CY8C24094, CY8C24794
CY8C24894, CY8C24994
Document Number: 38-12018 Rev. *U
Page 10 of 50
8.2 56-Pin Part Pinout (with XRES)
Table 8-2. 56-Pin Part Pinout (QFN[3])
Pin
No.
Type
Name
Description
Figure 8-2. CY8C24894 56-Pin PSoC Device
Digital Analog
1
I/O
I, M
P2[3] Direct switched capacitor block input.
2
I/O
I, M
P2[1] Direct switched capacitor block input.
3
I/O
M
P4[7]
4
I/O
M
P4[5]
5
I/O
M
P4[3]
6
I/O
M
P4[1]
7
I/O
M
P3[7]
8
I/O
M
P3[5]
9
I/O
M
P3[3]
10
I/O
M
P3[1]
11
I/O
M
P5[7]
12
I/O
M
P5[5]
13
I/O
M
P5[3]
14
I/O
M
P5[1]
15
I/O
M
P1[7] I2C Serial Clock (SCL).
16
I/O
M
P1[5] I2C Serial Data (SDA).
17
I/O
M
P1[3]
18
I/O
M
P1[1] I2C Serial Clock (SCL), ISSP SCLK[2].
19
Power
Vss
Ground connection.
20
USB
D+
21
USB
D-
22
Power
Vdd
Supply voltage.
23
I/O
P7[7]
24
I/O
P7[0]
25
I/O
M
P1[0] I2C Serial Data (SDA), ISSP SDATA[2].
26
I/O
M
P1[2]
27
I/O
M
P1[4] Optional External Clock Input (EXTCLK).
28
I/O
M
P1[6]
29
I/O
M
P5[0]
Pin
No.
Type
Name
Description
30
I/O
M
P5[2]
Digital Analog
31
I/O
M
P5[4]
44
I/O
M
P2[6] External Voltage Reference (VREF) input.
32
I/O
M
P5[6]
45
I/O
I, M
P0[0] Analog column mux input.
33
I/O
M
P3[0]
46
I/O
I, M
P0[2] Analog column mux input.
34
I/O
M
P3[2]
47
I/O
I, M
P0[4] Analog column mux input VREF.
35
I/O
M
P3[4]
48
I/O
I, M
P0[6] Analog column mux input.
36
Input
XRES Active high external reset with internal
pull down.
49
Power
Vdd
Supply voltage.
37
I/O
M
P4[0]
50
Power
Vss
Ground connection.
38
I/O
M
P4[2]
51
I/O
I, M
P0[7] Analog column mux input,.
39
I/O
M
P4[4]
52
I/O
I/O, M
P0[5] Analog column mux input and column output.
40
I/O
M
P4[6]
53
I/O
I/O, M
P0[3] Analog column mux input and column output.
41
I/O
I, M
P2[0] Direct switched capacitor block input.
54
I/O
I, M
P0[1] Analog column mux input.
42
I/O
I, M
P2[2] Direct switched capacitor block input.
55
I/O
M
P2[7]
43
I/O
M
P2[4] External Analog Ground (AGND) input.
56
I/O
MP2[5]
LEGEND A = Analog, I = Input, O = Output, and M = Analog Mux Input.
QFN
(Top View)
A, I, M, P2[3]
A, I, M, P2[1]
M, P4[7]
M, P4[5]
M, P4[3]
M, P4[1]
M, P3[7]
M, P3[5]
M, P3[3]
M, P3[1]
M, P5[7]
M, P5[5]
M, P5[3]
M, P5[1]
1
2
3
4
5
6
7
8
9
10
11
12
13
14
P2[2], A, I, M
P2[0], A, I, M
P4[6], M
P4[4], M
P4[2], M
P4[0], M
XRES
P3[4], M
P3[2], M
P3[0], M
P5[6], M
P5[4], M
P5[2], M
P5[0], M
42
41
40
39
38
37
36
35
34
33
32
31
30
29
Notes
2. These are the ISSP pins, which are not High Z at POR. See the PSoC Technical Reference Manual for details.
3. The center pad on the QFN package should be connected to ground (Vss) for best mechanical, thermal, and electrical performance. If not connected to ground, it
should be electrically floated and not connected to any other signal.
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