CY8C24123A
CY8C24223A
CY8C24423A
Document Number: 38-12028 Rev. *V Page 14 of 71
56-Pin Part Pinout
The 56-pin SSOP part is for the CY8C24000A On-Chip Debug (OCD) PSoC device.
Note This part is only used for in-circuit debugging. It is NOT available for production.
Table 6. 56-Pin SSOP OCD
Pin No.
Type
Pin
Name
Description
Figure 8. CY8C24000A 56-Pin PSoC Device
Digital Analog
1 NC No connection. Pin must be left floating
2 I/O I P0[7] Analog column mux input
3 I/O I P0[5] Analog column mux input and column output
4 I/O I P0[3] Analog column mux input and column output
5 I/O I P0[1] Analog column mux input
6 I/O P2[7]
7 I/O P2[5]
8 I/O I P2[3] Direct switched capacitor block input
9 I/O I P2[1] Direct switched capacitor block input
10 NC No connection. Pin must be left floating
11 NC No connection. Pin must be left floating
12 NC No connection. Pin must be left floating
13 NC No connection. Pin must be left floating
14 OCD OCDE OCD even data I/O
15 OCD OCDO OCD odd data output
16 Power SMP SMP connection to required external compo-
nents
17 NC No connection. Pin must be left floating
18 NC No connection. Pin must be left floating
19 NC No connection. Pin must be left floating
20 NC No connection. Pin must be left floating
21 NC No connection. Pin must be left floating
22 NC No connection. Pin must be left floating
23 I/O P1[7] I
2
C SCL
24 I/O P1[5] I
2
C SDA
25 NC No connection. Pin must be left floating
26 I/O P1[3]
27 I/O P1[1] XTALin, I
2
C SCL, ISSP-SCLK
[9]
28 Power V
DD
Supply voltage
29 NC No connection. Pin must be left floating
30 NC No connection. Pin must be left floating
31 I/O P1[0] XTALout, I
2
C SDA, ISSP-SDATA
[9]
32 I/O P1[2]
33 I/O P1[4] Optional EXTCLK
34 I/O P1[6]
35 NC No connection. Pin must be left floating
36 NC No connection. Pin must be left floating
37 NC No connection. Pin must be left floating
38 NC No connection. Pin must be left floating
39 NC No connection. Pin must be left floating
40 NC No connection. Pin must be left floating
41 Input XRES Active high external reset with internal pull-down.
42 OCD HCLK OCD high speed clock output.
43 OCD CCLK OCD CPU clock output.
44 NC No connection. Pin must be left floating
45 NC No connection. Pin must be left floating
46 NC No connection. Pin must be left floating
47 NC No connection. Pin must be left floating
48 I/O I P2[0] Direct switched capacitor block input.
49 I/O I P2[2] Direct switched capacitor block input.
50 I/O P2[4] External AGND.
51 I/O P2[6] External V
REF
.
52 I/O I P0[0] Analog column mux input.
53 I/O I P0[2] Analog column mux input and column output.
54 I/O I P0[4] Analog column mux input and column output.
55 I/O I P0[6] Analog column mux input.
56 Power V
DD
Supply voltage.
LEGEND: A = Analog, I = Input, O = Output, and OCD = On-Chip Debug.
Note
9. These are the ISSP pins, which are not high Z at POR. See the PSoC Technical Reference Manual for details.
SSOP
1
56
255
354
453
5
52
6
51
750
849
948
10
47
11 46
12 45
13
44
14 43
15
42
16
41
17
40
18 39
19 38
20
37
21 36
22
35
23 34
24 33
25 32
26 31
27
30
28
29
V
DD
P0[6], AI
P0[4], AIO
P0[2], AIO
P0[0], AI
P2[6], External VRef
P2[4], External AGND
P2[2], AI
P2[0], AI
NC
NC
NC
NC
CCLK
HCLK
XRES
NC
NC
NC
NC
NC
NC
P1[6]
P1[4], EXTCLK
P1[2]
P1[0], XTALOut, I2C SDA, SDATA
NC
NC
AI, P0[7]
AIO, P0[5]
AIO, P0[3]
AI, P0[1]
P2[7]
P2[5]
AI, P2[3]
AI, P2[1]
NC
NC
NC
NC
OCDE
OCDO
SMP
NC
NC
NC
NC
NC
NC
I2C SCL, P1[7]
I2C SDA, P1[5]
NC
P1[3]
SCLK, I2C SCL, XTALIn, P1[1]
V
SS
NC
(46 pages)
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