| Part Number | UPD4990A |
| Manufacturer | NEC |
| Title | SERIAL I/O CALENDAR & CLOCK CMOS LSI |
| Description | DATA SHEET MOS INTEGRATED CIRCUIT µPD4990A SERIAL I/O CALENDAR & CLOCK CMOS LSI The µPD4990A is a CMOS LSI developed to input/output calendar &... |
| Features |
• • • • • Built-in counters for time (hour, minute, and second) and date (year, month, day, and week) Leap years are adjusted automatically. Data is represented in BCD notation (except months in hexadecimal notation) and input/output serially. Comm... |
| Datasheet |
 UPD4990A Datasheet
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