【商品說明】
I / O引腳用完了嗎?這個功能強大的模組允許使用者僅使用兩個I / O進行控制即可擴展到最多16個I / O! PCF8575通過I2C介面控制,並具有16位准雙向輸入/輸出引腳。
在板載3.3V轉換器電路上,不焊接VCC-VDD則PCF8575的電壓準位為3.3V。焊接電壓準位將與輸入VCC相同。
注意:出貨VCC-VDD已焊接(電壓輸入2.5 to 5.5 V)
【產品規格】
- Operating supply voltage 2.5 to 5.5 V
- Low standby current consumption of 10 µA maximum
- I2C-bus to parallel port expander
- 400 kbits/s FAST I2C-bus
- Open-drain interrupt output
- 16-bit remote I/O port for the I2C-bus
- Compatible with most microcontrollers
- Latched outputs with high current drive capability for directly driving LEDs
- Address by 3 hardware address pins for use of up to 8 device
- I2C Address:0x20(default),Over A1 or A2 change address.


