Cypress CY8C20x46 Manual De Usuario
CY8C20x36/46/66, CY8C20396
Document Number: 001-12696 Rev. *D
Page 11 of 34
32-Pin QFN
Table 5. Pin Definitions - CY8C20436/46/66 PSoC Device
Pin
No.
No.
Type
Name
Description
Figure 5. CY8C20436/46/66 PSoC Device
Digital
Analog
1
IOH
I
P0[1]
Integrating input
2
IO
I
P2[7]
3
IO
I
P2[5]
Crystal output (XOut)
4
IO
I
P2[3]
Crystal input (XIn)
5
IO
I
P2[1]
6
IO
I
P3[3]
7
IO
I
P3[1]
8
IOHR
I
P1[7]
I2C SCL, SPI SS
9
IOHR
I
P1[5]
I2C SDA, SPI MISO
10
IOHR
I
P1[3]
SPI CLK.
11
IOHR
I
P1[1]
ISSP CLK
, I2C SCL, SPI MOSI.
12
Power
Vss
Ground connection.
13
IOHR
I
P1[0]
ISSP DATA
, I2C SDA., SPI CLK
14
IOHR
I
P1[2]
15
IOHR
I
P1[4]
Optional external clock input
(EXTCLK)
(EXTCLK)
16
IOHR
I
P1[6]
17
Input
XRES
Active high external reset with
internal pull down
internal pull down
18
IO
I
P3[0]
19
IO
I
P3[2]
20
IO
I
P2[0]
21
IO
I
P2[2]
22
IO
I
P2[4]
23
IO
I
P2[6]
24
IOH
I
P0[0]
25
IOH
I
P0[2]
26
IOH
I
P0[4]
27
IOH
I
P0[6]
28
Power
Vdd
Supply voltage
29
IOH
I
P0[7]
30
IOH
I
P0[5]
31
IOH
I
P0[3]
Integrating input
32
Power
Vss
Ground connection
CP
Power
Vss
Center pad must be connected to
ground
ground
LEGEND A = Analog, I = Input, O = Output, OH = 5 mA High Output Drive, R = Regulated Output.
AI, P0[1]
AI, P2[7]
AI, P2[7]
AI, XOut, P2[5]
AI, XIn, P2[3]
AI, P2[1]
AI, P3[3]
AI, P3[3]
QFN
(Top View)
9
10
11
12
13
14
15
16
1
2
2
3
4
5
6
4
5
6
7
8
8
24
23
23
22
21
20
20
19
18
17
17
32
31
30
29
28
27
26
25
Vs
s
P0
[3
],
A
I
P0
[7
],
A
I
Vd
d
P0
[6
],
A
I
P0
[4
],
A
I
P0
[2
],
A
I
AI, P3[1]
AI, I2C SCL, SPI SS, P1[7]
P0[0], AI
P2[6], AI
P2[6], AI
P3[0], AI
XRES
AI
,
I2C
S
D
A
,
SP
I
M
IS
O
,
P
1
[5
]
AI
,
S
P
I
C
L
K,
P
1
[3
]
Vs
s
AI
,
P
1[
2
]
AI
,
E
X
T
C
L
K
,
P
1
[4
]
AI
,
P
1[
6
]
P2[4], AI
P2[2], AI
P2[0], AI
P2[2], AI
P2[0], AI
P3[2], AI
P0
[5
],
A
I
AI
, C
L
K
4
,
I2C
S
C
L
, S
P
I M
O
S
I,
P1
[1
]
AI
, D
A
T
A
1
, I2
C
SD
A
, S
P
I C
L
K, P
1
[0]