参数资料
型号: DS1878T+
厂商: Maxim Integrated Products
文件页数: 41/101页
文件大小: 0K
描述: IC CTLR SFP W/DGTL LDD RX 28TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 60
类型: SFP+ 控制器
输入类型: 模拟,数字
输出类型: 数字
接口: I²C,LDD,串行
电流 - 电源: 2.5mA
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(5x5)
包装: 托盘
DS1878
SFP+ Controller with Digital LDD Interface
44
______________________________________________________________________________________
POWER-ON VALUE
X0XX 0XXXb
READ ACCESS
All
WRITE ACCESS
See below
MEMORY TYPE
Volatile
Write Access
N/A
All
N/A
All
N/A
6Eh
TXDS
TXDC
IN1S
RSELS
RSELC
TXFOUTS
RXL
RDYB
BIT 7
BIT 0
BIT 7
TXDS: TXD Status Bit. Reflects the logic state of the TXD pin (read only).
0 = TXD pin is logic-low.
1 = TXD pin is logic-high.
BIT 6
TXDC: TXD Software Control Bit. This bit allows for software control that is identical to the TXD pin.
See the section on TXD for further information. Its value is wire-ORed with the logic value of the
TXD pin (writable by all users).
0 = (Default).
1 = Forces the device into a TXD state regardless of the value of the TXD pin.
BIT 5
IN1S: IN1 Status Bit. Reflects the logic state of the IN1 pin (read only).
0 = IN1 pin is logic-low.
1 = IN1 pin is logic-high.
BIT 4
RSELS: RSEL Status Bit. Reflects the logic state of the RSEL pin (read only).
0 = RSEL pin is logic-low.
1 = RSEL pin is logic-high.
BIT 3
RSELC: RSEL Software Control Bit. This bit allows for software control that is identical to the RSEL
pin. Its value is wire-ORed with the logic value of the RSEL pin to create the RSELOUT pin’s logic
value (writable by all users).
0 = (Default).
1 = Forces the device into a RSEL state regardless of the value of the RSEL pin.
BIT 2
TXFOUTS: TXFOUT Status. Indicates the state the open-drain output is attempting to achieve.
0 = TXFOUT is pulling low.
1 = TXFOUT is high impedance.
BIT 1
RXL: Reflects the driven state of the LOSOUT pin (read only).
0 = LOSOUT pin is driven low.
1 = LOSOUT pin is pulled high.
BIT 0
RDYB: Ready Bar.
0 = VCC is above POA.
1 = VCC is below POA and/or too low to communicate over the I2C bus.
Lower Memory, Register 6Eh: STATUS
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