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參數(shù)資料
| 型號： | KS8999I |
| 廠商： | Micrel Inc |
| 文件頁數(shù)： | 52/52頁 |
| 文件大小： | 0K |
| 描述： | IC SWITCH 9-PORT 10/100 208-PQFP |
| 標準包裝： | 100 |
| 系列： | * |
| 類型： | * |
| 應用： | * |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 208-MQFP，208-PQFP |
| 供應商設備封裝： | 208-PQFP（28x28） |
| 包裝： | 散裝 |
| 配用： | 576-1023-ND - BOARD EVAL EXPERIMENT FOR KS8999 |
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January 2005
9
KS8999
Micrel
Pin Number
Pin Name
Type(Note 1)
Port
Pin Function
70
FXSD[7]
Ipd
7
Fiber signal detect
71
FXSD[8]
Ipd
8
Fiber signal detect
72
GND_RCV
GND
Ground for clock recovery circuit
73
GND_RCV
GND
Ground for clock recovery circuit
74
VDD_RCV
Pwr
2.0V for clock recovery circuit
75
VDD_RCV
Pwr
2.0V for clock recovery circuit
76
GND_RCV
GND
Ground for clock recovery circuit
77
GND_RCV
GND
Ground for clock recovery circuit
78
VDD_RCV
Pwr
2.0V for clock recovery circuit
79
VDD_RCV
Pwr
2.0V for clock recovery circuit
80
BTOUT2
O
Factory test pin – leave open for normal operation
81
CTOUT2
O
Factory test pin – leave open for normal operation
82
RLPBK
I
Enable loop back for testing – pull-down/float for normal operation
83
MUX[1]
I
Factory test pin – float for normal operation
84
MUX[2]
I
Factory test pin – float for normal operation
85
TEST[1]
I
Factory test pin – float for normal operation
86
TEST[2]
I
Factory test pin – float for normal operation
87
AUTOMDIX
I
Auto MDI/MDIX enable and disable – pull-up/float enable; pull-down
disable
88
T[1]
Ipu
Factory test pin – float for normal operation
89
T[2]
Ipd
Factory test pin – float for normal operation
90
T[3]
Ipd
Factory test pin – float for normal operation
91
EN1P
Ipd
Enable 802.1p for all ports
92
SDA
Ipd/O
Serial data from EEPROM or processor
93
SCL
Ipd/O
Clock for EEPROM or from processor
94
VDD
Pwr
2.0V for core digital circuitry
95
GND
Ground for digital circuitry
96
MTXEN
Ipd
9
MII transmit enable
97
MTXD[3]
Ipd
9
MII transmit bit 3
98
MTXD[2]
Ipd
9
MII transmit bit 2
99
MTXD[1]
Ipd
9
MII transmit bit 1
100
MTXD[0]
Ipd
9
MII transmit bit 0
101
MTXER
Ipd
9
MII transmit error
102
MTXC
Ipd/O
9
MII transmit clock
103
MCOL
Ipd/O
9
MII collision detected
104
MCRS
Ipd/O
9
MII carrier sense
Note 1.
Pwr = power supply
GND = ground
I = input
O = output
I/O = bi-directional
Ipu = input w/ internal pull-up
Ipd = input w/ internal pull-down
Opu = output w/ internal pull-up
Opd = output w/ internal pull-down
Ipd/O = input w/ internal pull-down during reset, output pin otherwise
Ipu/O = input w/ internal pull-up during reset, output pin otherwise
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