Real Time Clocks
Real Time Clocks (RTCs) provide time and/or date information in almost any electronic device which needs to keep accurate time. The clock types are binary counter, clock/calendar/supervisor, elapsed time counter, phantom time chip, portable system controller, temperature recorder, time event recorder, and timer clock peripheral. They contain memory sizes ranging from 2 B to 2 MB and have interface options of I2C, Parallel, Serial, SPI, 1-Wire, 2-Wire, 3-Wire, and 4-Wire.
| Part Number | Manufacturer | Description | Quantity | Price | Option |
|---|---|---|---|---|---|
DS1556W-120IND+
|
Maxim Integrated | IC RTC CLK/CALENDAR PAR 32-EDIP | 70 | $35.19 | |
DS1744P-70IND+
|
Maxim Integrated | IC RTC CLK/CALENDAR PAR 34-PCM | 40 | $28.04 | |
MAX31341BEWC+
|
Maxim Integrated | IC RTC I2C 180NA 12WLP | 425 | $1.75 | |
CBC34803-M5C-TR1
|
Cymbet Corporation | IC RTC CLK/CALENDAR I2C 16-QFN | 1000 | $1.38 | |
MCP7940N-E/MS
|
Microchip Technology | IC RTC CLK/CALENDAR I2C 8-MSOP | 26 | $0.87 | |
|
DS1557P-70+
|
Maxim Integrated | IC RTC CLK/CALENDAR PAR 34-PCM | 80 | $39.86 | |
|
DS1248WP-120IND+
|
Maxim Integrated | IC RTC PHANTOM PAR 34-PCM | 80 | $47.31 | |
|
DS1248W-120+
|
Maxim Integrated | IC RTC PHANTOM PAR 32-DIP | 21 | $37.17 | |
|
DS1556WP-120+
|
Maxim Integrated | IC RTC CLK/CALENDAR PAR 34-PCM | 33 | $33.66 | |
|
DS1244WP-120+
|
Maxim Integrated | IC RTC PHANTOM PAR 34-PCM | 80 | $28.31 |