PIC18LF2523T-I/ML - 8-bit 32KB Flash MCU, 40MHz, QFN-28 | Microchip
MPN: PIC18LF2523T-I/ML ✓ פעילPIC18LF2523T-I/ML סקירה
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, plus peripherals such as ADCs, timers, communication interfaces, and I/O ports into one package. Within the broader taxonomy, the PIC18LF2523 is an 8-bit CISC-architecture MCU in the PIC18 family, which sits under Microchip's 8-bit MCU portfolio alongside PIC10/12/16 devices, and ultimately under the wider category of microcontrollers and embedded processing. LF variants specifically denote low-voltage Flash parts optimized for operation down to 2.0V, where F parts run from 4.2V to 5.5V.
Key features include a 10-bit ADC with up to 12 channels, multiple communication peripherals (UART, SPI, I2C), enhanced Capture/Compare/PWM (ECCP) modules, and nanoWatt Technology for low-power sleep modes consuming under 100 nA typical. The 32KB Flash supports self-programmability via ICSP, allowing in-field firmware updates, while the 1.5KB RAM and 256-byte EEPROM support data retention and runtime parameter storage.
Architecturally, the PIC18LF2523 uses a 16-bit modified Harvard RISC core with a 78 instruction set, hardware multiplier, and 8x8 hardware multiplier for efficient DSP operations. The integrated 12-bit ADC (per JLCPCB listing) and high-resolution PWM modules simplify mixed-signal designs, eliminating external ADC or DAC components for many sensor and motor control applications.
Typical applications include industrial sensor nodes, low-power IoT edge devices, consumer appliances, automotive body electronics, USB-to-UART bridges, and small motor control. The wide voltage range and nanoWatt power management make it particularly suitable for battery-powered and energy-harvesting designs.
When designing with this part, ensure adequate decoupling on VDD/AVDD (0.1uF + 10uF) and verify the exposed pad is soldered to a sufficient ground copper pour for thermal dissipation. The 28-pin QFN footprint is pin-compatible with the PIC18LF2523-I/ML and PIC18F2523T-I/ML, simplifying PCB reuse across product variants.
This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes not found on a single distributor listing, supporting engineers and procurement teams in rapid BOM evaluation.
חלופות תחליף ישיר עבור PIC18LF2523T-I/ML — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC18LF2523T-I/ML (אותו גורם צורה וטביעת רגל) — שונים ב ADC, Package, Core Architecture, Timers, Program Memory (Flash).
PIC18LF2523-I/ML
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC18LF2520T-I/ML
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC18LF2520-I/ML
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC18F2523T-I/ML
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC18LF2458T-I/SO
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC18LF2523T-I/ML דירוגים מרביים ומאפיינים חשמליים
| Core Architecture | 8-bit PIC18 RISC (Harvard) |
| Program Memory (Flash) | 32 KB |
| RAM | 1.5 KB |
| EEPROM | 256 Byte |
| Operating Frequency | 40 MHz (max) |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| טמפרטורת פעולה | -40C to +85C (Industrial) |
| מארז | QFN-28-EP (6x6 mm) |
| ADC | 12-bit (per JLCPCB listing) |
| ADC Channels | Up to 12 |
| I/O Pins | 25 |
| Communication Peripherals | UART, SPI, I2C |
| PWM Modules | Enhanced CCP (ECCP) |
| סוג הרכבה | Surface Mount |
| סטטוס RoHS | Compliant |
תצורת פינים של PIC18LF2523T-I/ML
| פין 1 | RA2/AN2/VREF-/CVREF — Digital I/O / Analog input / Voltage reference |
| פין 2 | RA3/AN3/VREF+ — Digital I/O / Analog input / Voltage reference |
| פין 3 | RA4/T0CKI/C1OUT — Digital I/O / Timer0 clock input / Comparator output |
| פין 4 | RA5/AN4/SS/HLVDIN/C2OUT — Digital I/O / Analog input / SPI slave select |
| פין 5 | RA6/OSC2/CLKO — Digital I/O / Oscillator output |
| פין 6 | RA7/OSC1/CLKI — Digital I/O / Oscillator input |
| פין 7 | VSS — Ground reference |
| פין 8 | VDD — Positive supply voltage |
| פין 9 | RB0/INT0/FLT0/AN12 — Digital I/O / External interrupt / Analog input |
| פין 10 | RB1/INT1/AN10 — Digital I/O / External interrupt / Analog input |
| פין 11 | RB2/INT2/AN8 — Digital I/O / External interrupt / Analog input |
| פין 12 | RB3/AN9/CCP2 — Digital I/O / Analog input / Capture/Compare/PWM |
| פין 13 | RB4/AN11/KBI0 — Digital I/O / Analog input / Keyboard interrupt |
| פין 14 | RB5/KBI1/PGM — Digital I/O / Keyboard interrupt / LVP programming |
| פין 15 | RB6/PGC — Digital I/O / ICSP clock |
| פין 16 | RB7/PGD — Digital I/O / ICSP data |
| פין 17 | VSS — Ground reference |
| פין 18 | VDD — Positive supply voltage |
| פין 19 | RC0/T1OSO/T1CKI — Digital I/O / Timer1 oscillator output |
| פין 20 | RC1/T1OSI/CCP2 — Digital I/O / Timer1 oscillator input |
| פין 21 | RC2/CCP1 — Digital I/O / Capture/Compare/PWM |
| פין 22 | RC3/SCK/SCL — Digital I/O / SPI clock / I2C clock |
| פין 23 | RC4/SDI/SDA — Digital I/O / SPI data in / I2C data |
| פין 24 | RC5/SDO — Digital I/O / SPI data out |
| פין 25 | RC6/TX/CK — Digital I/O / UART transmit / clock |
| פין 26 | RC7/RX/DT — Digital I/O / UART receive / data |
| פין 27 | RE0/RD/AN5 — Digital I/O / Parallel port read / Analog input |
| פין 28 | RE1/WR/AN6 — Digital I/O / Parallel port write / Analog input |
| פין 29 | EP — Exposed thermal pad - connect to VSS (ground) |
יישומים טיפוסיים
PIC18LF2523T-I/ML מתאים עבור 6 יישוםs: Battery-Powered IoT Sensor Nodes, Industrial Sensor Signal Conditioning, USB-to-UART Bridge / CDC Devices, Small Motor Control (BLDC / Stepper), Consumer Appliance Control Boards, Automotive Body Electronics.
Battery-Powered IoT Sensor Nodes
The PIC18LF2523T-I/ML is ideal for battery-powered IoT sensor nodes because its 2.0V to 5.5V supply range supports direct operation from two AA cells or Li-coin cells without a boost converter. Its nanoWatt Technology reduces sleep current to under 100 nA, extending battery life to multiple years in low-duty-cycle applications. The 12-bit ADC (per JLCPCB listing) provides sensor measurement resolution, while UART/SPI/I2C peripherals connect to wireless modules like LoRa or BLE transceivers.
מומלץ
Industrial Sensor Signal Conditioning
The PIC18LF2523T-I/ML's 12-bit ADC with up to 12 input channels handles multi-sensor industrial interfaces (temperature, pressure, flow) without external ADCs. Its 40 MHz clock speed (10 MIPS) executes DSP-like filtering algorithms for noise reduction, while the ECCP/PWM module drives 4-20 mA current loops. The 32KB Flash accommodates complex calibration routines, and the 256-byte EEPROM stores per-unit calibration coefficients for field-deployed sensors.
מומלץ
USB-to-UART Bridge / CDC Devices
The PIC18LF2523T-I/ML handles USB-to-UART communication tasks using its on-chip USB transceiver (where present in the family) or external USB-serial bridge chips. Its UART peripheral implements CDC class communications for virtual COM port enumeration, while the 32KB Flash supports USB stack and protocol handlers. The wide 2.0V-5.5V range makes it suitable for both USB bus-powered devices (5V) and battery-powered debug tools (3.3V).
מומלץ
Small Motor Control (BLDC / Stepper)
The PIC18LF2523T-I/ML's Enhanced CCP (ECCP) PWM module drives small brushless DC or stepper motors up to several hundred mA via external MOSFET drivers. Its 40 MHz clock and hardware multiplier (8x8) handle real-time PID control loops, while the 12-bit ADC reads back EMF sensing or current shunt measurements. The QFN-28 package's exposed pad enables thermal dissipation during high-switching-frequency PWM operation.
מומלץ
Consumer Appliance Control Boards
Consumer appliances (washing machines, dishwashers, coffee makers) integrate the PIC18LF2523T-I/ML for user interface handling, sensor monitoring, and actuator control. Its robust 32KB Flash holds complex state machines for appliance cycles, while 1.5KB RAM supports display buffering and parameter storage. The 256-byte EEPROM retains user preferences across power cycles, and the wide -40C to +85C operating range handles appliance thermal environments.
מומלץ
Automotive Body Electronics
While not AEC-Q100 qualified, the PIC18LF2523T-I/ML serves automotive aftermarket and non-safety body electronics like LED controllers, ambient lighting, and accessory modules. Its 2.0V-5.5V range handles automotive 12V battery transients when paired with TVS protection and an LDO. The 32KB Flash implements CAN-LIN gateways or PWM-driven lighting effects, while the 12-bit ADC monitors battery voltage and current sense inputs.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC18LF2523T-I/ML — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC18LF2523-I/ML | PIC18LF2520T-I/ML | PIC18LF2520-I/ML | PIC18F2523T-I/ML |
|---|---|---|---|---|---|
| Package | QFN-28-EP (6x6 mm) | QFN-28-EP (6x6 mm) - same | QFN-28-EP (6x6 mm) - same | QFN-28-EP (6x6 mm) - same | QFN-28-EP (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 32 KB | 32 KB | 16 KB (-50%) | 16 KB (-50%) | 32 KB |
| RAM | 1.5 KB | 1.5 KB | 1.5 KB | 1.5 KB | 1.5 KB |
| Operating Voltage | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 2.0V to 5.5V | 4.2V to 5.5V |
| Max Frequency | 40 MHz | 40 MHz | 40 MHz | 40 MHz | 40 MHz |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Packaging Form | Tape & Reel | Tray | Tape & Reel | Tray | Tape & Reel |
מבדילים עיקריים
- Low-voltage operation down to 2.0V (לעומתPIC18F2523T-I/ML)
- 32KB Flash for full-featured firmware (לעומתPIC18LF2520T-I/ML)
- 12-bit ADC for higher sensor resolution (לעומתPIC18LF2520T-I/ML)
הערות תכנון
The QFN-28-EP package's exposed thermal pad (EP, pin 29) MUST be soldered to a ground copper pour for electrical performance and thermal dissipation. Use thermal vias (typically 4-9 vias in a 3x3 array) to connect the EP to internal ground planes. Without proper EP soldering, the device may exhibit thermal runaway under high-load conditions or RF emissions due to poor ground reference.
Place a 0.1uF ceramic decoupling capacitor as close as possible to each VDD pin (pins 8 and 18), with a 10uF bulk capacitor on the main supply rail. For AVCC/AVSS analog supplies (if used), add a 10uH inductor or ferrite bead between VDD and AVCC plus a 0.1uF + 10uF decoupling network to isolate analog and digital sections. Power supply rise time should be less than 0.1V/ms for proper brown-out reset operation.
Do not confuse LF (low-voltage Flash, 2.0V-5.5V) and F (standard Flash, 4.2V-5.5V) variants when sourcing replacements - operation below 4.2V on an F variant may cause Flash programming failures and erratic behavior. Verify the exact voltage range for your design. Also note that the PIC18LF2523 and PIC18F2523 have the same die; the LF simply adds a wider operating voltage specification verified at test.
מידע על תאימות
RoHS compliant per JLCPCB and Hotenda product listings. Industrial temperature grade (-40C to +85C) but not AEC-Q100 qualified for automotive safety applications.
