This is the DS39760C PIC18F2450/4450 Data Sheet released by Microchip Technology Inc. The data sheet includes detailed information on 28/40/44-pin high-performance, 12 MIPS, enhanced flash, USB microcontrollers with nanoWatt technology.
The PIC18F2450 and PIC18F4450 are high‑performance 12 MIPS USB microcontrollers offered in 28‑, 40‑ and 44‑pin packages. They provide USB 2.0 compliance with Low‑Speed (1.5 Mb/s) and Full‑Speed (12 Mb/s) operation, up to 32 endpoints, and a 256‑byte dual‑access RAM dedicated to USB functions. The devices include a wide range of peripherals such as multiple timers, a 10‑bit ADC, high‑current I/O, and an 8×8 hardware multiplier.
The datasheet covers device overview, oscillator options, power‑managed modes, memory organization, flash program memory, peripheral modules, USB features, electrical characteristics, packaging information, and migration guides. Pin diagrams for all package types and detailed specifications for voltage, current, and timing are provided.
| USB compliance | USB V2.0 |
|---|---|
| Supported USB speeds | Low Speed 1.5 Mb/s, Full Speed 12 Mb/s |
| Maximum endpoints | 32 (16 bidirectional) |
| USB RAM | 256 Byte dual‑access RAM |
| Sleep mode current | 0.1 µA typical |
| I/O high‑current sink/source | 25 mA each |
| Flash memory retention | > 40 years |
It supports Low‑Speed (1.5 Mb/s) and Full‑Speed (12 Mb/s) USB 2.0 operation.
The device can handle up to 32 endpoints, with 16 bidirectional pairs.