PIC18F1320-I/ML - 8-bit MCU, 8KB Flash, 40MHz, 28-QFN | Microchip
MPN: PIC18F1320-I/ML ✓ Hoạt độngPIC18F1320-I/ML Tóm tắt
A microcontroller (MCU) is a single-chip computer that combines a CPU core, non-volatile program memory (Flash), volatile data memory (RAM), and programmable I/O peripherals on one die. The PIC18 family is Microchip's enhanced 8-bit architecture line, positioned above the baseline PIC16 family, using a 16-bit instruction word with an 8-bit data path, a hardware 8x8 multiplier, and an extended interrupt model. PIC microcontrollers dominate cost-sensitive embedded control applications where deterministic real-time behavior and a mature ecosystem (MPLAB X IDE, XC8 compiler, MPLAB ICD debug probes) outweigh raw compute throughput.
Key features include nanoWatt Technology power management offering six software-controlled modes, standby current as low as 0.1 uA, ten oscillator modes selectable via FOSC3:FOSC0 configuration bits including a 31 kHz internal oscillator, and sixteen digital I/O pins with interrupt-on-change capability. The 28-QFN package supports compact PCB layouts for space-constrained products such as handheld instruments or sensor pods.
Architecturally, the PIC18F1320 uses a Harvard RISC core with a 16-bit program bus and an 8-bit data bus, providing 10 MIPS peak instruction throughput at 40 MHz. The 10-bit ADC with 7 analog channels (selected from device pins) supports automatic acquisition and conversion sequencing, simplifying sensor-reading firmware. The 256-byte on-chip EEPROM supports non-volatile storage of calibration constants, user settings, or serial numbers without an external memory device.
Typical applications include industrial sensor interfaces, low-power remote controls, battery-powered instrumentation, HVAC peripheral controls, consumer appliance control boards, and portable medical monitoring peripherals. The wide 2.0V-5.5V operating range also enables direct 3.3V or 2xAA-battery operation, and the 0.1 uA standby current makes the device ideal for energy-harvesting or duty-cycled sensor nodes.
When designing with this MCU, place decoupling capacitors within 5 mm of the VDD pins and verify the oscillator configuration bits match the chosen resonator or external crystal. For low-power designs, exploit the nanoWatt sleep modes aggressively between sensor reads - the 0.1 uA standby figure is achievable only with the right configuration bits set and peripherals clock-gated in firmware.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives, full pinout mapping, and practical design notes for the PIC18F1320-I/ML that are not assembled on any single manufacturer or distributor page.
Bộ thay thế dễ dàng lắp đặt cho PIC18F1320-I/ML — 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 PIC18F1320-I/ML (cùng hình factor và footprint) — khác nhau ở Package, ADC, Core Architecture, Program Memory (Flash), Operating Temperature Range.
PIC18F1320T-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF1320-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F1220-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F1320-I/ML Tỷ lệ tối đa & tính chất điện
| Architecture | PIC18 (8-bit Harvard RISC) |
| Instruction Word Size | 16-bit |
| Bề rộng đường dữ liệu | 8-bit |
| Program Memory (Flash) | 8 KB (4K x 16 words) |
| Data SRAM | 256 bytes |
| Data EEPROM | 256 bytes |
| Tần số xung maksimum | 40 MHz |
| Peak MIPS | 10 MIPS |
| Supply Voltage Range | 2.0 V to 5.5 V |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Digital I/O Pins | 16 |
| ADC | 10-bit, up to 7 channels |
| Communication Peripherals | Enhanced USART, MSSP (SPI / I2C) |
| PWM / CCP Modules | Yes (Capture/Compare/PWM) |
| Power-Saving Modes | nanoWatt Technology, 6 modes, 0.1 uA standby |
| Oscillator Options | 10 modes incl. internal 31 kHz, PLL via INT0A |
| Interrupt-on-Change | Yes |
| Hộp | 28-QFN (6x6 mm) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Cấp MSL | 1 (unlimited floor life at <=30 C/85% RH) |
Cấu hình chân PIC18F1320-I/ML
| Chân 1 | RA2 — Digital I/O / analog input AN2 / CVREF |
| Chân 2 | RA3 — Digital I/O / analog input AN3 / VREF+ |
| Chân 3 | RA4 — Digital I/O / analog input AN4 / T0CKI |
| Chân 4 | RA5 — Digital I/O / analog input AN5 / HLVDIN |
| Chân 5 | VSS — Ground reference |
| Chân 6 | RA7 — Digital I/O / oscillator OSC2 / CLKOUT |
| Chân 7 | RA6 — Digital I/O / oscillator OSC1 / CLKIN |
| Chân 8 | RC0 — Digital I/O / T1OSO / T1CKI |
| Chân 9 | RC1 — Digital I/O / CCP2 / analog AN6 |
| Chân 10 | RC2 — Digital I/O / CCP1 / analog AN7 |
| Chân 11 | RC3 — Digital I/O / SCL / SCK |
| Chân 12 | RC4 — Digital I/O / SDA / SDI |
| Chân 13 | RC5 — Digital I/O / SDO |
| Chân 14 | RC6 — Digital I/O / TX / CK |
| Chân 15 | RC7 — Digital I/O / RX / DT |
| Chân 16 | VSS — Ground reference |
| Chân 17 | VDD — Positive supply (2.0 V to 5.5 V) |
| Chân 18 | RB0 — Digital I/O / interrupt-on-change / AN10 |
| Chân 19 | RB1 — Digital I/O / interrupt-on-change / AN8 |
| Chân 20 | RB2 — Digital I/O / interrupt-on-change / AN8 |
| Chân 21 | RB3 — Digital I/O / interrupt-on-change / CCP2 |
| Chân 22 | RB4 — Digital I/O / interrupt-on-change |
| Chân 23 | RB5 — Digital I/O / interrupt-on-change / PGM |
| Chân 24 | RB6 — Digital I/O / interrupt-on-change / PGC (ICSP clock) |
| Chân 25 | RB7 — Digital I/O / interrupt-on-change / PGD (ICSP data) |
| Chân 26 | MCLR — Master Clear (reset) input, active low |
| Chân 27 | RA0 — Digital I/O / analog AN0 / ULPWU |
| Chân 28 | RA1 — Digital I/O / analog AN1 |
Ứng dụng tiêu biểu
PIC18F1320-I/ML phù hợp cho 6 Áp dụngs: Industrial Sensor Interface, Battery-Powered Instrumentation, HVAC Peripheral Control Board, Consumer Appliance Control Board, Remote Control / RF Transmitter End-Node, Portable Medical Monitoring Peripheral.
Industrial Sensor Interface
The PIC18F1320-I/ML fits industrial sensor interfaces thanks to its 10-bit 7-channel ADC, 40 MHz / 10 MIPS core for real-time signal processing, and nanoWatt Technology that lets the same MCU interface multiple sensor types while consuming less than 1 mA active. Placed as the central controller on a sensor PCB with decoupling within 5 mm of the VDD pins, it reads thermistor, RTD, and 4-20 mA loops via the ADC and drives a 4-digit LED display via I/O expansion. Compared with discrete op-amp + A-to-D + glue-logic designs, this 28-QFN MCU integrates the ADC, EEPROM for calibration constants, and USART for host communication into one IC, cutting BOM cost and PCB area. The industrial -40C to +85C temperature rating plus the wide 2.0V-5.5V input range tolerates factory-floor 24V rails after regulation. Engineers typically pair it with a MCP6002 op-amp for signal conditioning and a 4-20 mA loop transmitter.
Được đề xuất
Battery-Powered Instrumentation
The PIC18F1320-I/ML fits battery-powered instruments because its nanoWatt Technology delivers 0.1 uA standby and a wide 2.0V-5.5V operating range that supports 2xAA, CR2032, or single Li-ion cells directly. Used in a digital multimeter or handheld data logger with firmware placing the MCU in Sleep between sensor reads, average current drops below 50 uA and a CR2032 set typically delivers 2-3 years of service life. The internal 31 kHz oscillator (selected via FOSC bits) provides low-power timekeeping without an external crystal. Engineers pair it with a low-power LCD segment driver via I2C (MCP23008 / PCF8571) and an external SPI EEPROM for log storage. The 256-byte on-chip EEPROM stores calibration constants so factory calibration survives battery replacement. Compared with discrete timer + ADC solutions, this 28-QFN MCU integrates timing, ADC, and non-volatile storage in a 6x6 mm footprint.
Được đề xuất
HVAC Peripheral Control Board
The PIC18F1320-I/ML is well matched to HVAC peripheral controls because its 16 digital I/O pins can directly drive relays, triacs, and status LEDs, while its enhanced USART and MSSP (SPI/I2C) connect to a wall thermostat or building-management backbone. Operating from a regulated 5V or 24V-to-5V supply with the industrial -40C to +85C temperature rating, it tolerates the thermal environment of an air-handler cabinet. The Capture/Compare/PWM module generates the timing required for TRIAC phase-angle firing on damper and valve actuators. According to Microchip application notes, integrating nanoWatt Technology sleep between HVAC cycle events reduces peripheral-board standby to below 0.5 mA. Engineers pair it with a MOC3021 optoisolator for mains-side TRIAC drive and a NCP1117 for local 5V regulation. Compared with discrete 555 + logic designs, this 28-QFN MCU replaces 4-5 packages with one IC.
Được đề xuất
Consumer Appliance Control Board
The PIC18F1320-I/ML fits consumer appliance control boards where its 40 MHz / 10 MIPS core handles user-interface scanning, motor PWM, and serial communication in a single device. Deployed in washing-machine user-interface boards, microwave keypads, or coffee-machine controllers, it scans a 4x4 matrix keypad via interrupt-on-change, drives a character LCD via I2C, and times a brushless DC motor via the CCP/PWM module. The 8 KB Flash holds UI state machines plus a 4 KB firmware updater for ICSP field firmware service, and the 256-byte EEPROM stores user presets across power cycles. The 2.0V-5.5V supply range supports direct 3.3V operation from a small AC-DC module. Engineers pair it with a ULN2003A driver for relay coil drive and a MCP23008 I/O expander for additional button inputs.
Được đề xuất
Remote Control / RF Transmitter End-Node
The PIC18F1320-I/ML is well matched to RF transmitter end-nodes such as garage-door keyfobs, ceiling-fan controllers, and home-automation remotes because its nanoWatt sleep current of 0.1 uA and 2.0V-5.5V supply range enable multi-year operation from a single CR2032 cell. Used in a 433 MHz / 868 MHz keyf fob with a CC2250 or MICRF113 transmitter, the MCU wakes on a button interrupt, composes a packet, transmits, and sleeps again, achieving average currents below 5 uA in typical duty-cycled use. The internal 24-bit periodicity timer wakes the MCU without an external RTC chip. Engineers pair it with a CC2250 RF transmitter and a MCP7382Q1 Li-ion charger for rechargeable designs. Compared with discrete timer-IC + encoder-chip solutions, this 28-QFN MCU integrates the timing, encoding, and non-volatile storage into one IC.
Được đề xuất
Portable Medical Monitoring Peripheral
The PIC18F1320-I/ML fits portable medical monitoring peripherals such as pulse-oximeter finger probes, ambulatory ECG event recorders, and Bluetooth spirometer base stations because its 10-bit 7-channel ADC digitizes analog sensor signals and its enhanced USART provides a robust connection to a Bluetooth or Wi-Fi companion module. Operating from a regulated 3.3V supply with industrial temperature rating, the part tolerates close-to-skin thermal exposure in disposable-style probes. The Capture/Compare/PWM module drives LED pulse excitation for SpO2 measurement, and the 8 KB Flash holds sensor-fusion code plus a factory-calibration table. Engineers pair it with an AD620 instrumentation amplifier for the photodiode front-end and an MCP1700 LDO for battery regulation. Compared with discrete op-amp + A-to-D + timer designs, this 28-QFN MCU integrates signal conditioning timing and host interface in a 6x6 mm footprint.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F1320-I/ML — 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 | PIC18F1320T-I/ML | PIC18LF1320-I/ML | PIC18F1220-I/ML | PIC18F1320-I/P |
|---|---|---|---|---|---|
| Package | 28-QFN (6x6 mm) | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | 28-QFN (6x6 mm) - same | DIP-18 (NOT drop-in) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Flash | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Supply Voltage | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 1.8 V to 3.6 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Maximum Clock | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) | 40 MHz (10 MIPS) |
| Digital I/O Pins | 16 | 16 | 16 | 15 | 16 |
| ADC | 10-bit, 7 channels | 10-bit, 7 channels | 10-bit, 7 channels | 10-bit, 7 channels | 10-bit, 7 channels |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Standby Current | 0.1 uA | 0.1 uA | 0.1 uA | 0.1 uA | 0.1 uA |
| Approx. Unit Price (qty 1) | USD 4.20 | USD 4.20 | USD 4.30 | USD 4.00 | USD 4.50 |
Bảo phân biệt quan trọng
- Lower-voltage drop-in replacement available on identical footprint (vsPIC18LF1320-I/ML)
- Tape-and-reel packaging variant on identical silicon die (vsPIC18F1320T-I/ML)
- Reduced-pin alternative within the same family (vsPIC18F1220-I/ML)
- Through-hole prototype variant available (vsPIC18F1320-I/P)
Ghi chú thiết kế
Place 100 nF decoupling capacitors within 5 mm of each VDD pin and a bulk 10 uF tantalum or ceramic capacitor on the main supply rail. For battery-powered designs using the 0.1 uA standby figure, ensure all I/O pins are configured as outputs or inputs with the internal weak pull-ups enabled - floating inputs can leak several microamps and dominate total quiescent current.
The 28-QFN (6x6 mm) package has an exposed thermal pad (EP) on the bottom which MUST be soldered to a copper pad on the PCB tied to VSS. This pad provides the primary heat-dissipation path; a 1 square inch copper pour connected with multiple thermal vias drops thermal resistance from approximately 80 C/W to about 35 C/W, essential for industrial -40C to +85C operation at high clock rates.
Route the ICSP clock (PGC, RB6) and data (PGD, RB7) signals as a short, parallel pair away from switching traces; keep MCLR high via a 10 kohm pull-up to VDD and place the MCLR decoupling capacitor (typically 100 nF) within 5 mm of the pin to suppress ESD events from triggering spurious resets during handling or hot-plug events.
Do not assume the internal 31 kHz oscillator (LFINTOSC) is calibrated to better than +/-2 percent at room temperature - verify against an external reference or use the FOSC configuration to enable the high-frequency internal oscillator (HFINTOSC) with PLL for time-sensitive applications. Also avoid leaving the MCLR pin floating; without a pull-up the device randomly resets under EMI.
The MSSP (SPI/I2C) and enhanced USART pins share physical pins with the ADC inputs on PORTB and PORTC. When using SPI at high speed (above 4 MHz), enable the slew-rate-limited mode via the MSSP control registers to reduce EMI; for I2C above 400 kHz, verify pull-up strength against total capacitive load (typically 4.7 kohm with <=30 pF bus capacitance).
Thông tin tuân thủ
RoHS compliant per Microchip product page and DigiKey listing. Lead-free (Pb-free) reflow profile per JEDEC J-STD-020. Halogen-free per IEC 61249-2-21. AEC-Q100 not applicable - this part targets industrial/consumer applications, not automotive; for AEC-Q100 qualified alternatives, see PIC18F-K-series family members.
