RTC8088 controller card is an open source real time clock (RTC) card for IBM PC/XT compatible computers, that typically lack a built-in real time clock.

RTC8088 project was originally designed by Aitor Gómez García for use in Micro 8088 systems based on the previous work by Scott Baker, which in its turn partially based on my Xi 8088 project. I updated the RTC8088 V2 project, and added I/O port configuration switches and DOS device driver.

Features

• I/O port configuration switches allow setting I/O port according to your system configuration.
• Supported by the 8088 BIOS on Micro 8088 and NuXT v1.x.
• DOS clock driver is provided for other systems.
• Also supported by GLaTICK BIOS extension.
• High quality ISA card with hard gold plated ISA card edge connector.
• Based on Analog Devices/Maxim/Dallas DS12885 RTC IC. Original new DS12885+ are used in this product.

SW1 Switches - RTC I/O address select

What is included

The RTC8088 is offered in three options:

1. Assembled and tested RTC8088 card.
2. Complete RTC8088 kit. You'll need to assemble the board.
3. RTC8088 PCB and pre-programmed ATF16V8B SPLD IC. You'll need to get all other components and assemble the board.

Please select the desired option in the Kit Options drop-down menu

Notes

• The card requires CR2032 coin cell lithium metal battery. Due to shipping restrictions, the battery is not included in any offered options. You'll need to purchase the battery separately
• This product is only offered in the USA and Canada. Please order similar product from Aitor Gómez García if your shipping address is outside of the USA or Canada.