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Real-Time Clock Modules Exhibit Small Dimensions

Wed, 12/10/2008 - 7:35am

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Epson RX-4571BDUsing a QMEMS crystal chip, Epson Toyocom’s RX-4571BD and RX-8571BD real-time clock modules come in a 3.400-mm × 1.700-mm × 1t-mm 10-pin SON package. The RX-4571BD supports a 3-wire serial interface and consumes a standby current of 0.320 µA at 3 V, while the I²C-Bus-compliant RX-8571BD has 128-bit user RAM and consumes a standby current of 0.220 µA at 3 V. The devices offer a timer function from 244.140 us to 4,095 and 65,535 minutes, respectively, 32.768-kHz CMOS output enable, automatic leap year correction, full calendar and clock functions, and alarms settable for dates, days of the week, hours and minutes. The components operates from -40°C to 85°C in portable devices, personal healthcare products, and office and factory automation equipment.

Epson Toyocom Corporation’s Timing Products Division
800-922-7667, www.eea.epson.com

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