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CY8C20534, CY8C20434
CY8C20334, CY8C20234
Document Number: 001-05356 Rev. *D
Page 8 of 34
24-Pin Part Pinout
Figure 5. CY8C20334 24-Pin PSoC Device
QFN
(Top View)
AI, P2[5]
AI, I2C SCL, SPI SS, P1[7]
AI, I2C SDA, SPI MISO, P1[5]
AI, SPI CLK, P1[3]
1
2
3
4
5
6
18
17
16
15
14
13
P0[2], AI
P0[0], AI
P0[4], AI
AI, P2[3]
AI, P2[1]
P1[6], AI
XRES
P2[0], AI
Table 2. 24-Pin Part Pinout (QFN [2])
Pin No.
Type
Name
Description
Digital
Analog
1
IO
I
P2[5]
2
IO
I
P2[3]
3
IO
I
P2[1]
4
IOH
I
P1[7]
I2C SCL, SPI SS.
5
IOH
I
P1[5]
I2C SDA, SPI MISO.
6
IOH
I
P1[3]
SPI CLK.
7
IOH
I
P1[1]
CLK[1], I2C SCL, SPI MOSI.
8
NC
No connection.
9
Power
Vss
Ground connection.
10
IOH
I
P1[0]
DATA[1], I2C SDA.
11
IOH
I
P1[2]
12
IOH
I
P1[4]
Optional external clock input (EXTCLK).
13
IOH
I
P1[6]
14
Input
XRES
Active high external reset with internal pull down.
15
IO
I
P2[0]
16
IO
I
P0[0]
17
IO
I
P0[2]
18
IO
I
P0[4]
19
IO
I
P0[6]
Analog bypass.
20
Power
Vdd
Supply voltage.
21
IO
I
P0[7]
22
IO
I
P0[5]
23
IO
I
P0[3]
Integrating input.
24
IO
I
P0[1]
CP
Power
Vss
Center pad is connected to ground.
A = Analog, I = Input, O = Output, OH = 5 mA High Output Drive
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