The MCP79522 SPI RTCC is highly integrated with memory and advanced features normally found in higher priced devices. By starting with a basic real-time clock, digital trimming was added for higher accuracy, a battery switchover for backup power, a timestamp to log power failures and three types of memory, which includes SRAM, EEPROM and a unique ID in a locked section of EEPROM. This ID is preprogrammed with a 64-bit MAC Address, but it can also be ordered blank for the end user to program.
General purpose SPI RTCC with features that target low power, security & communications applications.Low Power Operation - VCC Min = 1.8V - Icc
Low Backup Power - VBAT Min = 1.3V - Ibat
Automatic Battery Switchover with Timestamp - VCC to VBAT (VCC Lost) - VBAT to VCC (VCC Restored)
Dual configurable alarms with a 0.01 sec count on one alarm - IRQ (VCC or VBAT)
Clock Out frequencies: 32.768, 8.192 & 4.096 KHz and 1 Hz
Digital Trimming Range from -255 to + 255 ppm in 1 ppm steps - Adjusts up to 22 seconds/day
EEPROM has 8 Bytes/Page with Block Sector write protection - Protect: None, 1/4, 1/2 or all of array
Factory standard MAC address programming or custom ID available
MCP79522 封装图
MCP79522 封装图
型号 | 制造商 | 描述 | 购买 |
---|---|---|---|
MCP79522-I/MS | Amphenol Aerospace | CONN HSG PLUG STRGHT 61POS PIN | 立即购买 |
MCP79522T-I/MS | Panasonic | 排阻/电阻网络 RA_0603X2 3KΩ ±5% ±200ppm/℃ | 立即购买 |
MCP79522T-I/MN | Panasonic | 排阻/电阻网络 0606 2.4KΩ ±5% ±200ppm/℃ | 立即购买 |
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