Product Specifications

CY8C29466/CY8C29566
CY8C29666/CY8C29866
Document Number: 38-12013 Rev. AB Page 12 of 67
48-Pin Part Pinout
Table 4. 48-Pin Part Pinout (SSOP)
Pin
No.
Type
Pin
Name
Description
Figure 6. CY8C29666 48-Pin PSoC Device
Digital Analog
1 I/O I P0[7] Analog column mux input
2 I/O I/O P0[5] Analog column mux input and column output
3 I/O I/O P0[3] Analog column mux input and column output
4 I/O I P0[1] Analog column mux input
5 I/O P2[7]
6 I/O P2[5]
7 I/O I P2[3] Direct switched capacitor block input
8 I/O I P2[1] Direct switched capacitor block input
9 I/O P4[7]
10 I/O P4[5]
11 I/O P4[3]
12 I/O P4[1]
13 Power SMP Switch mode pump (SMP) connection to
external components required
14 I/O P3[7]
15 I/O P3[5]
16 I/O P3[3]
17 I/O P3[1]
18 I/O P5[3]
19 I/O P5[1]
20 I/O P1[7] I
2
C SCL
21 I/O P1[5] I
2
C SDA
22 I/O P1[3]
23 I/O P1[1] Crystal (XTALin), I
2
C SCL, ISSP-SCLK
[7]
24 Power V
SS
Ground connection
25 I/O P1[0] Crystal (XTALout), I
2
C SDA, ISSP-SDATA
[7]
26 I/O P1[2]
27 I/O P1[4] Optional EXTCLK
28 I/O P1[6]
29 I/O P5[0]
30 I/O P5[2]
31 I/O P3[0]
32 I/O P3[2]
33 I/O P3[4]
34 I/O P3[6]
35 Input XRES Active high external reset with internal
pull-down
36 I/O P4[0]
37 I/O P4[2]
38 I/O P4[4]
39 I/O P4[6]
40 I/O I P2[0] Direct switched capacitor block input
41 I/O I P2[2] Direct switched capacitor block input
42 I/O P2[4] External Analog Ground (AGND)
43 I/O P2[6] External Voltage Reference (VREF)
44 I/O I P0[0] Analog column mux input
45 I/O I/O P0[2] Analog column mux input and column output
46 I/O I/O P0[4] Analog column mux input and column output
47 I/O I P0[6] Analog column mux input
48 Power V
DD
Supply voltage
LEGEND: A = Analog, I = Input, and O = Output.
SSOP
A, I, P0[7]
V
DD
A, IO, P0[5]
P0[6], A, I
A, IO, P0[3]
P0[2], A, IO
A, I, P0[1]
P0[4], A, IO
P2[7]
P0[0], A, I
P2[5]
P2[6], External VREF
A, I, P2[3]
P2[4], External AGND
A, I, P2[1]
P2[2], A, I
P4[7]
P2[0], A, I
P4[5]
P4[6]
P4[3]
P4[4]
P4[1]
P4[2]
SMP
P4[0]
P3[7]
XRES
P3[5]
P3[6]
P3[3]
P3[4]
P3[1]
P3[2]
P5[3]
P3[0]
P5[1]
P5[2]
I2C SCL, P1[7]
P5[0]
I2C SDA, P1[5]
P1[6]
P1[3]
P1[4], EXTCLK
I2C SCL, XTALin, P1[1] P1[2]
V
SS
P1[0], XTALout, I2C SDA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
43
44
42
40
41
39
38
37
36
35
33
34
32
31
30
29
28
27
26
25
Note
7. These are the ISSP pins, which are not High Z at POR. See the PSoC Programmable System-on-Chip Technical Reference Manual for details.