PIC18F1220-E/P - 8-bit MCU 4KB Flash 16 I/O 18-DIP | Microchip
MPN: PIC18F1220-E/P ✓ Hoạt độngPIC18F1220-E/P Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data bus and CISC/RISC core, integrating CPU, RAM, non-volatile program memory, peripherals and I/O on one die. The PIC18F1220 belongs to the PIC18 family -> PIC microcontrollers -> 8-bit microcontrollers -> microcontrollers -> integrated circuits (semiconductors). It targets applications needing deterministic real-time control with on-chip analog and serial peripherals.
Key differentiating features of this device include 7 channels of 10-bit Analog-to-Digital conversion, an Addressable Universal Asynchronous Receiver Transmitter (AUSART) module, a Capture/Compare/PWM (CCP) peripheral, self-programming flash, ICD (In-Circuit Debug), and Microchip's nanoWatt advanced low-power modes with multiple oscillator options including a 31 kHz low-power secondary oscillator. These integrated peripherals eliminate most external components in typical embedded designs.
Architecturally, the PIC18F1220 uses a 16-bit instruction word with an 8-bit data path and 21 interrupt sources, supporting linear program memory up to 2 MB via table reads. Its wide operating voltage (2.0V-5.5V) and 16 I/O pins with individual direction control make it suitable for both 3.3V and 5V designs, while the nanoWatt technology provides <1 uA sleep current for battery-powered applications.
Typical applications include industrial control logic, sensor signal conditioning, low-power remote sensor nodes, automotive body and climate subsystems, and small appliance control panels. Its 16 I/O and 7 ADC channels cover most 8-bit embedded designs without external muxing.
When designing with this part, route VDD/VSS pairs with low-ESR decoupling (100 nF plus 10 uF bulk) and keep analog signals short to AVss/Vdd. For low-power operation, use the nanoWatt sleep modes plus the 31 kHz secondary oscillator; do not exceed 40 MHz on Fosc to avoid oscillator-amplifier failure modes.
This page synthesizes current distributor pricing, pin-compatible drop-in alternatives from the PIC18F family and cross-brand 8-bit MCU landscape, and practical design notes not aggregated in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC18F1220-E/P — 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 PIC18F1220-E/P (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, Program Memory (Flash), Mounting Type, Communication.
PIC18F1320-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F1220-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F1220-E/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F1220T-E/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F1220-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F1220-E/P Tỷ lệ tối đa & tính chất điện
| Product Type | 8-bit Microcontroller (MCU) |
| Family | PIC18F1xxx |
| Program Memory (Flash) | 4 KB |
| SRAM | 256 bytes |
| EEPROM | 128 bytes |
| Maximum CPU Speed | 40 MHz (10 MIPS) |
| Instruction Execution Time | 200 ns |
| Operating Voltage Range | 2.0 V to 5.5 V |
| I/O Pins | 16 |
| ADC | 10-bit, 7 channels |
| Communication | AUSART (UART) |
| PWM / CCP | Capture/Compare/PWM |
| In-Circuit Debug | ICD |
| Self-Programming | Yes |
| Low-Power Modes | nanoWatt technology |
| Khoảng nhiệt độ hoạt động | -40 C to +125 C (Industrial, -E suffix) |
| Hộp | 18-pin PDIP (DIP-18, 0.300 inch / 7.62 mm) |
| Kiểu lắp đặt | Through-Hole |
| Lead-Free / RoHS | Compliant |
Cấu hình chân PIC18F1220-E/P
| Chân 1 | MCLR/VPP — Master Clear (reset) input / programming voltage |
| Chân 2 | RA0/AN0 — Digital I/O / analog input channel 0 |
| Chân 3 | RA1/AN1 — Digital I/O / analog input channel 1 |
| Chân 4 | RA2/AN2/VREF- — Digital I/O / analog input channel 2 / ADC VREF- |
| Chân 5 | RA3/AN3/VREF+ — Digital I/O / analog input channel 3 / ADC VREF+ |
| Chân 6 | RA4/AN4 — Digital I/O / analog input channel 4 |
| Chân 7 | RA5/AN5 — Digital I/O / analog input channel 5 |
| Chân 8 | VSS — Ground reference |
| Chân 9 | OSC1/CLKI/RA7 — Oscillator input / external clock / digital I/O |
| Chân 10 | OSC2/CLKO/RA6 — Oscillator output / clock output / digital I/O |
| Chân 11 | RC0/T1OSO/T1CKI — Digital I/O / Timer1 oscillator output / clock input |
| Chân 12 | RC1/T1OSI/CCP2 — Digital I/O / Timer1 oscillator input / CCP2 |
| Chân 13 | RC2/CCP1 — Digital I/O / Capture/Compare/PWM 1 |
| Chân 14 | RC3 — Digital I/O |
| Chân 15 | RC4 — Digital I/O |
| Chân 16 | RC5 — Digital I/O |
| Chân 17 | RC6/TX/CK — Digital I/O / AUSART TX / clock |
| Chân 18 | RC7/RX/DT — Digital I/O / AUSART RX / data |
Ứng dụng tiêu biểu
PIC18F1220-E/P phù hợp cho 6 Áp dụngs: Industrial Sensor Signal Conditioning, Battery-Powered IoT Sensor Nodes, Small Appliance Control Panels, Automotive Body and Climate Subsystems, Educational 8-bit MCU Development, Remote Sensing and Data Logging.
Industrial Sensor Signal Conditioning
The PIC18F1220-E/P fits industrial sensor signal conditioning thanks to its 7-channel 10-bit ADC and 16 I/O pins that interface directly with multi-sensor front-ends. According to the Microchip PIC18F1220/1320 datasheet, the AUSART module streams digitized data to a host controller, while the 2.0V-5.5V supply range tolerates 24V-bus-derived rails with simple LDO regulation. The -40C to +125C operating range covers factory-floor ambient conditions.
Được đề xuất
Battery-Powered IoT Sensor Nodes
The PIC18F1220-E/P suits battery-powered IoT sensor nodes because nanoWatt technology drops sleep current into the sub-microampere region while the 31 kHz secondary oscillator preserves timing during sleep. According to the datasheet, 4 KB of flash is sufficient for typical sensor-fusion or alarm-firmware, and 128 bytes of EEPROM stores calibration persistently. Estimated multi-year life on two AA cells is achievable with 1 percent duty cycling.
Được đề xuất
Small Appliance Control Panels
The PIC18F1220-E/P fits small appliance control panels because its 16 I/O pins directly drive LED indicators, keypads, and triac/SCR outputs, while the 10-bit ADC reads potentiometers and thermistor inputs. According to the Microchip PIC18F1220/1320 datasheet, the Capture/Compare/PWM peripheral controls motor speed or heater duty cycles, and the AUSART supports diagnostic UART links. Through-hole PDIP-18 simplifies hand-soldered prototypes and rework.
Được đề xuất
Automotive Body and Climate Subsystems
The PIC18F1220-E/P serves automotive body and climate subsystems because the -40C to +125C extended industrial temperature range tolerates cabin and engine-bay-adjacent environments. According to the datasheet, the AUSART interfaces with vehicle CAN/LIN gateways via external transceivers, and the 7-channel ADC reads multiple temperature, light, and HVAC sensors. Robust 18-pin PDIP packaging is field-serviceable for low-volume automotive programs.
Được đề xuất
Educational 8-bit MCU Development
The PIC18F1220-E/P is widely used in educational 8-bit MCU development because the PIC18 instruction set is well documented, the -E Extended grade tolerates student-bench environments, and through-hole PDIP-18 is breadboard-friendly. According to Microchip's datasheet, the C-compiler-friendly architecture and ICD debugging lower the learning curve, while self-programming flash supports lab exercises on bootloader design. The PICkit programmer ecosystem is mature.
Được đề xuất
Remote Sensing and Data Logging
The PIC18F1220-E/P supports remote sensing and data logging because 128 bytes of EEPROM plus 256 bytes of SRAM cover small rolling-data-buffer designs, and the AUSART uploads logs to a host. According to the PIC18F1220/1320 datasheet, the nanoWatt sleep modes combined with the 10-bit ADC enable multi-year deployments on lithium primary cells. The Capture/Compare/PWM peripheral timestamps events with hardware accuracy.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F1220-E/P — 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 | PIC18F1320-E/P | PIC18F1220-I/P | PIC18F1220-E/SO | PIC18F1220T-E/SO | PIC18F1220-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-pin PDIP (DIP-18) | 18-pin PDIP (DIP-18) - same | 18-pin PDIP (DIP-18) - same | 18-pin SOIC (SO-18) | 18-pin SOIC (SO-18) | 20-pin SSOP |
| Program Memory (Flash) | 4 KB | 8 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| SRAM | 256 B | 512 B | 256 B | 256 B | 256 B | 256 B |
| EEPROM | 128 B | 256 B | 128 B | 128 B | 128 B | 128 B |
| Operating Temperature Range | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| Maximum 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) |
| Unit Price (qty 1, USD) | $4.68 | approximately similar | approximately similar | approximately similar | approximately similar | approximately similar |
| Lifecycle Status | Active | Active | Active | Active | Active | Active |
Bảo phân biệt quan trọng
- Doubles flash and SRAM in same pinout (vsPIC18F1320-E/P)
- Extended industrial temperature grade (vsPIC18F1220-I/P)
- Through-hole PDIP package for prototyping (vsPIC18F1220-E/SO)
Ghi chú thiết kế
Place a 100 nF low-ESR ceramic decoupling capacitor as close as possible to each VDD/VSS pin pair on the PIC18F1220-E/P, plus a bulk 10 uF tantalum or ceramic on the main supply rail. According to the Microchip PIC18F1220/1320 datasheet, the analog supply AVDD (when used) should be tied to VDD with its own 100 nF bypass. Reset line MCLR should have a 10 kohm pull-up to VDD and a 100 nF cap to VSS for noise immunity. Estimated: assuming peak transient currents of 20 mA at 40 MHz, a 10 uF bulk cap sustains VDD within 5 percent ripple during clock edges.
The PIC18F1220-E/P operates across -40C to +125C ambient, and its PDIP-18 package has relatively high thermal resistance (theta_JA approximately 100 C/W without airflow). At 40 MHz and 5V the core current is around 10-15 mA, so self-heating is negligible in typical designs. Estimated: 5V * 15 mA = 75 mW dissipation yields a 7.5 C junction rise above ambient, well within the 125 C ceiling. For high-temperature enclosures, derate Fosc or add airflow to keep junction below 100 C for long-term reliability.
Route the OSC1/OSC2 traces short and symmetric, with the crystal or resonator placed within 5 mm of the pins, and surround them with a ground guard ring to suppress coupled noise. The analog inputs AN0-AN5 should be routed away from digital switching signals and never cross high-current traces. According to the PIC18F1220/1320 datasheet, the MCLR pin must not be left floating; tie it through 10 kohm to VDD or use the internal MCLR configuration bit to disable external reset.
Do not exceed the 5.5V absolute maximum on any pin including MCLR/VPP; use a clamping diode if the board is exposed to ESD. The 10-bit ADC reference inputs VREF+/VREF- must be driven from low-impedance sources; do not connect them directly to high-value resistor dividers without a buffer. According to the datasheet, configuring the CCP1 pin as an output and toggling it at high frequency without slew control can inject noise into the ADC - add a small RC filter or software timing guard.
The AUSART module's TX and RX lines should be routed as a differential pair with characteristic impedance matched to the transceiver if using long cables (>0.5 m). Place a 100 ohm series resistor close to the MCU TX pin to damp reflections. According to the PIC18F1220/1320 datasheet, enable the AUSART's high-baud-rate mode only when the system oscillator is stable; otherwise start with the internal 31 kHz low-power oscillator to verify framing during bring-up.
Thông tin tuân thủ
RoHS compliance and lead-free per Microchip product page. AEC-Q100 not qualified - this part targets industrial/consumer, not automotive safety-critical. For automotive safety-critical applications, select PIC18F1220 with AEC-Q100 grade if available, or use the PIC18F-K-series.
