AT89C5131A-RDTIM [Atmel]

AT89C5130A/31A-M features a full-speed USB module compatible with USB 1.1 and 2.0 specifications. It integrates USB transceivers with 3.3V regulator, Serial Interface Engine (SIE), and FIFO buffers. Retains 80C52 features with extended Flash (16/32-Kbytes), 256 bytes RAM, 4-level interrupt system, two 16-bit timers, enhanced UART, and on-chip oscillator. Additional features include 1024-byte expanded RAM (ERAM), dual data pointer, 16-bit up/down timer (T2), Programmable Counter Array (PCA), programmable LED current sources, hardware watchdog, and power-on reset. Supports idle and power-down modes for reduced power consumption.