21ic News Microchip Technology Inc. announces the introduction of a new family of independent real-time clock/calendar (RTCC) devices. The MCP795WXX/BXX RTCC devices feature a 10 MHz SPI interface, non-volatile memory and a cost-effective combination of features that rival competitive devices. These new devices reduce component count and cost for smart energy sources such as thermostats, electricity meters and commercial refrigeration, appliances such as coffee machines, gas stoves and microwave ovens, and automobiles such as dashboard controls, car radios and GPS. Applications such as consumer electronics (such as office equipment and video systems), and communications markets such as radios, cordless phones, and network systems.
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The MCP795WXX/BXX RTCC devices feature a millisecond alarm and a 10 MHz SPI interface that supports extremely fast data access, enabling longer MCU sleep and power-saving modes with less battery drain. Other low-power features include two event-detect inputs that consume only the minimum current of the RTCC device, but wake up the MCU when a switch is pressed or a tampering system event occurs. In addition, these devices include three non-volatile memories as a standard product: EEPROM, SRAM, and a unique ID (blank or pre-programmed MAC address can be specified when ordered) to further reduce component count and serialization programming. Related costs. Provides backup power with automatic battery switching, which records the time and duration of any power failure; and these devices feature a wide range of digital trimming to compensate for crystal frequency drift due to temperature, enabling a wide range of temperatures Accurate timing is achieved within range. In designs that use a second low-frequency crystal, the boot clock option provides a 32 kHz clock frequency at power-up, eliminating the need for a second crystal.
Randy Drwinga, vice president of memory products at Microchip, said: "With the new SPI RTCC device, Microchip offers customers a high-quality timing solution that meets many other system requirements. We leverage Microchip's core competencies at a lower cost. An effective combination of features is integrated into one device to successfully bring this latest collection to customers."
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