CY8C20X34 CYPRESS [Cypress Semiconductor], CY8C20X34 Datasheet - Page 21

• Manufacturer Part Number: CY8C20X34
• Description: Technical Reference Manual (TRM)
• Manufacturer: CYPRESS [Cypress Semiconductor]

1.1.3
Table 1-3. 48-Pin OCD Part Pinout (QFN**)
PSoC CY8C20x34 TRM, Version 1.0
LEGEND A = Analog, I = Input, O = Output, NC = No Connection, H = 5 mA High Output Drive.
Pin
No.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
1
2
3
4
5
6
7
8
9
IOH
IOH
IOH
IOH
IOH
IOH
IOH
IOH
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
Power
Input
* ISSP pin which is not HiZ at POR.
** The center pad on the QFN package should be connected to ground (Vss) for best mechanical, thermal, and electrical performance. If not
connected to ground, it should be electrically floated and not connected to any other signal.
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
48-Pin OCD Part Pinout
NC
P0[1]
P2[7]
P2[5]
P2[3]
P2[1]
P3[3]
P3[1]
P1[7]
P1[5]
NC
NC
NC
NC
P1[3]
P1[1]
Vss
CCLK
HCLK
P1[0]
P1[2]
NC
NC
NC
P1[4]
P1[6]
XRES
P3[0]
P3[2]
P2[0]
P2[2]
P2[4]
P2[6]
P0[0]
P0[2]
P0[4]
NC
NC
NC
P0[6]
Name
No internal connection
I2C SCL, SPI SS
I2C SDA, SPI MISO
No internal connection
No internal connection
No internal connection
No internal connection
SPI CLK
CLK*, I2C SCL, SPI MOSI
Ground connection
OCD CPU clock output
OCD high speed clock output
DATA*, I2C SDA
No internal connection
No internal connection
No internal connection
Optional external clock input (EXTCLK)
Active high external reset with internal
pull down
No internal connection
No internal connection
No internal connection
Analog bypass
Description
41
42
43
44
45
46
47
48
AI, I2C SDA, SPI MISO, P1[5]
No.
Pin
AI, I2C SCL, SPI SS, P1[7]
IO
IO
IO
Power
Power
I
I
I
AI, P0[1]
AI, P2[7]
AI, P2[5]
AI, P2[3]
AI, P2[1]
AI, P3[3]
AI, P3[1]
Vdd
OCDO
OCDE
P0[7]
P0[5]
P0[3]
Vss
NC
Name
CY8C20000 OCD PSoC Device
NC
NC
NC
Supply voltage
OCD even data IO
OCD odd data output
Integrating input
Ground connection
No internal connection
NOT FOR PRODUCTION
10
11
12
1
2
3
4
5
6
7
8
9
OCD QFN
(Top View)
Description
36
35
34
33
32
31
30
29
28
27
26
25
Pin Information
P0[4], AI
P0[2], AI
P0[0], AI
P2[6], AI
P2[4], AI
P2[2], AI
P2[0], AI
P3[2], AI
P3[0], AI
XRES
P1[6], AI
P1[4], EXTCLK, AI
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