Limited Stock

ZILOG Z80A-CTC 4 MHz COUNTER TIMER CONTROLLER DIP-28 VINTAGE ARCADE IC

Arcade Game Electronics & Parts • SKU RFB00593

$14.99

Original vintage Zilog Z80A-CTC Counter/Timer Circuit in a 28-pin plastic DIP package. This classic Z80-family peripheral provides four independently programmable counter/timer channels for timing, event counting, interrupt generation and clock-rate generation in Z80-based electronic systems.

LIFECYCLE STATUS: OBSOLETE.

The Z80A version supports the 4 MHz Z80A system family and is associated with the later Zilog Z8430A designation. It interfaces directly with Z80-family processors and other Z80 peripheral devices.

The package is marked ZILOG, Z80A-CTC and 7901. The 7901 marking is consistent with an early-1979 production date code, making this an original early Z80-era component.

This listing and price are for one IC.

HISTORICAL BACKGROUND:

Zilog developed a complete peripheral family around its influential Z80 microprocessor architecture. The Z80 CTC was the dedicated Counter/Timer Circuit and provided four programmable channels that could perform event counting, interval timing, interrupt generation and clock-rate generation without requiring extensive external logic.

Z80-family processors and peripherals became widely used during the late 1970s and 1980s in arcade electronics, microcomputers, industrial controllers, communications equipment and embedded control systems. Original early-production Zilog components remain useful for period-correct repair and restoration of surviving Z80-based equipment.