REV. 1.1.1 HIGH SPEED +3.3V QUAD RS-422 DIFFERENTIAL LINE DRIVER 1.0 PRODUCT DESCRIPTION The SP26LV431 is a low-power quad differen" />
參數(shù)資料
型號(hào)： SP26LV431CN-L
廠商： Exar Corporation
文件頁(yè)數(shù)： 21/21頁(yè)
文件大?。?/td> 0K
描述： IC DVR RS422 DIFF QUAD 16NSOIC
標(biāo)準(zhǔn)包裝： 49
類型： 驅(qū)動(dòng)器
驅(qū)動(dòng)器/接收器數(shù)： 4/0
規(guī)程： RS422
電源電壓： 3.3V
安裝類型： 表面貼裝
封裝/外殼： 16-SOIC（0.154"，3.90mm 寬）
供應(yīng)商設(shè)備封裝： 16-SOIC N
包裝： 管件
其它名稱： 1016-1040-5
SP26LV431
9
REV. 1.1.1
HIGH SPEED +3.3V QUAD RS-422 DIFFERENTIAL LINE DRIVER
1.0 PRODUCT DESCRIPTION
The SP26LV431 is a low-power quad differential line driver designed for digital data transmission meeting the
specifications of the EIA standard RS-422 serial protocol. The SP26LV431 features Exar's BiCMOS process
allowing low power operational characteristics of CMOS technology while meeting all of the demands of the
RS-422 serial protocol up to 60Mbps under load in harsh environments.
The RS-422 standard is ideal for multi-drop applications and for long-distance communication. The RS-422
protocol allows up to 10 receivers to be connected to a data bus, making it an ideal choice for multi-drop
applications. Since the cabling can be as long as 4,000 feet, RS-422 drivers are equipped with a wide common
mode output range to accommodate ground potential differences. Because the RS-422 is a differential
interface, data is virtually immune to noise in the transmission line.
The SP26LV431 accepts TTL or CMOS input levels and translates these to RS-422 output levels. The
SP26LV431 features active HIGH and active LOW driver enable controls common to all four driver channels
see Table 1. A logic HIGH on the ENABLE pin (pin 4) or a logic LOW on the ENABLE pin (pin 12) will enable
the differential driver outputs. A logic LOW on the ENABLE pin (pin 4) and a logic HIGH on the ENABLE pin
(pin 12) will force the driver outputs into high impedance (high-Z). Refer to the truth table in Table 1.
All drivers are internally protected against short circuits on their outputs. The driver outputs are short-circuit
limited to 150mA. The driver output skew times are typically 0.8ns. To minimize reflections, the multipoint bus
transmission line should be terminated at both ends in its characteristic impedance, and stub lengths off the
main line should be kept as short as possible.
FIGURE 9. TWO-WIRE BALANCED SYSTEM, RS-422
TABLE 1: TRUTH TABLE, ENABLE/DISABLE FUNCTION COMMON TO ALL FOUR RS-422 DRIVERS
INPUT
NON-INVERTING A
OUTPUT
INVERTING B OUTPUT
LOW
HIGH
don’t care
high-Z
HIGH
don’t care
LOW
HIGH
don’t care
LOW
HIGH
LOW
ENABLE
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SP26LV431CN-L/TR 功能描述:RS-422接口集成電路 HIGH SPD +3.3V QUAD RS-422 DIFFERENTIAL RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率: 工作電源電壓:5 V 電源電流:35 mA 工作溫度范圍: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-16 封裝:Tube
SP26LV431CP 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:High Speed, +3.3V Quad RS-422 Differential Line Driver
SP26LV431CP-L 功能描述:RS-422接口集成電路 HIGH SPD +3.3V QUAD RS-422 DIFFERENTIAL RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率: 工作電源電壓:5 V 電源電流:35 mA 工作溫度范圍: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-16 封裝:Tube
SP26LV431EN-L 功能描述:RS-422接口集成電路 Hi Spd 3.3V Quad RS422 Diff Line Drvr RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率: 工作電源電壓:5 V 電源電流:35 mA 工作溫度范圍: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-16 封裝:Tube
SP26LV431EN-L/TR 功能描述:RS-422接口集成電路 Hi Spd 3.3V Quad RS422 Diff Line Drvr RoHS:否 制造商:Texas Instruments 數(shù)據(jù)速率: 工作電源電壓:5 V 電源電流:35 mA 工作溫度范圍: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-16 封裝:Tube
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