The CMOS bq3285 is a low-power microprocessor peripheral providing a time-of-day clock and 100-year calendar with alarm features and battery operation. Other features include three maskable interrupt sources, square wave output, and 114 bytes of general nonvolatile storage.
The bq3285 write-protects the clock, calendar, and storage registers during power failure. A backup battery then maintains data and operates the clock and calendar.
The bq3285 is a fully compatible real-time clock for IBM AT compatible computers and other applications. The only external components are a 32.768kHz crystal and a backup battery.
|Supply Voltage (V)|
|Memory Density (Kb)|
|Operating Temperature Range (C)|
|Approx. Price (US$)|
|0 to 70|
|2.43 | 1ku|
|RAM Clear Function|
|Sample & Buy|