PIC18LF2610-I/SO - 8-bit 64KB Flash MCU, 40MHz, 28-SOIC | Microchip
MPN: PIC18LF2610-I/SO ✓ Hoạt độngPIC18LF2610-I/SO Tóm tắt
An 8-bit microcontroller (microcontroller) is a single-chip computer containing a CPU core, Flash program memory, RAM, non-volatile EEPROM, and a rich set of peripherals (timers, ADC, communication interfaces) integrated on one die. PIC18 is Microchip's high-performance 8-bit family, positioned above the PIC16 family by offering a 16-bit instruction word, hardware multiplier, linear memory map, and C-friendly architecture, while still maintaining the 8-bit ALU. Microcontrollers belong to the broader category of embedded controllers and are the workhorse of low-cost, low-power digital systems in industrial, automotive, and consumer products.
The PIC18LF2610 is the low-voltage ('LF') variant of the PIC18F2610, allowing operation down to 2.0 V (versus 4.2 V for the 'F' version), which makes it suitable for battery-powered designs and 3.3 V systems. It carries the PIC18F2X1X/4X1X peripheral set, including nanoWatt power management with multiple idle/sleep modes and an on-chip low-voltage detect (LVD) module. The 'SO' suffix indicates a 28-pin SOIC (300-mil body) industrial temperature range (-40 to +85C) package.
Typical applications include industrial control, motor control (BLDC/stepper via CCP/PWM), sensor signal conditioning (via the 10-bit ADC), USB-to-UART bridges (paired with an external UART/USB bridge IC), lighting controllers, security and alarm panels, and general-purpose 8-bit embedded control boards. The combination of ample Flash (64 KB), generous RAM, and a rich peripheral mix makes it a strong fit for firmware-rich mid-volume designs.
When designing with this part, ensure the in-circuit serial programming (ICSP) pins (RB6/RB7) are brought to a programming header and that VDD decoupling uses 100 nF + bulk capacitance close to the package. Choose the 'LF' variant explicitly when the supply rail is below 4.2 V; otherwise the standard PIC18F2610-I/SO provides the same peripheral set.
This page synthesizes real-time distributor pricing, cross-vendor drop-in alternatives from the Microchip PIC18F2X1X/4X1X family, and practical PCB/firmware design notes not consolidated in the datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC18LF2610-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 PIC18LF2610-I/SO (cùng hình factor và footprint) — khác nhau ở Package, ADC, Operating Temperature, Core Architecture, Program Memory (Flash).
PIC18LF2610T-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18F2610-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF2620-I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F25K22-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF25K22-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF25K50-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF2610-I/SO Tỷ lệ tối đa & tính chất điện
| Product Family | PIC18F2X1X/4X1X |
| Core | PIC18 8-bit RISC |
| Program Memory (Flash) | 64 KB |
| RAM | 3968 bytes |
| Tần số xung maksimum | 40 MHz |
| Supply Voltage (LF) | 2.0 V to 5.5 V |
| I/O Pins | 25 |
| A/D Converter | 10-bit, up to 11 channels |
| Comparators | 2 |
| CCP / ECCP Modules | 2 (1 CCP + 1 ECCP) |
| USART | 1 (Enhanced) |
| MSSP (SPI / I2C) | 1 |
| Hộp | 28-SOIC (SO, 0.295 in / 7.50 mm body) |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân PIC18LF2610-I/SO
| Chân 1 | MCLR/RE3 — Master Clear (reset) input / digital I/O RE3 |
| Chân 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Chân 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Chân 4 | RA2/AN2/VREF- — PORTA bit 2 / analog input 2 / A/D VREF- |
| Chân 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / A/D VREF+ |
| Chân 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Chân 7 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| Chân 8 | OSC1/CLKI/RA7 — Oscillator crystal input / external clock input / PORTA bit 7 |
| Chân 9 | OSC2/CLKO/RA6 — Oscillator crystal output / clock output / PORTA bit 6 |
| Chân 10 | RC0/T1OSO/T13CKI — PORTC bit 0 / Timer1 oscillator output / Timer1/3 clock |
| Chân 11 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 |
| Chân 12 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| Chân 13 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Chân 14 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Chân 15 | RC5/SDO — PORTC bit 5 / SPI data out |
| Chân 16 | RC6/TX/CK — PORTC bit 6 / USART TX / USART clock |
| Chân 17 | RC7/RX/DT — PORTC bit 7 / USART RX / USART data |
| Chân 18 | VSS — Ground reference |
| Chân 19 | VDD — Positive supply voltage (2.0-5.5 V) |
| Chân 20 | RB0/AN12/INT0 — PORTB bit 0 / analog input 12 / external interrupt 0 |
| Chân 21 | RB1/AN10/INT1 — PORTB bit 1 / analog input 10 / external interrupt 1 |
| Chân 22 | RB2/AN8/INT2 — PORTB bit 2 / analog input 8 / external interrupt 2 |
| Chân 23 | RB3/AN9/CCP2 — PORTB bit 3 / analog input 9 / CCP2 |
| Chân 24 | RB4/AN11/KBI0 — PORTB bit 4 / analog input 11 / KBI interrupt 0 |
| Chân 25 | RB5/KBI1/PGM — PORTB bit 5 / KBI interrupt 1 / LVP programming |
| Chân 26 | RB6/KBI2/PGC — PORTB bit 6 / KBI interrupt 2 / ICSP clock |
| Chân 27 | RB7/KBI3/PGD — PORTB bit 7 / KBI interrupt 3 / ICSP data |
| Chân 28 | AVSS — Analog ground reference |
Ứng dụng tiêu biểu
PIC18LF2610-I/SO phù hợp cho 6 Áp dụngs: Industrial Motor Control (BLDC / Stepper), Sensor Signal Conditioning Front End, Lighting Controller (DALI / DMX / PWM Driver), Security and Alarm Panel, General-Purpose 8-bit Embedded Control Board, Battery-Operated Handheld Meter.
Industrial Motor Control (BLDC / Stepper)
The PIC18LF2610-I/SO is well suited to industrial motor control because its ECCP module delivers hardware PWM up to 10-bit resolution at 40 MHz (10 MIPS), and its 10-bit A/D with up to 11 channels can sample back-EMF or current-shunt feedback for closed-loop commutation. With 64 KB Flash and 3968-byte RAM, it has room for sensorless BLDC or stepper acceleration profiles plus UART diagnostics. The wide 2.0-5.5 V supply lets it run directly from a 24 V->3.3 V step-down in industrial cabinets. The 28-SOIC footprint provides a small board area for inline motor drivers where the MCU sits next to the FET gate-driver.
Được đề xuất
Sensor Signal Conditioning Front End
The PIC18LF2610-I/SO fits sensor-conditioning front ends for thermocouple, RTD, bridge and strain-gauge applications because its 10-bit A/D with 11 input channels can multiplex several sensors through one MCU, and the two on-chip analog comparators enable window comparators for alarm thresholds. The 3968-byte RAM supports circular DSP buffers for moving-average filtering, while the MSSP (SPI/I2C) can drive an external DAC or EEPROM for calibration data. Operating down to 2.0 V, the part is ideal for 2xAA-powered handheld meters where the standard F variant would not start. Engineers can drop the firmware into PIC18F2610-I/SO when supply exceeds 4.2 V.
Được đề xuất
Lighting Controller (DALI / DMX / PWM Driver)
The PIC18LF2610-I/SO is a strong fit for digital lighting controllers (DALI, DMX-512, 0-10 V dimming) because its ECCP module provides PWM at frequencies and resolutions ideal for dim-to-warm or RGBW LED channels, and the USART implements DMX-512 or DALI hardware protocol layers. The 64 KB Flash is more than adequate for color-mixing firmware, ramp tables, and remote commands. The 28-SOIC footprint lets the MCU sit inline with the LED driver PCB. The LF supply range allows direct operation from a 3.3 V rail coming off a buck converter downstream of the AC-DC stage.
Được đề xuất
Security and Alarm Panel
The PIC18LF2610-I/SO is widely used in security/alarm panels because its 25 I/O pins can scan a 4x4 keypad matrix, drive a 16-character LCD via the MSSP/SPI, and monitor multiple zones (PIR, door contact, glass-break) through the 10-bit A/D and comparators. The 64 KB Flash is sufficient for event logging, while 3968-byte RAM handles real-time zone state. The 2.0-5.5 V LF range allows backup-battery (3.6 V LiSOCl2) operation during AC loss, with nanoWatt sleep dropping consumption below 100 uA for multi-year battery life.
Được đề xuất
General-Purpose 8-bit Embedded Control Board
The PIC18LF2610-I/SO is a flexible general-purpose 8-bit control board MCU, suitable for educational kits, hobby platforms, and mid-volume OEM controllers. Its peripheral mix (1 USART, 1 MSSP SPI/I2C, 2 CCP/ECCP, 2 comparators, 11-channel 10-bit A/D) covers most UART-to-I2C bridges, sensor hubs, and small PLCs. With 64 KB Flash it can run a USB-to-UART converter firmware stack. The 28-SOIC package is widely accepted on through-hole adapter PCBs and is the de-facto 8-bit training and prototyping footprint.
Được đề xuất
Battery-Operated Handheld Meter
The PIC18LF2610-I/SO is well matched to battery-operated handheld meters (digital multimeters, environmental loggers, portable gas detectors) because the 'LF' 2.0 V minimum supply keeps the part running down to a nearly-drained 2xAA alkaline or single LiSOCl2 primary cell, while the nanoWatt sleep modes drop current to microamps. Its 10-bit A/D handles battery voltage and sensor readings; the ECCP can drive an LCD charge pump or piezoelectric buzzer. The 28-SOIC compact 7.5 mm body saves board area in pocket-sized form factors.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18LF2610-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 | PIC18LF2610T-I/SO | PIC18F2610-I/SO | PIC18LF2620-I/SO | PIC18F25K22-I/SO | PIC18LF25K22-I/SO | PIC18LF25K50-I/SO |
|---|---|---|---|---|---|---|---|
| Package | 28-SOIC (SO) | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB | 32 KB | 32 KB |
| Supply Voltage (min) | 2.0 V (LF) | 2.0 V | 4.2 V | 2.0 V | 1.8 V | 1.8 V | 1.8 V |
| Maximum Clock Frequency | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 64 MHz | 64 MHz | 48 MHz |
| A/D Converter | 10-bit, 11 ch | 10-bit, 11 ch | 10-bit, 11 ch | 10-bit, 11 ch | 12-bit, 19 ch | 12-bit, 19 ch | 10-bit, 14 ch |
| CAN Module | No | No | No | Yes | No | No | No |
| XLP nanoWatt | nanoWatt | nanoWatt | nanoWatt | nanoWatt | nanoWatt | nanoWatt | XLP (sub-uA) |
Bảo phân biệt quan trọng
- Wide 2.0-5.5 V supply range (LF variant) (vsPIC18F2610-I/SO)
- Generous 64 KB Flash in a 28-pin package (vsPIC18F25K22-I/SO)
- Industrial temperature range -40C to +85C (vsPIC18LF2610-E/SO)
- Drop-in pin compatibility with PIC18F2610 above 4.2 V (vsPIC18LF25K50-I/SO)
Ghi chú thiết kế
Place a 100 nF decoupling capacitor as close as possible to each VDD/AVSS pair (pins 19/28 on 28-SOIC). Add a bulk 10 uF tantalum or aluminum-polymer on the 3.3 V rail feeding the MCU to handle ECCP PWM inrush. The LF variant tolerates supply down to 2.0 V, but if you run close to brown-out, set the BOR (brown-out reset) voltage to the lowest acceptable level to maximize battery life. Source: Microchip DS39626G, Section 2 (Electrical Characteristics).
Always bring out the ICSP pins (RB6/PGC = pin 26, RB7/PGD = pin 27) to a 5-pin or 6-pin programming header. Microchip recommends a 100-mil spaced 2x3 or single-row header for ICD/PICkit compatibility. Add MCLR pull-up (typically 10 kohm) and route the MCLR trace away from high-frequency PWM lines to avoid spurious resets. Source: Microchip application note TB087 (ICSP layout recommendations).
Do not assume PIC18LF2610 and PIC18F2610 are interchangeable at low VDD - the LF variant is required below 4.2 V. Also note: the LF variant still requires the configuration bits CONFIG1L (e.g., IESO, FCMEN) to be correctly set; an unprogrammed fresh device has LVP (low-voltage programming) enabled by default, which can interfere with RB5 if used as general I/O. Estimated: typical idle current for LF part at 3.3 V, 1 MHz is ~50 uA (datasheet figure).
Keep analog input traces (AN0-AN12) short and away from PWM and oscillator traces. Use a separate analog ground (AVSS, pin 28) tied to VSS at a single point. Add a 100 nF + 10 uF decoupling pair on AVSS/VDD if the 10-bit A/D drives ADC precision-critical sensors. Estimated: with 1.5 kohm source impedance, 12 TAD acquisition time gives ~10-bit accuracy at 40 MHz.
For the 28-SOIC (0.295 in / 7.50 mm body), the recommended land pattern follows JEDEC SOIC-28 standard: pads ~0.05 in wide x 0.085 in long with 0.050 in pitch. Use a four-layer PCB with a dedicated ground plane directly under the MCU, and route VDD power as a wide (>=20 mil) trace or small pour. Place the 40 MHz crystal (if used) within 0.25 in of OSC1/OSC2 with short traces and a ground guard ring.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Not AEC-Q100 qualified (use PIC18F26K80 or similar for automotive). LF variant indicates low-voltage operation 2.0-5.5 V (vs F variant 4.2-5.5 V).
