PIC18LF24K22-E/SS - 16KB Flash 8-bit MCU | Microchip | SSOP-28
MPN: PIC18LF24K22-E/SS ✓ Hoạt độngPIC18LF24K22-E/SS Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (Flash), data memory (RAM), EEPROM, and a set of peripherals such as timers, ADC, comparators, and communication interfaces onto one die. The PIC18LF family uses a modified Harvard RISC architecture that executes most instructions in one instruction cycle and reaches up to 16 MIPS throughput; the LF prefix indicates a wide operating voltage range that supports low-voltage (LF) operation, which makes the part suitable for battery-powered applications.
Key features include a 48 MHz maximum oscillator input with a 16 MIPS core, nanoWatt XLP extreme-low-power technology for sleep currents in the nanoamp range, an on-chip 10-bit ADC with up to 17 channels, multiple Enhanced USART, MSSP (I2C/SPI), and capture/compare/PWM peripherals. The 256-byte EEPROM supports endurance of up to 1,000,000 erase/write cycles per Microchip datasheet characterization.
The PIC18LF24K22-E/SS uses Microchip's nanoWatt XLP technology that delivers typical sleep currents below 100 nA with retention and features such as ultra-low-power wake-up, system clock gating, and peripheral disable. The wide 1.8V to 3.6V VDD range combined with internal oscillator choices enables battery- or energy-harvesting designs that previously required an external oscillator.
Typical applications include low-battery sensor nodes, portable consumer devices, industrial control panels, USB HID peripherals, and home-automation or IoT endpoints. The combination of XLP sleep current, ADC, PWM, and a rich mix of serial interfaces makes it a flexible general-purpose 8-bit controller for both mains- and battery-powered products.
When designing with this device, ensure that the configured system clock (HS, XT, EC, internal LF-INTOSC) matches the selected VDD range and that the MCLR pin is properly biased (POR) for current voltage. Use ICSP programming on dedicated PGD/PGC pairs to retain the device in-circuit during firmware updates.
This page synthesizes distributor pricing, drop-in alternatives within the PIC18LF K22 family, and practical design notes that complement, but are not a substitute for, the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC18LF24K22-E/SS — 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 PIC18LF24K22-E/SS (cùng hình factor và footprint) — khác nhau ở Core Architecture, MSL Level, Operating Temperature, Package, ADC.
PIC18LF24K22-I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF24K22T-I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18F24K22-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF25K22-I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF23K22-I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC18LF24K22-E/SS Tỷ lệ tối đa & tính chất điện
| Device Family | PIC18LF XLP 18K |
| Core Architecture | 8-bit PIC RISC (modified Harvard) |
| Program Memory (Flash) | 16 KB (8K x 16) |
| Data RAM | 768 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 48 MHz (16 MIPS) |
| Operating Voltage Range | 1.8 V to 3.6 V |
| I/O Pins | 24 |
| ADC | 10-bit, up to 17 channels |
| Comparators | 2 |
| Timers | 8-bit/16-bit with CCP and ECCP |
| Communication | 2x EUSART, 2x MSSP (I2C/SPI) |
| Hộp | 28-SSOP (5.30 mm body width) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | -40 to +125 °C (E = Extended) |
| Low-Power Technology | nanoWatt XLP |
| Cấp MSL | 1 |
| Trạng thái RoHS | Compliant |
| Programming | ICSP (In-Circuit Serial Programming) |
Cấu hình chân PIC18LF24K22-E/SS
| Chân 1 | RA0/AN0/C1IN0- — Digital I/O / Analog input 0 / Comparator 1 inverting input |
| Chân 2 | RA1/AN1/C1IN1-/C2IN3- — Digital I/O / Analog input 1 / Comparator inputs |
| Chân 3 | RA2/AN2/C2IN1-/VREF- — Digital I/O / Analog input 2 / Comparator / ADC VREF- |
| Chân 4 | RA3/AN3/C1IN1+/VREF+ — Digital I/O / Analog input 3 / Comparator / ADC VREF+ |
| Chân 5 | RA4/C1OUT/T0CKI/SRNQ — Digital I/O / Comparator 1 output / Timer0 clock / SR latch |
| Chân 6 | RA5/AN4/C2OUT/SRQ — Digital I/O / Analog input 4 / Comparator 2 output / SR latch |
| Chân 7 | RA6/OSC2/CLKOUT — Digital I/O / Oscillator output / Clock output |
| Chân 8 | RA7/OSC1/CLKIN — Digital I/O / Oscillator input / External clock |
| Chân 9 | VSS — Ground reference |
| Chân 10 | VDD — Positive power supply |
| Chân 11 | RB0/AN12/INT0/FLT0/SRI — Digital I/O / Analog 12 / External interrupt 0 / PWM fault |
| Chân 12 | RB1/AN10/C1IN3-/P1C — Digital I/O / Analog 10 / ECCP 1 channel |
| Chân 13 | RB2/AN8/C2IN2-/P1B — Digital I/O / Analog 8 / ECCP 1 channel |
| Chân 14 | RB3/AN9/C1IN2-/C2IN2+/P1C — Digital I/O / Analog 9 / ECCP 1 channel |
| Chân 15 | RB4/AN11/SDA/SDI/SRI — Digital I/O / Analog 11 / I2C SDA / SPI SDI |
| Chân 16 | RB5/AN13/SCL/SCK/SRQ — Digital I/O / Analog 13 / I2C SCL / SPI SCK |
| Chân 17 | RB6/PGC — Digital I/O / ICSP clock |
| Chân 18 | RB7/PGD — Digital I/O / ICSP data |
| Chân 19 | VSS — Ground reference |
| Chân 20 | VDD — Positive power supply |
| Chân 21 | RC0/P2A/SOSCO — Digital I/O / ECCP 2 channel / SOSC oscillator out |
| Chân 22 | RC1/P2B/SOSCI — Digital I/O / ECCP 2 channel / SOSC oscillator in |
| Chân 23 | RC2/AN14/P2D/P1D/CCP1 — Digital I/O / Analog 14 / ECCP channel |
| Chân 24 | RC3/AN15/P2C/P1C — Digital I/O / Analog 15 / ECCP channel |
| Chân 25 | RC4/P1B/T3CKI — Digital I/O / ECCP channel / Timer3 clock |
| Chân 26 | RC5/P1A/CCP2 — Digital I/O / ECCP channel |
| Chân 27 | RC6/TX/CK/AN17 — Digital I/O / EUSART TX / EUSART CK / Analog 17 |
| Chân 28 | RC7/RX/DT/AN16 — Digital I/O / EUSART RX / EUSART DT / Analog 16 |
Ứng dụng tiêu biểu
PIC18LF24K22-E/SS phù hợp cho 7 Áp dụngs: Battery-Powered Sensor Node, USB HID Peripheral, Industrial Control Panel, Home Automation / IoT Endpoint, Portable Consumer Device, Automotive Body Electronics (AEC-Q100), Energy Harvesting Wireless Switch.
Battery-Powered Sensor Node
The PIC18LF24K22-E/SS suits battery-powered sensor nodes because its 1.8-3.6V VDD range pairs with nanoWatt XLP sleep currents of ~9 nA typical to extend coin-cell or 2xAA lifetime beyond years. With a 48 MHz HFINTOSC and 16 MIPS throughput, the MCU can wake, sample sensors via its 10-bit ADC across 17 channels, transmit via the EUSART, and re-enter XLP sleep in under a millisecond. The 256-byte EEPROM lets the node store calibration constants across resets without external memory.
Được đề xuất
USB HID Peripheral
The PIC18LF24K22-E/SS is well-suited to low-speed USB Human Interface Device applications when paired with an external USB transceiver. Its 16 MIPS throughput handles HID report generation, and the 16 KB Flash holds a full HID descriptor plus custom firmware. The 10-bit ADC captures analog control inputs (pots, sliders) while 2 EUSARTs handle debug and external modules. Designers note that this part does not include an integrated USB peripheral; for native USB choose PIC18F14K50.
Được đề xuất
Industrial Control Panel
The PIC18LF24K22-E/SS supports industrial control panels because its -40 to +125 °C E temperature grade and 1.8-3.6V operating range meet harsh-environment requirements. Its Enhanced Capture/Compare/PWM modules drive motor control signals, while its 10-bit ADC reads back panel sensors. The wide VDD range tolerates regulated 24V-to-3.3V industrial rails with proper power supply design. ICSP allows in-field firmware updates via dedicated programming lines.
Được đề xuất
Home Automation / IoT Endpoint
The PIC18LF24K22-E/SS fits home automation endpoints because its nanoWatt XLP technology delivers ~9 nA sleep current for battery-powered wireless sensor nodes that report temperature, humidity, or motion. The MSSP (I2C/SPI) peripherals interface to sensors and radios, while 2 EUSARTs can bridge to a host controller or external Wi-Fi/BLE module. The 16 KB Flash supports Zigbee or LoRaWAN stack variants from Microchip's MLA library.
Được đề xuất
Portable Consumer Device
The PIC18LF24K22-E/SS fits portable consumer electronics such as fitness bands, e-readers, or remote controls because the 1.8-3.6V VDD range allows direct Li-ion battery connection and the nanoWatt XLP technology minimizes sleep current. The 24 I/O pins support 41-segment LCD/LED display drives, while the 16 MIPS CPU handles UI updates and BLE stack integration. The 28-SSOP package is thin enough for wearable form factors.
Được đề xuất
Automotive Body Electronics (AEC-Q100)
The PIC18LF24K22-E/SS -E grade covers -40 to +125 °C suitable for non-safety automotive body modules such as seat controllers, mirror adjusters, or ambient lighting. For AEC-Q100 qualified automotive applications, designers should consider the PIC18F46K22-I/PT or PIC18F66K22 variants explicitly rated to AEC-Q100. The wide VDD and multiple PWM channels of the K22 family support motor and LED drive in body-electronics designs.
Được đề xuất
Energy Harvesting Wireless Switch
The PIC18LF24K22-E/SS fits energy-harvesting wireless switches because its nanoWatt XLP sleep current (typically below 100 nA) allows operation from the few microjoules harvested by a piezo press or solar cell. The wide 1.8-3.6V VDD range accepts variable supercapacitor voltages, and the 16 MIPS CPU is fast enough to wake, transmit a packet via the EUSART, and re-enter sleep before the energy reservoir drains. EEPROM stores network pairing data without battery backup.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18LF24K22-E/SS — 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 | PIC18LF24K22-I/SS | PIC18LF24K22T-I/SS | PIC18F24K22-I/SS | PIC18LF25K22-I/SS | PIC18LF23K22-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Program Flash | 16 KB | 16 KB | 16 KB | 16 KB | 32 KB (+100%) | 8 KB (-50%) |
| Data RAM | 768 bytes | 768 bytes | 768 bytes | 768 bytes | 1024 bytes (+33%) | 512 bytes (-33%) |
| Operating Voltage Range | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V (LF) | 2.3 V to 5.5 V (F - +1.9V wider) | 1.8 V to 3.6 V (LF) | 1.8 V to 3.6 V (LF) |
| Maximum Frequency | 48 MHz (16 MIPS) | 48 MHz (16 MIPS) | 48 MHz (16 MIPS) | 48 MHz (16 MIPS) | 48 MHz (16 MIPS) | 48 MHz (16 MIPS) |
| Operating Temperature | -40 to +125 °C (E grade) | -40 to +85 °C (I grade) | -40 to +85 °C (I grade) | -40 to +85 °C (I grade) | -40 to +85 °C (I grade) | -40 to +85 °C (I grade) |
| Low-Power Technology | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP | nanoWatt XLP |
Bảo phân biệt quan trọng
- Extended -40 to +125 °C temperature range (vsPIC18LF24K22-I/SS)
- Wide 1.8 V to 3.6 V VDD range for battery and 3.3V systems (vsPIC18F24K22-I/SS)
- Higher Flash density than lower-cost LF23K22 (vsPIC18LF23K22-I/SS)
Ghi chú thiết kế
Decouple VDD/VSS pairs (pins 10/9 and 20/19) with 100 nF ceramic capacitors placed within 3 mm of each VDD pin per Microchip DS40001412H. Add a bulk 1-10 uF tantalum or ceramic capacitor on the main supply rail. Use separate analog and digital supply tracks (AVDD/AVSS) when the ADC is active to minimize digital switching noise coupling into analog readings. For nanoWatt XLP designs, enable unused peripherals to their lowest-power state and disable the ADC during sleep to reach the ~9 nA sleep current figure.
Estimated: At 48 MHz / 16 MIPS full-load operation, the PIC18LF24K22-E/SS typically draws ~9 mA active current. With VDD = 3.3 V, power dissipation is ~30 mW per Microchip datasheet DS40001412H. The 28-SSOP package has thermal resistance theta_JA of approximately 80 °C/W, so the junction would only rise ~2-3 °C above ambient at room temperature. No heatsinking is required for typical 8-bit MCU loads. Designers should still verify thermal margin in -40 to +125 °C E grade applications where ambient can approach the upper limit.
Route the OSC1/OSC2 (RA7/RA6) traces short and symmetric to ground when using a crystal oscillator, placing the load capacitors within 2 mm of the OSC pins. Avoid routing digital switching signals under or near the analog AVSS/AVDD tracks to minimize ADC noise. The ICSP PGC/PGD pins (RB6/RB7) must be brought out to a programming header with no series resistors; a 10 kΩ pull-up on MCLR is recommended for normal operation. Leave RA7/OSC1 and RA6/OSC2 accessible even when using the internal oscillator, in case a crystal is needed.
Always read the device-specific silicon errata before committing to the PIC18LF24K22-E/SS - some ADC and CCP modules have documented errata that require workarounds. Do not exceed the absolute maximum VDD of 3.6 V on the LF variant; the 5 V-tolerant PIC18F24K22-I/SS must be selected if 5 V is required. The MCLR pin must never be left floating; tie to VDD through a 10 kΩ resistor to avoid spurious resets. Configure unused I/O pins as outputs and drive them low to minimize current leakage, especially in nanoWatt XLP designs.
Thông tin tuân thủ
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - choose AEC-Q100 qualified parts like PIC18F46K22-I/PT for automotive.
