參數(shù)資料
型號(hào)： DS2181AQ
廠商： DALLAS SEMICONDUCTOR
元件分類： Digital Transmission Controller
英文描述： DATACOM, FRAMER, PQCC44
封裝： PLASTIC, LCC-44
文件頁(yè)數(shù)： 27/32頁(yè)
文件大?。?/td> 377K
代理商： DS2181AQ
DS2181A
4 of 32
NOTES:
1. These output status pins are only available on the DS2181AQ.
2. If the TEST pin is tied low and CCR.1=0, then these pins will be tri–stated.
RECEIVE PIN DESCRIPTION (40-PIN DIP ONLY) Table 2B
PIN
SYMBOL
TYPE
DESCRIPTION
21
RRA
O
Receive Remote Alarm. Transitions high when alarm detected;
returns low when alarm cleared.
22
RMDA
O
Receive Distant Multiframe Alarm. Transitions high when alarm
detected; returns low when alarm cleared.
23
RAF
O
Receive Alignment Frame. High during frames containing the frame
alignment signal, low otherwise.
24
RCLK
I
Receive Clock. 2.048 MHz primary clock.
25
RCHCLK
O
Receive Channel Clock. 256 kHz clock, identifies timeslot
boundaries; useful for serial-to-parallel conversion of channel data.
26
RSER
O
Receive Channel Clock. 256 kHz clock, identifies timeslot
boundaries; useful for serial-to-parallel conversion of channel data.
27
RFSYNC
O
Receive Frame Sync. Trailing edge indicates start of frame.
28
RMSYNC
O
Receive Multiframe Sync. Low-high transition indicates start of
CAS multiframe; held high during frame 0.
29
RSD
O
Receive Signaling Data. Extracted timeslot 16 data; updated on
rising edge of RCLK.
30
RSTS
O
Receive Signaling Timeslot. High during timeslot 16 of every frame,
low otherwise.
31
RCSYNC
O
Receive CRC4 Sync. Low-high transition indicates start of CRC4
multiframe; held high during CRC4 frames 0 through 7 and held low
during frames 8 through 15.
33
RST
I
Reset. Must be asserted during device power-up and when changing
to/from the hardware mode.
34
35
RPOS
RNEG
I
Receive Bipolar Data. Sampled on falling edges of RCLK. Tie
together to receive NRZ data and disable BPV monitor circuitry.
36
RCL
O
Receive Carrier Loss. Low-high transition indicates loss of carrier.
37
RBV
O
Receive Bipolar Violation. Pulses high during detected bipolar
violations.
38
RFER
O
Receive Frame Error. Pulses high when frame alignment, CAS
multiframe alignment or CRC4 words received in error.
39
RLOS
O
Receive Loss of Sync. Indicates synchronizer status; high when
frame, CAS and/or CRC4 multiframe search underway, low
otherwise.
相關(guān)PDF資料
PDF描述
DS2182A DATACOM, FRAMER, PDIP28
DS2186S DATACOM, DIGITAL SLIC, PDSO20
DS2187 DATACOM, PCM TRANSCEIVER, PDIP18
DS2196LN DATACOM, FRAMER, PQFP100
DS21FF44 DATACOM, FRAMER, PBGA300
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS2181AQ/T&R 制造商:Maxim Integrated Products 功能描述:CEPT TRANCEIVER-PLCC-TRL - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC TXRX CEPT PRIMARY RATE 44PLCC
DS2181AQ/T&R+ 制造商:Maxim Integrated Products 功能描述:CEPT TRNSCVR 1TX 1RX 44PLCC - Tape and Reel
DS2181AQ/T&R 功能描述:網(wǎng)絡(luò)控制器與處理器 IC CEPT Primary Rate Transceiver RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS2181AQ+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC CEPT Primary Rate Transceiver RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS2181AQ+T&R 制造商:Maxim Integrated Products 功能描述: 制造商:Maxim Integrated Products 功能描述:CEPT TRNSCVR 1TX 1RX 44PLCC - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC TXRX CEPT PRIMARY RATE 44PLCC
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