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参数资料
| 型号： | DS21FF44 |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 34/117页 |
| 文件大小： | 0K |
| 描述： | IC FRAMER E1 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： | E1 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 |
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DS21FT44/DS21FF44
23 of 117
Signal Name:
RMSYNC
Signal Description:
Receive Multiframe Sync
Signal Type:
Output
An extracted pulse, one RSYSCLK wide, is output at this pin, which identifies multiframe boundaries. If
the receive side elastic store is disabled, then this output will output multiframe boundaries associated
with RCLK. This function is available when FMS = 1 (DS21Q43 emulation). This signal is not bonded
out in the DS21FF44/DS21FT44.
Signal Name:
RSYSCLK
Signal Description:
Receive System Clock
Signal Type:
Input
1.544MHz or 2.048MHz clock. Only used when the elastic store function is enabled. Should be
connected low in applications that do not use the elastic store. Can be burst at rates up to 8.192MHz. This
pin is connected to the TSYSCLK signal in the DS21FF44/DS21FT44.
Signal Name:
RSIG
Signal Description:
Receive Signaling Output
Signal Type:
Output
Outputs signaling bits in a PCM format. Updated on rising edges of RCLK when the receive side elastic
store is disabled. Updated on the rising edges of RSYSCLK when the receive side elastic store is enabled.
This function is available when FMS = 0. FMS is connected to ground for the DS21FF44/DS21FT44.
Signal Name:
RLOS/LOTC
Signal Description:
Receive Loss of Sync / Loss of Transmit Clock
Signal Type:
Output
A dual function output that is controlled by the TCR2.0 control bit. This pin can be programmed to either
toggle high when the synchronizer is searching for the frame and multiframe or to toggle high if the
TCLK pin has not been toggled for 5s. This function is available when FMS = 1 (DS21Q43 emulation).
This signal is not bonded out in the DS21FF44/DS21FT44.
Signal Name:
CLKSI
Signal Description:
8MHz Clock Reference
Signal Type:
Input
A 2.048MHz reference clock used in the generation of 8MCLK. This function is available when
FMS = 0. FMS is connected to ground for the DS21FF44/DS21FT44.
Signal Name:
8MCLK
Signal Description:
8 MHz Clock
Signal Type:
Output
An 8.192MHz output clock that is referenced to the clock that is input at the CLKSI pin. This function is
available when FMS = 0. FMS is connected to ground for the DS21FF44/DS21FT44.
Signal Name:
RPOS
Signal Description:
Receive Positive Data Input
Signal Type:
Input
Sampled on the falling edge of RCLK for data to be clocked through the receive side framer. RPOS and
RNEG can be connected together for an NRZ interface. Connecting RPOS to RNEG disables the bipolar
violation monitoring circuitry.
相关PDF资料 |
PDF描述 |
|---|---|
| DS21FT44N+ | IC FRAMER 4X4 16CH 300-BGA |
| DS21Q352B | IC TXRX QUAD T1/E1 3.3V 256-BGA |
| DS21Q41BT | IC FRAMER T1 QUAD 128-TQFP |
| DS21Q42T+ | IC FRAMER ENHANCED T1 4X 128TQFP |
| DS21Q43-ATN | IC FRAMER E1 QUAD 5V 128-TQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| DS21FT40 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:Four x Three 12 Channel E1 Framer |
| DS21FT40N | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| DS21FT42 | 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 |
| DS21FT42N | 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 |
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