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CY8C20224

CapSense® PSoC® Programmable System-on-Chip™

Cypress Semiconductor 

28-pin Part Pinout

CY8C20224, CY8C20324

CY8C20424, CY8C20524

Figure 5. CY8C20524 28-pin PSoC Device

Table 3. 28-pin Part Pinout (SSOP)

Pin No. Digital Analog Name

Description

1

I/O

I

P0[7]

2

I/O

I

P0[5]

3

I/O

I

P0[3] Integrating input

4

I/O

I

P0[1] Integrating input

5

I/O

I

P2[7]

6

I/O

I

P2[5]

7

I/O

I

P2[3]

8

I/O

I

P2[1]

9

Power

10

IOH

I

VSS

P1[7]

Ground connection

I2C SCL, SPI SS

11

IOH

I

P1[5] I2C SDA, SPI MISO

12

IOH

13

IOH

I

P1[3] SPI CLK

I

P1[1] CLK[4], I2C SCL, SPL MOSI

14

Power

15

IOH

I

VSS

P1[0]

Ground connection

Data[4], I2C SDA

16

IOH

I

P1[2]

17

IOH

I

P1[4] Optional external clock input (EXTCLK)

18

IOH

I

P1[6]

19

Input

XRES Active high external reset with internal pull-down

20

I/O

I

P2[0]

21

I/O

I

P2[2]

22

I/O

I

P2[4]

23

I/O

I

P2[6]

24

I/O

I

P0[0]

25

I/O

I

P0[2]

26

I/O

I

P0[4]

27

I/O

I

P0[6]

28

Power

VDD Supply voltage

A = Analog, I = Input, O = Output, OH = 5 mA High Output Drive

Note

4. These are the ISSP pins, that are not high Z at POR (Power on reset). Refer the PSoC Programmable System-on-Chip Technical Reference Manual for details.

Document Number: 001-41947 Rev. *L

Page 9 of 41

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