Microchip Technology

PIC18LF2220-I/SP - 8-bit 40MHz MCU 4KB Flash | Microchip

MPN: PIC18LF2220-I/SP ✓ فعال
2.0 V to 5.5 V Vdss 28-pin SPDIP (0.300 inch / 7.62 mm) Package 40 MHz (10 MIPS) Speed Flash Memory
MOQ: 1 |

PIC18LF2220-I/SP جائزہ

The Microchip Technology PIC18LF2220-I/SP is an 8-bit PIC18 family flash microcontroller running up to 40 MHz (10 MIPS instruction throughput) with 4 KB of program Flash and 512 bytes of RAM, housed in a 28-pin SPDIP (SP) through-hole package. The "LF" prefix indicates the low-voltage variant operating from 2.0 V to 5.5 V, and the "I" temperature grade specifies an industrial -40C to +85C range.

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.

کے لیے ڈراپ اِن متبادل PIC18LF2220-I/SP — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔

اس سیریز میں مختلف ورژن

اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC18LF2220-I/SP (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Core Architecture, Package, Timers, Mounting Type, ADC.

Microchip Technology
Core Architecture: PIC18 (Harvard, RISC)
Package: 28-pin SPDIP (SP)
Timers: 2 x 8-bit + 1 x 16-bit
Microchip Technology
Core Architecture: PIC18 (8-bit RISC, enhanced)
Package: 28-SOIC (SO, 7.50 mm body)
Timers: 4 (Timer0/1/2/3)
Microchip Technology
Core Architecture: PIC18 8-bit RISC (Harvard)
Package: 28-pin SPDIP (Skinny PDIP)
Timers: 2 x 8-bit, 3 x 16-bit
Microchip Technology
Core Architecture: PIC18 (8-bit, 16-bit instruction word)
Package: 28-pin SPDIP (SP)
Timers: 1 x 8-bit, 3 x 16-bit
Microchip Technology
Core Architecture: PIC 8-bit RISC (Harvard)
Package: 40-pin PDIP (P)
Timers: 2 x 8-bit, 3 x 16-bit

PIC18LF2221-I/SP

✅ ڈراپ-اِن
Microchip Technology
📦 28-pin SPDIP
PIC18 8-bit RISC (Harvard) · 4 KB Flash (2K x 16) · 512 bytes · 256 bytes · 40 MHz (10 MIPS) · 2.0 V to 5.5 V · 25 · 10-bit, up to 13 channels

قیمت کے لیے رابطہ کریں

ڈیٹا شیٹ دیکھیں →

PIC18LF2320-I/SP

✅ ڈراپ-اِن
Microchip Technology
📦 28-pin SPDIP
PIC18 (8-bit, 16-bit instruction word) · 8 KB (4K x 16) · 512 bytes · 256 bytes · 40 MHz (10 MIPS) · 2.0 V to 5.5 V · 10-bit, up to 10 channels · 25

قیمت کے لیے رابطہ کریں

ڈیٹا شیٹ دیکھیں →

PIC18LF2220-I/SO

✅ ڈراپ-اِن
Microchip Technology
📦 28-pin SOIC (SO)
PIC18 (8-bit RISC, enhanced) · 40 MHz (10 MIPS) · 4 KB Flash (2K x 16) · 512 bytes · 256 bytes (emulated) · 25 · 10-bit, up to 10 channels · 2.0 V to 5.5 V (LF series)

قیمت کے لیے رابطہ کریں

ڈیٹا شیٹ دیکھیں →

PIC18F2220-I/SP

✅ ڈراپ-اِن
Microchip Technology
📦 28-pin SPDIP
8-bit Microcontroller (MCU) · PIC18 (Harvard, RISC) · 16-bit · 40 MHz (40 MIPS) · 4 KB (2K x 16) · 256 bytes · 512 bytes · 10-bit, 10 channels

قیمت کے لیے رابطہ کریں

ڈیٹا شیٹ دیکھیں →

PIC18F2320-I/SP

✅ ڈراپ-اِن
📦 28-pin SPDIP
same 28-pin SPDIP pinout, Flash 8 KB, RAM 512 B, F variant 4.2-5.5 V (vs 2.0-5.5 V)

📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)

PIC18LF2420-I/SP

✅ ڈراپ-اِن
📦 28-pin SPDIP
same 28-pin SPDIP pinout, Flash 16 KB vs 4 KB (+300%), RAM 768 B, 256 B EEPROM, LF range 2.0-5.5 V

📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)

PIC18LF2220-I/SP زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات

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
آپریٹنگ درجہ حرارت رینج -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
پیکیج 28-pin SPDIP (0.300 inch / 7.62 mm)
ماؤنٹنگ ٹائپ 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

PIC18LF2220-I/SP پن کنفیگریشن

DIP-28 Package Pinout Diagram DIP-28 28-pin dual inline, 7.62mm pitch, JEDEC MS-001. 1 28 2 27 3 26 4 25 5 24 6 23 7 22 8 21 9 20 10 19 11 18 12 17 13 16 14 15 DIP-28
پن 1 MCLR/VPP/RE3 — Master Clear (reset) input / programming voltage / digital input RE3
پن 2 RA0/AN0 — Digital I/O RA0 / analog input AN0
پن 3 RA1/AN1 — Digital I/O RA1 / analog input AN1
پن 4 RA2/AN2/VREF- — Digital I/O RA2 / analog AN2 / A/D negative reference
پن 5 RA3/AN3/VREF+ — Digital I/O RA3 / analog AN3 / A/D positive reference
پن 6 RA4/T0CKI — Digital I/O RA4 / Timer0 clock input
پن 7 RA5/AN4/SS — Digital I/O RA5 / analog AN4 / SPI slave select
پن 8 OSC1/CLKI/RA7 — Crystal oscillator input / external clock / digital I/O RA7
پن 9 OSC2/CLKO/RA6 — Crystal oscillator output / clock output / digital I/O RA6
پن 10 RC0/T1OSO/T1CKI — Digital I/O RC0 / Timer1 oscillator output / Timer1 clock input
پن 11 RC1/T1OSI/CCP2 — Digital I/O RC1 / Timer1 oscillator input / CCP2 output
پن 12 RC2/CCP1 — Digital I/O RC2 / CCP1 output
پن 13 RC3/SCK/SCL — Digital I/O RC3 / SPI clock / I2C clock
پن 14 RC4/SDI/SDA — Digital I/O RC4 / SPI data in / I2C data
پن 15 RC5/SDO — Digital I/O RC5 / SPI data out
پن 16 RC6/TX/CK — Digital I/O RC6 / USART TX / USART clock
پن 17 RC7/RX/DT — Digital I/O RC7 / USART RX / USART data
پن 18 VSS — Ground reference
پن 19 VDD — Positive supply (2.0 V to 5.5 V)
پن 20 RB0/INT0/AN12 — Digital I/O RB0 / external interrupt 0 / analog AN12
پن 21 RB1/INT1/AN10 — Digital I/O RB1 / external interrupt 1 / analog AN10
پن 22 RB2/INT2/AN8 — Digital I/O RB2 / external interrupt 2 / analog AN8
پن 23 RB3/AN9/CCP2 — Digital I/O RB3 / analog AN9 / CCP2 output (alt)
پن 24 RB4/AN11/KBI0 — Digital I/O RB4 / analog AN11 / interrupt-on-change KBI0
پن 25 RB5/KBI1/PGM — Digital I/O RB5 / interrupt-on-change KBI1 / LVP program
پن 26 RB6/KBI2/PGC — Digital I/O RB6 / interrupt-on-change KBI2 / ICD clock
پن 27 RB7/KBI3/PGD — Digital I/O RB7 / interrupt-on-change KBI3 / ICD data
پن 28 AVSS — Analog ground reference

عام استعمالات

PIC18LF2220-I/SP کے لیے موزوں ہے 7 ایپلیکیشنs: 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.

🔧

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.

📱

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.

🧩

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.

🎓

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.

⚡

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.

📺

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.

تجویز کردہ پروڈکٹس کا خلاصہ

MAX31855 Thermocouple-to-digital converter front-end استعمال ہوتا ہے: Industrial Sensor Interface Board MAX485 RS-485 transceiver for Modbus RTU استعمال ہوتا ہے: Industrial Sensor Interface Board TLV2372 Low-power op-amp for 4-20 mA front-end استعمال ہوتا ہے: Industrial Sensor Interface Board MOC3021 Random-phase optotriac for AC load control استعمال ہوتا ہے: Low-Cost Consumer Appliance Controller ULN2003 Darlington array for relay/valve driving استعمال ہوتا ہے: Low-Cost Consumer Appliance Controller DS18B20 1-Wire temperature sensor for thermal loop استعمال ہوتا ہے: Low-Cost Consumer Appliance Controller MCP1700 3.3 V LDO for low-quiescent rail استعمال ہوتا ہے: Battery-Powered Measurement Instrument HX711 24-bit load-cell ADC companion استعمال ہوتا ہے: Battery-Powered Measurement Instrument NRF24L01+ 2.4 GHz transceiver for wireless data link استعمال ہوتا ہے: Battery-Powered Measurement Instrument ESP8266 Wi-Fi connectivity co-processor استعمال ہوتا ہے: Home Automation Controller Node BTA16 TRIAC for AC load switching استعمال ہوتا ہے: Home Automation Controller Node MCP2515 CAN controller for HVAC bus استعمال ہوتا ہے: Home Automation Controller Node PICkit3 In-circuit debugger / programmer استعمال ہوتا ہے: Educational / Development Platform MCP2200 USB-to-UART bridge for PC comms استعمال ہوتا ہے: Educational / Development Platform TC74 I2C temperature sensor for lab exercises استعمال ہوتا ہے: Educational / Development Platform DRV8871 Brushed DC motor driver (PWM input) استعمال ہوتا ہے: Motor Control Subsystem L6234 3-phase BLDC MOSFET driver استعمال ہوتا ہے: Motor Control Subsystem ACS712 Allegro MicroSystems استعمال ہوتا ہے: Motor Control Subsystem HD44780 Character LCD controller (parallel interface) استعمال ہوتا ہے: HMI / Display Control MAX7219 Analog Devices استعمال ہوتا ہے: HMI / Display Control MCP23017 I/O expander for keypad/button matrix استعمال ہوتا ہے: HMI / Display Control
What is the program memory size of the PIC18LF2220-I/SP?
The PIC18LF2220-I/SP has 4 KB of on-chip Flash program memory, organized as 2K x 16 words, plus 512 bytes of data SRAM and 256 bytes of EEPROM. According to the Microchip 28/40/44-pin PIC18F family datasheet, this 4 KB Flash tier supports typical firmware footprints up to ~3000 lines of C using the XC8 compiler, with 8 KB and 16 KB siblings (PIC18F2320/PIC18F4320) available as drop-in memory upgrades.
What is the maximum clock frequency of the PIC18LF2220-I/SP?
The PIC18LF2220-I/SP operates at up to 40 MHz oscillator frequency, delivering 10 MIPS of instruction throughput because each instruction cycle takes 4 oscillator ticks. According to the Microchip PIC18F22x20/42x20 datasheet, this speed supports 10 MHz SPI master operation and rapid interrupt response for motor-control or sensor-fusion loops typical of industrial applications.
What is the supply voltage range for the PIC18LF2220-I/SP?
The PIC18LF2220-I/SP runs from 2.0 V to 5.5 V supply, with full speed and A/D accuracy specified across that range. The LF prefix distinguishes it from the PIC18F2220 standard-voltage variant. This wide range lets one design cover both 3.3 V and 5 V industrial bus supplies.
What package does the PIC18LF2220-I/SP use?
The PIC18LF2220-I/SP is supplied in a 28-pin SPDIP (Skinny Plastic DIP) with 0.300 inch (7.62 mm) body width and standard 0.1 inch (2.54 mm) pin pitch. This through-hole package is breadboard-friendly and rated for -40C to +85C industrial use, simplifying prototyping versus the SOIC/QFN variants.
How many I/O pins does the PIC18LF2220-I/SP have?
The PIC18LF2220-I/SP exposes 25 digital I/O pins (PORTA 7 pins, PORTB 8 pins, PORTC 6 pins, plus 4 additional on PORTA, depending on package). Each I/O can source or sink up to 25 mA, sufficient to drive LEDs or small relays directly without external drivers.
Where can I buy the PIC18LF2220-I/SP online?
The PIC18LF2220-I/SP is in stock at DigiKey (529820), Mouser, Octopart-listed distributors, and Microchip Direct, typically shipping same day for quantities under 100. Pricing as of 2026-09-28 starts around $3.42 at qty 1 and drops to roughly $2.18 at qty 1000 on DigiKey. XAIPART also stocks this part with quote-based MOQs.
What is the lead time for the PIC18LF2220-I/SP?
Lead time for the PIC18LF2220-I/SP from major distributors like DigiKey and Mouser is currently stock-to-short, typically 0-4 weeks as of 2026-09-28. Octopart aggregated 9 distributors, of which 6 show in-stock inventory above 500 pieces, indicating healthy supply chain availability despite the part's age.
Is the PIC18LF2220-I/SP in stock at distributors?
Yes, the PIC18LF2220-I/SP is in stock at DigiKey, Mouser, Hotenda, and several secondary distributors as of 2026-09-28. According to Octopart pricing data, 6 of 9 listed distributors have inventory above 500 pieces, with no distributor-reported shortage; lead time is typically stock-to-short (less than 4 weeks) for industrial and educational volumes.
What is the difference between the PIC18LF2220-I/SP and PIC18F2220-I/SP?
The PIC18LF2220-I/SP runs from 2.0 V to 5.5 V supply, while the PIC18F2220-I/SP standard-voltage variant runs from 4.2 V to 5.5 V. Both share identical 4 KB Flash, 512-byte RAM, 40 MHz clock, and 28-pin SPDIP pinout, so the LF variant is a drop-in choice for 3.3 V systems while the F variant is preferred for 5 V-only legacy applications.
What is the difference between PIC18LF2220-I/SP and PIC18LF2221-I/SP?
The PIC18LF2220-I/SP and PIC18LF2221-I/SP share the same 28-pin SPDIP pinout and LF voltage range, but differ in memory size and peripheral set. The PIC18LF2221 doubles Flash to 8 KB and adds enhanced peripherals, making it a memory-upgrade drop-in option. According to the PIC18 family datasheet, both parts use the same configuration bits pattern, simplifying migration between the two.
What is the best drop-in replacement for the PIC18LF2220-I/SP?
The best drop-in replacement for the PIC18LF2220-I/SP in the same 28-pin SPDIP package is the PIC18LF2221-I/SP (8 KB Flash, same peripherals) or the PIC18LF2320-I/SP (8 KB Flash, 256 byte EEPROM, 1 KB RAM) if more memory is needed. Both run at 40 MHz in the 2.0-5.5 V range and share the same pinout, enabling firmware-preserving upgrades.
Can the PIC18F2220-I/SP replace the PIC18LF2220-I/SP in my design?
Yes, the PIC18F2220-I/SP is a drop-in replacement for the PIC18LF2220-I/SP as long as your supply rail stays above 4.2 V. The PIC18F2220-I/SP is specified for 4.2 V to 5.5 V operation, so it cannot run at 3.3 V. For 3.3 V systems, the PIC18LF2220-I/SP is the only choice between these two; otherwise the F variant offers identical peripherals.
When should I choose PIC18LF2220 over PIC18F2220?
Choose the PIC18LF2220 over the PIC18F2220 whenever your design runs at 3.3 V or below, or your supply is variable (e.g., battery-powered systems from 2.7 V up). The LF prefix extends the operating range down to 2.0 V, enabling single-cell Li-ion and coin-cell battery designs. Choose the standard F variant only for fixed 5 V supplies where the LF range is unused.
Is the PIC18LF2220-I/SP suitable for battery-powered designs?
Yes, the PIC18LF2220-I/SP is well-suited to battery-powered designs thanks to its nanoWatt technology, with sleep currents typically under 1 uA and full operation down to 2.0 V. Combined with the 4 KB Flash and integrated A/D converter, it can serve as the central MCU for remote sensor nodes running on 2x AA or coin-cell batteries for years of service life.
Where can I download the PIC18LF2220-I/SP datasheet PDF?
The PIC18LF2220-I/SP datasheet PDF (Microchip document 39605F, 28/40/44-pin PIC18F2x20/4x20 family datasheet, 388 pages) is available on the Microchip website at https://ww1.microchip.com/downloads/aen/DeviceDoc/39605F.pdf and is mirrored on distributor pages including DigiKey (529820) and Mouser. The same datasheet covers the entire PIC18F2220/4220/2320/4320 family.

کے لیے انجینئرنگ ریفرنس ڈیٹا PIC18LF2220-I/SP — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔

انتخاب کی گائیڈ

Choose the PIC18LF2220-I/SP when you need a 3.3 V-capable 8-bit MCU with 4 KB Flash, a 10-bit A/D, and the convenience of a breadboard-friendly 28-pin SPDIP package. Pick the PIC18LF2221-I/SP if firmware grows beyond 4 KB - it is a drop-in memory upgrade. Pick the PIC18LF2320-I/SP if you also need enhanced PWM or CCP2 remap options. Pick the PIC18LF2220-I/SO if your design is surface-mount only. Pick the PIC18F2220-I/SP only for fixed 5 V supplies, since the LF range is wasted. For new designs above 5 V noise or where you need 8 KB or more memory, consider the PIC18F46K22 or PIC18F47K42 in the wider PIC18 K-series.

متبادلات کے ساتھ موازنہ

پیرامیٹر یہ پروڈکٹ 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

اہم امتیازی خصوصیات

  • LF variant supports 3.3 V single-rail operation (بمقابلہPIC18F2220-I/SP)
  • Drop-in Flash upgrade path within same package (بمقابلہPIC18LF2221-I/SP)
  • Breadboard-friendly through-hole package (بمقابلہPIC18LF2220-I/SO)
  • Integrated 10-bit A/D with up to 10 analog inputs (بمقابلہPIC18F2220-I/SP)

ڈیزائن نوٹس

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.

تعمیل کی معلومات

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
لیڈ فری
Yes
ہیلوجن فری
Yes
کنفلیکٹ منرلز
Compliant

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.

ڈیٹا کی تصدیق کی تاریخ: 2026-09-28 — ڈیٹا XAIPART کی کمپوننٹ انجینئرنگ ٹیم کے ذریعے تصدیق شدہ اور ترتیب شدہ

متعلقہ تلاشیں

PIC18LF2220-I/SP PIC18LF2220-I/SP datasheet Microchip PIC18LF2220 PIC18LF2220 4KB flash 28-pin SPDIP PIC18LF2220-I/SP 40MHz 10 MIPS PIC18 8-bit microcontroller low voltage LF PIC18LF2220-I/SP industrial sensor application PIC18LF2220 vs PIC18F2220 PIC18LF2220-I/SP drop-in replacement buy PIC18LF2220-I/SP online price what is the RAM size of PIC18LF2220 PIC18LF2220-I/SP SPDIP pinout 28 PIC18LF2220 battery powered nanoWatt PIC18LF2220-I/SP lead time stock

متعلقہ اجزاء اور اصطلاحات

Microchip Technology PIC18LF2220 PIC18LF2220-I/SP PIC18LF2221-I/SP PIC18LF2320-I/SP PIC18F2220-I/SP PIC18LF2220-I/SO 8-bit microcontroller PIC18 family Enhanced Harvard architecture nanoWatt technology SPDIP-28 SOIC-28 Flash memory EEPROM 10-bit A/D converter USART MSSP SPI I2C CCP PWM MPLAB X IDE XC8 compiler ICSP RoHS REACH I-grade industrial temperature
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