DS1650Y-100 DIP RTC with NVRAM 100 Sec Backup Technology *ib

Dallas DS1220AB-100IND DIP High-Precision 64Kx8 NVRAM, 100ns, Backup *vb

Dallas DS1230AB-100IND DIP High-Precision 64Kx8 NVRAM, 100ns, Backup #ty

Dallas DS1235Y-70 DIP-28 RTC with NVRAM 70 Sec Backup Low Power *su

DS1650Y-100 DIP RTC with NVRAM 100 Sec Backup Technology *lg

Dallas DS1235Y-70 DIP-28 RTC with NVRAM 70 Sec Backup Low Power *rr

DS1742-120 DIP32 Timekeeping RAM 120ns 2K x 8 Backup RTC *af

TI BQ4011MA-85 DIP High-Precision 512Kx8 NVRAM, 85ns, Backup *yu