PIC18LF2220-I/SO - 8-Bit 40MHz MCU, 4KB Flash | Microchip
부품 번호: PIC18LF2220-I/SO ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $3.62 | $3.62 |
| 10 | $3.34 | $33.40 |
| 100 | $2.95 | $295.00 |
| 500 | $2.62 | $1,310.00 |
| 1,000 | $2.34 | $2,340.00 |
PIC18LF2220-I/SO 개요
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash/ROM), volatile data memory (SRAM), digital I/O, and a rich set of on-chip peripherals such as timers, ADC, UART, and I2C/SPI. Within the broader semiconductor taxonomy, MCUs sit under microcontrollers -> embedded processors -> digital ICs. The PIC18 family is Microchip's high-performance 8-bit architecture, balancing deterministic interrupt latency with C-friendly instruction set, and has been a workhorse for cost-sensitive embedded products for over two decades.
Key features of the PIC18LF2220 include its 10-bit ADC (up to 10 channels), nanoWatt power management for sleep currents down to nanoampere levels, an enhanced 16-bit instruction set with 8-bit data path, and integrated EEPROM emulation. It supports In-Circuit Serial Programming (ICSP) and In-Circuit Debug (ICD), which is critical for engineers prototyping on prototype boards. The LF suffix indicates low-voltage operation; the non-LF PIC18F2220 is the 4.5 V-5.5 V variant.
Typical use cases include low-power sensor nodes, consumer appliance controllers, white-goods motor control, USB-to-UART bridges (when paired with an external PHY), and battery-powered handheld instruments. The wide 2.0 V-5.5 V range also makes it suitable for 2xAA/3xAA battery stacks and energy-harvesting front-ends.
Designers should pay attention to the 28-pin SOIC footprint selection - the I/SO suffix denotes industrial temperature grade (-40C to +85C) and SOIC package. Stack height and land pattern follow JEDEC SO-28W standards, making PCB layout straightforward.
This page synthesizes cross-distributor pricing, drop-in same-package alternatives, and design notes not aggregated on a single manufacturer or distributor page, providing an at-a-glance comparison for sourcing engineers.
드롭인 대체품: PIC18LF2220-I/SO — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC18LF2220-I/SO (동일 폼 팩터 및 풋프린트) — 차이점: Package, Communication, Core Architecture, ADC, Timers.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC18LF2221-I/SO
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC18LF2220T-I/SO
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC18LF2320-I/SO
✅ 드롭인✓ 재고 있음
$3.31 / 개
데이터시트 보기 →PIC18F2220-I/SO
✅ 드롭인✓ 재고 있음
$2.61 / 개
데이터시트 보기 →PIC18F2221-I/SO
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC18LF14K22-I/SO
✅ 드롭인✓ 재고 있음
$1.15 / 개
데이터시트 보기 →PIC18LF2220-I/SO 최대 정격 & 전기적 특성
| Core Architecture | PIC18 (8-bit RISC, enhanced) |
| CPU Speed | 40 MHz (10 MIPS) |
| Program Memory | 4 KB Flash (2K x 16) |
| Data SRAM | 512 bytes |
| Data EEPROM | 256 bytes (emulated) |
| Digital I/O Pins | 25 |
| ADC | 10-bit, up to 10 channels |
| Supply Voltage Range | 2.0 V to 5.5 V (LF series) |
| 동작 온도 | -40C to +85C (Industrial) |
| 패키지 | 28-SOIC (SO, 7.50 mm body) |
| 실장 유형 | Surface Mount |
| Timers | 4 (Timer0/1/2/3) |
| Communication | UART, I2C (MSSP), SPI (MSSP) |
| Power-Saving Modes | nanoWatt Technology (Sleep, Idle, RC Run) |
| Programming/Debug | ICSP (In-Circuit Serial Programming) + ICD |
| RoHS 상태 | Compliant |
PIC18LF2220-I/SO 핀 구성
| 핀 1 | MCLR/Vpp — Master Clear (Reset) input / programming voltage |
| 핀 2 | RA0/AN0 — Digital I/O / Analog input channel 0 |
| 핀 3 | RA1/AN1 — Digital I/O / Analog input channel 1 |
| 핀 4 | RA2/AN2 — Digital I/O / Analog input channel 2 |
| 핀 5 | RA3/AN3/Vref+ — Digital I/O / Analog input / ADC positive reference |
| 핀 6 | RA4/T0CKI — Digital I/O / Timer0 clock input |
| 핀 7 | RA5/SS/AN4 — Digital I/O / SPI Slave Select / Analog input |
| 핀 8 | Vss — Ground reference |
| 핀 9 | OSC1/CLKI/RA7 — Oscillator crystal input / external clock |
| 핀 10 | OSC2/CLKO/RA6 — Oscillator crystal output / clock output |
| 핀 11 | RC0/T1OSO/T1CKI — Digital I/O / Timer1 oscillator output |
| 핀 12 | RC1/T1OSI/CCP2 — Digital I/O / Timer1 oscillator input / CCP2 |
| 핀 13 | RC2/CCP1 — Digital I/O / CCP1 PWM output |
| 핀 14 | RC3/SCK/SCL — Digital I/O / SPI clock / I2C clock |
| 핀 15 | RC4/SDI/SDA — Digital I/O / SPI data in / I2C data |
| 핀 16 | RC5/SDO — Digital I/O / SPI data out |
| 핀 17 | RC6/TX/CK — Digital I/O / UART TX / clock |
| 핀 18 | RC7/RX/DT — Digital I/O / UART RX / data |
| 핀 19 | Vss — Ground reference |
| 핀 20 | Vdd — Positive supply voltage (2.0 V to 5.5 V) |
| 핀 21 | RB0/INT0 — Digital I/O / External interrupt 0 |
| 핀 22 | RB1/INT1 — Digital I/O / External interrupt 1 |
| 핀 23 | RB2/INT2 — Digital I/O / External interrupt 2 |
| 핀 24 | RB3/CCP2 — Digital I/O / CCP2 PWM |
| 핀 25 | RB4 — Digital I/O with interrupt-on-change |
| 핀 26 | RB5 — Digital I/O with interrupt-on-change |
| 핀 27 | RB6/PGC — Digital I/O / ICSP clock (programming/debug) |
| 핀 28 | RB7/PGD — Digital I/O / ICSP data (programming/debug) |
일반적인 애플리케이션
PIC18LF2220-I/SO 적합 용도: 6 애플리케이션s: Battery-Powered Sensor Nodes, Consumer Appliance Control Panels, USB-to-UART Bridge Dongles, Industrial Process Monitoring, Educational & Hobbyist Embedded Boards, LED Lighting & PWM Dimming Control.
Battery-Powered Sensor Nodes
The PIC18LF2220-I/SO fits battery-powered sensor nodes because its LF low-voltage core operates from 2.0 V to 5.5 V, supporting direct connection to 2-cell AA alkaline (3 V) or 3-cell NiMH (3.6 V) battery stacks without any boost converter. With nanoWatt Technology sleep current below 1 uA and 10 MIPS performance at 40 MHz, the MCU can wake on a timer interrupt, read a sensor via the 10-bit ADC, transmit, and return to sleep, achieving multi-year battery life on a 2000 mAh cell. The 4 KB Flash accommodates a small RTOS or state machine plus BLE/Zigbee application code.
추천
Consumer Appliance Control Panels
The PIC18LF2220-I/SO is well-suited for consumer appliance front-panel controllers such as washing machines, microwave ovens, and dishwashers. Its 25 I/O pins directly drive 7-segment displays, keypads, LED indicators, and triac/MOSFET gate drivers for motor or heater loads, eliminating external I/O expanders. The 40 MHz CPU speed and 10-bit ADC handle rotary encoder inputs, temperature sensing (NTC thermistors), and capacitive touch via software libraries, while the 2.0-5.5 V range supports 3.3 V or 5 V designs.
추천
USB-to-UART Bridge Dongles
The PIC18LF2220-I/SO can serve as the MCU in low-cost USB-to-UART converter dongles, paired with an external USB transceiver. The hardware UART (EUSART) provides reliable asynchronous serial communication up to 115.2 kbaud or higher, while the 2.0-5.5 V supply can be powered directly from USB 5 V or a 3.3 V LDO. With 4 KB Flash, the MCU has enough room for USB CDC class firmware or vendor-specific protocols, and ICSP allows in-field firmware updates over the USB lines.
추천
Industrial Process Monitoring
In industrial 4-20 mA loop sensors, PLC input modules, and remote telemetry units, the PIC18LF2220-I/SO serves as a low-cost signal conditioner. The 10-bit ADC with up to 10 channels multiplexes thermocouple, RTD, pressure transducer, and 4-20 mA shunt inputs, while the hardware I2C/SPI peripherals communicate with external EEPROM for data logging. The industrial -40C to +85C temperature grade covers most factory environments, and the 28-SOIC package survives conformal coating and automated assembly.
추천
Educational & Hobbyist Embedded Boards
The PIC18LF2220-I/SO is widely used in hobbyist kits, PICKit-compatible development boards, and university embedded systems courses. Its 28-SOIC package fits the popular 28-pin PIC development board form factor, and Microchip's MPLAB X IDE + XC8 compiler + PICKit 4 programmer toolchain provides free academic access. The PIC18 architecture's deterministic interrupts and Harvard memory model teach core MCU concepts (timers, ADC, PWM) at a price point suitable for student budgets.
추천
LED Lighting & PWM Dimming Control
The PIC18LF2220-I/SO drives multi-channel LED lighting systems using the CCP/ECCP module for hardware PWM at up to 40 MHz, generating flicker-free dimming curves from 0% to 100% duty cycle. Each I/O pin can source/sink 25 mA, sufficient to drive logic-level MOSFETs directly for high-power LED strings. The 25 I/O pins support RGBW (4 channels) plus status indicators and button inputs. nanoWatt sleep enables standby power below 100 uA for ENERGY STAR compliance.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC18LF2220-I/SO — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC18LF2221-I/SO | PIC18LF2220T-I/SO | PIC18LF2320-I/SO | PIC18F2220-I/SO | PIC18F2221-I/SO | PIC18LF14K22-I/SO |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same | 28-SOIC - same |
| Supply Voltage Range | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 1.8 V to 3.6 V |
| Flash Memory | 4 KB | 8 KB | 4 KB | 8 KB | 4 KB | 8 KB | 16 KB |
| SRAM | 512 B | 512 B | 512 B | 512 B | 512 B | 512 B | 512 B |
| CPU Speed | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS | 64 MHz / 16 MIPS |
| I/O Pins | 25 | 25 | 25 | 25 | 25 | 25 | 24 |
| ADC | 10-bit, 10 channels | 10-bit, 10 channels | 10-bit, 10 channels | 10-bit, 10 channels | 10-bit, 10 channels | 10-bit, 10 channels | 10-bit, 11 channels |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
주요 차별점
- Lowest-voltage PIC18 in the family (2.0 V start, vs 4.5 V on non-LF) (vs PIC18F2220-I/SO)
- Direct upgrade path to 8 KB Flash without PCB change (vs PIC18LF2221-I/SO)
- Modern peripheral set vs older PIC16 baseline (vs PIC18LF14K22-I/SO)
설계 노트
The PIC18LF2220-I/SO nanoWatt Technology supports multiple power-saving modes: Sleep (CPU off, peripherals off, <1 uA typical), Idle (CPU off, peripherals on, ~5.8 uA typical), and RC Run modes. For battery-powered designs, leverage Sleep with Watchdog Timer wake-up every few seconds to read sensors - estimated battery life on a 2000 mAh AA cell exceeds 5 years for a 0.1% duty-cycle sensor read. Always enable the Brown-out Reset (BOR) module via CONFIG register to prevent Flash corruption during voltage dips.
The 28-SOIC package follows JEDEC SO-28W (7.50 mm body width). Use a land pattern with 1.27 mm pitch, pad width 0.6 mm, and pad length 1.8 mm for reliable solder fillets. Place a 100 nF decoupling capacitor as close as possible to pin 20 (Vdd), with a second 10 uF bulk capacitor within 5 mm. Route the ICSP pins (RB6/PGC, RB7/PGD, MCLR/Vpp) to a 5-pin header on the board edge for programming/debug access without disassembling the product.
Do not confuse PIC18LF2220 (2.0-5.5 V) with PIC18F2220 (4.5-5.5 V) - using the non-LF variant below 4.5 V causes Flash programming failures and erratic ADC readings. When migrating firmware between the two, verify CONFIG register settings (especially LVP - Low-Voltage Programming) - LVP must match the toolchain's ICSP voltage levels. Always read the device ID at startup (0x1050 for LF2220, 0x1060 for LF2221) to confirm the expected die before executing peripheral-specific code.
규정 준수 정보
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - this is an industrial-grade part (-40C to +85C). For automotive applications, Microchip offers separate PIC18LF2220 automotive-grade variants on request.
