Details, datasheet, quote on part number: SP491
PartSP491
CategoryInterface and Interconnect => RS-485
Descriptionno of Tx/rx = 1Tx/1Rx ;; Duplex = Full ;; VCC (V) = 5 ;; Typ. Icc Current (mA) = 0.9 ;; Data Rate (kbps) = 5,000 ;; Typ. Shut Down Icc (µA) = N/a ;; No. Of Rx/tx on Bus = 32 ;; RX Failsafe With Inputs Open = • ;; Features = › Output Driver Short Circuit Protection ;; Op. Range (°C) = -40 to 85 0 to 70 ;; Package = 8 Pin Pdip 8 Pin Nsoic ;; Esd = 2KV
CompanySipex Corporation
DatasheetDownload SP491 datasheet
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Features, Applications

+5V Only Low Power BiCMOS Driver/Receiver Enable (SP491) RS-485 and RS-422 Drivers/Receivers Pin Compatible with LTC490 and SN75179 (SP490) Pin Compatible with LTC491 and SN75180 (SP491)

DESCRIPTION... The is a low power differential line driver/receiver meeting RS-485 and RS-422 standards to 5Mbps. The SP491 is identical to the SP490 with the addition of driver and receiver tri-state enable lines. Both products feature 200mV receiver input sensitivity, over wide common mode range. The SP490 is available in 8-pin plastic DIP and 8-pin NSOIC packages for operation over the commercial and industrial temperature ranges. The SP491 is available in 14-pin DIP and 14-pin NSOIC packages for operation over the commercial and industrial temperature ranges.

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 (VCC+0.5V) Receivers..................................................................14V Output Voltages to (VCC+0.5V) Storage to +150 Power Dissipation.....................................................................1000mW

SPECIFICATIONS

PARAMETERS SP490 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 SP490 DRIVER AC Characteristics Maximum Data Rate Driver Input to Output Driver Input to Output Driver Skew Driver Rise or Fall Time

Unloaded; = ; see figure 1 With Load; 50; (RS422); see figure 1 With Load; 27; (RS485); see figure = 50; see figure = 50; see figure 1 Applies to D Applies to D Applies VO +12V

tPLH; RDIFF = 100pF; see figures 3 and 6 tPHL; RDIFF = 100pF; see figures 3 and 6 see figures 3 and 6, tSKEW = | tDPLH - tDPHL | From to 90%; RDIFF = 100pF; see figures 3 and 6

SP490 RECEIVER DC Characteristics Differential Input Threshold Input Hysteresis Output Voltage High Output Voltage Low Input Resistance Input Current (A, B); VIN = 12V Input Current (A, B); VIN = -7V Short-Circuit Current

PARAMETERS SP490 RECEIVER AC Characteristics Maximum Data Rate Receiver Input to Output Receiver Input to Output Diff. Receiver Skew ItPLH-tPHLI POWER REQUIREMENTS Supply Voltage Supply Current ENVIRONMENTAL AND MECHANICAL Operating Temperature Commercial (_C_) Industrial (_E_) Storage Temperature Package Plastic DIP (_S_) NSOIC (_N)

Figure 2. Receiver Timing Test Load Circuit
Figure 4. Driver Timing Test Load #2 Circuit

 

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SP491CN no of Tx/rx = 1Tx/1Rx ;; Duplex = Full ;; VCC (V) = 5 ;; Typ. Icc Current (mA) = 0.9 ;; Data Rate (kbps) = 5,000 ;; Typ. Shut Down Icc (µA) = N/a ;; No. Of Rx/tx on Bus = 32 ;; RX Failsafe With Inputs
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SP495 no of Tx/rx = 4Tx/4Rx ;; Duplex = Half ;; VCC (V) = +5 ;; Typ. Icc Current (mA) = 2 ;; Data Rate (kbps) = 10,000 ;; Typ. Shut Down Icc (µA) = N/a ;; No. Of Rx/tx on Bus = 32 ;; RX Failsafe With Inputs
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SP503 No. Of TX = 7 ;; No. Of RX = 7 ;; Data Rate (Mbps) = 5 ;; Supply Voltage (V) = 5 ;; Typ. Icc Current (mA) = 20 (No Mode) ;; Int. Chrg. Pump = Yes ;; Supported Protocols = RS232, RS422A RS485, RS449 V.11,
SP504 No. Of TX = 7 ;; No. Of RX = 7 ;; Data Rate (Mbps) = 10 ;; Supply Voltage (V) = 5 ;; Typ. Icc Current (mA) = 140(V.28) ;; Int. Chrg. Pump = Yes ;; Supported Protocols = RS232E, RS422A, RS449, RS485 EIA530,
SP504M Wan Multi-mode Serial Transceiver
SP504MCF No. Of TX = 7 ;; No. Of RX = 7 ;; Data Rate (Mbps) = 10 ;; Supply Voltage (V) = 5 ;; Typ. Icc Current (mA) = 140(V.28) ;; Int. Chrg. Pump = Yes ;; Supported Protocols = RS232E, RS422A, RS449, RS485 EIA530,
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SP505ACF No. Of TX = 7 ;; No. Of RX = 7 ;; Data Rate (Mbps) = 10 ;; Supply Voltage (V) = 5 ;; Typ. Icc Current (mA) = 60(V.28) ;; Int. Chrg. Pump = Yes ;; Supported Protocols = RS232/RS442, RS485, RS449 EIA530,
SP505B Wan Multi-mode Serial Transceiver
SP505BCF No. Of TX = 7 ;; No. Of RX = 7 ;; Data Rate (Mbps) = 10 ;; Supply Voltage (V) = 5 ;; Typ. Icc Current (mA) = 60(V.28) ;; Int. Chrg. Pump = Yes ;; Supported Protocols = RS232/RS442, RS485, RS449 EIA530,
SP506 No. Of TX = 7 ;; No. Of RX = 7 ;; Data Rate (Mbps) = 16 ;; Supply Voltage (V) = 5 ;; Typ. Icc Current (mA) = 65(V.28) ;; Int. Chrg. Pump = Yes ;; Supported Protocols = RS232/RS422, RS485, RS449 EIA530,
SP507 No. Of TX = 7 ;; No. Of RX = 7 ;; Data Rate (Mbps) = 20 ;; Supply Voltage (V) = 5 ;; Typ. Icc Current (mA) = 65(V.28) ;; Int. Chrg. Pump = Yes ;; Supported Protocols = RS232/RS422, RS449 EIA530, EIA530A
SP507CB +5V Single Chip Wan Multi-mode Serial Transceiver
SP507CF No. Of TX = 7 ;; No. Of RX = 7 ;; Data Rate (Mbps) = 20 ;; Supply Voltage (V) = 5 ;; Typ. Icc Current (mA) = 65(V.28) ;; Int. Chrg. Pump = Yes ;; Supported Protocols = RS232/RS422, RS449 EIA530, EIA530A
SP508 No. Of TX = 8 ;; No. Of RX = 8 ;; Data Rate (Mbps) = 20 ;; Supply Voltage (V) = 5 ;; Typ. Icc Current (mA) = 95(V.28) ;; Int. Chrg. Pump = Yes ;; Supported Protocols = RS232, RS449 EIA530, EIA530A V.10,
SP509 No. Of TX = 8 ;; No. Of RX = 8 ;; Data Rate (Mbps) = 40 ;; Supply Voltage (V) = 5 ;; Typ. Icc Current (mA) = 95(V.28) ;; Int. Chrg. Pump = Yes ;; Supported Protocols = RS232, RS449 EIA530, EIA530A V.10,
 
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