MC6805K3 Datasheet | Motorola Semiconductor

EATURES - 32 Bidirectional TTL I/O Lines Eight CMOS I/O patible Eight LED li O patible Eight Open Drain (Software Control) - User ROM: MC6805K2 - 2K Bytes MC6805K3 - 3.6K Bytes - 96 Bytes of User RAM, 16 Bytes on Standby via VSTBY Pin - 128 Bytes of User EEPROM with Write/Erase Latches - Self-Check Mode - Serial Peripheral Interface - Zero-Crossing Detect/ Interrupt - Two Cascadable 8-Bit Timers with 7-Bit Software Programmable Prescaler, Data Modulus Latch, and Capture Latch - Auxiliary Counter with "Wat Chdog" Reset Feature - 5-Volt Single Supply - Two External Interrupts SOFTWARE Features - 10 Powerful Addressing Modes - Byte Effi Cient Instruction Set with True Bit Manipulation, Bit Test, and Branch Instructions - Single Instruction Memory Examine/Change - Powerful Indexed Addressing for Tables - Full Set of Conditional Branches - Memory Usable as Register / Flags - User Callable Self-Check Subroutines - plete Development System Support on EXORciser, EXORset, and HDS-200 USER SELECTABLE OPTIONS - Eight Bidirectional I/O Lrnes With TTL or TTL/CMOS Interface Option - Crystal or Low-Cost Resistor OSCillator Option - Low Voltage Inhibit Option - Vectored Interrupts: Tlmer/SPI, Software, and...