FDC37C93X Description
..................................................................................................................3 .......................................................................................................................4 DESCRIPTION OF PIN FUNCTIONS .................................................................................................5 FUNCTIONAL DESCRIPTION...
FDC37C93X Key Features
- 5 Volt Operation ISA Plug-and-Play Standard (Version 1.0a) patible Register Set 8042 Keyboard Controller
- 2K Program ROM
- 256 Bytes Data RAM
- Asynchronous Access to Two Data Registers and One Status Register
- Supports Interrupt and Polling Access
- 8 Bit Timer/Counter Real Time Clock
- MC146818 and DS1287 patible
- 256 Bytes of Battery Backed CMOS in Two Banks of 128 Bytes
- 128 Bytes of CMOS RAM Lockable in 4x32 Byte Blocks
- 12 and 24 Hour Time Format