3.3V, 32 MbIT (1024 KBIT x 32) TIMEKEEPER® SRAM Multi-channel clock distribution circuIT Serial real-time clock wITh 44 bytes NVRAM and reset Serial I2C bus RTC wITh battery swITchover 3.3V, 32 MbIT (1024 KBIT x 32) TIMEKEEPER® SRAM 模拟IC Serial SPI bus RTC wITh battery swITchover 模拟IC