Datasheet

CY8C21634, CY8C21534, CY8C21434
CY8C21334, CY8C21234
Document Number: 38-12025 Rev. AB Page 13 of 53
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 10. CY8C21001 56-pin PSoC Device
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
Pin Definitions
CY8C21001 56-pin SSOP
Pin No.
Type
Pin Name Description
Digital Analog
1 Power V
SS
Ground connection
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 components
17 Power V
SS
Ground connection
18 Power V
SS
Ground connection
19 I/O P3[3]