DESCRIPTION

The 6526 Complex Interface Adapter (CIA) is a 65XX bus compatible peripheral interface device with extremely flexible timing and I/O capabilities.

FEATURES

• 16 individually programmable I/O lines
• 8 or 16-Bit handshaking on read or write
• 2 independent, linkable 16-Bit interval timers
• 24-hour (AM/PM) time of day clock with programmable alarm
• 8-Bit shift register for serial I/O
• 2 TTL load capability
• CMOS compatible I/O lines
• 1 or 2 MHz operation available