![](http://datasheet.mmic.net.cn/Maxim-Integrated-Products/DS26900LN-_datasheet_97062/DS26900LN-_9.png)
__________________________________________________________________________________________DS26900
9
NAME
PIN
TYPE
FUNCTION
STMS2
84
O
Secondary Port 2 Test Mode Select (Internal 20k
Pulldown)
STCK3
80
O
Secondary Port 3 Test Clock
STDI3
81
O
Secondary Port 3 Serial Data Input
STDO3
82
Ipu
Secondary Port 3 Serial Data Out (Internal 10k
Pullup)
STRST3
79
O
Secondary Port 3 Test Reset (Active Low)
STMS3
78
O
Secondary Port 3 Test Mode Select (Internal 20k
Pulldown)
STCK4
75
O
Secondary Port 4 Test Clock
STDI4
76
O
Secondary Port 4 Serial Data Input
STDO4
77
Ipu
Secondary Port 4 Serial Data Out (Internal 10k
Pullup)
STRST4
74
O
Secondary Port 4 Test Reset (Active Low)
STMS4
73
O
Secondary Port 4 Test Mode Select (Internal 20k
Pulldown)
STCK5
70
O
Secondary Port 5 Test Clock
STDI5
71
O
Secondary Port 5 Serial Data Input
STDO5
72
Ipu
Secondary Port 5 Serial Data Out (Internal 10k
Pullup)
STRST5
69
O
Secondary Port 5 Test Reset (Active Low)
STMS5
68
O
Secondary Port 5 Test Mode Select (Internal 20k
Pulldown)
STCK6
65
O
Secondary Port 6 Test Clock
STDI6
66
O
Secondary Port 6 Serial Data Input
STDO6
67
Ipu
Secondary Port 6 Serial Data Out (Internal 10k
Pullup)
STRST6
64
O
Secondary Port 6 Test Reset (Active Low)
STMS6
63
O
Secondary Port 6 Test Mode Select (Internal 20k
Pulldown)
STCK7
59
O
Secondary Port 7 Test Clock
STDI7
60
O
Secondary Port 7 Serial Data Input
STDO7
61
Ipu
Secondary Port 7 Serial Data Out (Internal 10k
Pullup)
STRST7
58
O
Secondary Port 7 Test Reset (Active Low)
STMS7
57
O
Secondary Port 7 Test Mode Select (Internal 20k
Pulldown)
STCK8
54
O
Secondary Port 8 Test Clock
STDI8
55
O
Secondary Port 8 Serial Data Input
STDO8
56
Ipu
Secondary Port 8 Serial Data Out (Internal 10k
Pullup)
STRST8
53
O
Secondary Port 8 Test Reset (Active Low)
STMS8
52
O
Secondary Port 8 Test Mode Select (Internal 20k
Pulldown)
STCK9
49
O
Secondary Port 9 Test Clock
STDI9
50
O
Secondary Port 9 Serial Data Input
STDO9
51
Ipu
Secondary Port 9 Serial Data Out (Internal 10k
Pullup)
STRST9
47
O
Secondary Port 9 Test Reset (Active Low)
STMS9
46
O
Secondary Port 9 Test Mode Select (Internal 20k
Pulldown)
STCK10
43
O
Secondary Port 10 Test Clock
STDI10
44
O
Secondary Port 10 Serial Data Input
STDO10
45
Ipu
Secondary Port 10 Serial Data Out (Internal 10k
Pullup)
STRST10
42
O
Secondary Port 10 Test Reset (Active Low)
STMS10
41
O
Secondary Port 10 Test Mode Select (Internal 20k
Pulldown)