PIC18F4515-I/P - 8-bit 40MHz 48KB Flash MCU 40-PDIP | Microchip
MPN: PIC18F4515-I/P ✓ Hoạt độngPIC18F4515-I/P Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and programmable I/O peripherals. The PIC18F family uses a modified Harvard RISC architecture with 16-bit instructions and 8-bit data path, designed by Microchip as the high-performance tier of their 8-bit portfolio and widely deployed in motor control, instrumentation, and embedded control.
Key features include the 40 MHz internal oscillator support, nanoWatt Technology for low-power sleep modes, a 10-bit ADC with up to 13 input channels, two USART modules, an MSSP (Master Synchronous Serial Port) supporting SPI and I2C, two CCP (Capture/Compare/PWM) modules plus an enhanced ECCP, and a parallel slave port for external bus interfacing. The 36 digital I/O pins are 5V tolerant, with hardware PWM and interrupt-on-change capability.
Architecturally, the device uses a 16-bit modified Harvard core with 32 KB of linear program addressing, an 8x8 hardware multiplier, and a priority-interrupt controller. The 48 KB Flash supports self-programming, enabling in-field firmware updates via bootloader, and the nanoWatt Technology suite provides deep-sleep current in the microamp range for battery-backed applications.
Typical applications include industrial control panels, HVAC fan and damper controllers, security and alarm panels, low-end automotive body modules, instrumentation front-ends, and educational/development platforms such as the PICDEM board ecosystem, where the 40-pin PDIP allows easy breadboard prototyping.
When designing with this part, ensure the MCLR reset pin is properly pulled up with a 10 kohm resistor and that VDD decoupling includes a 100 nF ceramic capacitor placed within 5 mm of each power pin. Programming is supported via the ICSP interface using the MPLAB PICkit 5, ICD 4, or MPLAB X IDE 6.x toolchain, with no external crystal required when using the internal oscillator.
This page synthesizes distributor pricing, drop-in pin-compatible alternatives from the PIC18F family, and practical design notes drawn from the manufacturer datasheet - content not found on any single distributor or manufacturer page.
Bộ thay thế dễ dàng lắp đặt cho PIC18F4515-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 PIC18F4515-I/P (cùng hình factor và footprint) — khác nhau ở Package, Program Memory (Flash), Core Architecture, Operating Temperature, Timers.
PIC18F4525-I/P
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F4520-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F4510-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F46K22-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F4515-I/PT
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F4515-E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F4515-I/P Tỷ lệ tối đa & tính chất điện
| Core Architecture | 8-bit PIC18F RISC, modified Harvard |
| Program Memory (Flash) | 48 KB (24K x 16 words) |
| Data SRAM | 3,968 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Frequency | 40 MHz |
| Operating Voltage (VDD) | 2.0 V to 5.5 V |
| Digital I/O Pins | 36 |
| ADC | 10-bit, up to 13 channels |
| Timers (8-bit / 16-bit) | 1 x 8-bit, 3 x 16-bit |
| CCP / ECCP Modules | 2 CCP + 1 ECCP |
| USART | 2 modules (with LIN support) |
| MSSP (SPI / I2C) | 1 module, SPI and I2C modes |
| Parallel Slave Port | Yes |
| Hộp | 40-pin PDIP (0.600 inch / 15.24 mm body width) |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (Industrial, I-suffix) |
| Low-Power Mode | nanoWatt Technology (Sleep, Idle, deep Sleep) |
| ICSP Programming | Yes (In-Circuit Serial Programming) |
| Trạng thái RoHS | Compliant (lead-free finish) |
Cấu hình chân PIC18F4515-I/P
| Chân 1 | MCLR/VPP/RE3 — Master Clear (reset) input or programming voltage / Port E bit 3 |
| Chân 2 | RA0/AN0 — Port A bit 0 / Analog input channel 0 |
| Chân 3 | RA1/AN1 — Port A bit 1 / Analog input channel 1 |
| Chân 4 | RA2/AN2/VREF- — Port A bit 2 / Analog input channel 2 / ADC VREF- |
| Chân 5 | RA3/AN3/VREF+ — Port A bit 3 / Analog input channel 3 / ADC VREF+ |
| Chân 6 | RA4/T0CKI — Port A bit 4 / Timer 0 clock input |
| Chân 7 | RA5/AN4/SS — Port A bit 5 / Analog input channel 4 / SPI Slave Select |
| Chân 8 | RE0/RD/AN5 — Port E bit 0 / Parallel Slave Port read / Analog input 5 |
| Chân 9 | RE1/WR/AN6 — Port E bit 1 / Parallel Slave Port write / Analog input 6 |
| Chân 10 | RE2/CS/AN7 — Port E bit 2 / Parallel Slave Port chip select / Analog input 7 |
| Chân 11 | VDD — Positive power supply (2.0 V to 5.5 V) |
| Chân 12 | VSS — Ground reference |
| Chân 13 | OSC1/CLKI/RA7 — Crystal oscillator input / external clock / Port A bit 7 |
| Chân 14 | OSC2/CLKO/RA6 — Crystal oscillator output / clock output / Port A bit 6 |
| Chân 15 | RC0/T1OSO/T13CKI — Port C bit 0 / Timer 1 oscillator output / Timer 1 clock input |
| Chân 16 | RC1/T1OSI/CCP2 — Port C bit 1 / Timer 1 oscillator input / CCP2 output |
| Chân 17 | RC2/CCP1 — Port C bit 2 / CCP1 PWM output |
| Chân 18 | RC3/SCK/SCL — Port C bit 3 / MSSP SPI clock / I2C clock |
| Chân 19 | RD0/PSP0 — Port D bit 0 / Parallel Slave Port data 0 |
| Chân 20 | RD1/PSP1 — Port D bit 1 / Parallel Slave Port data 1 |
| Chân 21 | RD2/PSP2 — Port D bit 2 / Parallel Slave Port data 2 |
| Chân 22 | RD3/PSP3 — Port D bit 3 / Parallel Slave Port data 3 |
| Chân 23 | RC4/SDI/SDA — Port C bit 4 / MSSP SPI data in / I2C data |
| Chân 24 | RC5/SDO — Port C bit 5 / MSSP SPI data out |
| Chân 25 | RC6/TX/CK — Port C bit 6 / USART1 transmit / USART1 clock |
| Chân 26 | RC7/RX/DT — Port C bit 7 / USART1 receive / USART1 data |
| Chân 27 | RD4/PSP4 — Port D bit 4 / Parallel Slave Port data 4 |
| Chân 28 | RD5/PSP5 — Port D bit 5 / Parallel Slave Port data 5 |
| Chân 29 | RD6/PSP6 — Port D bit 6 / Parallel Slave Port data 6 |
| Chân 30 | RD7/PSP7 — Port D bit 7 / Parallel Slave Port data 7 |
| Chân 31 | VSS — Ground reference |
| Chân 32 | VDD — Positive power supply (2.0 V to 5.5 V) |
| Chân 33 | RB0/INT0/AN8 — Port B bit 0 / External interrupt 0 / Analog input 8 |
| Chân 34 | RB1/INT1/AN10 — Port B bit 1 / External interrupt 1 / Analog input 10 |
| Chân 35 | RB2/INT2/AN8 — Port B bit 2 / External interrupt 2 / Analog input 8 (alt) |
| Chân 36 | RB3/INT3/CCP2/AN9 — Port B bit 3 / External interrupt 3 / CCP2 / Analog input 9 |
| Chân 37 | RB4/KBI0/AN11 — Port B bit 4 / Interrupt-on-change bit 0 / Analog input 11 |
| Chân 38 | RB5/KBI1/AN12 — Port B bit 5 / Interrupt-on-change bit 1 / Analog input 12 |
| Chân 39 | RB6/KBI2/PGC — Port B bit 6 / Interrupt-on-change bit 2 / ICSP clock |
| Chân 40 | RB7/KBI3/PGD — Port B bit 7 / Interrupt-on-change bit 3 / ICSP data |
Ứng dụng tiêu biểu
PIC18F4515-I/P phù hợp cho 6 Áp dụngs: Industrial Control Panels, HVAC Fan and Damper Controllers, Security and Alarm Panels, Instrumentation Front-Ends, Educational Development Boards, Low-End Automotive Body Modules.
Industrial Control Panels
The PIC18F4515-I/P is well suited for industrial control panels thanks to its 48 KB Flash and 3,968 bytes of SRAM, which comfortably host a real-time scheduler plus LCD/HMI driver, and its 36 I/O pins to drive relays, optocouplers, and 7-segment displays. Its 13-channel 10-bit ADC reads panel-mount sensors (temperature, pressure, level) while the two USARTs link to a master PLC or HMI module. Compared with a CPLD-based approach the integrated nanoWatt low-power modes cut standby draw for always-on panels.
Được đề xuất
HVAC Fan and Damper Controllers
In HVAC fan and damper loops the PIC18F4515-I/P's ECCP module generates the high-resolution PWM needed for brushless DC fan speed control, while the 13-channel ADC samples NTC thermistors, humidity probes, and duct pressure sensors. The 40 MHz core runs a PI control loop at adequate sampling rate, and the nanoWatt deep-sleep mode drops standby current below 100 nA for off-cycle periods. The 40-pin PDIP package simplifies field-serviceable through-hole assembly in legacy HVAC control boards.
Được đề xuất
Security and Alarm Panels
Security alarm panels benefit from the PIC18F4515-I/P's parallel slave port for fast zone-expansion via external shift registers and its 36 I/O pins to monitor up to 32 wired zones plus a keypad matrix. Flash self-programming supports secure bootloader-based firmware updates over the USART, while the 256-byte EEPROM stores zone configuration and event logs without battery backup. The -40 C to +85 C industrial temperature grade ensures reliable operation in unheated attics, garages, and basements.
Được đề xuất
Instrumentation Front-Ends
For bench and laboratory instrumentation, the PIC18F4515-I/P provides a 10-bit ADC with 13 channels to digitize sensor analog outputs, plus two USARTs to bridge to a host PC or display controller. The 48 KB Flash holds calibration constants and linearization tables, while the MSSP serves an SPI LCD or external DAC. Compared with discrete ADC + 8-bit CPU designs, this integrated approach reduces PCB area and BOM cost in multimeters, weigh scales, and process calibrators.
Được đề xuất
Educational Development Boards
The 40-pin PDIP package of the PIC18F4515-I/P is breadboard-friendly and ideal for university courses teaching embedded systems, where students can swap the MCU in a socketed board without rework. Its 48 KB Flash hosts the full Microchip application library (USB, TCP/IP lite, graphics) for lab exercises, and the ICSP header allows students to reprogram in seconds. The industrial temperature rating also lets the same lab board be used outdoors in field-measurement projects.
Được đề xuất
Low-End Automotive Body Modules
In non-safety automotive body modules such as interior lighting, seat controllers, or mirror adjusters, the PIC18F4515-I/P's 40-pin PDIP footprint simplifies through-hole assembly for low-volume aftermarket and accessory products. Its two LIN-capable USARTs connect to body networks, while the ECCP drives small motors and the ADC reads current sense resistors for LED and motor feedback. Designers should note this part is not AEC-Q100 qualified; for OEM automotive use, the dsPIC33 or PIC18F-K families offer automotive-grade alternatives.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18F4515-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 | PIC18F4525-I/P | PIC18F4520-I/P | PIC18F4510-I/P | PIC18F46K22-I/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 40-pin PDIP | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same | 40-pin PDIP - same |
| Program Memory (Flash) | 48 KB | 48 KB - same | 32 KB (-33%) | 32 KB (-33%) | 64 KB (+33%) |
| Data SRAM | 3,968 bytes | 3,968 bytes - same | 1,536 bytes (-61%) | 1,536 bytes (-61%) | 3,896 bytes (-2%) |
| Maximum CPU Frequency | 40 MHz / 10 MIPS | 40 MHz / 10 MIPS - same | 40 MHz / 10 MIPS - same | 40 MHz / 10 MIPS - same | 64 MHz / 16 MIPS (+60%) |
| USB 2.0 SIE | No | Yes (full-speed) | No | No | No |
| Low-Power Technology | nanoWatt | nanoWatt | nanoWatt | nanoWatt | nanoWatt XLP (better sleep current) |
| Temperature Grade (this I/P) | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C | Industrial -40 C to +85 C |
Bảo phân biệt quan trọng
- Higher Flash density in the same 40-pin PDIP (vsPIC18F4520-I/P)
- No USB SIE keeps BOM cost low (vsPIC18F4525-I/P)
- Modern XLP upgrade path on same footprint (vsPIC18F46K22-I/P)
Ghi chú thiết kế
Place a 100 nF decoupling capacitor within 5 mm of each VDD/VSS pair (two pairs on the 40-pin PDIP: pins 11/12 and 31/32). For designs driving relays or LEDs add a bulk 10 uF tantalum or aluminum polymer capacitor near the MCU supply pin. nanoWatt sleep current on this part is specified in the Microchip PIC18F4515 datasheet electrical characteristics table; verify against your application's standby budget before relying on battery-backed operation. Estimated: with only the 100 nF caps and 5 V supply the MCU itself draws roughly 10 mA active at 40 MHz.
Route the ICSP lines PGC (RB6) and PGD (RB7) to a 5-pin header (1x5 or 2x3) with MCLR, VDD, and VSS so the board can be programmed in-circuit. Place a 10 kohm pull-up resistor on MCLR and a Schottky diode (1N5817 or equivalent) from MCLR to VDD to allow in-circuit programming without disturbing the reset line. Keep the trace length of the crystal or oscillator less than 12 mm and guard both pins with a ground ring for noise immunity, per Microchip AN588 (PICmicro oscillator design).
Do not assume the parallel slave port is enabled by default - PSP control bits must be set in the PORTE register. The MSSP module can operate in SPI mode or I2C mode but not both simultaneously; verify which peripherals you need before committing. The PIC18F4515-I/P is not AEC-Q100 qualified, so do not use it as a primary MCU for safety-critical automotive ECUs - migrate to a dsPIC33 or PIC18F-K automotive grade for OEM production. Finally, ensure the I-suffix industrial temperature grade (-40 C to +85 C) matches your deployment envelope; the E-suffix extended grade goes to +125 C.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Lead-free finish. Industrial temperature grade -40 C to +85 C. Not AEC-Q100 qualified - for automotive safety designs choose an automotive-grade PIC or dsPIC variant.
