PIC18F2320-E/SP - 8KB Flash 25MHz 8-bit MCU | Microchip
MPN: PIC18F2320-E/SP ✓ Hoạt độngPIC18F2320-E/SP Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, non-volatile storage, and programmable peripherals. The PIC18 family uses Microchip's enhanced Harvard RISC architecture with a 16-bit instruction word and an 8-bit data path, sitting in the broader hierarchy: 8-bit MCU -> microcontroller -> embedded controller -> semiconductor. PIC18 devices are C compiler-friendly (MPLAB XC8), widely used in cost-sensitive industrial and consumer designs where 5V tolerant I/O, deterministic interrupt latency, and long-life flash retention matter more than raw MHz.
Key specifications include a 25 MHz maximum clock (40 ns instruction cycle at 4x PLL), 10 channels of 10-bit ADC, two analog comparators, two Capture/Compare/PWM modules, a synchronous serial port configurable as SPI or I2C, an ICD (In-Circuit Debug) interface, and self-programming capability for boot-loader upgrades. The 'E' temperature grade designates the -40C to +125C extended industrial range, while the '/SP' suffix denotes the 28-pin 0.300-inch SPDIP tube package.
The architecture is built around a 16-bit enhanced instruction set with hardware multiplier, 32 kHz secondary oscillator for low-power Timer1 operation, and dual oscillator options for USB-friendly clocking on sibling parts. Internal peripherals are mapped through Microchip's standard peripheral libraries and are accessible via the MPLAB X IDE tool chain, ensuring broad third-party code support.
Typical applications include industrial control, sensor interface boards, low-end consumer appliances, motor control signal conditioning, and hobby/educational platforms where the PIC18 ecosystem, easy programming (ICSP), and long-term Microchip supply commitments outweigh the appeal of newer Cortex-M0 parts. Designers also use the PIC18F2320 as a co-processor in mixed-rail systems needing 5V I/O tolerance.
When designing with this device, budget the oscillator start-up timer (OST) and power-on reset (PWRT) delays in time-critical loops, and place the decoupling 100 nF capacitor within 5 mm of VDD. For high-noise environments, enable the hardware Watchdog Timer with a postscaler longer than the longest legitimate loop iteration.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC18F2320-E/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 PIC18F2320-E/SP (cùng hình factor và footprint) — khác nhau ở Package, ADC, Core Architecture, Mounting Type, Maximum CPU Speed.
PIC18F2320-I/SP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F2320-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F2420-I/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F2220-I/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F1320-I/P
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F1330-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC18F2320-E/SP Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC18 (8-bit enhanced Harvard RISC) |
| Program Memory (Flash) | 8 KB (4K x 16 words) |
| Data SRAM | 512 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Frequency | 25 MHz (10 MIPS, 16 MIPS peak) |
| Instruction Cycle Time | 200 ns (at 20 MHz); 160 ns (at 25 MHz) |
| Supply Voltage (VDD) | 4.2 V to 5.5 V (5V operation) |
| I/O Pins | 25 |
| ADC | 10 channels x 10-bit |
| Analog Comparators | 2 |
| Capture/Compare/PWM (CCP) | 2 modules |
| Serial Interfaces | 1x MSSP (SPI / I2C) |
| Timers | Timer0, Timer1, Timer2, Timer3 |
| Khoảng nhiệt độ hoạt động | -40C to +125C (E = extended grade) |
| Hộp | 28-pin SPDIP (0.300 inch, 7.62 mm) |
| Kiểu lắp đặt | Through-Hole |
| Cấp MSL | 1 (unlimited) |
Cấu hình chân PIC18F2320-E/SP
| Chân 1 | MCLR/VPP/RE3 — Master Clear (reset) input / 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- — Digital I/O RA2 / analog input AN2 / ADC VREF- |
| Chân 5 | RA3/AN3/VREF+ — Digital I/O RA3 / analog input AN3 / ADC VREF+ |
| Chân 6 | RA4/T0CKI — Digital I/O RA4 / Timer0 external clock input |
| Chân 7 | RA5/AN4/SS — Digital I/O RA5 / analog input AN4 / SPI slave select |
| Chân 8 | OSC1/RA7 — Crystal oscillator input / digital I/O RA7 |
| Chân 9 | OSC2/RA6 — Crystal oscillator output / digital I/O RA6 |
| Chân 10 | RC0/T1OSO/T1CKI — Digital I/O RC0 / Timer1 oscillator output / Timer1 clock input |
| Chân 11 | RC1/T1OSI/CCP2 — Digital I/O RC1 / Timer1 oscillator input / CCP2 output |
| Chân 12 | RC2/CCP1 — Digital I/O RC2 / CCP1 output |
| Chân 13 | RC3/SCK/SCL — Digital I/O RC3 / SPI clock / I2C clock |
| Chân 14 | RC4/SDI/SDA — Digital I/O RC4 / SPI data in / I2C data |
| Chân 15 | RC5/SDO — Digital I/O RC5 / SPI data out |
| Chân 16 | RC6/TX/CK — Digital I/O RC6 / USART TX / USART clock |
| Chân 17 | RC7/RX/DT — Digital I/O RC7 / USART RX / USART data |
| Chân 18 | VSS — Ground reference |
| Chân 19 | VDD — Positive supply (4.2V-5.5V) |
| Chân 20 | RB0/INT0/AN10 — Digital I/O RB0 / external interrupt 0 / analog input AN10 |
| Chân 21 | RB1/INT1 — Digital I/O RB1 / external interrupt 1 |
| Chân 22 | RB2/INT2 — Digital I/O RB2 / external interrupt 2 |
| Chân 23 | RB3/AN9/CCP2 — Digital I/O RB3 / analog input AN9 / CCP2 output |
| Chân 24 | RB4/AN8 — Digital I/O RB4 / analog input AN8 |
| Chân 25 | RB5/AN7 — Digital I/O RB5 / analog input AN7 |
| Chân 26 | RB6/AN6/PGC — Digital I/O RB6 / analog input AN6 / ICSP clock |
| Chân 27 | RB7/AN5/PGD — Digital I/O RB7 / analog input AN5 / ICSP data |
| Chân 28 | VSS — Ground reference |
Ứng dụng tiêu biểu
PIC18F2320-E/SP phù hợp cho 6 Áp dụngs: Industrial Sensor Interface Board, Low-End Consumer Appliance Controller, Motor Control Signal Conditioning, Hobby / Educational Development Platform, Mixed-Rail 5V/3.3V Co-Processor, Automotive Body Electronics Sub-Node.
Industrial Sensor Interface Board
The PIC18F2320-E/SP's 10-channel 10-bit ADC, 25 digital I/O, and 5V tolerant operation make it a strong fit for industrial sensor-interface boards reading 4-20 mA loops, thermistors, and digital encoders. Its 8 KB flash and 512 bytes SRAM are sufficient for table-driven calibration, while the 256-byte EEPROM stores non-volatile calibration constants across power cycles. The extended -40C to +125C grade covers outdoor and cabinet-mounted installations. Placed on the backplane near connector headers with proper RC filtering on analog inputs, the MCU aggregates multi-channel sensor data and forwards it over RS-485 or SPI to a host controller, replacing more expensive 16-bit parts in moderate-density designs.
Được đề xuất
Low-End Consumer Appliance Controller
The PIC18F2320-E/SP targets cost-sensitive 5V consumer appliances such as coffee machines, washing-machine sub-boards, and kitchen-hood controllers where deterministic control loops matter more than raw MHz. Its 2 CCP modules drive TRIAC phase-angle dimming or brushed-DC motor PWM, while the analog comparators implement over-current and zero-cross detection. The 8 KB flash comfortably hosts state-machine firmware with menu logic, and ICSP allows end-of-line programming through a 6-pin header. In a typical coffee-machine controller, the MCU reads a thermistor via ADC, switches a heating element via TRIAC+comparator feedback, and drives a 7-segment LED display through multiplexed I/O - a complete BOM centerpiece under $3.
Được đề xuất
Motor Control Signal Conditioning
The PIC18F2320-E/SP is well suited to motor-control auxiliary boards that handle signal conditioning rather than the main FOC loop. Its 2 CCP channels provide auxiliary PWM for cooling-fan speed control, while the 2 analog comparators detect back-EMF zero-cross events for sensorless commutation on small BLDC fans. The 25 MHz core runs interrupt-driven control loops at well below 1 us latency, and the 10-bit ADC at 100 ksps samples shunt currents or thermistors for over-current and thermal protection. Housed in a 28-pin SPDIP, the MCU fits on through-hole daughter-cards paired with a dedicated motor-control DSPIC on the main board.
Được đề xuất
Hobby / Educational Development Platform
The PIC18F2320-E/SP's through-hole 28-pin SPDIP package makes it breadboard-friendly for hobbyists, makers, and university embedded courses. The 25 MHz core and 8 KB flash support introductory C projects (XC8 compiler), while the ICSP pins (RB6/RB7) connect directly to a PICkit 4 programmer for student debugging. The 25 I/O lines comfortably drive LEDs, pushbuttons, character LCDs, and small 7-segment displays without external multiplexers. Course labs can exercise ADC reading of a potentiometer, PWM brightness control, and I2C EEPROM emulation - all on the same chip - making the PIC18F2320-E/SP an enduring teaching workhorse.
Được đề xuất
Mixed-Rail 5V/3.3V Co-Processor
The PIC18F2320-E/SP serves as an ideal 5V-tolerant co-processor next to a 3.3V Cortex-M host on mixed-rail boards. Its 5V-tolerant I/O eliminates level-shifters on a SPI or UART bridge to the 3.3V main MCU, while the 8 KB flash runs protocol-translation or housekeeping firmware. The 256-byte EEPROM stores user-configurable settings without external non-volatile memory. In a typical use case, the host runs the main application, and the PIC18 handles legacy 5V peripherals (industrial sensors, classic LCD modules, RS-232 transceivers) - a small BOM addition that preserves design flexibility.
Được đề xuất
Automotive Body Electronics Sub-Node
Although the PIC18F2320-E/SP lacks AEC-Q100 qualification, its extended -40C to +125C grade supports non-safety automotive body-electronics nodes such as ambient-light controllers, mirror-adjust modules, and interior LED drivers in commercial-vehicle cabins. The 10-bit ADC reads potentiometers and photodioders for smooth motor control, while the 2 CCP modules generate PWM dimming for LED strings. The MSSP SPI/I2C port attaches to the vehicle body-network transceiver for command reception. Designers target AEC-Q100-qualified PIC18 cousins for safety-critical applications but use this part for sub-systems where automotive certification is not required.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F2320-E/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 | PIC18F2420-I/SP | PIC18F2220-I/SP | PIC18F1320-I/P | PIC18F1330-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-pin SPDIP | 28-pin SPDIP - same | 28-pin SPDIP - same | 28-pin SPDIP - same | 28-pin PDIP - same | 28-pin SOIC - silicon compatible, different footprint |
| Program Memory (Flash) | 8 KB | 8 KB | 16 KB | 4 KB | 4 KB | 8 KB |
| Data SRAM | 512 bytes | 512 bytes | 768 bytes | 512 bytes | 256 bytes | 512 bytes |
| Data EEPROM | 256 bytes | 256 bytes | 256 bytes | 128 bytes | 256 bytes | 256 bytes |
| Maximum CPU Frequency | 25 MHz | 25 MHz | 25 MHz | 25 MHz | 20 MHz | 25 MHz |
| I/O Pins | 25 | 25 | 25 | 25 | 22 | 24 |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
Bảo phân biệt quan trọng
- Extended -40C to +125C operating temperature range (vsPIC18F2320-I/SP)
- 8 KB flash with 10 MIPS sustained performance (vsPIC18F2220-I/SP)
- Through-hole SPDIP package for breadboard prototyping (vsPIC18F2320-I/SO)
- 10-channel 10-bit ADC plus 2 comparators on-chip (vsPIC18F1320-I/P)
Ghi chú thiết kế
The PIC18F2320-E/SP operates from a single 4.2V-5.5V supply; place a 100 nF decoupling capacitor within 5 mm of VDD (pin 20 and pin 1) and a bulk 10 uF tantalum or ceramic at the board entry point. For mixed-rail designs, level-shift any 3.3V peripheral interface signals through a dedicated buffer (e.g., TXS0108E) rather than direct connection, because the PIC18 I/O is 5V tolerant only when VDD = 5V.
Estimated: at 25 MHz and full I/O toggling, the PIC18F2320-E/SP draws approximately 25 mA from VDD (about 125 mW). The 28-pin SPDIP has a theta_JA of approximately 70 C/W in still air, producing a junction-temperature rise of 9C above ambient - well within the +125C limit. Designers in enclosed high-temperature environments should still verify with a thermocouple on the package.
Route the ICSP clock and data lines (RB6/RB7) directly to a 6-pin programming header with no series resistors or capacitors; adding them blocks in-circuit programming. Place the crystal or resonator within 10 mm of OSC1/OSC2 (pins 9 and 10) and guard the traces with a grounded copper pour to minimize EMI. Keep analog-input traces short and routed away from digital switching lines to reduce ADC noise pickup.
Common pitfalls: (1) Forgetting to configure the A/D port configuration bits, leaving analog pins floating and causing ADC drift. (2) Failing to clear the RCON register on power-up, which masks subsequent brown-out resets. (3) Using the internal oscillator without enabling the PLL and expecting 25 MHz operation. (4) Driving MCLR low for longer than the extended-power-on-reset (PWRT) delay and missing the start-up window. Always read CONFIG bytes from the hex file before programming.
Thông tin tuân thủ
Lead-free per Microchip packaging standard; RoHS/REACH status not directly stated in the verified web data - [DATA_NEEDED] for confirmation. The E temperature grade is industrial-extended, but the part is not AEC-Q100 qualified for safety-critical automotive applications.
