M41T81SM6E , Real Time Clock (RTC) IC Clock/Calendar I²C, 2-Wire Serial 8-SOIC (0.154", 3.90mm Width). we specialize in STMicroelectronics M41T81SM6E electronic components. M41T81SM6E can be shipped within 24 hours after order.
M41T81M6F , IC RTC CLK/CALENDAR I2C 8-SOIC. we specialize in STMicroelectronics M41T81M6F electronic components. M41T81M6F can be shipped within 24 hours after order.