Details, datasheet, quote on part number: SP483E
PartSP483E
CategoryInterface and Interconnect => RS-485
Descriptionno of Tx/rx = 1Tx/1Rx ;; Duplex = Half ;; VCC (V) = 5 ;; Typ. Icc Current (mA) = 0.9 ;; Data Rate (kbps) = 10,000 ;; Typ. Shut Down Icc (µA) = 1 ;; No. Of Rx/tx on Bus = 32 ;; RX Failsafe With Inputs Open = • ;; Features = › Low Power Shutdown › Output Driver Short Circuit Protection ;; Op. Range (°C) = -40 to 85 0 to 70 ;; Package = 8 Pin Pdip 8 Pin Nsoic ;; Esd = 15KV
CompanySipex Corporation
DatasheetDownload SP483E datasheet
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Features, Applications

+5V Only Low Power BiCMOS Driver/Receiver Enable for Multi-Drop configurations Low Power Shutdown Mode (SP481E) Enhanced ESD Specifications: +15KV Human Body Model +15KV IEC1000-4-2 Air Discharge +8KV IEC1000-4-2 Contact Discharge

DESCRIPTION The SP481E and the SP485E are a family of half-duplex transceivers that meet the specifications of RS-485 and RS-422 serial protocols with enhanced ESD performance. The ESD tolerance has been improved on these devices to over +15KV for both Human Body Model and IEC1000-4-2 Air Discharge Method. These devices are pin-to-pin compatible with Sipex's SP481 and SP485 devices as well as popular industry standards. As with the original versions, the SP481E and the SP485E feature Sipex's BiCMOS design allowing low power operation without sacrificing performance. The SP481E and SP485E meet the requirements of the RS-485 and RS-422 protocols to 10Mbps under load. The SP481E is equipped with a low power Shutdown mode.

These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability. VCC............................................................................................................+7V Input Voltages to (VCC+0.5V) Receivers................................................................. 15V Output Voltages to (VCC+0.5V) Drivers...................................................................... to (VCC+0.5V) Storage to +150C Power Dissipation per Package 8-pin NSOIC (derate 6.60mW/oC above +70oC)...........................550mW 8-pin PDIP (derate 11.8mW/oC above +70oC)............................1000mW

SPECIFICATIONS

PARAMETERS SP481E/SP485E DRIVER DC Characteristics Differential Output Voltage Differential Output Voltage Differential Output Voltage Change in Magnitude of Driver Differential Output Voltage for Complimentary States Driver Common-Mode Output Voltage Input High Voltage Input Low Voltage Input Current Driver Short-Circuit Current VOUT = HIGH VOUT = LOW SP481E/SP485E DRIVER AC Characteristics Maximum Data Rate Driver Input to Output Driver Input to Output (SP485EMN ONLY) Driver Input to Output Driver Input to Output (SP485EMN ONLY) Driver Skew Driver Rise or Fall Time Driver Enable to Output High closed Driver Enable to Output Low closed Driver Disable Time from Low closed Driver Disable Time from High closed

Unloaded; = ; see Figure 1 with load; 50; (RS-422); see Figure 1 with load; 27; (RS-485);see Figure 1

= 5V; RDIFF = 100pF tPLH; RDIFF = 100pF; see Figures 3 and 5 tPLH; RDIFF = 54, CLI = 100pF; See Figures 3 and 5 tPHL; RDIFF = 100pF; see Figures 3 and 5 tPHL; RDIFF = 100pF; see Figures 3 and 5 see Figures 3 and 5, tSKEW = | tDPLH - tDPHL | From to 90%; RDIFF = 100pF; see Figures = 100pF; see Figures = 100pF; see Figures = 100pF; see Figures = 100pF; see Figures 6; S2

PARAMETERS MIN. SP481E/SP485E RECEIVER DC Characteristics Differential Input Threshold -0.2 Differential Input Threshold -0.4 (SP485EMN ONLY) Input Hysteresis Output Voltage High 3.5 Output Voltage Low Three-State (High Impedance) Output Current Input Resistance 12 Input Current (A, B); VIN = 12V Input Current (A, B); VIN = -7V Short-Circuit Current 7 SP481E/SP485E RECEIVER AC Characteristics Maximum Data Rate 10 Receiver Input to Output 20 Receiver Input to Output Diff. Receiver Skew ItPLH-tPHLI Receiver Enable to Output Low Receiver Enable to Output High Receiver Disable from Low Receiver Disable from High SP481E Shutdown Timing Time to Shutdown 50 Driver Enable from Shutdown to Output High Driver Enable from Shutdown to Output Low Receiver Enable from Shutdown to Output High Receiver Enable from Shutdown to Output Low POWER REQUIREMENTS Supply Voltage +4.75 Supply Current SP481E/485E No Load SP481E Shutdown Mode ENVIRONMENTAL AND MECHANICAL Operating Temperature Commercial (_C_) 0 Industrial (_E_) -40 (_M_) -40 Storage Temperature -65 Package Plastic DIP (_P) NSOIC (_N)

-7V VCM +12V -7V VCM +12V VCM = -4mA, VID = +4mA, VID 5V -7V VCM = 0V, VCC or 5.25V, VIN = 0V, VCC or 5.25V, VIN 0V VO VCC = 0V tPLH; RDIFF = 100pF; Figures & 7 tPHL; RDIFF = 100pF; Figures & 7 RDIFF = 100pF; Figures & 7 CRL = 15pF; Figures 8; S1 closed CRL = 15pF; Figures 8; S2 closed CRL = 15pF; Figures 8; S1 closed CRL = 15pF; Figures 8; S2 closed

= 100pF; See Figures 6; S2 closed = 100pF; See Figures 6; S1 closed = 15pF; See Figures 8; S2 closed = 15pF; See Figures 8; S1 closed


 

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