SW2-303

SW2-303 (SysCon)

First to be seen on PS3 Slim CECH-25xx with motherboards: JSD-00x/JTP-00x

Photo of a Syscon 'SW2-303' (QFP Packaging)

QFP Package : 128 pins
pin 1 left bottom at mark, counter clockwise from south (pins 1-38) to east (pins 39-64), north (pins 65-102), west (103-128))

Pinout

Pin #	Name	Port	Description
1
2			~1V @ standby
3			3V @ standby
4
5
6			3v @ standby
7
8
9
10
11
12			Connected to CONTOUR LEDs @PWR/EJT Board
13			Connected to Pogo pin @PWR/EJT Board, seems its a service pin.
14
15
16	BUZZER
17
18			3v @ standby
19
20
21			3v @ standby
22
23
24			3v @ standby
25			3v @ standby
26			CLK -> 1-2V Amplitude (32.768Khz?)
27
28			3v @ standby
29			1v @ standby
30			0.8v @ standby
31			2.2v @ standby
32
33	GROUND
34	GROUND
35			3v @ standby
36			3v @ standby
37			0.2v @ standby
38			0.2v @ standby
39
40
41			3v @ standby
42
43			3v @ standby
44
45
46
47			3v @ standby
48			3v @ standby
49
50
51
52
53
54
55
56	GROUND
57			3v @ standby
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76			3v @ standby
77			3v @ standby
78	SC_RxD
79	SC_TxD		3v @ standby
80
81			1v @ standby
82
83			2v @ standby
84			3v @ standby
85
86
87
88
89
90
91
92
93
94
95
96
97			3v @ standby
98
99
100			3v @ standby
101	GROUND
102
103
104
105
106
107
108
109			3v @ standby
110			3v @ standby
111			3v @ standby
112
113
114
115
116
117
118	ACDC_STBY
119
120
121
122
123
124
125
126	FAN_PWM		PWM Control for the Fan.
127
128