CY8C20X36A CYPRESS [Cypress Semiconductor], CY8C20X36A Datasheet - Page 14

• Manufacturer Part Number: CY8C20X36A
• Description: CapSense Applications Operating Range: 1.71 V to 5.5 V
• Manufacturer: CYPRESS [Cypress Semiconductor]

48-Pin QFN
Table 8. Pin Definitions – CY8C20636A PSoC Device
Document Number: 001-54459 Rev. *E
Notes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
LEGEND A = Analog, I = Input, O = Output, NC = No Connection H = 5 mA High Output Drive, R = Regulated Output.
21. On power-up , the SDA(P1[0]) drives a strong high for 256 sleep clock cycles and drives resistive low for the next 256 sleep clock cycles. The SCL(P1[1])line drives
22. The center pad (CP) on the QFN package must be connected to ground (V
23. Alternate SPI clock.
resistive low for 512 sleep clock cycles and both the pins transition to high impedance state. On reset, after XRES de-asserts, the SDA and the SCL lines drive
resistive low for 8 sleep clock cycles and transition to high impedance state. Hence, during power-up or reset event, P1[1] and P1[0] may disturb the I2C bus. Use
alternate pins if you encounter issues.
it must be electrically floated and not connected to any other signal
IOHR
IOHR
IOHR
IOHR
IOHR
IOHR
IOHR
IOHR
IOH
IOH
IOH
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Power
Power
Input
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
NC
P2[7]
P2[5]
P2[3]
P2[1]
P4[3]
P4[1]
P3[7]
P3[5]
P3[3]
P3[1]
P1[7]
P1[5]
NC
NC
P1[3]
P1[1]
V
DNU
DNU
V
P1[0]
P1[2]
P1[4]
P1[6]
XRES
P3[0]
P3[2]
P3[4]
P3[6]
P4[0]
P4[2]
P2[0]
P2[2]
P2[4]
P2[6]
P0[0]
P0[2]
P0[4]
SS
DD
No connection
Crystal output (XOut)
Crystal input (XIn)
I
I
No connection
No connection
SPI CLK
ISSP CLK
Ground connection
Supply voltage
ISSP DATA
CLK
Optional external clock input
(EXTCLK)
Active high external reset with
internal pull-down
2
2
C SCL, SPI SS
C SDA, SPI MISO
[23]
[21]
[21]
, I
, I
2
C SCL, SPI MOSI
2
C SDA, SPI
[21, 22]
40
41
42
43
44
45
46
47
48
CP
SS
) for best mechanical, thermal, and electrical performance. If not connected to ground,
IOH
IOH
IOH
IOH
IOH
AI , I2 C SCL, SPI SS, P1[7]
Power
Power
Power
I
I
I
I
I
AI , XOut, P2[5]
AI , XIn , P2[3]
P0[6]
V
NC
NC
P0[7]
P0[5]
P0[3]
V
P0[1]
V
DD
SS
SS
Figure 9. CY8C20636A PSoC Device
AI , P2[7]
AI , P2[1]
AI , P3[7]
AI , P4[3]
AI , P4[1]
AI , P3[5]
AI , P3[3]
AI P 3[1]
NC
Supply voltage
No connection
No connection
Integrating input
Ground connection
Center pad must be connected to ground
12
1
2
3
4
5
6
7
8
9
10
11
CY8C20X36A/46A/66A/96A
( Top View )
QFN
36
35
34
33
32
31
30
29
28
27
26
25
P2[6] , AI
P2[4] , AI
P2[2] , AI
P2[0] , AI
P4[2] , AI
P4[0] , AI
P3[6] , AI
P3[4] , AI
P3[2] , AI
P3[0 ] , AI
P1[6] , AI
Page 14 of 43
XRES
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