analog AVSS/VDD rails.
On the 28-pin SPDIP, route the crystal traces (OSC1/OSC2) as short as possible, surround them with a ground pour, and keep them away from the A/D analog pins (AN0-AN4) and high-current I/O switching lines. Provide a separate analog ground island connected to AVSS and tied to digital ground at a single point near the MCU. Keep MCLR trace short and place the MCLR pull-up (typically 10 kOhm) close to the pin; do not share the MCLR pin with high-speed switching signals.
Do not confuse the PIC18LF2220-I/SP (2.0-5.5 V LF) with the PIC18F2220-I/SP (4.2-5.5 V F) when designing 3.3 V systems - the F variant will not start at 3.3 V. Always set the CONFIG1H oscillator configuration bits correctly for your external crystal versus internal RC oscillator to avoid lock-up. When migrating code to PIC18LF2221/2320, recompile for the new Flash size and verify interrupt vector remapping per the PIC18F family reference manual. Pin 1 MCLR must NOT be left floating - use a 10 kOhm pull-up to VDD or rely on the internal weak pull-up only after enabling it in firmware.
For reliable ICSP programming and in-circuit debugging, keep PGC (RB6) and PGD (RB7) accessible and avoid series resistors above 100 ohm in those traces. If long traces are unavoidable, use 4.7 kOhm pull-ups on PGC and PGD to maintain signal integrity. Reserve the ICSP connector footprint even in production boards - field firmware updates often justify keeping the programming header.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page; lead-free SPDIP package; PIC18LF2220-I/SP is not AEC-Q100 qualified - consider PIC18F2220-I/SP automotive-grade variant (Q suffix not present in -I/SP, automotive parts use -E/SP or -Q prefix) for vehicle applications.
