64 x 8, Serial, I2C Real-time clock, 4.5V to 5.5V VCC, 0°C to +70°C, DIP-8 RTC, Trickle-Charge Timekeeping Chip DIP*W7.62mm*

64 x 8, Serial, I2C Real-time clock, 4.5V to 5.5V VCC, 0°C to +70°C, SOIC-8 RTC, I2C Timekeeping Chip SOIC*3.9x4.9mm?P1.27mm*

Real-time Clocks (RTC) R2033T-E2-F TSSOP-10_L2.9-W2.8-P0.50-LS4.0-BL LCSC Part Number: C2442261 JLCPCB Part Class: undefined Manufactured by RICOH(理光)

Real-time Clocks (RTC) R2223L-E2 QFN-12_L1.8-W1.8-P0.40-BL-EP0.8 LCSC Part Number: C2441397 JLCPCB Part Class: undefined Manufactured by RICOH(理光)