RT5C348B interface equivalent, 4-wire serial interface.
Timekeeping supply voltage ranging from 1.45 to 5.5V Low power consumption Rx5C348A: 0.35µA TYP (0.8µA MAX) at VDD=3V Rx5C348B: 0.55µA TYP (1.0µA MAX) at VDD=3V Only four.
Symbol CE Item Chip enable Input Description The CE pin is used for interfacing with the CPU. Should be held high to allow access to the CPU. Incorporates a pull-down resistor. Should be held low or open when the CPU is powered off. Allows a maximum .
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