PIC18F2220-I/SP - 8-bit 40MHz 4KB Flash MCU 28-SPDIP | Microchip
MPN: PIC18F2220-I/SP ✓ Hoạt độngPIC18F2220-I/SP Tóm tắt
A microcontroller (MCU) is a single-chip computer containing a CPU, memory (Flash/EEPROM/RAM), and programmable peripherals. The PIC18 family is an enhanced 8-bit Harvard-architecture MCU family widely used in cost-sensitive embedded control, with PIC18F2220 positioned at the small-memory end (4 KB Flash, 256 B EEPROM, 512 B RAM). Within the broader taxonomy: PIC18F2220 -> PIC18 -> PIC -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor.
The PIC18F2220 integrates 10 channels of 10-bit Analog-to-Digital conversion (ADC), two analog comparators, two Capture/Compare/PWM (CCP) modules, and a synchronous serial port configurable as either SPI or I2C. Additional peripherals include an EUSART, two 8-bit timers plus one 16-bit timer, a parallel slave port, self-programming Flash, an ICD debug interface, and nanoWatt power-managed modes that drop supply current below 1 uA in sleep.
Architecturally, the device uses a 16-bit wide instruction word with separate 16-bit instruction and 8-bit data buses, allowing the CPU to fetch an instruction and read data on the same cycle for sustained 40 MIPS throughput. Six power-managed modes, selectable in firmware, switch the system clock between the primary oscillator, the secondary 32 kHz oscillator, and the internal RC oscillator, enabling trade-offs between throughput and consumption. Brown-out reset, watchdog timer, and code-protect bits provide field robustness.
Typical applications include consumer appliance controls, low-cost sensor interfaces, battery-powered instrumentation, LED driver controllers, hobbyist and educational hardware, and industrial control nodes where 4 KB of Flash is sufficient. The wide operating voltage range (2.0 V to 5.5 V) supports both 3.3 V and 5 V rails. Designs requiring serial bootloaders or RS-232 bridging are common given the integrated EUSART.
When designing with the PIC18F2220, observe VDD/VSS decoupling of 0.1 uF at every supply pin and ensure the MCLR pin has the recommended 10 kohm pull-up. Use the ICD interface (PGC/PGD) for in-circuit debug during development. The 28-pin SPDIP footprint also enables through-hole prototyping on breadboards and perforated boards - an advantage over surface-mount-only MCU families.
This page synthesizes distributor pricing, drop-in same-package alternatives from Microchip's own portfolio and competitor cross-references, and practical design notes not found on any single source page. Information is current as of 2026-09-26.
Bộ thay thế dễ dàng lắp đặt cho PIC18F2220-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 PIC18F2220-I/SP (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, Timers, Maximum CPU Speed, Operating Temperature Range.
PIC18F2320-I/SP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F2220-E/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F2320-E/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F2420-I/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F2520-I/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F2220-I/SP Tỷ lệ tối đa & tính chất điện
| Product Type | 8-bit Microcontroller (MCU) |
| Core Architecture | PIC18 (Harvard, RISC) |
| Instruction Set Width | 16-bit |
| Maximum CPU Speed | 40 MHz (40 MIPS) |
| Program Memory (Flash) | 4 KB (2K x 16) |
| EEPROM | 256 bytes |
| Data RAM | 512 bytes |
| ADC | 10-bit, 10 channels |
| Analog Comparators | 2 |
| CCP Modules | 2 (Capture/Compare/PWM) |
| Timers | 2 x 8-bit + 1 x 16-bit |
| Serial Interfaces | 1 x SPI/I2C (MSSP) + 1 x EUSART (RS-232/485) |
| Parallel Slave Port | Yes |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| Supply Current (sleep, nanoWatt) | 0.28 uA typical (watchdog disabled) |
| Khoảng nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Hộp | 28-pin SPDIP (SP) |
| Kiểu lắp đặt | Through-Hole (DIP) |
| Cấp MSL | Not applicable (through-hole) |
| Trạng thái RoHS | Compliant |
| Lead-Free / Pb-Free | Yes |
| Debug Interface | ICD (ICSP via PGC/PGD) |
Cấu hình chân PIC18F2220-I/SP
| Chân 1 | MCLR/VPP/RE3 — Master Clear (reset) / 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-/CVREF — Digital I/O RA2 / Analog input AN2 / DAC ref-/Comparator ref |
| Chân 5 | RA3/AN3/VREF+ — Digital I/O RA3 / Analog input AN3 / DAC ref+ |
| Chân 6 | RA4/T0CKI/C1OUT — Digital I/O RA4 / Timer0 clock in / Comparator 1 output |
| Chân 7 | RA5/AN4/SS/HLVDIN/C2OUT — Digital I/O RA5 / Analog input AN4 / SPI SS / HLVD input / Comparator 2 output |
| Chân 8 | VSS — Ground reference |
| Chân 9 | OSC1/CLKI/RA7 — Crystal osc input / External clock in / Digital I/O RA7 |
| Chân 10 | OSC2/CLKO/RA6 — Crystal osc output / Clock out / Digital I/O RA6 |
| Chân 11 | RC0/T1OSO/T1CKI — Digital I/O RC0 / Timer1 osc out / Timer1 clock in |
| Chân 12 | RC1/T1OSI/CCP2 — Digital I/O RC1 / Timer1 osc in / CCP2 PWM out |
| Chân 13 | RC2/CCP1 — Digital I/O RC2 / CCP1 PWM out |
| Chân 14 | RC3/SCK/SCL — Digital I/O RC3 / SPI clock / I2C clock |
| Chân 15 | RC4/SDI/SDA — Digital I/O RC4 / SPI data in / I2C data |
| Chân 16 | RC5/SDO — Digital I/O RC5 / SPI data out |
| Chân 17 | RC6/TX/CK — Digital I/O RC6 / EUSART TX / EUSART clock |
| Chân 18 | RC7/RX/DT — Digital I/O RC7 / EUSART RX / EUSART data |
| Chân 19 | VSS — Ground reference |
| Chân 20 | VDD — Positive supply voltage |
| Chân 21 | RB0/AN12/INT0 — Digital I/O RB0 / Analog input AN12 / External int 0 |
| Chân 22 | RB1/AN10/INT1 — Digital I/O RB1 / Analog input AN10 / External int 1 |
| Chân 23 | RB2/AN8 — Digital I/O RB2 / Analog input AN8 |
| Chân 24 | RB3/AN9/CCP2 — Digital I/O RB3 / Analog input AN9 / CCP2 alternate |
| Chân 25 | RB4/AN11/KBI0 — Digital I/O RB4 / Analog input AN11 / Keyboard int 0 |
| Chân 26 | RB5/KBI1/PGM — Digital I/O RB5 / Keyboard int 1 / LVP programming |
| Chân 27 | RB6/KBI2/PGC — Digital I/O RB6 / Keyboard int 2 / ICD clock |
| Chân 28 | RB7/KBI3/PGD — Digital I/O RB7 / Keyboard int 3 / ICD data |
Ứng dụng tiêu biểu
PIC18F2220-I/SP phù hợp cho 7 Áp dụngs: Consumer Appliance Control, Low-Cost Sensor Interface Module, LED Driver / Lighting Controller, Hobbyist / Educational Hardware, Industrial Control Node / RS-485 Slave, Battery-Powered Instrumentation, Automotive Body Electronics (Non-Safety).
Consumer Appliance Control
The PIC18F2220-I/SP's 4 KB Flash, 512 B RAM, and 10-bit ADC are well matched to appliance control boards that read a few sensors and drive relays or triacs. Its 2.0 V to 5.5 V supply range supports both 3.3 V and 5 V designs without level shifters, and the nanoWatt sleep modes (<1 uA) keep standby power low in ENERGY STAR products. Two CCP modules generate PWM for motor speed control or heating element regulation. A typical toaster-oven controller uses ADC channels for temperature sensing and a CCP for bang-bang or PID heater PWM; the EUSART talks to a status display, and an EEPROM-backed setpoint is preserved across power cycles.
Được đề xuất
Low-Cost Sensor Interface Module
The PIC18F2220-I/SP's 10-channel 10-bit ADC, two comparators, and MSSP make it an excellent I2C/SPI sensor hub for low-cost sensor boards. With 256 B EEPROM for calibration constants and 4 KB Flash for linearization code, it can read temperature, humidity, and pressure sensors and publish readings over EUSART or MSSP. Power consumption in sleep mode (0.28 uA typical) supports battery-powered deployment for years from a single coin cell when duty-cycled. The EUSART pairs naturally with RS-485 transceivers for industrial sensor nodes; code-protect bits protect calibration IP.
Được đề xuất
LED Driver / Lighting Controller
For LED strips and DMX-style controllers, the PIC18F2220-I/SP provides two CCP modules for PWM dimming and an MSSP to receive SPI control data, with 4 KB Flash to store chase patterns and color tables. The 40 MHz throughput sustains software PWM at up to 16 kHz (above audible band) for multiple channels time-multiplexed by ISR. 2.0 V to 5.5 V operation suits single-cell Li-ion (with boost) and 5 V USB-power designs. The ICD interface simplifies firmware development for lighting animations and remote-control command parsing.
Được đề xuất
Hobbyist / Educational Hardware
The 28-SPDIP (SP) package through-hole footprint allows students to plug the PIC18F2220-I/SP directly into breadboards, simplifying prototyping in education settings. Combined with MPLAB X, XC8 compiler, and the PICKit 4 ICD, the part teaches interrupt-driven design, ADC sampling, PWM, and serial communication at low cost. 4 KB Flash is enough for a UART bootloader, ADC lab, and PWM lab in one program, while the parallel slave port allows teaching CPU-to-MCU data transfer. The C compiler-friendly instruction set and large PIC18 community resources reduce the student learning curve.
Được đề xuất
Industrial Control Node / RS-485 Slave
The PIC18F2220-I/SP's integrated EUSART and nanoWatt modes suit RS-485 slave nodes such as motor starters or solenoid drivers where standby power matters. Industrial temperature range (-40C to +85C) and code-protect bits are mandatory for field-deployed controllers. The 10-bit ADC reads 4-20 mA process signals via a burden resistor; CCP modules drive solid-state relays. Self-programming Flash allows remote firmware updates over the RS-485 link, eliminating field service trips. The 28-SPDIP package is also convenient for hand-soldered prototype installations.
Được đề xuất
Battery-Powered Instrumentation
When the PIC18F2220-I/SP duty-cycles between ADC readings and sleep, nanoWatt modes drop quiescent current to 0.28 uA typical. With a 3 V coin cell or 2x AA pack, an instrument that wakes every 30 seconds can run for years. The 256 B EEPROM stores calibration and user settings across battery swaps. ICD pins allow factory programming and in-system updates without removing the part. Industrial temperature range and code-protect bits are essential for handheld or remote instrumentation exposed to harsh environments.
Được đề xuất
Automotive Body Electronics (Non-Safety)
Although not AEC-Q100 qualified, the PIC18F2220-I/SP is widely used in non-safety automotive subsystems such as interior lighting, seat heaters, and accessory controllers via the industrial-grade temp range and self-programming Flash. The 2.0 V to 5.5 V range tolerates load-dump transients if external protection is added. PWM outputs drive LEDs and small motors; ADC channels monitor current shunts and temperature. For safety-critical ECUs, choose AEC-Q100-qualified PIC18F variants instead.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F2220-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 | PIC18F2320-I/SP | PIC18F2220-E/SP | PIC18F2320-E/SP | PIC18F2420-I/SP | PIC18F2520-I/SP |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP (SP) | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same | 28-SPDIP (SP) - same |
| Program Memory (Flash) | 4 KB | 8 KB | 4 KB | 8 KB | 16 KB | 32 KB |
| Data RAM | 512 B | 512 B | 512 B | 512 B | 768 B | 1536 B |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Maximum CPU Speed | 40 MHz / 40 MIPS | 40 MHz / 40 MIPS | 40 MHz / 40 MIPS | 40 MHz / 40 MIPS | 40 MHz / 40 MIPS | 40 MHz / 40 MIPS |
| Operating Temperature Range | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| ADC Channels / Resolution | 10 / 10-bit | 10 / 10-bit | 10 / 10-bit | 10 / 10-bit | 10 / 10-bit | 10 / 10-bit |
| CCP / PWM Modules | 2 | 2 | 2 | 2 | 2 (enhanced) | 2 (enhanced) |
| Supply Voltage (VDD) | 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 | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
Bảo phân biệt quan trọng
- Through-hole 28-SPDIP package - breadboard-friendly (vsPIC18F2220-I/SO)
- nanoWatt technology with 0.28 uA sleep typical (vsPIC18F2320-I/SP)
- Industrial -40C to +85C temperature range (vsPIC18F2220-E/SP)
Ghi chú thiết kế
Estimated: at VDD = 5 V and FOSC = 40 MHz, the PIC18F2220 typically draws ~12 mA active. Add 0.1 uF ceramic decoupling as close as possible to both VDD pins (pins 11 and 32 logic-equivalent - for 28-SPDIP pin 20 is the VDD). For nanoWatt sleep operation (watchdog disabled) the datasheet specifies 0.28 uA typical. Use the Sleep instruction and a wake source (INT, WDT, or peripheral interrupt) to drop quiescent current below 1 uA in battery-powered designs.
Place a 10 kohm pull-up on MCLR (pin 1) with a 100 nF decoupling capacitor in series for the standard Microchip MCLR reset circuit. Keep the PGC/PGD traces (pins 27/28) short and avoid routing them near high-frequency switching nodes; the ICD interface is sensitive to capacitive loading above 30 pF. Use a ground plane beneath the SPDIP footprint to provide thermal spreading; the 28-SPDIP is through-hole and benefits from via stitching around the perimeter for EMC robustness.
Do not connect the PGM (RB5/PGM, pin 26) function unintentionally - this pin enables low-voltage programming (LVP) by default and can cause inadvertent entry into programming mode if driven low at startup. Add a 10 kohm pull-up on RB5/PGM or disable LVP in CONFIG to avoid this. Also remember that the ICD pins (RB6/RB7) are not 5 V tolerant when used as digital inputs after disabling the ICD; configure TRISB accordingly before reading these pins as I/O.
Route the analog AGND/AVSS path back to a single-point ground tied to the main ground near the VDD decoupling capacitor. Isolate the AVREF reference pin from noisy digital traces (especially PWM outputs) to avoid ADC noise. The 10-bit ADC is sensitive to source impedance; place a 0.1 uF capacitor on each ADC input used for low-frequency measurement to provide a low-impedance charge reservoir for the sample-and-hold capacitor.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Lead-free (Pb-free). Industrial temperature range only; not AEC-Q100 qualified. For automotive designs select an AEC-Q100-qualified variant.
