Product Overview
The PIC18F44J10-I is a 44-pin, 8-bit high-performance RISC microcontroller from Microchip Technology featuring the PIC18 architecture in a cost-optimized J-series package. With 10 MIPS performance and a 31-level deep hardware stack, this general-purpose MCU offers 16KB (8K x 16) of Flash program memory, 1024 bytes of RAM, and no data EEPROM (J-series characteristic). Operating at up to 40 MHz across a voltage range of 2.0V to 3.6V with 5V-tolerant digital inputs, it integrates a 13-channel 10-bit ADC with self-calibration, two analog comparators, two CCP modules (one standard + one enhanced), dual MSSP (SPI/I2C), one EUSART with LIN support, a Parallel Slave Port (PSP), and an on-chip 2.5V regulator. Designed as a cost-effective high-performance solution with 5V tolerant I/O, the PIC18F44J10 is ideal for general-purpose embedded control, interface bridging, data acquisition, consumer electronics, and industrial applications requiring 40 MHz performance in a 44-pin package.
Key Specifications
| Core Architecture | 8-bit PIC18 RISC Architecture |
| Program Memory | 16KB Flash (8K x 16 words) |
| RAM | 1024 bytes (1 KB) |
| Data EEPROM | None (J-series characteristic) |
| Maximum Speed | 40 MHz (10 MIPS) |
| Operating Voltage | 2.0V to 3.6V, 5V tolerant digital inputs |
| I/O Pins | 35 |
| ADC | 10-bit, 13 channels with self-calibration |
| Comparators | 2 analog comparators with input multiplexing |
| Timers | Timer0 8/16-bit, Timer1 16-bit, Timer2/3/4 8-bit |
| PWM | 2 CCP (1 standard + 1 enhanced) = 2 PWM modules |
| Communication | EUSART/LIN, 2 x SPI, 2 x I2C (dual MSSP) |
| Parallel Port | PSP (Parallel Slave Port), 8-bit |
| Voltage Regulator | On-chip 2.5V regulator |
| Oscillator | External (crystal, RC, EC) + internal 31 kHz |
| PLL | 4x PLL for up to 40 MHz |
| Stack Levels | 31-level hardware stack |
| Hardware Multiplier | 8 x 8 single-cycle hardware multiplier |
| Debug | Enhanced ICD with 3 hardware breakpoints |
| 5V Tolerant I/O | Yes (digital inputs only) |
| Operating Temperature | -40°C to +85°C (Industrial) |
| Package | 44-pin TQFP / QFN |
Features
- High-performance PIC18 RISC CPU with 10 MIPS at 40 MHz
- 16-bit wide instructions, 8-bit wide data path
- 31-level deep software accessible hardware stack
- 8 x 8 single-cycle hardware multiplier
- Priority levels for interrupts
- C compiler optimized architecture
- 5V tolerant digital inputs (mixed voltage system interfacing)
- On-chip 2.5V regulator for core supply
- 13-channel 10-bit ADC with auto-acquisition and self-calibration
- ADC conversion available during Sleep mode
- Dual analog comparators with input multiplexing
- One Enhanced CCP (ECCP) with PWM steering
- One standard CCP (Capture/Compare/PWM) module
- Two Master Synchronous Serial Port (MSSP) modules
- Enhanced USART (EUSART) with auto-baud detect and LIN support
- Parallel Slave Port (PSP) for 8-bit parallel interface
- 4x Phase Lock Loop (PLL) for 40 MHz operation
- Two-Speed Oscillator Start-up and Fail-Safe Clock Monitor
- Power-managed modes: Run, Idle, Sleep
- Extended Watchdog Timer (WDT) with programmable period
- Brown-out Reset (BOR) and Power-on Reset (POR)
- Self-programmable under software control
- In-Circuit Serial Programming (ICSP) via two pins
- Enhanced In-Circuit Debug (ICD) with 3 hardware breakpoints
- Programmable code protection
- 35 I/O pins with high sink/source current
- Three external interrupt pins
- Interrupt-on-change (KBI) on selected pins
- Flash endurance: 1,000 cycles, 20-year retention
Applications
- General-purpose embedded control systems
- Data acquisition and sensor interfaces
- Consumer electronics and home appliances
- Interface bridging and protocol conversion
- Industrial control and monitoring
- Parallel-to-serial interface conversion (PSP)
- Low-cost high-performance 8-bit applications