M48T58Y-70MH1E

5.0V ， 64千位（ 8 KB ×8 ） TIMEKEEPER SRAM 5.0V, 64 Kbit 8 Kb x 8 TIMEKEEPER SRAM

实时时钟 RTC IC 时钟/日历 - 并联 带 SNAPHAT 插座的 28-SOIC（0.337"，8.56mm 宽）

得捷:
IC RTC CLK/CALENDAR PAR 28SOH

艾睿:
Real Time Clock Parallel 8Kbyte Clock/Calendar/NV Timekeeping RAM/Battery Backup 28-Pin SOH Tube

Chip1Stop:
Real Time Clock Parallel 8Kbyte Clock/Calendar/NV Timekeeping RAM/Battery Backup 28-Pin SOH Tube

Win Source:
Real Time Clock RTC IC Clock/Calendar Parallel 28-SOIC 0.337", 8.56mm Width with SNAPHAT Sockets