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参数资料
型号： DS21FF42
厂商： Maxim Integrated Products
文件页数： 33/114页
文件大小： 0K
描述： IC FRAMER T1 4X4 16CH 300-BGA
产品培训模块： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装： 40
控制器类型： T1 调帧器
接口： 并行/串行
电源电压： 2.97 V ~ 3.63 V
电流 - 电源： 300mA
工作温度： 0°C ~ 70°C
安装类型： 表面贴装
封装/外壳： 300-BBGA
供应商设备封装： 300-PBGA（27x27）
包装： 管件
DS21FT42/DS21FF42
25 of 114
Signal Name:
JTRST*
Signal Description:
IEEE 1149.1 Test Reset
Signal Type:
Input
This signal is used to asynchronously reset the test access port controller. At power up, JTRST* must be
set low and then high. This action will set the device into the DEVICE ID mode allowing normal device
operation. If boundary scan is not used and FMS = 0, this pin should be held low. This function is
available when FMS = 0. When FMS=1, this pin is held LOW internally. This pin is pulled up internally
by a 10K ohm resistor. FMS is tied to ground for the DS21FF42/DS21FT42.
Signal Name:
JTMS
Signal Description:
IEEE 1149.1 Test Mode Select
Signal Type:
Input
This pin is sampled on the rising edge of JTCLK and is used to place the test port into the various defined
IEEE 1149.1 states. This pin is pulled up internally by a 10K ohm resistor. If not used, this pin should
be left unconnected. This function is available when FMS = 0. FMS is tied to ground for the
DS21FF42/DS21FT42.
Signal Name:
JTCLK
Signal Description:
IEEE 1149.1 Test Clock Signal
Signal Type:
Input
This signal is used to shift data into JTDI pin on the rising edge and out of JTDO pin on the falling edge.
If not used, this pin should be connected to VSS. This function is available when FMS = 0. FMS is tied
to ground for the DS21FF42/DS21FT42.
Signal Name:
JTDI
Signal Description:
IEEE 1149.1 Test Data Input
Signal Type:
Input
Test instructions and data are clocked into this pin on the rising edge of JTCLK. This pin is pulled up
internally by a 10K ohm resistor. If not used, this pin should be left unconnected. This function is
available when FMS = 0. FMS is tied to ground for the DS21FF42/DS21FT42.
Signal Name:
JTDO
Signal Description:
IEEE 1149.1 Test Data Output
Signal Type:
Output
Test instructions and data are clocked out of this pin on the falling edge of JTCLK. If not used, this pin
should be left unconnected. This function is available when FMS = 0. FMS is tied to ground for the
DS21FF42/DS21FT42.
SUPPLY PINS
Signal Name:
VDD
Signal Description:
Positive Supply
Signal Type:
Supply
2.97 to 3.63 volts.
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参数描述
DS21FF42+ 功能描述:网络控制器与处理器 IC 4x4 16/4x3 12 Chnl T1/T1 Framer 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
DS21FF42N 功能描述:网络控制器与处理器 IC 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
DS21FF42N+ 功能描述:网络控制器与处理器 IC 4x4 16/4x3 12 Chnl T1/T1 Framer 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
DS21FF44 功能描述:网络控制器与处理器 IC 4x4 16/4x3 12 Chnl E1/E1 Framer 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
DS21FF44N 功能描述:网络控制器与处理器 IC 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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