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Document Number: 38-12025 Rev. *O Page 13 of 45
56-Pin Part Pinout
The 56-pin SSOP part is for the CY8C21001 On-Chip Debug (OCD) PSoC device.
Note This part is only used for in-circuit debugging. It is NOT available for production.
Figure 12. CY8C21001 56-Pin PSoC Device
Table 7. Pin Definitions - CY8C21001 56-Pin (SSOP)
Pin No.
Type
Pin Name Description
Digital Analog
1 Power Vss Ground connection.
2 IO I P0[7] Analog column mux input.
3 IO I P0[5] Analog column mux input and column output.
4 IO I P0[3] Analog column mux input and column output.
5 IO I P0[1] Analog column mux input.
6 IO P2[7]
7 IO P2[5]
8 IO I P2[3] Direct switched capacitor block input.
9 IO I P2[1] Direct switched capacitor block input.
10 NC No connection.
11 NC No connection.
12 NC No connection.
13 NC No connection.
14 OCD OCDE OCD even data IO.
15 OCD OCDO OCD odd data output.
16 Power SMP Switch Mode Pump (SMP) connection to required external components.
17 Power Vss Ground connection.
18 Power Vss Ground connection.
SSOP
1
56 Vdd
2
AI, P0[7]
55
P0[6], AI
3
AI, P0[5]
54
P0[4], AI
4
AI, P0[3]
53
P0[2], AI
5
AI, P0[1]
52
P0[0], AI
6
P2[7]
51
P2[6]
7
P2[5]
50
P2[4]
8
P2[3]
49
P2[2]
9P2[1] 48
P2[0]
10
NC
47
NC
11
NC
46
NC
12NC 45 P3[2]
13
NC
44
P3[0]
14OCDE 43
CCLK
15
OCDO
42
HCLK
16
SMP
41
XRES
17
Vss
40
NC
18
Vss
39
NC
19
P3[3]
38
NC
20
P3[1]
37
NC
21
NC
36
NC
22
NC
35
NC
23I2C SCL, P1[7] 34
P1[6]
24
I2C SDA, P1[5]
33
P1[4], EXTCLK
25
NC
32
P1[2]
26
P1[3]
31
P1[0], I2C
SDA, SDATA
27
SCLK, I2C SCL, P1[1]
30 NC
28Vss
29
NC
Vss
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