PIC18F27J13T-I/SS - 8-bit 48MHz 128KB Flash MCU | Microchip
MPN: PIC18F27J13T-I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.78 | $4.78 |
| 10 | $4.3 | $43.00 |
| 100 | $3.83 | $383.00 |
| 500 | $3.41 | $1,705.00 |
| 1,000 | $3.04 | $3,040.00 |
PIC18F27J13T-I/SS Overview
What is a microcontroller (MCU)? An MCU is a small computer-on-a-chip that integrates a CPU core, non-volatile program memory (Flash), volatile working memory (RAM), and a rich set of peripherals such as ADC, timers, communication ports, and I/O. Microcontrollers sit at the heart of nearly every embedded system, from washing machines to industrial sensor nodes. The PIC18 family uses a modified Harvard 8-bit RISC architecture optimised for deterministic interrupt response and low-power operation.
Key features of the PIC18F27J13 include nanoWatt XLP technology for ultra-low sleep currents, a 12-bit A/D converter with up to 10 channels, multiple serial interfaces (UART, SPI, I2C), and a deep-sleep mode that drops current draw to nanoamp levels for battery-powered applications. The 128 KB Flash supports in-application self-programming, allowing firmware updates in the field.
Architecturally, the PIC18F27J13 pairs a wide 16-bit instruction path with 8-bit data paths, offering 12 MIPS throughput at 48 MHz. The XLP nanoWatt technology integrates multiple low-power modes, peripheral module disable, and an ultra-low-power watchdog to extend battery life in IoT edge devices.
Typical applications include portable consumer electronics, battery-powered sensor nodes, USB peripherals, home appliances, and low-cost industrial controllers. The deep-sleep mode makes it especially attractive for energy-harvesting and remote monitoring applications.
When designing with this part, pay close attention to the 2.0V-3.6V Vdd range (typical of the J-series) and configure the configuration bits early in the firmware to set the oscillator source and watchdog behaviour. Decouple Vdd with 100 nF and 10 uF capacitors placed within 5 mm of the supply pins.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC18F27J13T-I/SS — 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 PIC18F27J13T-I/SS (same form factor and footprint) — differing in Operating Temperature, ADC, Package, Program Memory (Flash), Communication.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F27J13-I/SS
✅ Drop-In✓ In Stock
$3.7 / Unit
View Datasheet →PIC18F26J13T-I/SS
✅ Drop-In✓ In Stock
$2.72 / Unit
View Datasheet →PIC18F26Q10-I/SS
✅ Drop-In✓ In Stock
$0.92 / Unit
View Datasheet →PIC18F26K83-I/SS
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC18F27J13T-I/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC18 (8-bit RISC, modified Harvard) |
| Program Memory (Flash) | 128 KB (64K x 16) |
| Data RAM | 4 KB |
| Maximum CPU Frequency | 48 MHz (12 MIPS) |
| Operating Voltage (Vdd) | 2.0 V to 3.6 V |
| Operating Temperature | -40 C to +85 C (Industrial) |
| ADC | 12-bit, up to 10 channels |
| Package | 28-pin SSOP (0.209" body, 5.30 mm) |
| Pin Count | 28 |
| Low-Power Technology | nanoWatt XLP |
| Communication Peripherals | UART, SPI, I2C |
| In-Circuit Programming | ICSP (In-Circuit Serial Programming) |
| Self-Programming | Yes (Flash, in-application) |
| Mounting Type | Surface Mount |
| MSL Level | 1 (unlimited) |
| RoHS Status | Compliant |
PIC18F27J13T-I/SS Pin Configuration
| Pin 1 | RA0/AN0 — Digital I/O / Analog input channel 0 |
| Pin 2 | RA1/AN1 — Digital I/O / Analog input channel 1 |
| Pin 3 | RA2/AN2 — Digital I/O / Analog input channel 2 |
| Pin 4 | RA3/AN3 — Digital I/O / Analog input channel 3 |
| Pin 5 | RA4 — Digital I/O |
| Pin 6 | RA5/AN4 — Digital I/O / Analog input channel 4 |
| Pin 7 | RA6/OSC2 — Digital I/O / Crystal oscillator output |
| Pin 8 | RA7/OSC1 — Digital I/O / Crystal oscillator input |
| Pin 9 | Vss — Ground |
| Pin 10 | VDD — Positive supply (2.0-3.6 V) |
| Pin 11 | RB0/INT0 — Digital I/O / External interrupt 0 |
| Pin 12 | RB1/INT1 — Digital I/O / External interrupt 1 |
| Pin 13 | RB2/INT2 — Digital I/O / External interrupt 2 |
| Pin 14 | RB3 — Digital I/O |
| Pin 15 | RB4 — Digital I/O |
| Pin 16 | RB5/PGM — Digital I/O / LVP programming |
| Pin 17 | RB6/PGC — Digital I/O / ICSP clock |
| Pin 18 | RB7/PGD — Digital I/O / ICSP data |
| Pin 19 | Vss — Ground |
| Pin 20 | VDD — Positive supply (2.0-3.6 V) |
| Pin 21 | RC0 — Digital I/O |
| Pin 22 | RC1 — Digital I/O |
| Pin 23 | RC2 — Digital I/O |
| Pin 24 | RC3 — Digital I/O |
| Pin 25 | RC4 — Digital I/O |
| Pin 26 | RC5 — Digital I/O |
| Pin 27 | RC6 — Digital I/O / TX |
| Pin 28 | RC7 — Digital I/O / RX |
Typical Applications
PIC18F27J13T-I/SS is suitable for 6 applications: Battery-Powered IoT Sensor Nodes, USB Human Interface Devices, Home Appliance Control, Industrial Sensor Transmitters, Portable Consumer Electronics, Low-Cost Motor Control.
Battery-Powered IoT Sensor Nodes
The PIC18F27J13T-I/SS is well matched to battery-powered IoT sensor nodes thanks to its nanoWatt XLP technology and deep-sleep mode that drops current draw to nanoamp levels. The 128 KB Flash comfortably stores a duty-cycled sensor firmware plus over-the-air update staging area, while the 12-bit ADC digitizes temperature, humidity, or analog sensor outputs directly. Operating from 2.0-3.6 V at 48 MHz (12 MIPS), the device delivers enough compute for edge filtering while preserving multi-year coin-cell battery life when most cycles are spent in deep sleep.
Recommended
USB Human Interface Devices
The PIC18F27J13T-I/SS supports USB 2.0 full-speed device operation through its integrated USB peripheral and internal 48 MHz oscillator, eliminating the need for an external crystal in many designs. With 128 KB Flash, designers can include the Microchip USB stack plus HID, CDC, or custom class drivers. The 28-SSOP package fits compact HID peripherals such as keyboards, mice, gamepads, and custom input devices. The wide 2.0-3.6 V supply range simplifies USB bus-powered designs with on-board 3.3 V regulation.
Recommended
Home Appliance Control
Home appliances such as washing machines, microwave ovens, and coffee makers benefit from the PIC18F27J13T-I/SS's industrial -40C to +85C temperature range, mature PIC18 toolchain, and generous 128 KB Flash for user-interface state machines. The 12-bit ADC reads sensor inputs (temperature, water level, motor current) with 1.2 mV resolution at 3.3 V, while PWM peripherals drive motor control and triac-fired heater loads. nanoWalt XLP standby modes reduce idle power in compliance with energy-star appliance requirements.
Recommended
Industrial Sensor Transmitters
The PIC18F27J13T-I/SS handles 4-20 mA industrial loop transmitters, HART-modem-enabled field sensors, and Modbus RTU remote terminal units with its hardware UART plus SPI/I2C for digital sensor interfaces. The 48 MHz CPU runs at 12 MIPS, sufficient for floating-point calibration math and protocol stacks. Operating from 2.0-3.6 V, the MCU pairs with industrial 24 V loop supplies via a low-dropout regulator. The 128 KB Flash supports encrypted bootloader firmware for secure field updates.
Recommended
Portable Consumer Electronics
Portable consumer products such as remote controls, fitness bands, and electronic toys leverage the PIC18F27J13T-I/SS for its compact 28-SSOP footprint, low cost, and low-power operation. The 128 KB Flash holds user-interface firmware, audio waveform samples for simple buzzers, and capacitive-touch sensing libraries. The 12 MIPS CPU drives segmented LCDs through peripheral-managed waveforms without CPU overhead, freeing cycles for wireless protocol handling when paired with an external sub-GHz or BLE module.
Recommended
Low-Cost Motor Control
The PIC18F27J13T-I/SS provides adequate compute for brushed DC motor control, small BLDC sensorless commutation, and stepper sequencing in low-cost appliances. With PWM, CCP, and timer peripherals, designers can drive H-bridges and half-bridges directly via gate drivers. The 12-bit ADC samples back-EMF or current-sense amplifier outputs at rates up to 100 ksps, supporting FOC algorithms on smaller motors. The industrial temperature range supports under-hood automotive and outdoor equipment.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F27J13T-I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F27J13-I/SS | PIC18F27J13T-I/ML | PIC18F27J13-I/ML | PIC18F26J13T-I/SS | PIC18F26Q10-I/SS | PIC18F26K83-I/SS |
|---|---|---|---|---|---|---|---|
| Package | 28-SSOP (0.209") | 28-SSOP - same | 28-QFN - different footprint | 28-QFN - different footprint | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 128 KB | 128 KB - identical | 128 KB - identical | 128 KB - identical | 64 KB (-50%) | 64 KB (-50%) | 64 KB (-50%) |
| RAM | 4 KB | 4 KB - identical | 4 KB - identical | 4 KB - identical | 4 KB - identical | 3.5 KB | 2 KB |
| Maximum CPU Frequency | 48 MHz (12 MIPS) | 48 MHz - identical | 48 MHz - identical | 48 MHz - identical | 48 MHz - identical | 64 MHz | 64 MHz |
| Operating Voltage | 2.0-3.6 V | 2.0-3.6 V - identical | 2.0-3.6 V - identical | 2.0-3.6 V - identical | 2.0-3.6 V - identical | 1.8-5.5 V (wider) | 2.3-5.5 V (wider) |
| Operating Temperature | -40C to +85C | -40C to +85C - identical | -40C to +85C - identical | -40C to +85C - identical | -40C to +85C - identical | -40C to +85C - identical | -40C to +125C (extended) |
| ADC Resolution | 12-bit | 12-bit - identical | 12-bit - identical | 12-bit - identical | 12-bit - identical | 12-bit - identical | 12-bit - identical |
| Low-Power Technology | nanoWatt XLP | nanoWatt XLP - identical | nanoWatt XLP - identical | nanoWatt XLP - identical | nanoWatt XLP - identical | eXtreme Low Power (XLP) | nanoWatt XLP |
Key Differentiators
- Largest Flash in the 28-pin PIC18F27J13 J-series at 128 KB (vs PIC18F26J13T-I/SS)
- Industrial-grade operating temperature range (vs PIC18F26K83-I/SS)
- nanoWalt XLP deep-sleep current draw to nanoamp levels (vs PIC18F26Q10-I/SS)
Design Notes
Estimated: at Vdd = 3.3 V and active CPU at 48 MHz, the PIC18F27J13T-I/SS draws approximately 8-12 mA. In deep sleep with XLP enabled, current drops to tens of nanoamps. Always place a 100 nF ceramic decoupling capacitor within 5 mm of each Vdd pin (pins 10 and 20), and add a bulk 10 uF tantalum or ceramic capacitor on the same rail. Designers targeting battery life must configure the configuration bits to select the internal 48 MHz HFINTOSC source rather than a slower crystal, otherwise the device cannot exit deep sleep cleanly.
For the 28-SSOP (0.209" body width) package, use a 0.65 mm pitch land pattern with 1.7 mm pad width per JEDEC MO-150. Route ICSP signals PGC (RB6) and PGD (RB7) as short traces (< 50 mm) and avoid crossing them with high-current switching nodes. The 28-SSOP has no exposed thermal pad, so no thermal via stitching is required. For high-noise environments, add a guard ring around the analog AN0-AN4 pins and tie it to a quiet analog ground.
Do not assume any PIC18F variant is pin-compatible with the PIC18F27J13T-I/SS: even within the J-series, peripherals can move between pins. Always re-read the pinout table when migrating from PIC18F25Jxx or PIC18F26Jxx. A second common pitfall is failing to configure the configuration bits in code: leaving the oscillator in an undefined state at first power-up can trap the part in a non-clockable mode. Set CONFIG1H and CONFIG1L early in the firmware initialization sequence.
Compliance Information
RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified; for automotive designs use PIC18F27J13T-I/SS in conjunction with external protective circuitry. Halogen-free per Microchip environmental compliance declaration.
