IN80C49N

IN80C39N/IN80C49N CMOS SINGLE-CHIP 8-BIT MICROCONTROLLER The 80C39/80C49 is a high-performance microcontroller fabricated with high-density CMOS technology. The 80C49 contains a 2k x 8 ROM , a 128 x 8 RAM , 27 I/O lines, 8-bit counter/timers, a two-source, one level interrupt structure, and on-chip oscillator and clock circuits. The device has two modes of power reduction  idle mode and power-down mode. The idle mode freezes the CPU while allowing the RAM, timer, and interrupt system to continue functioning. The power-down mode saves the RAM contents but freezes the oscillator, causing all other chip functions to be inoperative. FEATURES 8039/8049 compatible  2k x 8 ROM (80C49)  ROMless (80C39)  128 x 8 RAM  8-bit counter/timers Memory addressing capability  4k ROM and 4k RAM Power control modes:  Idle mode  Power-down mode CMOS and TTL compatible Speed range at VCC=5V  8 MHz Fully static design Single step input operation from DC to 8MHz (MCS-48 family) PIN CONFIGURATIONS TO XTAL 1 XTAL 2 RESET SS IN T EA RD PSEN WR ALE DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 V SS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 P L A S T IC DUAL I N -L I N E PACKAGE 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 V CC T1 P 27 P 26 P 25 P 24 P 17 P 16 P 15 P 14 P 13 P 12 P 11 P 10 V DD PROG P 23 P 22 P 21 P 20 www.DataSheet4U.com 1 IN80C39N/IN80C49N CMOS single-chip 8-bit microcontroller 80C39/80C49 DC ELECTRICAL CHARACTERISTICS FOR INTEGRAL DEVICES T=-10 oC to...