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 |
|---|---|---|---|---|---|
DS1685E-5+
|
Maxim Integrated | IC RTC CLK/CALENDAR PAR 24-TSSOP | 71 | $6.16 | |
DS1338C-3#
|
Maxim Integrated | IC RTC CLK/CALENDAR I2C 16-SOIC | 61 | $6.09 | |
DS1344E-33+
|
Maxim Integrated | IC RTC CLK/CALENDAR SPI 20-TSSOP | 90 | $4.83 | |
BQ32000D
|
Texas Instruments | IC RTC CLK/CALENDAR I2C 8-SOIC | 450 | $1.71 | |
PT7C433833UE
|
Diodes Incorporated | IC RTC CLK/CALENDAR I2C MSOP | 228 | $1.60 | |
MCP795W20-I/SL
|
Microchip Technology | IC RTC CLK/CALENDAR SPI 14-SOIC | 51 | $1.65 | |
MCP79411-I/ST
|
Microchip Technology | IC RTC CLK/CALENDAR I2C 8-TSSOP | 329 | $1.05 | |
MCP79512-I/MS
|
Microchip Technology | IC RTC CLK/CALENDAR SPI 10-MSOP | 255 | $1.24 | |
MCP79412-I/MS
|
Microchip Technology | IC RTC CLK/CALENDAR I2C 8-MSOP | 395 | $1.05 | |
|
MCP79401-I/MS
|
Microchip Technology | IC RTC CLK/CALENDAR I2C 8-MSOP | 237 | $0.97 |