PIC18F45J10-I/P - 8-Bit 40MHz 32KB Flash MCU | Microchip
MPN: PIC18F45J10-I/P ✓ Hoạt độngPIC18F45J10-I/P Tóm tắt
An 8-bit microcontroller (MCU) is a programmable integrated circuit that executes instructions 8 bits wide, balances code density with deterministic real-time behavior, and integrates CPU core, Flash, RAM, peripherals, and I/O on one die. The PIC18 family belongs to Microchip's high-performance RISC MCU line within the broader microcontroller -> embedded controller -> semiconductor taxonomy. 8-bit MCUs remain dominant in cost-sensitive, low-power, and I/O-rich designs where 32-bit performance is unnecessary.
Key features of the PIC18F45J10-I/P include nanoWatt technology for power-managed sleep modes, in-circuit serial programming (ICSP), a 10-bit ADC, multiple timers, PWM channels, and a wide operating voltage range typical of the J-series family. The 40-pin PDIP package offers through-hole ease-of-prototyping and broad breadboard compatibility for engineers and hobbyists.
Architecturally, the PIC18F45J10 uses an 8-bit modified Harvard RISC core with single-cycle instruction execution at 40 MHz (10 MIPS). The Flash-based program memory supports field upgrades via ICSP, and emulated EEPROM in software reduces bill of materials. The J-series internal architecture trades 5 V tolerance for lower-voltage optimized operation, making it suitable for 3.3 V designs.
Typical applications include consumer appliances, low-cost industrial controllers, sensor interface boards, automotive body modules, and educational/hobbyist platforms. The combination of nanoWatt power management and LIN-capable USART also targets LIN-connected automotive sub-modules and small mechatronic subsystems.
When designing with this MCU, ensure the supply rail stays within the J-series voltage window and that high-voltage (5 V) signals are level-shifted to avoid latch-up. Through-hole DIP-40 footprints simplify rework and prototype iteration; for production, the same silicon is available in TQFP/QFN packages for SMT.
This page synthesizes distributor pricing, drop-in package-compatible alternatives, and practical design notes not collated in the manufacturer datasheet, giving engineers a faster path to part selection for 8-bit embedded designs.
Bộ thay thế dễ dàng lắp đặt cho PIC18F45J10-I/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 PIC18F45J10-I/P (cùng hình factor và footprint) — khác nhau ở ADC, Package, Communication Interfaces, Core, Data RAM.
PIC18F46J13-I/P
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F44J10-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F45J10-I/PREL
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F45J10-I/SP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F45J10-I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F45J10-I/P Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit RISC (PIC18) |
| Program Memory Type | Flash |
| Program Memory Size | 32 KB (16K x 16) |
| RAM Size | 1 KB |
| EEPROM | Emulated |
| Maximum CPU Frequency | 40 MHz |
| Operating Voltage | 2.0 V to 3.6 V (J-series 3.3 V typical) |
| Hộp | 40-pin PDIP (DIP-40) |
| Kiểu lắp đặt | Through-Hole |
| ADC | 10-bit (per datasheet) |
| Flash Endurance | 1 k erase/write cycles |
| Communication Interfaces | Enhanced USART (LIN-capable), 2x I2C/SPI synchronous serial ports with I2C address masking |
| Programming | ICSP (In-Circuit Serial Programming) |
| Power Management | nanoWatt technology |
| Khoảng nhiệt độ hoạt động | -40C to +85C (Industrial, 'I' suffix) |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC18F45J10-I/P
| Chân 1 | MCLR — Master Clear (reset, active low) |
| Chân 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Chân 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Chân 4 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| Chân 5 | RA3/AN3 — PORTA bit 3 / analog input 3 |
| Chân 6 | RA4 — PORTA bit 4 |
| Chân 7 | RA5/AN4 — PORTA bit 5 / analog input 4 |
| Chân 8 | VSS — Ground |
| Chân 9 | RA7 — PORTA bit 7 / oscillator input |
| Chân 10 | RA6 — PORTA bit 6 / oscillator output |
| Chân 11 | RC0/T1OSO — PORTC bit 0 / Timer1 oscillator output |
| Chân 12 | RC1/T1OSI — PORTC bit 1 / Timer1 oscillator input |
| Chân 13 | RC2/CCP1 — PORTC bit 2 / Capture-Compare-PWM 1 |
| Chân 14 | RC3 — PORTC bit 3 |
| Chân 15 | RC4 — PORTC bit 4 |
| Chân 16 | RC5 — PORTC bit 5 |
| Chân 17 | RC6/TX/CK — PORTC bit 6 / USART TX / clock |
| Chân 18 | RC7/RX/DT — PORTC bit 7 / USART RX / data |
| Chân 19 | VSS — Ground |
| Chân 20 | VDD — Positive supply |
| Chân 21 | RB0/INT0 — PORTB bit 0 / external interrupt 0 |
| Chân 22 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| Chân 23 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| Chân 24 | RB3 — PORTB bit 3 |
| Chân 25 | RB4 — PORTB bit 4 |
| Chân 26 | RB5 — PORTB bit 5 |
| Chân 27 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Chân 28 | RB7/PGD — PORTB bit 7 / ICSP data |
| Chân 29 | VSS — Ground |
| Chân 30 | VDD — Positive supply |
| Chân 31 | RD0 — PORTD bit 0 |
| Chân 32 | RD1 — PORTD bit 1 |
| Chân 33 | RD2 — PORTD bit 2 |
| Chân 34 | RD3 — PORTD bit 3 |
| Chân 35 | RD4 — PORTD bit 4 |
| Chân 36 | RD5 — PORTD bit 5 |
| Chân 37 | RD6 — PORTD bit 6 |
| Chân 38 | RD7 — PORTD bit 7 |
| Chân 39 | RE0 — PORTE bit 0 |
| Chân 40 | RE1 — PORTE bit 1 |
Ứng dụng tiêu biểu
PIC18F45J10-I/P phù hợp cho 6 Áp dụngs: Consumer Appliance Control Boards, LIN-Connected Automotive Body Modules, Industrial Sensor Interface Boards, Educational and Hobbyist Platforms, Small Mechatronic Subsystems, Cost-Sensitive General-Purpose Embedded.
Consumer Appliance Control Boards
The PIC18F45J10-I/P fits consumer appliance controllers - washing machines, microwave ovens, and induction cooktops - because its 32 KB Flash holds application firmware, 1 KB RAM supports user-interface state, and nanoWatt sleep modes cut standby power below ENERGY STAR thresholds. Its 40-pin PDIP package is ideal for through-hole assembly on high-voltage relay boards where SMT cannot withstand conformal-coat reflow.
Được đề xuất
LIN-Connected Automotive Body Modules
The PIC18F45J10-I/P is a strong fit for LIN-connected automotive body and convenience modules - door locks, mirror controllers, seat adjusters, and lighting slaves - because its enhanced USART with LIN capability offloads bus handling in hardware. Operating at 2.0 V to 3.6 V it pairs with automotive 12 V rails after regulator drop, and the industrial temperature grade covers most cabin environments.
Được đề xuất
Industrial Sensor Interface Boards
The PIC18F45J10-I/P is well suited to industrial sensor interface boards - thermocouple readers, pressure transducers, and process-control front-ends - because its 10-bit ADC delivers adequate resolution for many transducer outputs, its two I2C/SPI ports let you daisy-chain multiple sensors, and I2C address masking simplifies peripheral addressing. nanoWatt modes extend battery life on wireless sensor nodes.
Được đề xuất
Educational and Hobbyist Platforms
The PIC18F45J10-I/P is ideal for educational and hobbyist platforms because the 40-pin PDIP package plugs into standard breadboards and through-hole prototype boards without surface-mount rework. The PIC18 instruction set is widely supported by MPLAB X, CCS C, and mikroC compilers, and the ICSP programming header allows easy firmware updates via a PICkit 3 or PICkit 4.
Được đề xuất
Small Mechatronic Subsystems
The PIC18F45J10-I/P fits small mechatronic subsystems - 3D-printer controllers, CNC spindle drivers, and stepper indexers - because its multiple timers and PWM channels drive motors and servos directly, while its enhanced USART handles host-side commands. The 40-pin PDIP package supports through-hole repair in field-deployed equipment, reducing downtime.
Được đề xuất
Cost-Sensitive General-Purpose Embedded
The PIC18F45J10-I/P targets cost-sensitive general-purpose embedded designs where 32 KB Flash and 1 KB RAM are sufficient - LED signage controllers, HVAC peripherals, vending machines, and access control panels. The J-series 2.0 V to 3.6 V operation lets you bypass 5 V regulators entirely, reducing BOM cost, and nanoWatt modes lower idle current to extend battery life.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F45J10-I/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 | PIC18F46J13-I/P | PIC18F44J10-I/P | PIC18F45J10-I/PREL | PIC18F45J10-I/SP | PIC18F45J10-I/SO |
|---|---|---|---|---|---|---|
| Package | PDIP-40 | PDIP-40 (same) | PDIP-40 (same) | PDIP-40 (same) | SPDIP-40 (same) | SOIC-40 wide-body |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 64 KB | 16 KB | 32 KB | 32 KB | 32 KB |
| RAM | 1 KB | 3.8 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Maximum Frequency | 40 MHz | 48 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Operating Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V |
| LIN-capable USART | Yes | Yes | Yes | Yes | Yes | Yes |
| Operating Temperature | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
Bảo phân biệt quan trọng
- 32 KB Flash sweet spot for cost-sensitive 8-bit designs (vsPIC18F46J13-I/P (64 KB Flash))
- LIN-capable USART in J-series 3.3 V core (vsPIC18F4550-I/P (5 V, USB))
- Through-hole PDIP for fast prototyping and field repair (vsPIC18F45J10-I/PT (TQFP-44 SMT))
Ghi chú thiết kế
Estimated: at 40 MHz and 3.3 V, the PIC18F45J10-I/P core draws roughly 10-15 mA active. Use a low-dropout regulator such as MCP1700-3302E to derive 3.3 V from 5 V rails; add 100 nF and 10 uF decoupling on VDD pins 20 and 30, and place them within 5 mm of the MCU pins. Avoid routing high-current traces under the package to prevent supply-noise coupling into the ADC.
The J-series PIC18F45J10 is NOT 5 V tolerant on I/O pins - applying 5 V signals directly will cause latch-up. Always level-shift using a resistor divider or dedicated level translator (e.g., TXS0108E) when interfacing to 5 V peripherals such as legacy TTL logic. Also note that the J-series internal core uses 3.3 V regulators different from K-series; do not migrate code without verifying ADC and I/O thresholds.
When laying out the ICSP programming header, place PGC (RB6, pin 27) and PGD (RB7, pin 28) on a 6-pin 0.1-inch header with MCLR/VPP, VDD, VSS, and a reserved pin. Keep the trace from MCLR (pin 1) to the header short (<50 mm) and add a 10 kohm pull-up to VDD to prevent spurious resets during in-circuit programming or noise events.
Thông tin tuân thủ
RoHS and lead-free compliant per Microchip product page; industrial grade only - not AEC-Q100 qualified; choose -Q1 suffix variants for AEC-Q100 automotive designs. Halogen-free status not explicitly stated in the verified web data.
