CY3242-IOXLITE Cypress Semiconductor Corp, CY3242-IOXLITE Datasheet - Page 10

• Manufacturer Part Number: CY3242-IOXLITE
• Description: KIT EVAL PSOC I2C PORT EXP
• Manufacturer: Cypress Semiconductor Corp
• Series: PSoC®r

Specifications of CY3242-IOXLITE

• Main Purpose: Interface, GPIO Expander
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: CY8C24894, CY8C9520
• Primary Attributes: 8-Bit 20-Port GPIO Expander
• Secondary Attributes: 8 Switches, 11 LEDs
• Silicon Manufacturer: Cypress
• Application Sub Type: Expander
• Kit Application Type: Interface
• Silicon Core Number: CY8C9520, CY8C9540 And CY8C9560
• Features: I2C Port Expander Lite Demo Kit
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Other names: 428-2023; CY3242-IOXLITE

I2C address is set to 0x46.
4.3
To set the I2C address to 0x56 (0101110), set A0 to Weak Pull Down, A1 to Weak Pull Up, A2 to Weak Pull
Down, and A3 to Strong Pull Up. The resulting I2C address is:
I
10
2
C address is set to 0x56.
A6
7
0
N/A
A5
6
1
N/A
I2C Port Expander Address Example 3.
A4
5
0
N/A
A3
4
0
J2 = S
J3 = H
A2
3
0
J4 = W
J5 = L
A1
2
0
J6 = W
J7 = H
A0
1
0
J9 = W
J8 = H
N/A
0
0
N/A
Expander Address Pins
I2C Address Bits
Bit Value
Jumper Setting
I2C Port Expander Lite Demo Kit Guide