MAIN FEATURES
• Tag supported: Mifare 1K, Mifare 4K, Mifare UltraLight
• Auto detecting tag
• Built-in antenna
• 0 to 400 kHz bit-wide I2C-bus communication
• DC2.5V to DC3.6V VDD operating, I/O pins are 5V tolerant
• Work current less then 40mA @3.3V
• Power down current less then 10uA
• Operating distance: Up to 50mm, depending on tag
• Storage temperature: -40 ºC ~ +85 ºC
• Operating temperature: -25 ºC ~ +70 ºC
• Dimension: 38 × 38 × 3 mm
• The OUT pin is low level indicating tag in, and high level indicating tag out
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