MSM6542-1 series datasheets. Manufacturer: OKI.

MSM6542-1MS-K Real time clock with periodic and alarm output in 20-pin SOP package. Operational temperature range from -40°C to 85°C. Datasheet*) MSM6542-1RS Real time clock with periodic and alarm output in 18-pin DIP package. Operational temperature range from -40°C to 85°C. Datasheet*) MSM6542-2MS-K Real time clock with periodic and alarm output in 20-pin SOP package. Operational temperature range from -40°C to 85°C. Datasheet*) MSM6542-2RS Real time clock with periodic and alarm output in 18-pin DIP package. Operational temperature range from -40°C to 85°C. Datasheet*) MSM6542-3GS-VK Real time clock with periodic and alarm output in 24-pin SOP package. Operational temperature range from -40°C to 85°C. Datasheet*) MSM6542-3RS Real time clock with periodic and alarm output in 24-pin DIP package. Operational temperature range from -40°C to 85°C. Datasheet*)

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