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CY8C20234-12LKXAT Datasheet(PDF) 8 Page - Cypress Semiconductor

Part # CY8C20234-12LKXAT
Description  Automotive PSoC Programmable System-on-Chip
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY8C20234-12LKXAT Datasheet(HTML) 8 Page - Cypress Semiconductor

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CY8C20234
Document Number: 001-54650 Rev. *E
Page 8 of 30
Pinouts
This section describes, lists, and illustrates the automotive CY8C20x34 PSoC device pins and pinout configurations.
The automotive CY8C20x34 PSoC device is available in the packages listed and shown in the following tables. Every port pin (labeled
with a “P”) is capable of digital I/O and can connect to the common analog bus. However, VSS, VDD, and XRES are not capable of
digital I/O.
16-Pin Part Pinout
Figure 2. CY8C20234 16-Pin PSoC Device
Table 2. Pin Definitions – CY8C20234 16-Pin (QFN)
Pin No.
Type
Name
Description
Digital
Analog
1
I/O
I
P2[5]
2
I/O
I
P2[1]
3
I/OH
I
P1[7]
I2C serial clock (SCL), SPI slave select (SS)
4
I/OH
I
P1[5]
I2C serial data (SDA), SPI master-in-slave-out (MISO)
5
I/OH
I
P1[3]
SPI serial clock (SCLK)
6
I/OH
I
P1[1]
ISSP-SCLK[4], I2C serial clock (SCL), SPI master-out-slave-in (MOSI)
7
Power
VSS
Ground connection
8
I/OH
I
P1[0]
ISSP-SDATA[4], I2C serial data (SDA)
9
I/OH
I
P1[2]
10
I/OH
I
P1[4]
Optional external clock (EXTCLK) input
11
Input
XRES
Active high external reset with internal pull-down
12
I/O
I
P0[4]
13
Power
VDD
Supply voltage
14
I/O
I
P0[7]
15
I/O
I
P0[3]
Integrating input
16
I/O
I
P0[1]
A = Analog, I = Input, O = Output, OH = 5 mA High Output Drive
12
11
10
9
1
2
3
4
QFN
P0[4], AI
P1[2], AI
P1[4], AI, EXTCLK
XRES
AI, P2[5]
I2C SDA, SPI MISO, AI, P1[5]
I2C SCL, SPI SS, AI, P1[7]
AI, P2[1]
Note
4. These are the ISSP pins, that are not High Z after exiting a reset state. See the PSoC Technical Reference Manual for CY8C20x34 devices for details.
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