I2C Slave Interface Connector - Cypress I2C-USB Manual

Hardware
Figure 4-7. GPIO Pin Schematic
4.2.5

I2C Slave Interface Connector

The I2C slave interface connector is used to communicate data between the target device and
bridge board. It consists of two devices, MAX3378 and SN721.
MAX3378
Is used to convert the voltage level between the target device (Vcc) and host level voltage (V
■
Has bidirectional level translation, accepts V
■
times V (if source current is 0.02 mA) and V
L
SN721
An array of SCR/diode bipolar structure for ESD and over-voltage protection
■
28
+1.2 V (Min) to +5.5 V (Max); V
L
(Low) is 0.4 V
out
CY3240-I2USB I2C-USB Bridge Guide, Doc. # 001-66660 Rev.**
)
L
(High) is 0.6
out
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