參數(shù)資料
型號(hào)： DS21354LN
廠商： Maxim Integrated Products
文件頁數(shù)： 85/124頁
文件大?。?/td> 0K
描述： IC TXRX E1 1-CHIP 3.3V 100-LQFP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
產(chǎn)品變化通告： Product Discontinuation 20/Feb/2012
標(biāo)準(zhǔn)包裝： 90
功能： 單芯片收發(fā)器
接口： E1，HDLC
電路數(shù)： 1
電源電壓： 3.14 V ~ 3.47 V
電流 - 電源： 75mA
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 100-LQFP
供應(yīng)商設(shè)備封裝： 100-LQFP（14x14）
包裝： 托盤
包括： 遠(yuǎn)程和 AIS 警報(bào)檢測器 / 發(fā)生器
DS21354/DS21554 3.3V/5V E1 Single-Chip Transceivers
63 of 124
11.
CLOCK BLOCKING REGISTERS
The receive-channel blocking registers (RCBR1/RCBR2/RCBR3/RCBR4) and the transmit-channel
blocking registers (TCBR1/TCBR2/TCBR3/TCBR4) control the RCHBLK and TCHBLK pins,
respectively. (The RCHBLK and TCHBLK pins are user-programmable outputs that can be forced either
high or low during individual channels). These outputs can be used to block clocks to a USART or LAPD
controller in ISDN–PRI applications.
When the appropriate bits are set to one, the RCHBLK and TCHBLK pin will be held high during the
entire corresponding channel time. See the timing in Section 18 for an example. The TCBRs have
alternate mode of use. Via the CCR3.6 bit, the user has the option to use the TCBRs to determine on a
channel by channel basis, which signaling bits are to be inserted via the TSRs (the corresponding bit in
the TCBRs = 1) and which are to be sourced from the TSER or TSIG pins (the corresponding bit in the
TCBR = 0). See the timing in Section 18.2 for an example.
RCBR1/RCBR2/RCBR3/RCBR4: RECEIVE CHANNEL BLOCKING REGISTERS
(Address = 2B to 2E Hex)
(MSB)
(LSB)
CH8
CH7
CH6
CH5
CH4
CH3
CH2
CH1
RCBR1 (2B)
CH16
CH15
CH14
CH13
CH12
CH11
CH10
CH9
RCBR2 (2C)
CH24
CH23
CH22
CH21
CH20
CH19
CH18
CH17
RCBR3 (2D)
CH32
CH31
CH30
CH29
CH28
CH27
CH26
CH25
RCBR4 (2E)
SYMBOL
POSITION
NAME AND DESCRIPTION
CH1 to
CH32
RCBR1.0 to
RCBR4.7
Receive Channel Blocking Control Bits.
0 = force the RCHBLK pin to remain low during this channel time
1 = force the RCHBLK pin high during this channel time
TCBR1/TCBR2/TCBR3/TCBR4: TRANSMIT CHANNEL BLOCKING REGISTERS
(Address = 22 to 25 Hex)
(MSB)
(LSB)
CH8
CH7
CH6
CH5
CH4
CH3
CH2
CH1
TCBR1 (22)
CH16
CH15
CH14
CH13
CH12
CH11
CH10
CH9
TCBR2 (23)
CH24
CH23
CH22
CH21
CH20
CH19
CH18
CH17
TCBR3 (24)
CH32
CH31
CH30
CH29
CH28
CH27
CH26
CH25
TCBR4 (25)
SYMBOL
POSITION
NAME AND DESCRIPTION
CH1 to
CH32
TCBR1.0 to
TCBR4.7
Transmit Channel Blocking Control Bits.
0 = force the TCHBLK pin to remain low during this channel time
1 = force the TCHBLK pin high during this channel time
Note: If CCR3.6 = 1, then a zero in the TCBRs implies that signaling data is to be sourced from
TSER (or TSIG if CCR3.2 = 1), and a one implies that signaling data for that channel is to be
sourced from the Transmit Signaling (TS) registers. In this mode, the voice-channel numbering
scheme (CH1 to CH30) is used. See the following definition.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS21354LN+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 3.3/5V E1 Single Chip 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
DS21372 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:3.3V Bit Error Rate Tester BERT
DS21372T 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 3.3V Bit Error Rate Tester (BERT) 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
DS21372T+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 3.3V Bit Error Rate Tester (BERT) 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
DS21372TN 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 3.3V Bit Error Rate Tester (BERT) 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
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