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 |
|---|---|---|---|---|---|
DS3231M+
|
Maxim Integrated | IC RTC CLK/CALENDAR I2C 16-SOIC | 244 | $7.87 | |
RTC-72421B: ROHS
|
Epson | IC RTC CLK/CALENDAR PAR 18-DIP | 453 | $6.85 | |
DS1306N+
|
Maxim Integrated | IC RTC CLK/CALENDAR SPI 16-DIP | 877 | $6.69 | |
DS1678S+
|
Maxim Integrated | IC RTC EVENT REC I2C 8-SOIC | 352 | $6.63 | |
BQ3285ES
|
Texas Instruments | IC RTC CLK/CALENDAR PAR 24-SOIC | 385 | $6.60 | |
DS1501WZN+T&R
|
Maxim Integrated | IC RTC CLK/CALENDAR PAR 28-SOIC | 1920 | $0.00 | |
DS1685S-5+
|
Maxim Integrated | IC RTC CLK/CALENDAR PAR 24-SOIC | 407 | $6.14 | |
|
DS1340C-33#
|
Maxim Integrated | IC RTC CLK/CALENDAR I2C 16-SOIC | 334 | $6.09 | |
|
DS1374C-33#
|
Maxim Integrated | IC RTC BINARY CNT I2C 16-SOIC | 918 | $5.98 | |
|
DS1337C#
|
Maxim Integrated | IC RTC CLK/CALENDAR I2C 16-SOIC | 456 | $5.73 |