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参数资料
型号： DS21Q42TN
厂商： DALLAS SEMICONDUCTOR
元件分类： Digital Transmission Controller
英文描述： DATACOM, FRAMER, PQFP128
封装： TQFP-128
文件页数： 2/119页
文件大小： 1309K
代理商： DS21Q42TN
DS21Q42
10 of 119
PIN
SYMBOL
TYPE
DESCRIPTION
81
RSYSCLK2
I
Receive System Clock for Elastic Store in Framer 2
82
RSYNC2
I/O
Receive Sync for Framer 2
83
RSER2
O
Receive Serial Data from Framer 2
84
JTDI
[RMSYNC2]
I
[O]
JTAG Test Data Input
[Receive Multiframe Sync from Framer 2]
85
RFSYNC2
O
Receive Frame Sync from Framer 2
86
JTDO
[RLOS/LOTC2]
O
[O]
JTAG Test Data Output
[Receive Loss of Sync/Loss of Transmit clock from Framer 2]
87
TCLK2
I
Transmit Clock for Framer 2
88
TLCLK2
O
Transmit Link Clock from Framer 2
89
TSYNC2
I/O
Transmit Sync for Framer 2
90
TLINK2
I
Transmit Link Data for Framer 2
91
TSYSCLK3
I
Transmit System Clock for Elastic Store in Framer 3
92
TSER3
I
Transmit Serial Data for Framer 3
93
TSSYNC3
I
Transmit Sync for Elastic Store in Framer 3
94
TSIG3
[TCHCLK3]
I
[O]
Transmit Signaling Input for Framer 3
[Transmit Channel Clock from Framer 3]
95
TCHBLK3
O
Transmit Channel Block from Framer 3
96
TPOS3
O
Transmit Bipolar Data from Framer 3
97
TNEG3
O
Transmit Bipolar Data from Framer 3
98
RLINK3
O
Receive Link Data from Framer 3
99
RLCLK3
O
Receive Link Clock from Framer 3
100
RCLK3
I
Receive Clock for Framer 3
101
RNEG3
I
Receive Bipolar Data for Framer 3
102
RPOS3
I
Receive Bipolar Data for Framer 3
103
RSIG3
[RCHCLK3]
O
[O]
Receive Signaling Output from Framer 3
[Receive Channel Clock from Framer 3]
104
RCHBLK3
O
Receive Channel Block from Framer 3
105
RSYSCLK3
I
Receive System Clock for Elastic Store in Framer 3
106
RSYNC3
I/O
Receive Sync for Framer 3
107
RSER3
O
Receive Serial Data from Framer 3
108
8MCLK
[RMSYNC3]
O
[O]
8 MHz Clock
[Receive Multiframe Sync from Framer 3]
109
RFSYNC3
O
Receive Frame Sync from Framer 3
110
VSS
-
Signal Ground
111
VDD
-
Positive Supply Voltage
112
CLKSI
[RLOS/LOTC3]
I
[O]
8MCLK Clock Reference Input
[Receive Loss of Sync/Loss of Transmit clock from Framer 3]
113
TCLK3
I
Transmit Clock for Framer 3
114
TLCLK3
O
Transmit Link Clock from Framer 3
115
TSYNC3
I/O
Transmit Sync for Framer 3
116
TLINK3
I
Transmit Link Data for Framer 3
117
D0 or AD0
I/O
Data Bus Bit or Address/Data Bit 0; LSB
118
D1 or AD1
I/O
Data Bus Bit or Address/Data Bit 1
119
D2 or AD2
I/O
Data Bus Bit or Address/Data Bit 2
120
D3 or AD3
I/O
Data Bus Bit or Address/Data Bit 3
121
D4 or AD4
I/O
Data Bus Bit or Address/Data Bit 4
相关PDF资料
PDF描述
DS21Q42T DATACOM, FRAMER, PQFP128
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DS21Q44TN DATACOM, FRAMER, PQFP128
DS21Q48N DATACOM, PCM TRANSCEIVER, PBGA144
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