PIC18LF27J13-I/SS - 128KB Flash 48MHz 8-bit nanoWatt MCU | Microchip
MPN: PIC18LF27J13-I/SS ✓ Hoạt độngPIC18LF27J13-I/SS Tóm tắt
An 8-bit microcontroller is a programmable compute engine built around an 8-bit data path and Harvard architecture that separates program and data memories. PIC18 devices sit at the upper tier of Microchip's 8-bit PIC portfolio and offer the richest instruction set (75 instructions with optional extended mode), the largest memory densities, and the widest range of analog and communication peripherals in the 8-bit family. Designers choose 8-bit MCUs for cost-sensitive, low-power applications where the I/O count, code density and BOM size justify staying below 32-bit architectures.
Key features that distinguish the PIC18LF27J13 include 128KB self-programmable Flash (64K x 16 words), 4KB SRAM, 256 bytes of EEPROM, deep-sleep current typically below 100 nA, and a peripheral pin-select (PPS) engine that lets digital peripherals be remapped onto a wide choice of physical pins. The 12-bit/10-channel ADC, two analog comparators, and a hardware RTCC with calendar mode round out the analog and timing features. Multiple power-managed operating modes - run, idle, sleep, deep sleep, and ultra-low-power wake - enable battery-life targets well beyond 1 year on a single CR2032 cell.
Architecturally the chip pairs an 8-bit modified-RISC core with a wide peripheral set, internal 31 kHz and 8 MHz oscillators (plus a 48 MHz PLL on the F-variant), and a flexible 28-pin I/O mapping scheme. The 4.2-5.5V supply range simplifies integration into industrial sensor nodes, USB-CDC bridges, and 5V-rail mains-powered appliances without external level translation.
Typical applications include industrial sensor conditioning with on-chip 12-bit ADC, low-power IoT sensor nodes using nanoWatt XLP modes, USB-CDC virtual COM-port bridges (PIC18F variant), motor-control signal pre-processing, and metering or measurement instruments. In each case the same-package drop-in alternatives on this page give designers multiple sourcing options without PCB rework.
When designing with this part, pay close attention to PPS mapping - assigning I2C or UART to desired pins requires careful review of the PPS lock sequence in the datasheet. Use the ICD 3 or PICkit 4 debugger for production-intent bring-up and never rely on internal RC alone for asynchronous serial links.
This page synthesizes distributor pricing, drop-in SSOP-28 alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC18LF27J13-I/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 PIC18LF27J13-I/SS (cùng hình factor và footprint) — khác nhau ở ADC, Package, Operating Temperature, Timers, Core Architecture.
PIC18LF27J13T-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF27J13-I/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF26J13-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF25K83-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF26K83-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC18LF27J13-I/SS Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC18 (8-bit modified RISC) |
| Program Memory (Flash) | 128 KB (64K x 16) |
| Data SRAM | 4 KB |
| Data EEPROM | 256 bytes |
| Maximum CPU Speed | 48 MHz (12 MIPS) |
| Supply Voltage (VDD) | 2.0 V to 3.6 V (LF variant, LFP /F note: 2V-3.6V) |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| ADC | 10 channels, 12-bit |
| Comparators | 2 analog comparators |
| USART | 2 |
| SPI | 2 |
| I2C | 1 (MSSP) |
| Digital I/O Pins | 22 (max, package dependent) |
| Timers | 5 (Timer0/1/2/3 + RTCC) |
| Hộp | 28-SSOP (5.30 mm body) |
| Kiểu lắp đặt | Surface Mount |
| Low-Power Technology | nanoWatt XLP (deep sleep < 100 nA typical) |
| Số chân | 28 |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes (SSOP package) |
Cấu hình chân PIC18LF27J13-I/SS
| Chân 1 | RA0/AN0 — I/O/Analog - PPS capable |
| Chân 2 | RA1/AN1 — I/O/Analog - PPS capable |
| Chân 3 | RA2/AN2 — I/O/Analog - PPS capable |
| Chân 4 | RA3/AN3 — I/O/Analog - PPS capable |
| Chân 5 | RA4/AN4 — I/O/Analog - PPS capable |
| Chân 6 | RA5/AN5 — I/O/Analog - PPS capable |
| Chân 7 | RA6 — I/O - PPS capable |
| Chân 8 | RA7 — I/O - PPS capable |
| Chân 9 | VSS — Ground |
| Chân 10 | VDD — Positive supply |
| Chân 11 | RB0/AN8 — I/O/Analog - PPS capable |
| Chân 12 | RB1/AN9 — I/O/Analog - PPS capable |
| Chân 13 | RB2 — I/O - PPS capable |
| Chân 14 | RB3 — I/O - PPS capable |
| Chân 15 | RB4 — I/O - PPS capable |
| Chân 16 | RB5 — I/O - PPS capable |
| Chân 17 | RB6/ICSPCLK — I/O - PPS / ICSP clock |
| Chân 18 | RB7/ICSPDAT — I/O - PPS / ICSP data |
| Chân 19 | RC0 — I/O - PPS capable |
| Chân 20 | RC1 — I/O - PPS capable |
| Chân 21 | RC2 — I/O - PPS capable |
| Chân 22 | RC3 — I/O - PPS capable |
| Chân 23 | RC4 — I/O - PPS capable |
| Chân 24 | RC5 — I/O - PPS capable |
| Chân 25 | RC6 — I/O - PPS capable |
| Chân 26 | RC7 — I/O - PPS capable |
| Chân 27 | VSS — Ground |
| Chân 28 | VDD — Positive supply |
Ứng dụng tiêu biểu
PIC18LF27J13-I/SS phù hợp cho 6 Áp dụngs: Battery-Powered IoT Sensor Nodes, Industrial Sensor Conditioning, USB CDC Virtual COM-Port Bridges, Home Appliance Control Panels, Smart Metering and Data Logging, Motor Control Signal Pre-Processing.
Battery-Powered IoT Sensor Nodes
The PIC18LF27J13-I/SS is engineered for low-duty-cycle wireless sensor nodes operating from a single CR2032 coin cell or two AA alkaline cells. Its nanoWatt XLP technology delivers deep-sleep current well below 100 nA with RTCC active, while the 48 MHz core provides 12 MIPS burst throughput for protocol-stack processing. The on-chip 12-bit ADC eliminates external signal-conditioning ICs in many sensor paths. With 128 KB Flash the node can hold a lightweight TCP/IP or LoRaWAN stack alongside application logic. Place the part in deep sleep between sensor reads to exceed 1-year battery life - the LF variant operates down to 2.0V, just above the cutoff of common primary cells.
Được đề xuất
Industrial Sensor Conditioning
In industrial 4-20 mA loop transmitters, RTD/thermocouple front-ends, and vibration monitoring equipment, the PIC18LF27J13-I/SS provides the 12-bit ADC and high-MIPS throughput required for digital filtering at a competitive BOM cost. The 10 ADC channels support multi-sensor input via SPI daisy-chain when more channels are needed. The peripheral pin-select (PPS) system allows flexible routing of analog and digital functions, simplifying PCB routing in tight enclosures. Combined with nanoWatt XLP sleep modes, the part can run for years on a single battery in wireless condition monitoring - the LF supply range integrates cleanly with 3.3V regulated rails.
Được đề xuất
USB CDC Virtual COM-Port Bridges
Use the PIC18F (not LF) variant for USB-based serial bridge designs - the 'F' part integrates a full-speed USB 2.0 device controller, 48 MHz PLL optimized for 48 MHz USB clock, and 128 KB of Flash for CDC class driver plus application logic. For 5V-referenced USB peripherals it pairs well with USBLC6-2SC6 transient protection. The 28-SSOP package offers compact, hand-solderable assembly. Designers migrating from FTDI-style bridges can use the CDC class to enumerate as a COM port with no host driver work. Note that the LF-variant PIC18LF27J13 operates only 2.0-3.6V and lacks USB - choose the F variant for USB functionality.
Được đề xuất
Home Appliance Control Panels
The PIC18LF27J13-I/SS fits washing-machine user interfaces, microwave oven controls, and dishwasher control boards thanks to its 28-pin footprint, robust -40 to +85 C industrial temperature rating, and ample peripheral set. The 12-bit ADC reads keypad matrix and analog sensors, the two USART interfaces connect to inverter drive controllers, and the hardware RTCC keeps wall-clock time during mains-disconnected standby. Its nanoWatt XLP deep sleep keeps standby power below 0.5W to meet global eco-regulations like EU 1275/2008 - engineer the PCB layout to keep the 31 kHz crystal loop tight for stable RTCC tick accuracy.
Được đề xuất
Smart Metering and Data Logging
In electricity/water/gas metering designs the PIC18LF27J13-I/SS combines the 12-bit ADC for precise sensor measurement, 128 KB Flash for time-stamped data buffers, and 4 KB RAM for running averages. The hardware RTCC with calendar mode handles tariff switching and time-of-use data logging without external RTC chips. Peripheral pin-select allows the same chip to be reused across gas, water, and heat meter variants with different I/O maps - reducing firmware fork maintenance burden. The LF variant's 2.0-3.6V VDD range matches 3.6V Lithium primary cells used in non-replaceable metering deployments.
Được đề xuất
Motor Control Signal Pre-Processing
The PIC18LF27J13-I/SS works alongside dedicated motor-control DSPs by handling low-latency feedback pre-processing tasks. The 12-bit ADC with hardware accumulators can sample back-EMF and current sense, while the CCP/ECCP module generates the control loop timer trigger. The peripheral pin-select (PPS) system lets designers choose the optimal pin for high-current Gate-Driver control signals, simplifying board layout. For small BLDC pumps and fans under 100 W the part can drive gates directly through complementary PWM outputs, while staying in deep sleep when motor idle - the nanoWatt XLP keeps standby losses minimal for compliance programs like ENERGY STAR.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC18LF27J13-I/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 | PIC18LF27J13T-I/SS | PIC18LF27J13-I/SP | PIC18LF26J13-I/SS | PIC18LF25K83-I/SS | PIC18LF26K83-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP - same | 28-SPDIP - different footprint | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Core Architecture | PIC18 (J-Series) | PIC18 (J-Series) | PIC18 (J-Series) | PIC18 (J-Series) | PIC18 (K-Series) | PIC18 (K-Series) |
| Flash Memory | 128 KB | 128 KB | 128 KB | 64 KB (-50%) | 32 KB (-75%) | 64 KB (-50%) |
| SRAM | 4 KB | 4 KB | 4 KB | 4 KB | 2 KB (-50%) | 4 KB |
| Maximum Clock | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) |
| Supply Voltage Range | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| CAN Bus | No | No | No | No | Yes (K-Series CAN) | Yes (K-Series CAN) |
Bảo phân biệt quan trọng
- Largest Flash density in the 8-bit LF J-Series PIC18 lineup at 28 pins (vsPIC18LF26J13-I/SS)
- J-Series PPS flexibility plus LF low-voltage range (vsPIC18LF25K83-I/SS)
- Lower-voltage operation than the F variant for battery-powered apps (vsPIC18F27J13-I/SS)
Ghi chú thiết kế
Estimated: at 48 MHz internal clock and 3.3 V VDD the PIC18LF27J13-I/SS draws ~12-15 mA active supply current. For battery-powered designs target deep-sleep mode between sensor reads; Microchip specifies deep-sleep current typically <100 nA with RTCC running from the secondary 31 kHz oscillator. Place a 100 nF decoupling capacitor on each VDD pin (pins 10 and 28) within 2 mm of the package pin, plus a bulk 4.7 uF on the supply rail. Do not exceed the maximum VDD slew rate during startup or the BOR may not stabilize - ramp VDD monotonically.
PPS (Peripheral Pin Select) routing on the PIC18LF27J13-I/SS lets you assign digital peripherals to most pins, but you MUST unlock the PPS sequence (IOLOCK = 0x55, IOLOCK = 0xAA, PPSLOCK = 0) before changing mapping registers, then re-lock to prevent runaway code from breaking peripheral mapping. Route the ICSP clock (RB6) and ICSP data (RB7) away from the 31 kHz crystal area on the PCB - keeping the crystal traces less than 5 mm and grounded guard traces on either side reduces frequency error to <20 ppm over the industrial temperature range.
Do not assume the LF (low-voltage) variant supports USB - only the 'F' PIC18F27J13 variants integrate the USB 2.0 controller. When porting firmware between LF and F parts verify the PPS modules used for USB are unconfigured in the LF build, otherwise the firmware will hang waiting for the non-existent USB clocks. Also note the LF can only clock to 48 MHz internal versus the F's 48 MHz PLL-from-48 MHz primary oscillator for USB; if your project needs USB upgrade, swap to the F variant rather than expecting recompile to bring it up.
Estimated: the SSOP-28 package has typical theta_JA of ~95 C/W on a standard 4-layer test board. At 15 mA active and 3.6 V the part dissipates ~54 mW; with self-heating of approximately 5.1 C above ambient this is comfortable up to 70 C ambient operation. For applications approaching 85 C industrial ambient, consider the 28-SPDIP (/SP variant) which has theta_JA near 70 C/W and better copper-area thermal extension. Do not skip PCB thermal relief on VDD pin via in your budget - SSOP-28 lead frames have measurable thermal resistance through the leads.
When running SPI at 10 MHz against on-chip peripherals, keep the SPI trace length below 25 mm and add 33 ohm series resistors at the source end for cleaner edges. The PIC18's PPS-redirected USART pins are especially sensitive to capacitive loading - target less than 25 pF to keep baud-rate error under 2% at 115200 bps with a 16 MHz internal clock. Decouple each VDD pair with 100 nF + 10 uF ceramic capacitors as close to the MCU as physically possible; this guideline is also in Microchip's generic MPLAB X IDE application notes for the PIC18 family.
Thông tin tuân thủ
RoHS compliance per Microchip product page. AEC-Q100 not qualified - industrial-grade only -40 to +85 C temperature range.
