AT89LP428 Datasheet - ATMEL Corporation

AT89LP428 8-bit Microcontroller

AT89LP428/828 Pin Description Table 1-1. Pin Number TQFP /MLF PLCC PDIP Symbol Type I/O O 1 5 5 P4.1 O I/O Description P4.1: User-configurable I/O Port 4 bit 1. XTAL2: Output from inverting oscillator amplifier. It may be used as a port pin if the internal RC oscillator is selected as the clock so.

AT89LP428 Features

* 8-bit Microcontroller Compatible with MCS®51 Products

* Enhanced 8051 Architecture

* Single-clock Cycle per Byte Fetch

* Up to 20 MIPS Throughput at 20 MHz Clock Frequency

* Fully Static Operation: 0 Hz to 20 MHz

* On-chip 2-cycle Hardware Multiplier

AT89LP428-ATMELCorporation.pdf