DS1982 Overview
19-4891; Rev 8/09.
DS1982 Key Features
- 1024 bits Electrically Programmable ReadOnly Memory (EPROM) municates with the economy of one signal plus ground
- EPROM partitioned into four 256-bit pages for randomly accessing packetized data
- Each memory page can be permanently writeprotected to prevent tampering
- Device is an “add only” memory where additional data can be programmed into EPROM without disturbing existing data
- Architecture allows software to patch data by superseding an old page in favor of a newly programmed page
- Reduces control, address, data, power, and programming signals to a single data pin
- 8-bit family code specifies DS1982 munications requirements to reader
- Reads over a wide voltage range of 2.8V to 6.0V from -40°C to +85°C; programs at 11.5V to 12.0V from -40°C to +50°C
