參數(shù)資料
型號: DS21Q42T+
廠商: Maxim Integrated Products
文件頁數(shù): 95/116頁
文件大?。?/td> 0K
描述: IC FRAMER ENHANCED T1 4X 128TQFP
標(biāo)準(zhǔn)包裝: 72
控制器類型: T1 調(diào)幀器
接口: 并行/串行
電源電壓: 2.97 V ~ 3.63 V
電流 - 電源: 75mA
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 128-LQFP
供應(yīng)商設(shè)備封裝: 128-LQFP(14x20)
包裝: 管件
DS21Q42
8 of 116
2. DS21Q42 PIN DESCRIPTION
Table 2-1. PIN DESCRIPTION SORTED BY PIN NUMBER
PIN
SYMBOL
TYPE DESCRIPTION
1
TCHBLK0
O
Transmit Channel Block from Framer 0
2
TPOS0
O
Transmit Bipolar Data from Framer 0
3
TNEG0
O
Transmit Bipolar Data from Framer 0
4
RLINK0
O
Receive Link Data from Framer 0
5
RLCLK0
O
Receive Link Clock from Framer 0
6
RCLK0
I
Receive Clock for Framer 0
7
RNEG0
I
Receive Bipolar Data for Framer 0
8
RPOS0
I
Receive Bipolar Data for Framer 0
9RSIG0
[RCHCLK0]
O
[O]
Receive Signaling Output from Framer 0 [Receive Channel
Clock from Framer 0]
10
RCHBLK0
O
Receive Channel Block from Framer 0
11
RSYSCLK0
I
Receive System Clock for Elastic Store in Framer 0
12
RSYNC0
I/O
Receive Sync for Framer 0
13
RSER0
O
Receive Serial Data from Framer 0
14
VSS
Signal Ground
15
VDD
Positive Supply Voltage
16
SPARE1
[RMSYNC0]
[O]
Reserved. Must be left unconnected for normal operation
[Receive Multiframe Sync from Framer 0]
17
RFSYNC0
O
Receive Frame Sync from Framer 0
18
JTRST
[RLOS/LOTC0]
I [O]
JTAG Reset [Receive Loss of Sync/Loss of Transmit clock
from Framer 0]
19
TCLK0
I
Transmit Clock for Framer 0
20
TLCLK0
O
Transmit Link Clock from Framer 0
21
TSYNC0
I/O
Transmit Sync for Framer 0
22
TLINK0
I
Transmit Link Data for Framer 0
23
A0
I
Address Bus Bit 0; LSB
24
A1
I
Address Bus Bit 1
25
A2
I
Address Bus Bit 2
26
A3
I
Address Bus Bit 3
27
A4
I
Address Bus Bit 4
28
A5
I
Address Bus Bit 5
29
A6/ALE (AS)
I
Address Bus Bit 6; MSB or Address Latch Enable (Address
Strobe)
30
INT*
O
Receive Alarm Interrupt for all Four Framers
31
TSYSCLK1
I
Transmit System Clock for Elastic Store in Framer 1
32
TSER1
I
Transmit Serial Data for Framer 1
33
TSSYNC1
I
Transmit Sync for Elastic Store in Framer 1
34
TSIG1
[TCHCLK1]
I [O]
Transmit Signaling Input for Framer 1
[Transmit Channel Clock from Framer 1]
35
TCHBLK1
O
Transmit Channel Block from Framer 1
36
TPOS1
O
Transmit Bipolar Data from Framer 1
37
TNEG1
O
Transmit Bipolar Data from Framer 1
38
RLINK1
O
Receive Link Data from Framer 1
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