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参数资料
型号： DS21448L
厂商： Maxim Integrated Products
文件页数： 34/60页
文件大小： 0K
描述： IC LIU QUAD E1/T1/J1 128-LQFP
产品培训模块： Lead (SnPb) Finish for COTS
产品变化通告： Product Discontinuation 20/Feb/2012
标准包装： 72
类型： 线路接口装置（LIU）
驱动器/接收器数： 4/4
规程： T1/E1/J1
电源电压： 3.135 V ~ 3.465 V
安装类型： 表面贴装
封装/外壳： 128-LQFP
供应商设备封装： 128-LQFP（14x20）
包装： 管件
DS21448 3.3V T1/E1/J1 Quad Line Interface
4 of 60
LIST OF TABLES
Table 2-A. Bus Interface Selection .............................................................................................................7
Table 2-B. Pin Assignments .......................................................................................................................7
Table 2-C. Parallel Interface Mode Pin Description....................................................................................9
Table 2-D. Serial Interface Mode Pin Description ....................................................................................10
Table 2-E. Hardware Interface Mode Pin Description ..............................................................................11
Table 3-A. DS21448 vs. DS21Q348 Pin Differences ...............................................................................13
Table 4-A. Loopback Control in Hardware Mode .....................................................................................14
Table 4-B. Transmit Data Control in Hardware Mode...............................................................................14
Table 4-C. Receive Sensitivity Settings in Hardware Mode .....................................................................14
Table 4-D. Monitor Gain Settings in Hardware Mode...............................................................................14
Table 4-E. Internal Rx Termination Select in Hardware Mode .................................................................14
Table 4-F. MCLK Selection in Hardware Mode ........................................................................................15
Table 4-G. Parallel Port Mode Selection ..................................................................................................18
Table 4-H. Register Map ..........................................................................................................................18
Table 4-I. Receive Sensitivity Settings .....................................................................................................22
Table 4-J. Backplane Clock Select...........................................................................................................22
Table 4-K. Monitor Gain Settings .............................................................................................................22
Table 4-L. Internal Rx Termination Select ................................................................................................22
Table 5-A. Received Alarm Criteria ..........................................................................................................25
Table 5-B. Receive Level Indication .........................................................................................................27
Table 6-A. Transmit Code Length ............................................................................................................29
Table 6-B. Receive Code Length .............................................................................................................29
Table 6-C. Definition of Received Errors ..................................................................................................32
Table 6-D. Function of ECRS Bits and RNEG Pin....................................................................................32
Table 7-A. Line Build-Out Select for E1 in Register CCR4 (ETS = 0) ......................................................34
Table 7-B. Line Build-Out Select for T1 in Register CCR4 (ETS = 1) ......................................................34
Table 7-C. Line Build-Out Select for E1 in Register CCR4 (ETS = 0) Using Alternate Transformer
Configuration......................................................................................................................................35
Table 7-D. Transformer Specifications (3.3V Operation)..........................................................................35
Table 8-A. Instruction Codes for IEEE 1149.1 Architecture .....................................................................45
Table 8-B. ID Code Structure ...................................................................................................................46
Table 8-C. Device ID Codes.....................................................................................................................46
Table 8-D. Boundary Scan Control Bits....................................................................................................47
Table 10-A. AC Characteristics—Multiplexed Parallel Port (BIS0 = 0).....................................................49
Table 10-B. AC Characteristics—Nonmultiplexed Parallel Port (BIS0 = 1) ..............................................51
Table 10-C. AC Characteristics—Serial Port (BIS1 = 1, BIS0 = 0)...........................................................53
Table 10-D. AC Characteristics—Receive Side .......................................................................................54
Table 10-E. AC Characteristics—Transmit Side ......................................................................................55
Table 13-A. Thermal Characteristics—BGA.............................................................................................60
Table 13-B. Theta-JA (
θJA) vs. Airflow—BGA...........................................................................................60
Table 13-C. Thermal Characteristics—LQFP...........................................................................................60
Table 13-D. Theta-JA (
θJA) vs. Airflow—LQFP.........................................................................................60
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DS21448L+ 功能描述:网络控制器与处理器 IC 3.3V E1/T1/J1 Quad Interface RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS21448L+W 功能描述:网络控制器与处理器 IC 3.3V E1/T1/J1 Quad Interface RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS21448LDK 功能描述:KIT DESIGN LIU DS21448L T1/J1/E1 RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 传感器类型:CMOS 成像，彩色（RGB） 传感范围:WVGA 接口:I²C 灵敏度:60 fps 电源电压:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相关产品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP
DS21448LN 功能描述:网络控制器与处理器 IC 3.3V E1/T1/J1 Quad Interface RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS21448LN+ 功能描述:网络控制器与处理器 IC 3.3V E1/T1/J1 Quad Interface RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
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