CY8C24123
CY8C24223, CY8C24423
Document Number: 38-12011 Rev. *G Page 8 of 43
Pinouts
The CY8C24x23 PSoC device is available in a variety of packages which are listed and illustrated in the following tables. Every port
pin (labeled with a “P”) is capable of Digital IO. However, Vss, Vdd, SMP, and XRES are not capable of Digital IO.
8-Pin Part Pinout
20-Pin Part Pinout
Table 3. 8-Pin Part Pinout (PDIP, SOIC)
Pin
No. Type Pin
Name Description Figure 6. CY8C24123 8-Pin PSoC Device
Digital Analog
1IO IO P0[5] Analog column mux input and column output
2IO IO P0[3] Analog column mux input and column output
3IO P1[1] Crystal Input (XTALin), I2C Serial Clock (SCL)
4Power Vss Ground connection
5IO P1[0] Crystal Output (XTALout), I2C Serial Data (SDA)
6IO IP0[2] Analog column mux input
7IO IP0[4] Analog column mux input
8Power Vdd Supply voltage
LEGEND: A = Analog, I = Input, and O = Output.
Table 4. 20-Pin Part Pinout (PDIP, SSOP, SOIC)
Pin
No. Type Pin
Name Description Figure 7. CY8C24223 20-Pin PSoC Device
Digital Analog
1IO I P0[7] Analog column mux input
2IO IO P0[5] Analog column mux input and column output
3IO IO P0[3] Analog column mux input and column output
4IO I P0[1] Analog column mux input
5Power SMP Switch Mode Pump (SMP) connection to external
components required
6IO P1[7] I2C Serial Clock (SCL
7IO P1[5] I2C Serial Data (SDA)
8IO P1[3]
9IO P1[1] Crystal Input (XTALin), I2C Serial Clock (SCL)
10 Power Vss Ground connection
11 IO P1[0] Crystal Output (XTALout), I2C Serial Data (SDA)
12 IO P1[2]
13 IO P1[4] Optional External Clock Input (EXTCLK)
14 IO P1[6]
15 Input XRES Active high external reset with internal pull down
16 IO I P0[0] Analog column mux input
17 IO I P0[2] Analog column mux input
18 IO I P0[4] Analog column mux input
19 IO I P0[6] Analog column mux input
20 Power Vdd Supply voltage
LEGEND: A = Analog, I = Input, and O = Output.
PDIP
SOIC
1
2
3
4
8
7
6
5
Vdd
P0[4], AI
P0[2], AI
P1[0], XTALout, I2C SDA
AIO, P0[5]
AIO, P0[3]
I2C SCL, XTALin, P1[1]
Vss
AI, P0[7]
AIO, P0[5]
AIO, P0[3]
AI, P0[1]
SMP
I2C SCL, P1[7]
I2C SDA, P1[5]
P1[3]
I2C SCL, XTALin, P1[1]
Vss
PDIP
SSOP
SOIC
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
Vdd
P0[6], AI
P0[4], AI
P0[2], AI
P0[0], AI
XRES
P1[6]
P1[4], EXTCLK
P1[2]
P1[0], XTALout, I2C SDA
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