Datasheet

CY8C24123A
CY8C24223A
CY8C24423A
Document Number: 38-12028 Rev. *R Page 8 of 65
Pinouts
This section describes, lists, and illustrates the CY8C24x23A PSoC device pins and pinout configurations. Every port pin (labeled
with a “P”) is capable of digital I/O. However, V
SS
, V
DD
, SMP, and XRES are not capable of digital I/O.
8-Pin Part Pinout
Note
3. These are the ISSP pins, which are not high Z at POR. See the PSoC Technical Reference Manual for details.
Table 2. 8-Pin PDIP and SOIC
Pin
No.
Type
Pin
Name
Description
Figure 3. CY8C24123A 8-Pin PSoC Device
Digital Analog
1 I/O I/O P0[5] Analog column mux input and column
output
2 I/O I/O P0[3] Analog column mux input and column
output
3 I/O P1[1] Crystal input (XTALin), I
2
C serial clock
(SCL), ISSP-SCLK
[3]
4 Power V
SS
Ground connection
5 I/O P1[0] Crystal output (XTALout), I
2
C serial
data (SDA), ISSP-SDATA
[3]
6 I/O I P0[2] Analog column mux input
7 I/O I P0[4] Analog column mux input
8 Power V
DD
Supply voltage
LEGEND: A = Analog, I = Input, and O = Output.
PDIP
SOIC
1
2
3
4
8
7
6
5
V
DD
P0[4], A, I
P0[2], A, I
P1[0], XTALout, I2C SDA
A, IO, P0[5]
A, IO, P0[3]
I2C SCL, XTALin, P1[1]
V
SS