CY8CLED16
Document Number: 001-13105 Rev. *C
Page 11 of 43
Table 4. 48-Pin Part Pinout (QFN)[2]
Pin
No.
Type
Pin
Name
Description
Figure 5. 48-Pin Device
Digital
Analog
1
I/O
I
P2[3]
Direct switched capacitor block input.
2
I/O
I
P2[1]
Direct switched capacitor block input.
3
I/O
P4[7]
4
I/O
P4[5]
5
I/O
P4[3]
6
I/O
P4[1]
7
Power
SMP
Switch Mode Pump (SMP) connection to external
components required.
8
I/O
P3[7]
9
I/O
P3[5]
10
I/O
P3[3]
11
I/O
P3[1]
12
I/O
P5[3]
13
I/O
P5[1]
14
I/O
P1[7]
I2C Serial Clock (SCL).
15
I/O
P1[5]
I2C Serial Data (SDA).
16
I/O
P1[3]
17
I/O
P1[1]
Crystal (XTALin), I2C Serial Clock (SCL),
ISSP-SCLK[1].
18
Power
Vss
Ground connection.
19
I/O
P1[0]
Crystal (XTALout), I2C Serial Data (SDA),
ISSP-SDATA[1].
20
I/O
P1[2]
21
I/O
P1[4]
Optional External Clock Input (EXTCLK).
22
I/O
P1[6]
23
I/O
P5[0]
24
I/O
P5[2]
25
I/O
P3[0]
26
I/O
P3[2]
27
I/O
P3[4]
28
I/O
P3[6]
29
Input
XRES
Active high external reset with internal pull down.
30
I/O
P4[0]
31
I/O
P4[2]
32
I/O
P4[4]
33
I/O
P4[6]
34
I/O
I
P2[0]
Direct switched capacitor block input.
35
I/O
I
P2[2]
Direct switched capacitor block input.
36
I/O
P2[4]
External Analog Ground (AGND).
37
I/O
P2[6]
External Voltage Reference (VREF).
38
I/O
I
P0[0]
Analog column mux input.
39
I/O
I/O
P0[2]
Analog column mux input and column output.
40
I/O
I/O
P0[4]
Analog column mux input and column output.
41
I/O
I
P0[6]
Analog column mux input.
42
Power
Vdd
Supply voltage.
43
I/O
I
P0[7]
Analog column mux input.
44
I/O
I/O
P0[5]
Analog column mux input and column output.
45
I/O
I/O
P0[3]
Analog column mux input and column output.
46
I/O
I
P0[1]
Analog column mux input.
47
I/O
P2[7]
48
I/O
P2[5]
LEGEND: A = Analog, I = Input, and O = Output.
MLF
(Top View)
10
11
12
A, I, P2[3]
A, I, P2[1]
P4[7]
P4[5]
P4[3]
P4[1]
SMP
P3[7]
P3[5]
P3[3]
P3[1]
P5[3]
35
34
33
32
31
30
29
28
27
26
25
36
P2[2], A, I
P2[0], A, I
P4[6]
P4[4]
P4[2]
P4[0]
XRES
P3[6]
P3[4]
P3[2]
P3[0]
P2[4], External AGND
1
2
3
4
5
6
7
8
9
Note
2. 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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