PIC18F46J13T-I/PT - 8-bit 48MHz 64KB Flash MCU TQFP-44 | Microchip
MPN: PIC18F46J13T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.46 | $3.46 |
| 10 | $3.11 | $31.10 |
| 100 | $2.65 | $265.00 |
| 500 | $2.3 | $1,150.00 |
| 1,000 | $1.99 | $1,990.00 |
PIC18F46J13T-I/PT Overview
A PIC18 microcontroller is an 8-bit Harvard-architecture MCU from Microchip's PIC18 family, which sits in the broader hierarchy of microcontroller -> embedded controller -> semiconductor IC. The PIC18J-series adds 3.3V operation, higher memory density, and richer peripherals versus older PIC18F baselines, while preserving code compatibility with PIC18 instruction set. nanoWatt XLP technology extends deep-sleep current down to the nanoampere range, making the J-series suited for battery-powered or energy-harvesting designs.
Key features include 64KB self-programmable Flash, 4KB SRAM, 12-bit A/D converter with auto-acquisition, multiple serial peripherals (UART, SPI, I2C), and four timer modules. Deep-sleep mode, Sleep mode, and Idle mode combine with nanoWatt XLP to deliver battery lifetimes measured in years for typical sensor applications.
The device uses a modified Harvard architecture with a 16-bit instruction word and 8-bit data path, executed by an 8-stage pipeline. The 48MHz internal oscillator provides 12 MIPS instruction throughput, sufficient for sensor fusion, simple HMI control, and peripheral orchestration tasks.
Typical applications include consumer white goods, smart thermostats, low-power sensor nodes, USB peripherals, and industrial control boards where the 64KB/4KB memory profile and rich peripherals match the application's needs without paying for an excess MCU.
When designing with this MCU, ensure decoupling capacitors are placed close to VDD/VSS pins and that unused I/O are configured as outputs to minimize current draw. Brown-out reset configuration should match the operating voltage to prevent code corruption during supply droops.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC18F46J13T-I/PT — 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 PIC18F46J13T-I/PT (same form factor and footprint) — differing in Package, Operating Temperature, Timers, A/D Converter, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC18F46J13-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F46J13-I/ML
✅ Drop-In✓ In Stock
$4.38 / Unit
View Datasheet →PIC18F46J13T-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F45J11T-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F46J50-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
PIC18F46K22-I/PT
✅ Drop-In✓ In Stock
$2.32 / Unit
View Datasheet →PIC18F45K22-I/PT
✅ Drop-In✓ In Stock
$2.65 / Unit
View Datasheet →PIC18F46J13T-I/PT Maximum Ratings & Electrical Characteristics
| Core | PIC18 8-bit RISC |
| Instruction Set | PIC18 (16-bit instruction word, 8-bit data path) |
| Program Memory | 64 KB Flash |
| Data Memory (SRAM) | 4 KB |
| Operating Frequency | Up to 48 MHz (12 MIPS) |
| Supply Voltage (VDD) | 2.0 V to 3.6 V |
| I/O Pins | 36 |
| A/D Converter | 12-bit, up to 13 channels |
| Timers | 4 (Timer0/1/2/3) |
| Communication | UART, SPI, I2C |
| Low-Power Technology | nanoWatt XLP with Deep-sleep mode |
| Package | 44-pin TQFP (10x10 mm) |
| Operating Temperature | -40 C to +85 C (Industrial) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC18F46J13T-I/PT Pin Configuration
| Pin 1 | RB0/AN12/INT0 — Port B bit 0 / analog input 12 / external interrupt 0 |
| Pin 2 | RB1/AN10/INT1 — Port B bit 1 / analog input 10 / external interrupt 1 |
| Pin 3 | RB2/AN8 — Port B bit 2 / analog input 8 |
| Pin 4 | RB3/AN9 — Port B bit 3 / analog input 9 |
| Pin 5 | RB4/AN11 — Port B bit 4 / analog input 11 |
| Pin 6 | RB5/AN13 — Port B bit 5 / analog input 13 |
| Pin 7 | RB6/PGC — Port B bit 6 / ICSP clock |
| Pin 8 | RB7/PGD — Port B bit 7 / ICSP data |
| Pin 9 | VSS — Ground reference |
| Pin 10 | VDD — Positive supply voltage (2.0-3.6V) |
| Pin 11 | RC0/T1OSO — Port C bit 0 / Timer1 oscillator output |
| Pin 12 | RC1/T1OSI — Port C bit 1 / Timer1 oscillator input |
| Pin 13 | RC2/CCP1 — Port C bit 2 / Capture/Compare/PWM 1 |
| Pin 14 | RC3/SCL1 — Port C bit 3 / I2C1 clock |
| Pin 15 | RC4/SDA1 — Port C bit 4 / I2C1 data |
| Pin 16 | RC5 — Port C bit 5 |
| Pin 17 | RC6 — Port C bit 6 |
| Pin 18 | RC7 — Port C bit 7 |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage (2.0-3.6V) |
| Pin 21 | RA0/AN0 — Port A bit 0 / analog input 0 |
| Pin 22 | RA1/AN1 — Port A bit 1 / analog input 1 |
| Pin 23 | RA2/AN2/VREF- — Port A bit 2 / analog input 2 / ADC VREF- |
| Pin 24 | RA3/AN3/VREF+ — Port A bit 3 / analog input 3 / ADC VREF+ |
| Pin 25 | RA4/AN4 — Port A bit 4 / analog input 4 |
| Pin 26 | RA5/AN5 — Port A bit 5 / analog input 5 |
| Pin 27 | RA6/OSC2 — Port A bit 6 / oscillator output |
| Pin 28 | RA7/OSC1 — Port A bit 7 / oscillator input |
| Pin 29 | VSS — Ground reference |
| Pin 30 | VDD — Positive supply voltage (2.0-3.6V) |
| Pin 31 | RE0/AN6 — Port E bit 0 / analog input 6 |
| Pin 32 | RE1/AN7 — Port E bit 1 / analog input 7 |
| Pin 33 | RE2 — Port E bit 2 |
| Pin 34 | RE3 — Port E bit 3 |
| Pin 35 | MCLR — Master clear reset (active-low) |
| Pin 36 | RD0 — Port D bit 0 |
| Pin 37 | RD1 — Port D bit 1 |
| Pin 38 | RD2 — Port D bit 2 |
| Pin 39 | RD3 — Port D bit 3 |
| Pin 40 | RD4 — Port D bit 4 |
| Pin 41 | RD5 — Port D bit 5 |
| Pin 42 | RD6 — Port D bit 6 |
| Pin 43 | RD7 — Port D bit 7 |
| Pin 44 | VSS — Ground reference |
Typical Applications
PIC18F46J13T-I/PT is suitable for 6 applications: Battery-Powered Sensor Node, Smart Thermostat Controller, USB Human-Interface Device (HID), Industrial Control Board, Consumer White Goods, Low-Cost Data Logger.
Battery-Powered Sensor Node
The PIC18F46J13T-I/PT is well suited for battery-powered wireless or wired sensor nodes thanks to its nanoWatt XLP technology, with Deep-sleep current in the nanoampere range per the Microchip datasheet. The 12-bit ADC with 13 channels handles multiple analog sensors (temperature, humidity, light) while 64KB Flash accommodates sensor-fusion algorithms and 4KB SRAM buffers raw readings. Operating from 2.0V to 3.6V, the device runs directly from a single 3.3V regulator or 2xAA cell stack. Designers duty-cycle the MCU: wake on timer or external interrupt, sample sensors, transmit, then return to Deep-sleep. This pattern extends coin-cell battery life into multi-year ranges, ideal for HVAC, environmental, and structural-health monitoring deployments.
Recommended
Smart Thermostat Controller
The PIC18F46J13T-I/PT serves as the main controller in smart thermostat designs, where its 36 I/O pins drive LCD/keypad interfaces, triac outputs for HVAC load switching, and I2C sensor buses for ambient temperature and humidity measurement. The 12-bit ADC provides precise thermistor or RTD signal conditioning with 0.024% resolution at 3.3V full scale. 64KB Flash holds scheduling firmware, PID loops, and Wi-Fi/BLE co-processor command stacks. Per the manufacturer datasheet, Sleep and Idle modes reduce idle power when the HVAC system is steady-state, while the 48MHz core ensures responsive UI updates. Industrial -40C to +85C rating supports uninsulated wall-mount deployments.
Recommended
USB Human-Interface Device (HID)
The PIC18F46J13T-I/PT can drive USB HID peripherals (keyboards, mice, custom controls) when paired with an external USB transceiver, or serve as the host controller for low-speed USB devices in industrial settings. The 48MHz / 12 MIPS throughput sustains USB polling and HID report generation within timing margins. 4KB SRAM buffers HID reports and command sequences while 64KB Flash stores descriptor tables and application logic. Per the Microchip datasheet, the integrated UART/SPI/I2C peripherals enable bridge functions between USB and legacy serial interfaces, useful for firmware-upgrade dongles or industrial configuration tools operating from a 3.3V rail.
Recommended
Industrial Control Board
The PIC18F46J13T-I/PT fits industrial control boards where moderate memory, rich peripherals, and 3.3V operation simplify design. 36 I/O drive relays, optocouplers, and discrete status LEDs across PLC-style I/O racks. The 12-bit ADC monitors 4-20mA current loops through burden resistors, while UART/SPI peripherals connect to HMI panels or SCADA gateways. Per the manufacturer datasheet, the -40C to +85C industrial temperature range tolerates unheated cabinet installations. nanoWatt XLP Deep-sleep mode enables sleep current below 100nA in standby, valuable for solar-powered remote telemetry units in SCADA networks.
Recommended
Consumer White Goods
The PIC18F46J13T-I/PT powers consumer white goods such as washing machines, dishwashers, and coffee makers, where 64KB Flash holds motor-control algorithms and HMI state machines. The 12-bit ADC reads water level, temperature, and motor current sensing; PWM channels drive TRIACs and variable-frequency motor stages. Per the manufacturer datasheet, deep-sleep current allows standby power to stay below 0.5W, meeting global energy-efficiency regulations. Operating at 3.3V simplifies integration with capacitive-touch controllers and OLED displays common in modern appliance UI.
Recommended
Low-Cost Data Logger
The PIC18F46J13T-I/PT acts as the core of low-cost SD-card or serial-flash data loggers for field-deployed monitoring. With 64KB Flash program memory and 4KB SRAM, the device runs FAT32 stack and timestamp routines while the 12-bit ADC samples sensors at up to 100 ksps. nanoWatt XLP Sleep mode between samples limits battery drain to under 1uA average for multi-month deployments. Per the Microchip datasheet, SPI peripheral communicates directly with SD card transceivers, eliminating an external memory controller. The industrial temperature grade handles outdoor or unconditioned enclosure deployments.
Recommended
Recommended Products Summary
Engineering reference data for PIC18F46J13T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC18F46J13-I/PT | PIC18F46J13-I/ML | PIC18F46J13T-E/PT | PIC18F45J11T-I/PT | PIC18F46J50-I/PT |
|---|---|---|---|---|---|---|
| Package | TQFP-44 (10x10 mm) | TQFP-44 (10x10 mm) - same | TQFP-44 family - same | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same | TQFP-44 (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | PIC18 8-bit | PIC18 8-bit | PIC18 8-bit | PIC18 8-bit | PIC18 8-bit | PIC18 8-bit K-series |
| Flash Memory | 64 KB | 64 KB | 64 KB | 32 KB | 64 KB | 64 KB |
| SRAM | 4 KB | 4 KB | 4 KB | 2 KB | 3.8 KB | 3.8 KB |
| Maximum Frequency | 48 MHz / 12 MIPS | 48 MHz / 12 MIPS | 48 MHz / 12 MIPS | 48 MHz / 12 MIPS | 48 MHz / 12 MIPS | 64 MHz / 16 MIPS |
| ADC | 12-bit, 13 channels | 12-bit, 13 channels | 12-bit, 13 channels | 10-bit, 13 channels | 10-bit, 13 channels | 12-bit, 17 channels |
| USB | No (external transceiver required) | No | No | No | Yes (USB 2.0 Full-Speed integrated) | No |
| Operating Voltage | 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 | 2.0 V to 3.6 V | 1.8 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +125 C (Extended) | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C |
Key Differentiators
- Same die, tape-and-reel packaging for automated SMT assembly (vs PIC18F46J13-I/PT)
- Integrated USB 2.0 Full-Speed peripheral for native USB applications (vs PIC18F46J50-I/PT)
- 5V-tolerant K-series operation for noisy industrial buses (vs PIC18F46K22-I/PT)
Design Notes
Place 100nF decoupling capacitors on every VDD/VSS pair of the PIC18F46J13T-I/PT (pins 10/9, 20/19, 30/29, and pin 44 VSS). Add a 10uF bulk capacitor near the supply pins. For nanoWatt XLP Deep-sleep operation, ensure unused pins are configured as outputs (driven low) and peripherals are disabled to minimize current draw.
Route MCLR (pin 35) through a 10k pull-up resistor and a 100nF capacitor to ground for proper in-circuit serial programming (ICSP). Keep the ICSP clock (RB6/PGC, pin 7) and data (RB7/PGD, pin 8) traces short and away from switching nodes to avoid programming failures. The TQFP-44 (10x10 mm) package has a 0.8mm pitch requiring careful trace escape routing on inner layers.
Do not exceed 3.6V on any pin of the PIC18F46J13T-I/PT; this PIC18J-series part is NOT 5V tolerant unlike the K-series. Use level shifters when interfacing to 5V logic. Configure BOR (Brown-Out Reset) voltage threshold to match VDD ramp profile to prevent Flash corruption during power-up or power-down. The 12-bit ADC reference voltage (RA3/VREF+, RA2/VREF-) must be stable; add 100nF bypass on VREF+ if used externally.
Compliance Information
RoHS compliant per Microchip product page and distributor listings. Not AEC-Q100 qualified - choose PIC18F46J13T-E/PT (extended temperature grade) for harsher environments. Reach and conflict minerals compliance confirmed via Microchip product documentation.