DS1372U+T&R PT7C4311AWE BQ4285S-SB2TR RV-3029-C2-32.768KHZ-OPTION-B-TB-QA RX-8035SA:B0 PT7C43390LEX BQ4802LYDWG4 RV-2123-C2-32.768KHZ-10PPM-TA-QC RX6110SA:B3 PURE SN R2051L01-E2 BQ4802YPWR DS1672-33+ ISL12008IB8Z-T R2051T01-E2-F BQ4802YPWRG4 RV-3049-C3-32.768KHZ-OPTION-A-TB-QA 1338-31DVGI8 R2061L03-E2 BQ4845S-A4NTR RV-3029-C3-32.768KHZ-OPTION-A-TB-QA