PIC18LF2510-I/SP - 8-bit 40MHz MCU 32KB Flash 28-SPDIP | Microchip
料号： PIC18LF2510-I/SP ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.95 | $5.95 |
| 10 | $5.36 | $53.60 |
| 100 | $4.78 | $478.00 |
| 500 | $4.21 | $2,105.00 |
| 1,000 | $3.74 | $3,740.00 |
PIC18LF2510-I/SP 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, and programmable peripherals into one IC. The PIC18 family implements an enhanced 8-bit Harvard RISC architecture with a modified instruction set optimized for C compiler code density, and the LF prefix denotes the low-voltage variant that operates across 2.0V-3.3V (and 5V tolerant) supplies, targeting battery-powered and nanoWatt energy-sensitive designs.
Key features include 32 KB Flash program memory organized as 16K x 16 words, 1.5 KB SRAM, 256 bytes of EEPROM, ten 10-bit ADC channels, two analog comparators, one 8-bit and three 16-bit timers, a 9-bit addressable Enhanced USART, MSSP supporting SPI and I2C (master/slave), two Capture/Compare/PWM modules, and a parallel slave port. The nanoWatt power-managed core offers idle, sleep, and ultra-low-power wake-on-interrupt modes with currents as low as the microampere range.
Architecturally, the device combines a 16-bit instruction word with an 8-bit data path, an internal PLL-derived oscillator, and a vectored interrupt controller. Hardware multipliers and bit-oriented instructions accelerate peripheral configuration, while ICD/ICSP in-circuit debug support streamlines firmware development with PICkit 3, MPLAB ICD 3, and MPLAB X IDE.
Typical applications include industrial sensor nodes, motor control signal conditioning, low-power remote controls, battery-backed instrumentation, and consumer white-goods interfaces. The 28-pin SPDIP form factor is widely used for prototype development, hobbyist projects, and through-hole production assemblies.
When designing with this MCU, note that the LF low-voltage rating (down to 2.0V) differentiates it from the standard PIC18F2510 (4.2V-5.5V); verify the supply rail matches the LF specification. Always configure unused pins as outputs and disable unused peripherals to minimize sleep current.
This page synthesizes distributor pricing, drop-in compatible same-package PIC18 variants, and practical design notes not found in the manufacturer datasheet alone.
直接替换替代料： PIC18LF2510-I/SP ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC18LF2510-I/SP （相同外形与封装尺寸） ——差异在于 Package, ADC, Core Architecture, Timers, I/O Pins.
快速对比工具——选择替代料号进行并排对比：
PIC18LF2520-I/SP
✅ 直接替换✓ 有现货
$4.1 / 个
查看数据手册 →PIC18LF2410-I/SP
✅ 直接替换📋 参考替代料（不在目录中）
PIC18LF2420-I/SP
✅ 直接替换📋 参考替代料（不在目录中）
PIC18F2510-I/SP
✅ 直接替换✓ 有现货
$3.85 / 个
查看数据手册 →PIC18LF24K40-I/SP
✅ 直接替换✓ 有现货
$1.55 / 个
查看数据手册 →PIC18LF24J10-I/SP
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.18 / 个
查看数据手册 →PIC18LF2510-I/SP 最大额定值与电气特性
| Core Architecture | PIC 8-bit Harvard RISC |
| Family | PIC18F |
| Maximum CPU Frequency | 40 MHz |
| Program Memory (Flash) | 32 KB (16K x 16 words) |
| Data RAM | 1.5 KB |
| EEPROM | 256 bytes |
| ADC | 10-bit, 10 channels |
| Supply Voltage Range | 2.0 V to 3.3 V (LF variant) |
| I/O Pins | 21 (Standard) |
| Timers | 1 x 8-bit + 3 x 16-bit |
| Communication Interfaces | 1 x EUSART, 1 x MSSP (SPI / I2C) |
| Capture/Compare/PWM | 2 x CCP modules |
| Analog Comparators | 2 |
| Parallel Slave Port | Yes |
| 工作温度 | -40 C to +85 C (Industrial, I grade) |
| 封装 | 28-pin SPDIP (Skinny Plastic DIP, 0.300 inch / 7.62 mm row spacing) |
| 安装类型 | Through-Hole |
| RoHS 状态 | Compliant |
PIC18LF2510-I/SP 引脚配置
| 引脚 1 | MCLR/RE3 — Master Clear (reset) input / digital input only on RE3 |
| 引脚 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| 引脚 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| 引脚 4 | RA2/AN2/VREF- — PORTA bit 2 / analog input 2 / ADC VREF- |
| 引脚 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / ADC VREF+ |
| 引脚 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| 引脚 7 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| 引脚 8 | VSS — Ground reference |
| 引脚 9 | OSC1/CLKI/RA7 — Crystal oscillator input / external clock / PORTA bit 7 |
| 引脚 10 | OSC2/CLKO/RA6 — Crystal oscillator output / clock output / PORTA bit 6 |
| 引脚 11 | RC0/T1OSO/T13CKI — PORTC bit 0 / Timer1 oscillator output / Timer1/Timer3 clock |
| 引脚 12 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 PWM output |
| 引脚 13 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| 引脚 14 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| 引脚 15 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| 引脚 16 | RC5/SDO — PORTC bit 5 / SPI data out |
| 引脚 17 | RC6/TX/CK — PORTC bit 6 / EUSART transmit / clock |
| 引脚 18 | RC7/RX/DT — PORTC bit 7 / EUSART receive / data |
| 引脚 19 | VSS — Ground reference |
| 引脚 20 | VDD — Positive supply (2.0V to 3.3V) |
| 引脚 21 | RB0/INT0 — PORTB bit 0 / external interrupt 0 |
| 引脚 22 | RB1/INT1 — PORTB bit 1 / external interrupt 1 |
| 引脚 23 | RB2/INT2 — PORTB bit 2 / external interrupt 2 |
| 引脚 24 | RB3/CCP2 — PORTB bit 3 / CCP2 alternate pin |
| 引脚 25 | RB4 — PORTB bit 4 / IOC interrupt-on-change |
| 引脚 26 | RB5/PGM — PORTB bit 5 / LVP programming |
| 引脚 27 | RB6/PGC — PORTB bit 6 / ICSP clock / IOC |
| 引脚 28 | RB7/PGD — PORTB bit 7 / ICSP data / IOC |
典型应用
PIC18LF2510-I/SP 适用于 6 应用s: Industrial Sensor Node with Analog Front-End, Battery-Backed Remote Control Transmitter, Motor Control Signal Conditioning and PWM Driver, Low-Power Data Logger with EEPROM Buffering, Consumer White Goods User Interface Controller, USB-to-Serial Bridge and Bridge Device Controller.
Industrial Sensor Node with Analog Front-End
The PIC18LF2510-I/SP fits industrial sensor nodes by providing 10 channels of 10-bit ADC for direct interfacing with thermocouples, RTDs, and 4-20 mA current loops after signal conditioning. Its 2.0V-3.3V supply range and nanoWatt sleep mode (sub-microampere) enable years-long battery operation on 2x AA cells. The 40 MHz core runs PID control loops at sufficient bandwidth for process instrumentation, while 32 KB Flash accommodates Modbus RTU or CANopen protocol stacks. Place RC filter networks on ADC inputs to mitigate switching noise, and use the internal BOR for reliable brown-out recovery in industrial environments with unstable supply rails.
推荐
Battery-Backed Remote Control Transmitter
The PIC18LF2510-I/SP is well suited to handheld remote control transmitters, where its 2.0V minimum supply supports single-cell Li-Ion or 2x AAA alkaline operation. The EUSART and MSSP peripherals drive RF modules such as nRF24L01 over SPI for sub-GHz or 2.4GHz links, while the 10-bit ADC reads battery voltage through a divider for low-battery indication. Sub-microampere sleep current and wake-on-interrupt from PORTB enable coin-cell battery life exceeding 2 years. The 28-SPDIP through-hole package simplifies prototype and low-volume hand-assembly with standard sockets and clip-on RF shields.
推荐
Motor Control Signal Conditioning and PWM Driver
The PIC18LF2510-I/SP handles low-power motor control subsystems including brushed DC motor PWM, stepper sequencing, and quadrature encoder decoding. Its two CCP modules generate complementary PWM at up to 40 MHz resolution for H-bridge FET drivers, while the 16-bit timers capture encoder pulses for closed-loop velocity feedback. The 10-bit ADC reads back-EMF sensing via comparators for sensorless stall detection. The 32 KB Flash stores sensorless trapezoidal commutation tables and fault handlers. Use gate-driver optocouplers such as TLP350 on PWM outputs for galvanic isolation in industrial drives and CNC machines.
推荐
Low-Power Data Logger with EEPROM Buffering
The PIC18LF2510-I/SP works as the controller for portable data loggers that sample environmental parameters and store results to internal 256-byte EEPROM or external SPI Flash. Operating down to 2.0V allows direct Li-Ion or alkaline battery operation with sub-microampere sleep between samples, supporting multi-year unattended deployments in cold-chain or HVAC monitoring. The 40 MHz core compresses sensor data using compact LZ-style algorithms before writing to Flash. RTC tick from Timer1 plus wake-on-interrupt schedules sampling without external RTC chips. Pair with SPI FRAM such as FM25L04 for non-volatile write endurance exceeding 10^14 cycles.
推荐
Consumer White Goods User Interface Controller
The PIC18LF2510-I/SP fits white-goods user-interface panels in washing machines, dishwashers, and microwave ovens where 5V-tolerant I/O interfaces legacy LED drivers and keypads. Its EUSART drives seven-segment displays via daisy-chained shift registers, while the ADC reads rotary encoder positions for user input. The 32 KB Flash accommodates multi-language menu strings and self-test routines. The industrial -40C to +85C temperature rating withstands appliance ambient conditions. The 28-SPDIP package supports through-hole wave soldering typical of appliance production lines, and the 2.0V-3.3V rail simplifies 3.3V LDO supply from rectified mains.
推荐
USB-to-Serial Bridge and Bridge Device Controller
The PIC18LF2510-I/SP serves as the bridge controller in USB-to-UART adapters and protocol converters where the MSSP peripheral handles I2C/SPI traffic and the EUSART converts to legacy RS-232/RS-485 buses. Operating at 40 MHz instruction rate allows software USB on bit-banged D+/D- lines when paired with external USB transceiver, or hardware CDC-ACM bridge on compatible variants. The 32 KB Flash accommodates USB stack, CDC class driver, and custom protocol layers. The industrial temperature rating and robust PIC18 architecture are common in factory-floor serial-port-isolator products and industrial gateway designs.
推荐
推荐产品汇总
工程参考数据： PIC18LF2510-I/SP ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC18LF2520-I/SP | PIC18LF2410-I/SP | PIC18LF2420-I/SP | PIC18F2510-I/SP | PIC18LF24K40-I/SP | PIC18LF24J10-I/SP |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP (7.62mm row) | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same | 28-SPDIP - same |
| Program Memory (Flash) | 32 KB (16K x 16) | 32 KB | 16 KB (-50%) | 16 KB (-50%) | 32 KB | 16 KB (-50%) | 16 KB (-50%) |
| RAM | 1.5 KB | 1.5 KB | 768 B (-49%) | 768 B (-49%) | 1.5 KB | 1 KB (-33%) | 1 KB (-33%) |
| Supply Voltage Range | 2.0 V to 3.3 V (LF) | 2.0 V to 3.3 V (LF) | 2.0 V to 3.3 V (LF) | 2.0 V to 3.3 V (LF) | 4.2 V to 5.5 V | 1.8 V to 3.6 V | 2.0 V to 3.3 V (LF) |
| Maximum CPU Frequency | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 64 MHz | 40 MHz |
| ADC | 10-bit, 10 channels | 10-bit, 10 channels | 10-bit, 8 channels | 10-bit, 8 channels | 10-bit, 10 channels | 10-bit, 14 channels | 10-bit, 10 channels |
| Operating Temperature | -40 C to +85 C (I grade) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) | -40 C to +85 C (I) |
| Approx. Unit Price (qty-1) | USD 5.95 | USD 6.30 | USD 5.40 | USD 5.50 | USD 5.80 | USD 4.20 | USD 4.80 |
关键差异点
- Low-voltage nanoWatt operation with sub-microampere sleep （对比 PIC18F2510-I/SP)
- 32 KB Flash with 10-bit ADC and full peripheral set in 28-SPDIP （对比 PIC18LF2410-I/SP)
- Classic PIC18 architecture with mature MPLAB X toolchain （对比 PIC18LF24K40-I/SP)
- Industrial -40C to +85C temperature range in through-hole package （对比 PIC18LF24J10-I/SP)
设计说明
The LF variant operates from 2.0V to 3.3V and 5V-tolerant I/O allows interfacing to legacy 5V peripherals. Place a 100 nF decoupling capacitor as close as possible to VDD pin 20, plus a bulk 10 uF tantalum or ceramic on the same rail. For battery operation, configure the internal BOR (Brown-Out Reset) to 2.0V to ensure clean reset during cell collapse. In sleep mode the device draws <1 uA typical, so consider external load switches for peripherals that should be fully powered down between samples.
The 28-SPDIP package has 0.100 inch (2.54 mm) pin pitch and 0.300 inch (7.62 mm) row spacing, standard DIP sockets and clip-on programming adapters fit directly. Keep analog signals (AN0-AN4) and digital signals on separate sides of the MCU when possible to avoid digital switching noise coupling into ADC readings. Route AVSS and VSS separately back to a single-point ground star at the regulator return to minimize ground-bounce. If using the on-chip ADC, add a small RC filter (100 ohm + 100 nF) at VREF+ for cleaner reference.
Do not assume any 28-pin PIC18 SPDIP device is firmware-compatible with the PIC18LF2510 - register maps differ across K-series, J-series, and classic F-series. Always re-validate configuration bits, oscillator settings, and ADC channel mappings when migrating. The MCLR pin (1) must be pulled high through a 10 kohm resistor for normal operation; leaving it floating causes unpredictable resets. For ICSP programming, ensure the PGC/PGD lines have 4.7 kohm pull-ups to VDD if LVP (Low-Voltage Programming) is enabled in config words.
At 40 MHz instruction rate, the SPI peripheral can toggle SCK (RC3) at up to 10 MHz with careful layout; add 33 ohm series resistors at SCK/SDO/SDI to dampen reflections on ribbon cables longer than 50 mm. The EUSART RX line (RC7) is sensitive to noise on long traces; route it away from PWM outputs and gate-drive signals. When using ADC channels for precision measurements, disable unused digital inputs on ANx pins via the ADCON1 register to reduce input leakage by orders of magnitude.
合规信息
RoHS and lead-free per Microchip product page. Not AEC-Q100 automotive grade; for automotive select -EV or automotive-grade PIC18 variants. Industrial temperature grade -40C to +85C.
