PIC18F1320-I/SO - 8KB Flash 8-bit MCU 40MHz 18-SOIC | Microchip
MPN: PIC18F1320-I/SO ✓ Hoạt độngPIC18F1320-I/SO Tóm tắt
Key features include Flash program memory of 8 KB (4K x 16), 256 bytes of SRAM, 256 bytes of EEPROM, sixteen general-purpose I/O pins, a 10-bit A/D converter with seven channels, a master synchronous serial port (SSP) supporting SPI and I2C, an enhanced universal synchronous/asynchronous receiver-transmitter (EUSART), and six software-controlled nanoWatt power-managed modes that drop standby current to as low as 0.1 µA. The operating voltage spans 2.0 V to 5.5 V with a typical supply current under 1 mA at 4 MHz, and the part is specified for the industrial temperature range -40°C to +85°C.
The PIC18F1320 reaches 40 MHz maximum clock at 4.0-5.5 V with 10 MIPS throughput, while at lower voltages it operates with reduced clock speed. The 18-SOIC (Small-Outline Integrated Circuit) package offers a low-profile surface-mount footprint suitable for compact consumer and industrial layouts. The device supports in-circuit serial programming (ICSP) and in-circuit debugging via two pins, allowing field upgrades and code development without removing the part from the board.
Typical applications include low-power sensor nodes with A/D conditioning, battery-powered handheld instruments, white-goods and appliance control panels, automotive body and interior subsystems (after AEC-Q100 verification), USB/serial bridge converters, and industrial 24 V control logic (with appropriate front-end protection). The wide voltage range and nanoWatt technology make this part especially useful in energy-constrained designs that still need digital integration and mixed-signal capability.
When designing with this part, ensure all unused I/O pins are configured as outputs and tied to defined logic levels to minimize current draw in sleep modes. The A/D converter achieves its specified accuracy when the input source impedance is below 2.5 kΩ and the conversion clock period is between 0.7 µs and 25 µs; violating either limit degrades INL and DNL. Brown-out reset should be enabled in any application powered from a slowly rising rail to prevent code corruption during power transitions.
This page consolidates distributor pricing tiers, drop-in alternative parts, and practical design guidance that goes beyond the manufacturer datasheet. Engineers comparing PIC18F1320-I/SO against PIC16 family parts will find the PIC18's C-optimized instruction set, hardware multiplier, and 4-level deep interrupt stack materially simplify firmware development and real-time response.
Bộ thay thế dễ dàng lắp đặt cho PIC18F1320-I/SO — 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/SO (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, Operating Temperature, Power-Saving Modes, A/D Converter.
PIC18F1220-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F1320T-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18F1220-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F1220-H/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F1220-H/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F1230-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F1320-I/SO Tỷ lệ tối đa & tính chất điện
| Product Family | PIC18F |
| Core Architecture | PIC18 8-bit RISC (Harvard) |
| Core Size | 8-bit |
| Tần số xung maksimum | 40 MHz |
| Program Memory (Flash) | 8 KB (4K x 16) |
| RAM | 256 bytes |
| EEPROM | 256 bytes |
| I/O Pins | 16 |
| A/D Converter | 10-bit, 7 channels |
| Điện áp cung cấp | 2.0 V to 5.5 V |
| Khoảng nhiệt độ hoạt động | -40°C to +85°C (Industrial) |
| Hộp | 18-SOIC (0.295 inch / 7.5 mm width) |
| Kiểu lắp đặt | Surface Mount |
| Instruction Set Architecture | RISC with C compiler-optimized core |
| Power-Saving Modes | nanoWatt Technology, 6 software-controlled modes, 0.1 µA standby |
| Communication Peripherals | EUSART, SSP (SPI / I2C) |
| Timers | Timer0, Timer1 (16-bit), Timer2, Watchdog Timer |
| In-Circuit Programmability | ICSP / ICD support |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18F1320-I/SO
| Chân 1 | RA7/OSC1/CLKI — Port A bit 7 / external clock input / crystal oscillator input |
| Chân 2 | RA6/OSC2/CLKO — Port A bit 6 / crystal oscillator output / clock output |
| Chân 3 | MCLR/VPP/RE3 — Master clear reset / programming voltage / Port E bit 3 |
| Chân 4 | RA0/AN0 — Port A bit 0 / analog channel 0 |
| Chân 5 | RA1/AN1 — Port A bit 1 / analog channel 1 |
| Chân 6 | RA2/AN2 — Port A bit 2 / analog channel 2 |
| Chân 7 | RA3/AN3/VREF+ — Port A bit 3 / analog channel 3 / ADC positive reference |
| Chân 8 | RA4/AN4/T0CKI — Port A bit 4 / analog channel 4 / Timer0 clock input |
| Chân 9 | RA5/AN5/SS/LVDIN — Port A bit 5 / analog channel 5 / SPI slave select / LVD input |
| Chân 10 | VSS — Ground reference |
| Chân 11 | VDD — Positive supply voltage (2.0 V - 5.5 V) |
| Chân 12 | RB7/KBI3/PGD — Port B bit 7 / interrupt-on-change / ICSP data |
| Chân 13 | RB6/KBI2/PGC — Port B bit 6 / interrupt-on-change / ICSP clock |
| Chân 14 | RB5/KBI1 — Port B bit 5 / interrupt-on-change |
| Chân 15 | RB4/KBI0 — Port B bit 4 / interrupt-on-change |
| Chân 16 | RB3/CCP1/AN7 — Port B bit 3 / CCP1 PWM output / analog channel 7 |
| Chân 17 | RB2/INT2 — Port B bit 2 / external interrupt 2 |
| Chân 18 | RB1/INT1/AN6 — Port B bit 1 / external interrupt 1 / analog channel 6 |
Ứng dụng tiêu biểu
PIC18F1320-I/SO phù hợp cho 6 Áp dụngs: Battery-Powered Sensor Node, Consumer Appliance Control Panel, Industrial 24 V Control Logic, USB-to-Serial Bridge Appliance, Hobby Electronics and Robotics Hubs, Smart Lighting Control Module.
Battery-Powered Sensor Node
The PIC18F1320-I/SO suits battery-powered sensor nodes because its nanoWatt Technology drops standby current to 0.1 µA while keeping the part responsive in the 2.0-5.5 V single-cell range. The 10-bit 7-channel A/D pairs with internal sleep/wake logic so designers can duty-cycle between deep sleep and burst sampling to extend coin-cell life across years of unattended operation. A typical implementation pulls 2-4 µA averaged current when sampling temperature every 30 seconds, far lower than continuously-running MCUs.
Được đề xuất
Consumer Appliance Control Panel
The PIC18F1320-I/SO is well-matched to white-goods and small appliance control panels that demand a small MCU with EUSART for communication, PWM timers for motor drivers, and a robust 10-bit A/D for analog keypad or thermistor inputs. The 8 KB Flash comfortably fits state-machine FSMs, fault handlers, and indicator LED patterns. Industrial -40 to +85°C rating supports harsh environments such as dishwasher motor compartments or range hoods.
Được đề xuất
Industrial 24 V Control Logic
When treated with a regulator front-end, PIC18F1320-I/SO performs as a compact 8-bit controller for 24 V industrial logic nodes, accepting 24 V sensor inputs through opto-isolated edge conditioning and translating them to logic-level outputs. Its 40 MHz throughput handles simple protocol stack tasks and filter arithmetic, and the 18-SOIC package keeps the MCU footprint small enough for DIN-rail terminal blocks. Brown-out reset firmware idioms protect against voltage transients on long cables.
Được đề xuất
USB-to-Serial Bridge Appliance
The PIC18F1320-I/SO can host a CDC ACM USB-to-serial bridge firmware when paired with an external USB-UART bridge such as MCP2200, exposing the EUSART pins of the MCU as a virtual COM port on the host. The 8 KB Flash accommodates USB descriptor tables plus a small command-and-control interpreter, while the 256 B of EEPROM retains user-configurable settings such as baud rate and VID/PID overrides across power cycles.
Được đề xuất
Hobby Electronics and Robotics Hubs
Maker projects benefit from PIC18F1320-I/SO's 16 general-purpose I/O, ICSP debugging support, and exposed timer/PWM peripherals. The 18-SOIC is breadboard-friendly with an SO-to-DIP breakout board, allowing hobbyists to drive servos, read R/C inputs, and interface with sensors without external glue logic. The straightforward PIC18 architecture is widely documented in Microchip academic resources and the open-source XC8 toolchain.
Được đề xuất
Smart Lighting Control Module
PIC18F1320-I/SO drives low-side MOSFET-based lighting controllers and PWM dimming stages using its Timer2 and capture-compare peripheral, with the 7-channel A/D reading photocells and current-sense amplifiers to implement daylight harvesting. The wide 2.0-5.5 V supply window supports single-cell battery backup as well as regulated 5 V or 3.3 V rails. Sleep modes between dim commands keep quiescent dissipation low enough for always-on applications.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F1320-I/SO — 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 | PIC18F1220-I/SO | PIC18F1320T-I/SO | PIC18F1220-I/SS | PIC18F1220-H/SS | PIC18F1220-H/SO | PIC18F1230-I/P |
|---|---|---|---|---|---|---|---|
| Package | 18-SOIC | 18-SOIC - same | 18-SOIC - same (T&R) | 20-SSOP | 20-SSOP | 18-SOIC - same | 18-PDIP (through-hole) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 8 KB | 4 KB | 8 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| RAM | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B | 256 B |
| Maximum Frequency | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| ADC Resolution / Channels | 10-bit / 7 ch | 10-bit / 7 ch | 10-bit / 7 ch | 10-bit / 7 ch | 10-bit / 7 ch | 10-bit / 7 ch | 10-bit / 7 ch |
| Operating Voltage | 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 | 2.0 V to 5.5 V |
| Operating Temperature | -40°C to +85°C (Industrial) | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | Extended grade | Extended grade | -40°C to +85°C |
Bảo phân biệt quan trọng
- True 18-SOIC drop-in across the PIC18F1220 family (vsPIC18F1220-I/SO)
- Identical die in tape-and-reel packaging (vsPIC18F1320T-I/SO)
- PIC18 nanoWatt Technology for sub-microwatt standby (vsPIC18F1230-I/P)
Ghi chú thiết kế
Estimated: at 5 V VDD, 4 MHz clock and full peripheral activity, PIC18F1320 typically draws under 2 mA total supply current. For battery-powered designs, sleep the MCU using SLPEN and idle the oscillator, then wake on INT0 / KBI / WDT interrupts. nanoWatt Technology supports 0.1 µA standby current provided all I/O pins are defined as outputs and configured to known logic states (either driven or pulled) before sleeping.
Route the ICSP PGC and PGD lines (RB6/RB7) as short, parallel traces with a ground keeper, and keep them at least 1-2 mm away from other switching edges to preserve in-circuit debug integrity. Decouple VDD with a 0.1 µF ceramic capacitor within 5 mm of the supply pin, plus a bulk 1-10 µF tantalum or electrolytic capacitor if the source impedance is high. Place MCLR/VPP decoupling (typically 10 kΩ pull-up and 0.1 µF cap to ground) adjacent to the MCLR pin to ensure clean reset behavior.
Do not enable the A/D converter with an undefined reference in ADCON1 - this can cause unpredictable channel readings; configure all analog/digital pins in PCFG<3:0> at reset. Estimate the A/D acquisition time as (Tacq = 2 µs typical + (0.05 × (Rsource + Ric) × Cx) and verify with a real bench measurement before committing to a fixed sampling sequence. Brown-out reset must be enabled for applications with slow power ramps to prevent undefined execution while VDD is below the minimum operating threshold.
The 18-SOIC package has exposed ground pin 10 and supply pin 11 only - in multiple-layer boards, place a 5 mm flooded ground plane beneath the SOIC to provide a low-impedance return path for switching I/O. For EUSART at high baud rates (above 115200), keep the RB1/RB4 traces short and use 22-33 Ω series resistors if reflections show in the eye diagram. The 10-bit ADC achieves spec accuracy only when input source impedance is below 2.5 kΩ; otherwise use an op-amp buffer to condition high-impedance sensor sources.
Thông tin tuân thủ
RoHS compliant per Microchip product page; not AEC-Q100 qualified - for automotive designs use a separately AEC-Q100-validated PIC18 family member.
