WF5091A
Description
1 VDD - (+) supply voltage 2 XT I Crystal input connection pin 3 XTN O Crystal output connection pin INHN 4 (SCLK) Input pin controlled output state (Hi-Z output at LOW, 32.768kHz output at HIGH, I OPEN connection prohibit) SCLK (Clock input) pin in serial interface mode 5 VSS - (-) ground Serial interface enable pin 6 VPP - HIGH: serial interface mode (EEPROM read/write), LOW or OPEN: normal mode Pull-down resistor built-in Q 32.768kHz output pin 7 (SDATA) I/O SDATA(Data input/output) pin in serial interface mode *1.
