1. Working voltage: 2.0 ~ 5.5V.
2. Standby current:< 1uA@VDD=3.0V 。
3. Output driving current: > 0 16mA@VDD=3.0V 。
4. Program adjustable flash frequency: 0.33hz ~ 8Hz,
5. Duty cycle: 8 / 1.
6. Flash when power on.
7. The on / off button is triggered. Press on once, and then off the next time.
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