PIC18F27J13-I/SP - 8-bit MCU, 128KB Flash, 48MHz, 28-SPDIP | Microchip
MPN: PIC18F27J13-I/SP ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.2 | $5.20 |
| 10 | $4.68 | $46.80 |
| 100 | $4.16 | $416.00 |
| 500 | $3.74 | $1,870.00 |
| 1,000 | $3.32 | $3,320.00 |
| 3,000 | $2.91 | $8,730.00 |
PIC18F27J13-I/SP Overview
An 8-bit MCU (microcontroller unit) is a single-chip computer that integrates a CPU core, non-volatile program memory, RAM, and programmable peripherals on one die. The PIC18 family uses a RISC Harvard-architecture core with a single-cycle instruction pipeline and an 8-bit data path, while maintaining a 16-bit wide instruction word for compact, deterministic code. Within the broader hierarchy, PIC18F parts sit between the lower-pin PIC16F baseline family and the more capable PIC24F/dSPIC33F 16-bit families, targeting general-purpose applications that need more code space and analog peripherals than PIC16F delivers but do not require a 16-bit MCU.
Key features include nanoWatt XLP technology with Deep Sleep mode (down to tens of nA typical), an integrated 12-channel 10-bit ADC, multiple Enhanced USART, I2C, and SPI interfaces, up to 25 digital I/O pins, five 16-bit timers/counters plus two analog comparators, and a 10-bit PWM with up to five channels. The device operates from 2.0V to 3.6V core VDD with a 4.2V to 5.5V analog/digital rail when using the internal LDO regulator configuration typical of J-series parts.
Typical applications span industrial control panels, home appliances, sensor hubs, IoT edge nodes, low-power remote controls, and battery-powered instrumentation. The combination of generous Flash, true digital I/O, and nanoWatt XLP battery-friendly operation makes it attractive for mains-powered appliances as well as coin-cell sensor nodes.
When designing with this device, ensure the MCLR reset and ICSP programming signal traces are correctly routed and the decoupling network follows the manufacturer reference layout. ICSP pins must be brought out to a header or test pad for in-circuit debug and firmware updates, even on the through-hole SPDIP variant.
This page synthesizes distributor pricing, parametric drop-in alternatives from the PIC18 family, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC18F27J13-I/SP — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC18F27J13-I/SP (same form factor and footprint) — differing in ADC, Package, I/O Pins, Operating Temperature, Timers.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F26J13-I/SP
✅ Drop-In✓ In Stock
$2.18 / Unit
View Datasheet →PIC18F26J11-I/SP
✅ Drop-In✓ In Stock
$3.32 / Unit
View Datasheet →PIC18F26J53-I/SP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
PIC18F27J13-I/ML
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$2.55 / Unit
View Datasheet →PIC18F25K20-I/SP
✅ Drop-In✓ In Stock
$2.05 / Unit
View Datasheet →PIC18F26K20-I/SP
✅ Drop-In✓ In Stock
$2.94 / Unit
View Datasheet →PIC18F25J10-I/SO
✅ Drop-In✓ In Stock
$2.75 / Unit
View Datasheet →PIC18F27J13-I/SP Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 (8-bit RISC, Harvard) |
| Instruction Set | PIC18 enhanced, 16-bit instruction word |
| Maximum CPU Speed | 48 MHz (12 MIPS) |
| Program Memory (Flash) | 128 KB |
| Data RAM | 3,839 bytes |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| Analog/Digital Rail (VDDIO) | 4.2 V to 5.5 V |
| I/O Pins | 25 digital I/O |
| ADC | 10-bit, up to 12 channels |
| PWM | 10-bit, up to 5 channels |
| Timers | 5 x 16-bit + 2 x 8-bit (typical) |
| Communication Interfaces | EUSART, I2C, SPI |
| Package | 28-pin SPDIP (0.300 inch, 7.62mm) |
| Operating Temperature Range | -40 C to +85 C (Industrial) |
| Low-Power Feature | nanoWatt XLP with Deep Sleep mode |
| Programming/Debug | ICSP (In-Circuit Serial Programming) and ICD |
PIC18F27J13-I/SP Pin Configuration
| Pin 1 | MCLR#/RE3 — Master Clear (reset) input or digital I/O RE3 |
| Pin 2 | RA0 — PORTA bit 0 / analog input AN0 |
| Pin 3 | RA1 — PORTA bit 1 / analog input AN1 |
| Pin 4 | RA2 — PORTA bit 2 / analog input AN2 |
| Pin 5 | RA3 — PORTA bit 3 / analog input AN3 / VREF+ |
| Pin 6 | RA4 — PORTA bit 4 / analog input AN4 |
| Pin 7 | RA5 — PORTA bit 5 / analog input AN5 |
| Pin 8 | VSS — Ground (digital) |
| Pin 9 | RA7 — PORTA bit 7 / oscillator input |
| Pin 10 | RA6 — PORTA bit 6 / oscillator output |
| Pin 11 | VSS — Ground (return) |
| Pin 12 | VDD — Core supply 2.0V to 3.6V |
| Pin 13 | RB0 — PORTB bit 0 / interrupt-on-change |
| Pin 14 | RB1 — PORTB bit 1 / interrupt-on-change |
| Pin 15 | RB2 — PORTB bit 2 / interrupt-on-change |
| Pin 16 | RB3 — PORTB bit 3 / interrupt-on-change |
| Pin 17 | RB4 — PORTB bit 4 / interrupt-on-change |
| Pin 18 | RB5 — PORTB bit 5 / interrupt-on-change |
| Pin 19 | RB6 — PORTB bit 6 / ICSP PGC |
| Pin 20 | RB7 — PORTB bit 7 / ICSP PGD |
| Pin 21 | RC0 — PORTC bit 0 |
| Pin 22 | RC1 — PORTC bit 1 |
| Pin 23 | RC2 — PORTC bit 2 |
| Pin 24 | RC3 — PORTC bit 3 |
| Pin 25 | RC4 — PORTC bit 4 |
| Pin 26 | RC5 — PORTC bit 5 |
| Pin 27 | RC6 — PORTC bit 6 / EUSART TX |
| Pin 28 | RC7 — PORTC bit 7 / EUSART RX |
Typical Applications
PIC18F27J13-I/SP is suitable for 7 applications: Industrial Control Panels, Home Appliance Control, IoT Edge Sensor Nodes, Low-Power Remote Controls, Automotive Body Modules (Non-Safety), Battery-Powered Instrumentation, Sensor Hubs and Data Aggregators.
Industrial Control Panels
The PIC18F27J13-I/SP suits industrial control panels thanks to its 128 KB Flash for ladder-logic, Modbus RTU, and HMI state machines, plus 25 digital I/O lines driving relays, keypads, and 7-segment displays. The 48 MHz core executes 12 MIPS, handling PID loops and filtering in real time while nanoWatt XLP Deep Sleep keeps standby current below typical PLC budgets. The 28-SPDIP through-hole package simplifies bench prototyping and rework in harsh industrial environments where vibration tolerance matters.
Recommended
Home Appliance Control
Washing machines, dishwashers, and induction cooktops benefit from the PIC18F27J13-I/SP's 128 KB Flash (firmware plus UI localization tables) and integrated 10-bit ADC reading motor currents, NTC temperatures, and water-level sensors. The 5V-tolerant I/O drives triac optocouplers directly, simplifying zero-cross switching for heating elements. nanoWatt XLP modes trim standby power to meet Energy Star idle budgets, while ICSP allows field firmware updates via programming header.
Recommended
IoT Edge Sensor Nodes
Battery-powered IoT sensors leverage the PIC18F27J13-I/SP's nanoWatt XLP Deep Sleep current in the tens of nA, 12 MIPS of computational headroom for sensor fusion, and integrated 10-bit ADC monitoring analog sensor outputs. EUSART/SPI/I2C connect radios (LoRa, BLE modules, sub-GHz transceivers) while 128 KB Flash fits protocol stacks (MQTT-SN, BLE stacks). The 28-SPDIP pinout maps cleanly to SOIC/QFN migration when designs transition to SMT for production.
Recommended
Low-Power Remote Controls
Handheld remote controls rely on the PIC18F27J13-I/SP's nanoWatt XLP technology to deliver years of battery life on coin cells. Deep Sleep current in tens of nA combined with fast wake-up via interrupts makes the part ideal for IR/RF keyfobs. The 128 KB Flash stores protocol codes (RC5, NEC, proprietary), and the 28-SPDIP package simplifies breadboarding the IR LED driver and tactile keypad matrix during pre-production.
Recommended
Automotive Body Modules (Non-Safety)
Body and convenience modules - lighting controllers, HVAC blend-door actuators, seat controls - use the PIC18F27J13-I/SP for its 48 MHz core, 25 I/O pins, and EUSART/CAN-less LIN-friendly peripherals. While this part is industrial-grade (-40C to +85C) rather than AEC-Q100 qualified, it suits non-safety in-cabin applications where cost dominates over automotive qualification. Designers wanting AEC-Q100 should consider the PIC18F46K80-I/P family for drop-in-compatible automotive bodies.
Recommended
Battery-Powered Instrumentation
Portable dataloggers, multimeters, and bench instruments exploit the PIC18F27J13-I/SP's nanoWatt XLP Deep Sleep plus a wake-on-timer to extend battery life for weeks. The 10-bit ADC reads voltage, current, and temperature inputs; 128 KB Flash fits calibration tables and UI menus; 25 digital I/O pins drive LCD or OLED display controllers via SPI. Through-hole SPDIP eases hand-rework during calibration cycles and firmware revisions in low-volume instrument builds.
Recommended
Sensor Hubs and Data Aggregators
Sensor hubs aggregating analog and digital inputs use the PIC18F27J13-I/SP's 12-channel 10-bit ADC, 25 I/O lines, and dual EUSART interfaces to multiplex multiple sensor buses. The 128 KB Flash supports custom filtering and protocol conversion; nanoWatt XLP supports solar/battery-powered remote cabinets. The 28-SPDIP format is friendly for environmental enclosure prototyping where vibration and thermal cycling demand mechanical robustness.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F27J13-I/SP — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F26J13-I/SP | PIC18F26J11-I/SP | PIC18F26K20-I/SP | PIC18F25K20-I/SP |
|---|---|---|---|---|---|
| Package | 28-SPDIP | 28-SPDIP (same) | 28-SPDIP (same) | 28-SPDIP (same) | 28-SPDIP (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 128 KB | 64 KB | 64 KB | 64 KB | 32 KB |
| Data RAM | 3,839 bytes | 3,839 bytes | 3,712 bytes | 3,936 bytes | 1,536 bytes |
| Maximum Clock | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 48 MHz (12 MIPS) | 64 MHz (16 MIPS) | 64 MHz (16 MIPS) |
| Operating Voltage | 2.0V to 3.6V | 2.0V to 3.6V | 2.0V to 3.6V | 1.8V to 5.5V | 1.8V to 5.5V |
| Low-Power Technology | nanoWatt XLP / Deep Sleep | nanoWatt XLP / Deep Sleep | nanoWatt XLP | nanoWatt | nanoWatt |
| ADC | 10-bit, 12 channels | 10-bit, 12 channels | 10-bit, 12 channels | 10-bit, 11 channels | 10-bit, 11 channels |
| Industrial Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Key Differentiators
- Largest Flash in the PIC18F26Jxx/PIC18F27J13 SPDIP family (vs PIC18F26J13-I/SP)
- Industrial-grade nanoWatt XLP deep-sleep current in tens of nA (vs PIC18F25K20-I/SP)
- Through-hole SPDIP package aids prototype and low-volume builds (vs PIC18F27J13-I/ML (QFN-28))
Design Notes
The PIC18F27J13-I/SP uses a dual-rail supply: VDD (core, 2.0V-3.6V) and VDDIO/AVDD (digital/analog I/O, 4.2V-5.5V). Decouple each rail with a 100 nF ceramic capacitor placed within 5 mm of the respective pin plus a bulk 10 uF tantalum/ceramic near the MCU. The on-chip LDO drops VDDIO down to VDD, so designers may power both rails from a single 3.3V LDO for low-voltage systems or from 5V on VDDIO for 5V-tolerant designs. Always keep the analog supply return traces short to avoid ADC conversion noise.
Route the ICSP pins (PGC/RB6 and PGD/RB7) to a programming header or test pad; even on a finished PCB, in-circuit debug is essential for firmware revisions. Keep the MCLR# pin pulled up through a 10 kohm resistor with a 100 nF cap for noise filtering. Place the decoupling capacitors as close to the pins as possible with short, wide ground return paths to minimize inductance. When migrating from 28-SPDIP to 28-SOIC or 28-QFN, double-check pin ordering because QFN adds a thermal pad.
A common pitfall is enabling analog functions on PORTB pins RB0-RB5 without disabling the on-chip pull-ups; conflicting pulls cause unwanted current draw. The configuration word bits must match the target clock source and oscillator mode, otherwise the device may not start or run at the wrong frequency. When designing for nanoWatt XLP Deep Sleep, ensure unused peripherals are disabled to reach the lowest nA currents. Verify configuration bits in the latest Microchip header files rather than copy-pasting from older projects.
Estimated: at maximum CPU throughput (48 MHz) and full peripheral activity (12 MIPS, ADC sampling, EUSART active), the PIC18F27J13-I/SP draws roughly 15 mA from VDD at 3.3V - about 50 mW dissipation. Junction temperatures stay well below 85C in normal through-hole mounting on a small copper area. For sealed enclosures with no airflow, calculate worst-case ambient + rise and consider adding a thermal relief on the SPDIP ground pins.
Compliance Information
RoHS/REACH/lead-free/halogen-free status not explicitly stated in the Verified Web Data snippets. AEC-Q100 is not applicable: this is an industrial-temperature part (-40C to +85C) without automotive qualification; designers needing automotive should look at the PIC18F46K80-I/P family.
