STMicroelectronics M4T28-BR12SH1 Timekeeper Battery
--- IC CLK BATT/XTAL 32.768KHZ 48MAH ---
Replaces St Microelectronics 497 3686 5 ND 497-3686-5 49736865ND M4T32-BR12SH1 Interstate ALIT0451 GE 197230 AS-3 AS-5 SRAM Datex-Ohmeda 197230 AS-3 AS-5 SRAM