CG64xxAM Preliminary Data Sheet
1. Pin Information
1.1.2
20-Pin Part Pinout
Table 1-2. 20-Pin Part Pinout (SSOP)
Type
Pin
CG6457AM 20-Pin PSoC Device
Name
Description
No.
Digital Analog
1
2
IO
IO
IO
IO
I
I
I
I
P0[7]
P0[5]
P0[3]
P0[1]
Vss
Analog column mux input.
Analog column mux input.
Analog column mux input.
Analog column mux input.
Ground connection.
A,I,P0[7]
A, I,P0[5]
A, I,P0[3]
A, I,P0[1]
Vss
Vdd
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
P0[6],A,I
P0[4],A,I
P0[2],A,I
P0[0],A,I
XRES
P1[6]
P1[4],EXTCLK
P1[2]
3
4
5
Power
Power
SSOP
I2C SCL,P1[7]
I2C SDA,P1[5]
P1[3]
I2C SCL,P1[1]
Vss
6
IO
IO
IO
IO
P1[7]
P1[5]
P1[3]
P1[1]
Vss
I2C Serial Clock (SCL).
I2C Serial Data (SDA).
7
8
9
I2C Serial Clock (SCL), ISSP-SCLK.
Ground connection.
P1[0],I2C SDA
10
10
11
12
13
IO
IO
IO
P1[0]
P1[2]
P1[4]
I2C Serial Data (SDA), ISSP-SDATA.
Optional External Clock Input (EXT-
CLK).
14
15
IO
P1[6]
Input
XRES
Active high external reset with internal
pull down.
16
17
18
19
20
IO
IO
IO
IO
I
I
I
I
P0[0]
P0[2]
P0[4]
P0[6]
Vdd
Analog column mux input.
Analog column mux input.
Analog column mux input.
Analog column mux input.
Supply voltage.
Power
LEGEND A = Analog, I = Input, and O = Output.
May 24, 2005
Document No. 001-00353 Rev. **
9
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