DS36954M/NOPB

DS36954 www.ti.com SNLS077C – JULY 1998 – REVISED APRIL 2013 DS36954 Quad Differential Bus Transceiver Check for Samples: DS36954 FEATURES DESCRIPTION • • • The DS36954 is a low power, quad EIA-485 differential bus transceiver especially suited for high speed, parallel, multipoint, I/O bus applications. A compact 20-pin surface mount PLCC or SOIC package provides high transceiver integration and a very small PC board footprint. 1 2 • • • Pinout for SCSI Interface Compact 20-Pin PLCC or SOIC Package Meets EIA-485 Standard for Multipoint Bus Transmission Greater than 60 mA Source/Sink Currents Thermal Shutdown Protection Glitch-Free Driver Outputs on Power Up and Down Propagation delay skew between devices is specified to aid in parallel interface designs—limits on maximum and minimum delay times are verified. Five devices can implement a complete SCSI initiator or target interface. Three transceivers in a package are pinned out for data bus connections. The fourth transceiver, with the flexibility provided by its individual enables, can serve as a control bus transceiver. Connection Diagram Logic Diagram See Package Number FN (S-PQCC-J20) See Package Number DW (R-PDSO-G20) 1 2 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 1998–2013, Texas Instruments Incorporated DS36954 SNLS077C – JULY 1998 – REVISED APRIL 2013 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Absolute Maximum Ratings (1) (2) Supply Voltage 7V Control Input Voltage VCC + 0.5V Driver Input Voltage VCC + 0.5V −10V to +15V Driver Output Voltage/Receiver Input Voltage Receiver Output Voltage 5.5V Continuous Power Dissipation @ +25°C FN Package 1.73W DW Package 1.73W Derate FN Package 13.9 mW/°C above +25°C Derate DW Package 13.7 mW/°C above +25°C −65°C to +150°C Storage Temperature Range Lead Temperature (Soldering 4 Sec.) (1) 260°C “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be verified. They are not meant to imply that the devices should be operated at these limits. The tables of “Electrical Characteristics” specify conditions for device operation. If Military/Aerospace specified devices are required, please contact the Texas Instrument Sales Office/ Distributors for availability and specifications. (2) Recommended Operating Conditions Supply Voltage, VCC Bus Voltage Operating Free Air Temperature (TA) Electrical Characteristics Min Max Units 4.75 5.25 V −7 +12 V 0 +70 °C (1) (2) Over Supply Voltage and Operating Temperature ranges, unless otherwise specified Symbol Parameter Conditions Min Typ Max Units DRIVER CHARACTERISTICS VODL Differential Driver Output Voltage (Full IL = 60 mA Load) VCM = 0V 1.5 1.9 V VOD Differential Driver Output Voltage (Termination Load) RL = 100Ω (EIA-422) 2.0 2.25 V RL = 54Ω (EIA-485) 1.5 2.0 ΔIVODI Change in Magnitude of Driver Differential Output Voltage for Complementary Output States RL = 54 or 100Ω VOC Driver Common Mode Output Voltage RL = 54Ω (Figure 1 ) (EIA-485) ΔIVOCI Change in Magnitude of Common Mode Output Voltage (3) VOH Output Voltage High IOH = −55 mA VOL Output Voltage Low IOL = 55 mA VIH Input Voltage High VIL Input Voltage Low VCL Input Clamp Voltage (1) (2) (3) (4) 2 (3) (Figure 1 ) (EIA-422/485) (4) (Figure 1 ) (EIA-422/485) 2.7 V 0.2 V 3.0 V 0.2 V 3.2 1.4 V 1.7 2.0 ICL = −18 mA V V 0.8 V −1.5 V Current into device pins is defined as positive. Current out of device pins is defined as negative. All voltages are referenced to ground unless otherwise specified. All typicals are given for VCC = 5V and TA = 25°C. Δ IVODI and Δ IVOCI are changes in magnitude of VOD and VOC, respectively, that occur when the input changes state. In EIA Standards EIA-422 and EIA-485, VOC, which is the average of the two output voltages with respect to ground, is called output offset voltage, VOS . Submit Documentation Feedback Copyright © 1998–2013, Texas Instruments Incorporated Product Folder Links: DS36954 DS36954 www.ti.com SNLS077C – JULY 1998 – REVISED APRIL 2013 Electrical Characteristics (1)(2) (continued) Over Supply Voltage and Operating Temperature ranges, unless otherwise specified Symbol Parameter Conditions IIH Input High Current VIN = 2.4V (5) IIL Input Low Current VIN = 0.4V (5) IOSC Driver Short-Circuit Output Current (6) Min Typ Max Units 20 μA −20 μA VO = −7V (EIA-485) −130 −250 mA VO = 0V (EIA-422) −90 −150 mA VO = +12V (EIA-485) 130 250 mA −15 −28 −75 mA 20 μA 2.4 3.0 RECEIVER CHARACTERISTICS (6) IOSR Short Circuit Output Current VO = 0V IOZ TRI-STATE Output Current VO = 0.4V to 2.4V VOH Output Voltage High VID = 0.2V, IOH = 0.4 mA VOL Output Voltage Low VID = −0.2V, IOL = 4 mA 0.35 0.5 V VTH Differential Input High Threshold Voltage VO = VOH, IO = −0.4 mA (EIA-422/485) 0.03 0.2 V VTL Differential Input Low Threshold Voltage (7) VO = VOL, IO = 4.0 mA (EIA-422/485) VHST Hysteresis (8) VCM = 0V V −0.2 0 −0.03 V 35 60 mV DRIVER AND RECEIVER CHARACTERISTICS VIH Enable Input Voltage High VIL Enable Input Voltage Low VCL Enable Input Clamp Voltage IIN Line Input Current IING Line Input Current IIH (9) (9) Enable Input Current High IIL Enable Input Current Low 2.0 V 0.8 ICL = −18 mA V −1.5 V Other Input = 0V DE/RE = 0.8V DE4 = 0.8V VI = +12V 0.5 1.0 mA VI = −7V −0.45 −0.8 mA Other Input = 0V DE/RE and DE4 = 2V VCC = 3.0V TA = +25°C VI = +12V 1.0 mA −0.8 mA VIN = 2.4V DE/RE VCC = 3.0V 1 40 μA VCC = 4.75V 1 VI = −7V μA VCC = 5.25V 1 40 μA VIN = 2.4V DE4 or RE4 VCC = 3.0V 1 20 μA VCC = 5.25V 1 20 μA VIN = 0.8V DE/RE VCC = 3.0V −6 −40 μA VCC = 4.75V −12 VCC = 5.25V −14 −40 μA VCC = 3.0V −3 −20 μA −7 VIN = 0.8V DE4 or RE4 μA −20 μA ICCD Supply Current (10) No Load, DE/RE and DE4 = 2.0V 75 90 mA ICCR Supply Current (10) No Load, DE/RE and RE4 = 0.8V 50 70 mA (5) (6) (7) (8) (9) (10) VCC = 5.25V IIH and IIL include driver input current and receiver TRI-STATE leakage current on DR(1–3). Short one output at a time. Threshold parameter limits specified as an algebraic value rather than by magnitude. Hysteresis defined as VHST = V TH − VTL. IIN includes the receiver input current and driver TRI-STATE leakage current. Total package supply current. Submit Documentation Feedback Copyright © 1998–2013, Texas Instruments Incorporated Product Folder Links: DS36954 3 DS36954 SNLS077C – JULY 1998 – REVISED APRIL 2013 www.ti.com Switching Characteristics Over Supply Voltage and Operating Temperature ranges, unless otherwise specified. Symbol Parameter Conditions Min Typ Max Units DRIVER SINGLE-ENDED CHARACTERISTICS tPZH Output Enable Time to High Level (Figure 6 ) 35 40 ns tPZL Output Enable Time to Low Level RL = 110Ω (Figure 8 ) 25 40 ns tPHZ Output Disable Time to High Level (Figure 6 ) 15 25 ns tPLZ Output Disable Time to Low Level (Figure 8 ) 35 40 ns 13 16 ns 9 15 19 ns 9 12 19 ns 3 6 ns 9 14 19 ns 9 13 19 ns 1 3 ns 15 22 ns 20 30 ns DRIVER DIFFERENTIAL CHARACTERISTICS tr, tf Rise and Fall Time tPLHD Differential Propagation tPHLD Delays tSKD |tPLHD − tPHLD| Diff. Skew (2) RL = 54Ω CL = 50 pF CD = 15 pF (Figure 3 Figure 4 (1) ) RECEIVER CHARACTERISTICS tPLHD Differential Propagation Delays tPHLD CL = 15 pF VCM = 2.0V (Figure 10 ) tSKD |tPLHD − tPHLD| Diff. Receiver Skew tPZH Output Enable Time to High Level tPZL Output Enable Time to Low Level tPHZ Output Disable Time from High Level 20 30 ns tPLZ Output Disable Time from Low Level 17 25 ns (1) (2) 4 CL = 15 pF (Figure 15 ) Propagation Delay Timing for Calculations of Driver Differential Propagation Delays Differential propagation delays are calculated from single-ended propagation delays measured from driver input to the 20% and 80% levels on the driver outputs (Figure 16) . Submit Documentation Feedback Copyright © 1998–2013, Texas Instruments Incorporated Product Folder Links: DS36954 DS36954 www.ti.com SNLS077C – JULY 1998 – REVISED APRIL 2013 PARAMETER MEASUREMENT INFORMATION Figure 1. Driver VOD and VOC (3) Figure 2. Receiver VOH and VOL (2) (1) (1) The input pulse is supplied by a generator having the following characteristics: f = 1.0 MHz, 50% duty cycle, trand tf < 6.0 ns, ZO = 50Ω (2) CL includes probe and stray capacitance. Figure 3. Driver Differential Propagation Delay Load Circuit (1) (1) Differential propagation delays are calculated from single-ended propagation delays measured from driver input to the 20% and 80% levels on the driver outputs (Figure 16). Figure 4. Driver Differential Propagation Delays and Transition Times (3) CL includes probe and stray capacitance. Submit Documentation Feedback Copyright © 1998–2013, Texas Instruments Incorporated Product Folder Links: DS36954 5 DS36954 SNLS077C – JULY 1998 – REVISED APRIL 2013 www.ti.com (2) (1) S1 to OA for DI = 3V S1 to OB for DI = 0V (1) The input pulse is supplied by a generator having the following characteristics: f = 1.0 MHz, 50% duty cycle, trand tf < 6.0 ns, ZO = 50Ω. (2) CL includes probe and stray capacitance. Figure 5. Figure 6. Driver Enable and Disable Timing (tPZH, t PHZ) (1) (2) S1 to OA for DI = 0V S1 to OB for DI = 3V (1) The input pulse is supplied by a generator having the following characteristics: f = 1.0 MHz, 50% duty cycle, trand tf < 6.0 ns, ZO = 50Ω. (2) CL includes probe and stray capacitance. Figure 7. 6 Submit Documentation Feedback Copyright © 1998–2013, Texas Instruments Incorporated Product Folder Links: DS36954 DS36954 www.ti.com SNLS077C – JULY 1998 – REVISED APRIL 2013 Figure 8. Driver Enable and Disable Timing (tPZL, t PLZ) (1) (2) (1) The input pulse is supplied by a generator having the following characteristics: f = 1.0 MHz, 50% duty cycle, trand tf < 6.0 ns, ZO = 50Ω. (2) CL includes probe and stray capacitance. Figure 9. Figure 10. Receiver Differential Propagation Delay Timing (1) (4) (3) (2) (1) The input pulse is supplied by a generator having the following characteristics: f = 1.0 MHz, 50% duty cycle, trand tf < 6.0 ns, ZO = 50Ω. (2) CL includes probe and stray capacitance. (3) Diodes are 1N916 or equivalent. (4) On transceivers 1–3 the driver is loaded with receiver input conditions when DE/RE is high. Do not exceed the package power dissipation limit when testing. Figure 11. Submit Documentation Feedback Copyright © 1998–2013, Texas Instruments Incorporated Product Folder Links: DS36954 7 DS36954 SNLS077C – JULY 1998 – REVISED APRIL 2013 www.ti.com S1 1.5V S2 Open S3 Closed Figure 12. S1 −1.5V S2 Closed C3 Open Figure 13. S1 1.5V S2 Closed C3 Closed Figure 14. S1 −1.5V S2 Closed C3 Closed Figure 15. Receiver Enable and Disable Timing 8 Submit Documentation Feedback Copyright © 1998–2013, Texas Instruments Incorporated Product Folder Links: DS36954 DS36954 www.ti.com SNLS077C – JULY 1998 – REVISED APRIL 2013 Tra, Trb, Tfa and Tfb are propagation delay measurements to the 20% and 80% levels. TCP = Crossing Point Figure 16. Propagation Delay Timing for Calculations of Driver Differential Propagation Delays Submit Documentation Feedback Copyright © 1998–2013, Texas Instruments Incorporated Product Folder Links: DS36954 9 DS36954 SNLS077C – JULY 1998 – REVISED APRIL 2013 www.ti.com REVISION HISTORY Changes from Revision B (April 2013) to Revision C • 10 Page Changed layout of National Data Sheet to TI format ............................................................................................................ 9 Submit Documentation Feedback Copyright © 1998–2013, Texas Instruments Incorporated Product Folder Links: DS36954 PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) (4/5) (6) DS36954M/NOPB ACTIVE SOIC DW 20 36 RoHS & Green SN Level-3-260C-168 HR 0 to 70 DS36954 M DS36954MX/NOPB ACTIVE SOIC DW 20 1000 RoHS & Green SN Level-3-260C-168 HR 0 to 70 DS36954 M (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of