MCP79410 Real-Time Clock Chips
Microchip's I²C real-time clock / calendar with memory and battery switchover
Microchip's MCP7941X series of low-power real-time clocks (RTC) uses digital timing compensation for an accurate clock / calendar, a programmable output control for versatility, a power sense circuit that automatically switches to the backup supply, and nonvolatile memory for data storage. Using a low-cost 32.768 kHz crystal, it tracks time using several internal registers. For communication, the MCP7941X uses the I2C™ bus.
The clock / calendar automatically adjusts for months with fewer than 31 days, including corrections for leap years. The clock operates in the 24-hour or 12-hour format with an AM / PM indicator and settable alarm(s) to the second, minute, hour, day of the week, date, or month. Using the programmable CLKOUT, frequencies of 32.768 kHz, 8.192 kHz and 4.096 kHz and 1 Hz can be generated from the external crystal.
Along with the onboard serial EEPROM and battery backed SRAM memory, a 64-bit protected space is available for a unique ID or MAC address to be programmed at the factory or by the end user. The device is fully accessible through the serial interface while VCC is between 1.8 V and 5.5 V but can operate down to 1.3 V for timekeeping and SRAM retention only.
Features | ||
Timing
|
Memory
|
|
Applications | ||
|
|
Real Time Clock Chips
图片 | 制造商零件编号 | 描述 | 可供货数量 | 价格 | ||
---|---|---|---|---|---|---|
![]() | ![]() | MCP79410T-I/MNY | IC RTC CLK/CALENDAR I2C 8TDFN | 20499 - 立即发货 |
1 : ¥9.34
剪切带(CT)
3300 : ¥8.27
卷带(TR)
1 : ¥9.34
Digi-Reel® 得捷定制卷带
| 查看详情 |
![]() | ![]() | MCP79410-I/SN | IC RTC CLK/CALENDAR I2C 8SOIC | 10361 - 立即发货 |
1 : ¥8.60
管件
| 查看详情 |
![]() | ![]() | MCP79410-I/MS | IC RTC CLK/CALENDAR I2C 8MSOP | 3993 - 立即发货 |
1 : ¥8.93
管件
| 查看详情 |
![]() | ![]() | MCP79410-I/ST | IC RTC CLK/CALENDAR I2C 8TSSOP | 6937 - 立即发货 |
1 : ¥8.93
管件
| 查看详情 |
发布日期: 2013-07-02