CY8C20X34 Datasheet, PDF (20/218 Pages) Cypress Semiconductor – Technical Reference Manual (TRM)

Pin Information
1.1.2 32-Pin Part Pinout
Table 1-2. 32-Pin Part Pinout (QFN**)
Pin
Type
No. _{Digital Analog}
Name
1
IO
I P0[1]
2
IO
I P2[7]
3
IO
I P2[5]
4
IO
I P2[3]
5
IO
I P2[1]
6
IO
I P3[3]
7
IO
I P3[1]
8 IOH
I P1[7]
9 IOH
I P1[5]
10 IOH
I P1[3]
11 IOH
I P1[1]
12
Power
Vss
13 IOH
I P1[0]
14 IOH
I P1[2]
15 IOH
I P1[4]
16 IOH
I P1[6]
17
Input
XRES
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 IO
I P0[0]
25 IO
I P0[2]
26 IO
I P0[4]
27 IO
I P0[6]
28
Power
Vdd
29 IO
I P0[7]
30 IO
I P0[5]
31 IO
I P0[3]
32
Power
Vss
Description
I2C SCL, SPI SS
I2C SDA, SPI MISO
SPI CLK
CLK*, I2C SCL, SPI MOSI
Ground connection
DATA*, I2C SDA
Optional external clock input (EXTCLK)
Active high external reset with internal
pull down
Analog bypass
Supply voltage
Integrating input
Ground connection
CY8C20434 32-Pin PSoC Device
AI, P0[1] 1
AI, P2[7] 2
AI, P2[5] 3
AI, P2[3] 4
AI, P2[1] 5
AI, P3[3] 6
AI, P3[1] 7
AI, I2C SCL, SPI SS, P1[7] 8
QFN
(Top View)
24 P0[0], AI
23 P2[6], AI
22 P2[4], AI
21 P2[2], AI
20 P2[0], AI
19 P3[2], AI
18 P3[0], AI
17 XRES
LEGEND A = Analog, I = Input, O = Output, H = 5 mA High Output Drive.
* These are the ISSP pins, which are not High Z at POR (Power
On Reset).
** The center pad on the QFN package should be connected to
ground (Vss) for best mechanical, thermal, and electrical perfor-
mance. If not connected to ground, it should be electrically
floated and not connected to any other signal.
20
PSoC CY8C20x34 TRM, Version 1.0