Part Number	M4T28-BR12SH
Description	Real-time clock and TIMEKEEPER SNAPHAT battery
Info	M4T28-BR12SH M4T32-BR12SH Real-time clock and TIME.
Manufacture	STMicroelectronics
for PC	Download M4T28-BR12SH Datasheet

Part Number	M4T32-BR12SH
Description	Real-time clock and TIMEKEEPER SNAPHAT battery
Info	M4T28-BR12SH M4T32-BR12SH Real-time clock and TIME.
Manufacture	ST Microelectronics
for PC	Download M4T32-BR12SH Datasheet

Part Number	M4TH
Description	Load Insensitive Mixer
Info	%& & '() * & '() + & '() %& ,*+ - . / 0 1&'+ 12%3 .
Manufacture	Tyco Electronics
for PC	Download M4TH Datasheet

Part Number	M4TK
Description	32-bit Microcontroller
Info	M4TK ARM® Cortex® -M 32-bit Microcontroller NuMi.
Manufacture	nuvoton
for PC	Download M4TK Datasheet