The MCP79401 general purpose I2CTM Compatible real-time clock/calendar (RTCC) is highly integrated with memory and advanced features normally found in higher priced devices. These features include a battery switchover circuit for backup power, a timestamp to log power failures and digital trimming for accuracy. Using a low-cost 32,768 kHz crystal or other clock source, time is tracked in either a 12-hour or 24-hour format with an AM/PM indicator and timing to the second, minute, hour, day of the week, day, month and year. As an interrupt or wakeup signal, a multifunction open drain output can be programmed as an Alarm Out or as a Clock Out that supports 4 selectable frequencies. In addition to the SRAM memory, there a unique ID that is factory programmed in a locked section of EEPROM with a MAC Address. This ID can also be unlocked and reprogrammed by the end user.
Additional Features
Real Time Clock (RTC) IC Clock/Calendar 64B IC, 2-Wire Serial 8-SOIC (0.154
Real Time Clock (RTC) IC Clock/Calendar 64B IC, 2-Wire Serial 8-TSSOP, 8-MSOP (0.118
Real Time Clock (RTC) IC Clock/Calendar 64B IC, 2-Wire Serial 8-TSSOP (0.173
Real Time Clock (RTC) IC Clock/Calendar 64B IC, 2-Wire Serial 8-WFDFN Exposed Pad
Real Time Clock (RTC) IC Clock/Calendar 64B IC, 2-Wire Serial 8-SOIC (0.154
Real Time Clock (RTC) IC Clock/Calendar 64B IC, 2-Wire Serial 8-TSSOP, 8-MSOP (0.118
Real Time Clock (RTC) IC Clock/Calendar 64B IC, 2-Wire Serial 8-TSSOP (0.173
Microchip Technology, Inc. | Nova Technology(HK) Co.,Ltd | Nova Technology(HK) Co.,Ltd | Nova Technology(HK) Co.,Ltd | |
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Product Category | IC Clocks | IC Clocks | IC Clocks | IC Clocks |
Product Number | MCP79401 | MCP79401-I/SN | MCP79401-I/MS | MCP79401T-I/MNY |
Product Name | Battery-Backed I2C Real-Time Clock/Calendar with Pre-Programmed EUI-48™ MAC ID | Clock/Timing - Real Time Clocks | Clock/Timing - Real Time Clocks | Clock/Timing - Real Time Clocks |
Device Type | Real Time Clock; Clock Generator | Real Time Clock | Real Time Clock | Real Time Clock |