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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.
Screen Default Ranking Price By Date
| Select products | Mfr | Description | Package | Supplier Device Package | Mounting Type | Series | Operating Temperature |
|---|---|---|---|---|---|---|---|
 MCP795W22T-I/ST $1.48 | Microchip Technology | IC RTC CLK/CALENDAR SPI 14TSSOP | Tape & Reel (TR) | 14-TSSOP | Surface Mount | - | -40°C ~ 85°C |
| Nisshinbo Micro Devices Inc. | IC RTC CLK/CALENDAR SER 8DIP | Tube | 8-DIP | Through Hole | - | -30°C ~ 80°C | |
| Nisshinbo Micro Devices Inc. | IC RTC CLK/CALENDAR SER 8EMP | Tube | 8-EMP | Surface Mount | - | -30°C ~ 80°C | |
 PCA21125T/Q900/1,1 $1.87 | NXP USA Inc. | IC RTC CLK/CALENDAR SPI 14TSSOP | Tape & Reel (TR),Cut Tape (CT) | 14-TSSOP | Surface Mount | - | -40°C ~ 125°C |
| NXP USA Inc. | IC RTC CLK/CALENDAR SPI 14TSSOP | Tube | 14-TSSOP | Surface Mount | - | -40°C ~ 125°C | |
| NXP USA Inc. | IC RTC CLK/CALENDAR SPI 14TSSOP | Tape & Reel (TR) | 14-TSSOP | Surface Mount | - | -40°C ~ 125°C | |
 PCA2129T/Q900/2,51 $4.88 | NXP USA Inc. | IC RTC CLOCK/CALENDAR I2C 16SO | Tape & Reel (TR),Cut Tape (CT) | 16-SO | Surface Mount | - | -40°C ~ 85°C |
 PCA2131TF/Q900Y $3.69 | NXP USA Inc. | IC RTC W/XTAL AUTO HLSON16 | Tape & Reel (TR),Cut Tape (CT) | 16-HLSON (4.5x3.5) | Surface Mount, Wettable Flank | - | - |
