Details, datasheet, quote on part number: SP483ECP
PartSP483ECP
Category
DescriptionEnhanced Low Emi Half-duplex RS-485 Transceiver
CompanySipex Corporation
DatasheetDownload SP483ECP datasheet
Cross ref.Similar parts: DS14185, DS1487, DS16F95A, DS16F95QML, DS36276, DS36277, DS3695, DS3695A, DS3695AT, DS3695T
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Features, Applications

s +5V Only s Low Power BiCMOS s Driver/Receiver Enable for Multi-Drop configurations s Enhanced ESD Specifications: +15KV Human Body Model +15KV IEC1000-4-2 Air Discharge +8KV IEC1000-4-2 Contact Discharge s Low EMI Transceiver limited to 250kbps

DESCRIPTION The is a half-duplex transceiver that meets the specifications of RS-485 and RS-422 serial protocols with enhanced ESD performance. The ESD tolerance has been improved on this device to over 15kV for both Human Body Model and IEC1000-4-2 Air Discharge Method. This device is pin-to-pin compatible with Sipex's SP483 device as well as popular industry standards. As with the original version, the SP483E features Sipex's BiCMOS design allowing low power operation without sacrificing performance. The SP483E meet the requirements of the RS-485 and RS-422 protocols to 250kbps under load. The SP483E is internally slew rate limited to reduce EMI and can meet the requirements of RS-485 and to 250kbps. The SP483E is also 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...........................................................................500mW

SPECIFICATIONS
PARAMETERS SP483E DRIVER DC Characteristics Differential Output Voltage Differential Output Voltage

Differential Output Voltage 1.5 Change in Magnitude of Driver Differential Output Voltage for Complimentary States Driver Common-Mode Output Voltage Input High Voltage 2.0 Input Low Voltage Input Current Driver Input Control Lines Driver Short-Circuit Current VOUT = HIGH VOUT = LOW SP483E DRIVER AC Characteristics Maximum Data Rate 250 Driver Input to Output Driver Input to Output Driver Skew Driver Rise or Fall Time Driver Enable to Output High Driver Enable to Output Low Driver Disable Time from Low Driver Disable Time from High SP481E/SP485E RECEIVER DC Characteristics Differential Input Threshold Input Hysteresis Output Voltage High Output Voltage Low Three-State (High Impedance) Output Current Input Resistance Input Current (A, B); VIN = 12V Input Current (A, B); VIN = -7V Short-Circuit Current

Unloaded; = ; see Figure 1 with load; 50; (RS-422); see Figure 1 with load; 27; (RS-485); see Figure = 50; see Figure = 50; see Figure 1 Applies to DE, DI, RE Applies to DE, DI, RE Applies to DE, DI, RE DI DE, = 5V; RDIFF = 100pF tPLH; 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 3 and 6

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

PARAMETERS SP483E RECEIVER AC Characteristics Maximum Data Rate Receiver Input to Output 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 SP483E Shutdown Timing Time to Shutdown 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 Supply Current SP483E No Load SP483E Shutdown Mode ENVIRONMENTAL AND MECHANICAL Operating Temperature Commercial (_C_) Industrial (_E_) Storage Temperature Package Plastic DIP (_P) NSOIC (_N)

= 0V tPLH; RDIFF = 100pF; Figures & 7 tPHL; RDIFF = 100pF; Figures & 7 RDIFF = 100pF;

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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