CY8C21634, CY8C21534
CY8C21434, CY8C21334, CY8C21234
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
1Power Vss Ground connection.
2IO I P0[7] Analog column mux input.
3IO I P0[5] Analog column mux input and column output.
4IO I P0[3] Analog column mux input and column output.
5IO I P0[1] Analog column mux input.
6IO P2[7]
7IO P2[5]
8IO I P2[3] Direct switched capacitor block input.
9IO 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
156 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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