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CY8C20X36/46/66/96
Document Number: 001-12696 Rev. *E
Page 10 of 39
24-Pin QFN with USB
Table 4. Pin Definitions - CY8C20396 PSoC Device [2, 3]
Pin No.
Type
Name
Description
Digital
Analog
1
I/O
I
P2[5]
2
I/O
I
P2[3]
3
I/O
I
P2[1]
4
IOHR
I
P1[7]
I2C SCL, SPI SS
5
IOHR
I
P1[5]
I2C SDA, SPI MISO
6
IOHR
I
P1[3]
SPI CLK
7
IOHR
I
P1[1]
ISSP CLK, I2C SCL, SPI MOSI
8
Power
VSS
Ground
9
I/O
I
D+
USB D+
10
I/O
I
D-
USB D-
11
Power
VDD
Supply
12
IOHR
I
P1[0]
ISSP DATA, I2C SDA
13
IOHR
I
P1[2]
14
IOHR
I
P1[4]
Optional external clock input
(EXTCLK)
15
IOHR
I
P1[6]
16
RESET INPUT
XRES
Active high external reset with
internal pull down
17
IOH
I
P0[0]
18
IOH
I
P0[2]
19
IOH
I
P0[4]
20
IOH
I
P0[6]
21
IOH
I
P0[7]
22
IOH
I
P0[5]
23
IOH
I
P0[3]
Integrating input
24
IOH
I
P0[1]
Integrating input
CP
Power
VSS
Thermal pad must be
connected to Ground
LEGEND I = Input, O = Output, OH = 5 mA High Output Drive, R = Regulated Output
I2 C SDA, SPI MISO, P1[5]
QFN
( Top View)
I2 C SCL, SPI SS, P1[7]
SPI CLK, P1[3]
1
2
3
4
5
6
18
17
16
15
14
13
P0[0]
XRES
P0[2]
P2[1]
P1[2]
P1[4] , EXTCLK
P1[6]
P2[5]
P2[3]
Figure 4. CY8C20396 PSoC Device
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