CY8C95xx Preliminary Data Sheet
2. Pinouts and Pin Descriptions
2.1.2
48-Pin Part Pinout
Table 2-2. 48-Pin Part Pinout (SSOP)
Pin
CY8C9540 48-Pin Device
Pin Name
No.
Description
Port 0, Bit 0, PWM 7.
1
2
3
4
5
6
7
8
9
GPort0_Bit0_PWM7
GPort0_Bit1_PWM5
GPort0_Bit2_PWM3
GPort0_Bit3_PWM1
GPort0_Bit4_PWM7
GPort0_Bit5_PWM5
GPort0_Bit6_PWM3
GPort0_Bit7_PWM1
GPort3_Bit0_PWM7
Port 0, Bit 1, PWM 5.
Port 0, Bit 2, PWM 3.
Port 0, Bit 3, PWM 1.
Port 0, Bit 4, PWM 7.
Port 0, Bit 5, PWM 5.
Port 0, Bit 6, PWM 3.
Port 0, Bit 7, PWM 1.
Port 3, Bit 0, PWM 7.
Port 3, Bit 1, PWM 5.
Port 3, Bit 2, PWM 3.
Port 3, Bit 3, PWM 1.
Ground connection.
GPort0_Bit0_PWM7
1
2
3
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
Vdd
GPort0_Bit1_PWM5
GPort0_Bit2_PWM3
GPort0_Bit3_PWM1
GPort0_Bit4_PWM7
GPort0_Bit5_PWM5
GPort0_Bit6_PWM3
GPort0_Bit7_PWM1
GPort3_Bit0_PWM7
GPort1_Bit0_PWM6
GPort1_Bit1_PWM4
GPort1_Bit2_PWM2
GPort1_Bit3_PWM0
GPort1_Bit4_PWM6
4
5
6
7
GPort1_Bit5_PWM4/A6
GPort1_Bit6_PWM2/A5
GPort1_Bit7_PWM0/A4
8
9
10 GPort3_Bit1_PWM5
11 GPort3_Bit2_PWM3
GPort3_Bit1_PWM5 10
GPort3_Bit2_PWM3
GPort3_Bit3_PWM1 12
GPort4_Bit0_PWM6
GPort4_Bit1_PWM4
GPort4_Bit2_PWM2
GPort4_Bit3_PWM0
XRES
11
12 GPort3_Bit3_PWM1
13 VSS
SSOP
Vss
13
14
14 GPort3_Bit4_PWM7
15 GPort3_Bit5_PWM5
16 GPort3_Bit6_PWM3
17 GPort3_Bit7_PWM1
18 GPort5_Bit2_PWM3
19 GPort5_Bit3_PWM1
Port 3, Bit 4, PWM 7.
Port 3, Bit 5, PWM 5.
Port 3, Bit 6, PWM 3.
Port 3, Bit 7, PWM 1.
Port 5, Bit 2, PWM 3.
Port 5, Bit 3, PWM 1.
GPort3_Bit4_PWM7
GPort3_Bit5_PWM5 15
GPort3_Bit6_PWM3 16
GPort3_Bit7_PWM1 17
GPort4_Bit4_PWM6
GPort4_Bit5_PWM4
GPort4_Bit6_PWM2
33
32
GPort5_Bit2_PWM3 18
GPort5_Bit3_PWM1 19
31
30
29
28
27
26
25
GPort4_Bit7_PWM0
GPort5_Bit0_PWM2
GPort5_Bit1_PWM0
GPort2_Bit0_PWM6/A3
GPort2_Bit1_PWM4/A2
INT
I2C Serial Clock (SCL)
20
I2C Serial Data (SDA)
21
I2C Clock.
I2C Data.
I2CSerial Clock (SCL)
I2C Serial Data(SDA)
GPort2_Bit3_PWM3/A1
A0
20
21
22
23
24
22 GPort2_Bit3_PWM3/A1
23 A0
Port 2, Bit 3, PWM 3, Address 1.
Address 0.
Vss
GPort2_Bit2_PWM0/WD
24 VSS
Ground connection.
Port 2, Bit 2, PWM 0, E2 Write Disable.
25 GPort2_Bit2_PWM0/WD
26 INT
27 GPort2_Bit1_PWM4/A2
28 GPort2_Bit0_PWM6/A3
29 GPort5_Bit1_PWM0
30 GPort5_Bit0_PWM2
31 GPort4_Bit7_PWM0
32 GPort4_Bit6_PWM2
33 GPort4_Bit5_PWM4
34 GPort4_Bit4_PWM6
35 XRES
Port 2, Bit 1, PWM 4, Address 2.
Port 2, Bit 0, PWM 6, Address 3.
Port 5, Bit 1, PWM 0.
Port 5, Bit 0, PWM 2.
Port 4, Bit 7, PWM 0.
Port 4, Bit 6, PWM 2.
Port 4, Bit 5, PWM 4.
Port 4, Bit 4, PWM 6.
Active high external reset with internal pull
down.
36 GPort4_Bit3_PWM0
37 GPort4_Bit2_PWM2
38 GPort4_Bit1_PWM4
39 GPort4_Bit0_PWM6
40 GPort1_Bit7_PWM0/A4
41 GPort1_Bit6_PWM2/A5
42 GPort1_Bit5_PWM4/A6
43 GPort1_Bit4_PWM6
44 GPort1_Bit3_PWM0
45 GPort1_Bit2_PWM2
46 GPort1_Bit1_PWM4
47 GPort1_Bit0_PWM6
48 Vdd
Port 4, Bit 3, PWM 0.
Port 4, Bit 2, PWM 2.
Port 4, Bit 1, PWM 4.
Port 4, Bit 0, PWM 6.
Port 1, Bit 7, PWM 0, Address 4.
Port 1, Bit 6, PWM 2, Address 5.
Port 1, Bit 5, PWM 4, Address 6.
Port 1, Bit 4, PWM 6.
Port 1, Bit 3, PWM 0.
Port 1, Bit 2, PWM 2.
Port 1, Bit 1, PWM 4.
Port 1, Bit 0, PWM 6.
Supply voltage.
August 17, 2005
Document No. 38-12036 Rev. *A
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