M4T32-BR12SH6

M4T32-BR12SH6 is a real-time clock and TIMEKEEPER® SNAPHAT® battery with crystal. The SNAPHAT® top is a detachable lithium power source for ST’s serial real-time clock and non-volatile TIMEKEEPER® surface-mount SOIC package (28- and 44-pin). The SNAPHAT top contains both the battery and crystal and is designed to be “snapped on” after the SOIC is surface mounted on the PC board. Thus the two-piece solution prevents the battery and crystal from being exposed to the high temperatures of the surface-mount process. It provides battery backup power for the serial real-time clock, non-volatile TIMEKEEPER® and supervisor devices in the 28- or 44-pin SNAPHAT® SOIC package.

• 3V, 120mAh battery capacities
• Removable battery avoids heat associated with surface-mount process
• Snaps directly onto surface-mounted SNAPHAT SOIC
• Keyed insertion to ensure proper assembly
• Removable for replacement and proper disposal
• 12.5pF crystal load capacitance (CL)
• 32.768KHz nominal crystal frequency
• ±35ppm crystal accuracy at 25°C
• Li(CF) battery chemistry
• Temperature range from -40 to 85°C

Warnings

Do not wave solder SOIC to avoid damaging SNAPHAT« sockets. Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.