Datasheet > ZT490EREN

ZT490EREN

更新时间： 2024-02-28 15:15:28

品牌	Logo	应用领域
亚信 - ASIX		/
页数	文件大小	规格书
14页	619K
描述
Line Driver/Receiver,

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技术参数
数据手册

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ZT490EREN 技术参数

生命周期：	Transferred	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.74
Base Number Matches：	1

ZT490EREN 数据手册

Zywyn Corporation

ZT4xxER

ACElectricalCharacteristics(ZT485ER,ZT490ER,andZT491ER)

Unless otherwise stated, V_CC= +5.0V, T_A= T_minto T_max, typical values apply at V_CC= +5.0V and T_A= 25°C.

Parameter

Condition

Min

Typ

Max

Units

Transmitter Timing

Transmitter Propagation t_PLHR_DIFF= 54Ω, C_L= 50pF. Refers to figure 4.

Transmitter Propagation t_PHLR_DIFF= 54Ω, C_L= 50pF. Refers to figure 4.

Transmitter Output Skew t_SK|t_PLH- t_PHL

Transmitter Rise/Fall Time

Transmitter Output Enable

Transmitter Output Disable

t_r, t_f, R_DIFF= 54Ω, C_L= 50pF, ZT485ER. Refers to figure 4.

t_r, t_f, R_DIFF= 54Ω, C_L= 50pF, ZT490ER and ZT491ER, fig.4.

To Output HIGH, C_L= 50pF, R_L= 110Ω. Refers to figure 5.

To Output LOW, C_L= 50pF, R_L= 110Ω. Refers to figure 6.

From Output HIGH, C_L= 50pF, R_L= 110Ω. Refers to figure 5.

From Output LOW, C_L= 50pF, R_L= 110Ω. Refers to figure 6.

Receiver Timing

Receiver Propagation t_PLH

Receiver Propagation t_PHL

Differential Receiver Skew t_SK

Receiver Output Enable

C_L= 15pF, Refers to figure 9.

150

|t_PHL- t_PLH

To Output HIGH, C_L= 15pF. Refers to figure 10.

To Output LOW, C_L= 15pF. Refers to figure 11.

Receiver Output Disable

From Output HIGH, C_L= 15pF. Refers to figure 10.

From Output LOW, C_L= 15pF. Refers to figure 11.

Transceiver Throughput

Maximum Data Rate

R_L= 54Ω, C_L= 50pF, T_A= 25°C

Mbps

ESDTolerance

ESD HBM

RS485 Inputs and Outputs

±15

Specifications subject to change without notice

Zywyn

February2005

rev.1.2

1 2 345 6 7...14

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