SN74GTL2003 SCDS305 – FEBRUARY 2011 www.ti.com 8-BIT BIDIRECTIONAL LOW-VOLTAGE TRANSLATOR Check for Samples: SN74GTL2003 FEATURES APPLICATIONS • • • • • • • • QFN PACKAGE (TOP VIEW) terminal 1 index area 1 GND • • PW PACKAGE (TOP VIEW) 20 GREF • • Bidirectional or Unidirectional Applications Requiring Voltage-Level Translation From Any Voltage (1 V to 5 V) to Any Voltage (1 V to 5 V) Low Voltage Processor I2C Port Translation to 3.3-V and/or 5-V I2C Bus Signal Levels GTL/GTL+ Translation to LVTTL/TTL Signal Levels GND 1 20 GREF SREF 2 19 DREF 19 DREF S1 3 18 D1 S1 3 18 D1 S2 4 17 D2 S2 4 17 D2 S3 5 16 D3 S3 5 16 D3 S4 6 15 D4 S5 7 S4 6 14 D5 15 D4 S6 8 13 D6 SREF 2 S5 7 14 D5 S6 8 13 D6 S7 9 12 D7 S7 9 12 D7 S8 10 11 D8 D8 11 • Provides Bidirectional Voltage Translation With No Direction Control Required Allows Voltage Level Translation From 1 V up to 5 V Provides Direct Interface With GTL, GTL+, LVTTL/TTL, and 5-V CMOS Levels Low On-State Resistance Between Input and Output Pins (Sn/Dn) Supports Hot Insertion No Power Supply Required – Will Not Latch Up 5-V-Tolerant Inputs Low Standby Current Flow-Through Pinout for Ease of Printed Circuit Board Trace Routing ESD Performance Tested Per JESD 22 – 2000-V Human-Body Model (A114-B, Class II) – 1000-V Charged-Device Model (C101) S8 10 1 DESCRIPTION/ORDERING INFORMATION The SN74GTL2003 provides eight NMOS pass transistors (Sn and Dn) with a common gate (GREF) and a reference transistor (SREF and DREF). The low ON-state resistance of the switch allows connections to be made with minimal propagation delay. With no direction control pin required, the device allows bidirectional voltage translations any voltage (1 V to 5 V) to any voltage (1 V to 5 V). When the Sn or Dn port is LOW, the clamp is in the ON state and a low-resistance connection exists between the Sn and Dn ports. Assuming the higher voltage is on the Dn port, when the Dn port is HIGH, the voltage on the Sn port is limited to the voltage set by the reference transistor (SREF). When the Sn port is HIGH, the Dn port is pulled to VCC by the pullup resistors. All transistors in the SN74GTL2003 have the same electrical characteristics, and there is minimal deviation from one output to another in voltage or propagation delay. This offers superior matching over discrete transistor voltage-translation solutions where the fabrication of the transistors is not symmetrical. With all transistors being identical, the reference transistor (SREF/DREF) can be located on any of the other eight matched Sn/Dn transistors, allowing for easier board layout. The translator transistors with integrated ESD circuitry provides excellent ESD protection. 1 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. 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. © 2011, Texas Instruments Incorporated SN74GTL2003 SCDS305 – FEBRUARY 2011 www.ti.com ORDERING INFORMATION VQFN – RKS –40°C to 85°C (1) ORDERABLE PART NUMBER PACKAGE (1) TA TSSOP – PW TOP-SIDE MARKING Tape and reel SN74GTL2003RKSR GK2003 Tube SN74GTL2003PW GK2003 Tape and reel SN74GTL2003PWR GK2003 Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. DESCRIPTION Table 1. PIN DESCRIPTION 2 PIN NO. NAME DESCRIPTION 1 GND Ground (0 V) 2 SREF Source of reference transistor 3 – 10 Sn Ports S1–S8 11 – 18 Dn Ports D1–D8 19 DREF Drain of reference transistor 20 GREF Gate of reference transistor Submit Documentation Feedback © 2011, Texas Instruments Incorporated Product Folder Link(s): SN74GTL2003 SN74GTL2003 SCDS305 – FEBRUARY 2011 www.ti.com FUNCTION TABLES Table 2. HIGH-to-LOW Translation (Assuming Dn is at the Higher Voltage Level) (1) (1) (2) (3) (4) (5) GREF (2) DREF H H 0V H H VTT (3) H H VTT L L 0 – VTT INPUTS D8–D1 SREF OUTPUT S8–S1 TRANSISTOR X X Off H VTT (4) On L L (5) On X X Off H = HIGH voltage level, L = LOW voltage level, X = don't care. GREF should be at least 1.5 V higher than SREF for best translator operation. VTT is equal to the SREF voltage. Sn is not pulled up or pulled down. Sn follows the Dn input LOW. Table 3. LOW-to-HIGH Translation (Assuming Dn is at the Higher Voltage Level) (1) (1) (2) (3) (4) (5) GREF (2) DREF SREF INPUTS D8–D1 OUTPUT S8–S1 TRANSISTOR H H 0V X X Off VTT (3) VTT H (4) H H H H VTT L L (5) Nearly Off On L L 0 – VTT X X Off H = HIGH voltage level, L = LOW voltage level, X = don't care. GREF should be at least 1.5 V higher than SREF for best translator operation. VTT is equal to the SREF voltage. Dn is pulled up to VCC through an external resistor. Dn follows the Sn input LOW. CLAMP SCHEMATIC DREF SREF GREF D1 D8 S1 S8 SA00647 Submit Documentation Feedback © 2011, Texas Instruments Incorporated Product Folder Link(s): SN74GTL2003 3 SN74GTL2003 SCDS305 – FEBRUARY 2011 www.ti.com Absolute Maximum Ratings (1) (2) (3) over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT VSREF DC source reference voltage –0.5 7 V VDREF DC drain reference voltage –0.5 7 V VGREF DC gate reference voltage –0.5 7 V VSn DC voltage port Sn –0.5 7 V VDn DC voltage port Dn IREFK DC diode current on reference pins VI < 0 V –50 mA ISK DC diode current port Sn VI < 0V –50 mA IDK DC diode current port Dn VI < 0 V –50 mA IMAX DC clamp current per channel Channel is ON state θJA Package thermal impedance Tstg Storage temperature range (1) (2) (3) –0.5 7 ±128 –65 V mA 88 ºC/W 150 °C Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction temperatures that are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C. The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed. Recommended Operating Conditions (1) VI/O Input/output voltage (Sn, Dn) (1) MIN MAX 0 5.5 UNIT V VSREF DC source reference voltage 0 5.5 V VDREF DC drain reference voltage 0 5.5 V VGREF DC gate reference voltage 0 5.5 V IPASS Pass transistor current 64 mA TAMB Operating ambient temperature range (in free air) 85 ºC (1) 4 –40 VSREF = VDREF – 1.5 V for best results in level-shifting applications. Submit Documentation Feedback © 2011, Texas Instruments Incorporated Product Folder Link(s): SN74GTL2003 SN74GTL2003 SCDS305 – FEBRUARY 2011 www.ti.com Electrical Characteristics over recommended operating free-air temperature range, VCC = 3.3 V ± 0.3 V (unless otherwise noted) TEST CONDITIONS (1) PARAMETER MIN TYP (1) MAX UNIT 260 350 mV VOL Low-level output voltage VDD = 3 V, VSREF = 1.365 V, VSn or VDn = 0.175 V, Iclamp = 15.2 mA VIK Input clamp voltage II = –18 mA VGREF = 0 V –1.2 V IIH Gate input leakage VI = 5 V VGREF = 0 V 5 µA CI(GREF) Gate capacitance VI = 3 V or 0 V 56 pF CIO(OFF) OFF capacitance VO = 3 V or 0 V VGREF = 0 V 7.4 pF CIO(ON) ON capacitance VO = 3 V or 0 V VGREF = 3 V 18.6 pF VI = 0 V ron (2) 3.5 5 VGREF = 3 V 4.4 7 VGREF = 2.3 V IO = 64 mA 5.5 9 67 105 IO = 30 mA 9 15 7 10 IO = 15 mA 58 80 50 70 VGREF = 1.5 V ON-state resistance VGREF = 1.5 V, VI = 2.4 V VI = 1.7 V (1) (2) VGREF = 4.5 V VGREF = 4.5 V VGREF = 3 V VGREF = 2.3 V Ω All typical values are measured at Tamb = 25°C. Measured by the voltage drop between the Sn and the Dn terminals at the indicated current through the switch. On-state resistance is determined by the lowest voltage of the two (Sn or Dn) terminals. Submit Documentation Feedback 5 Submit Documentation Feedback © 2011, Texas Instruments Incorporated Product Folder Link(s): SN74GTL2003 5 SN74GTL2003 SCDS305 – FEBRUARY 2011 www.ti.com AC Characteristics for Translator-Type Applications (1) VREF = 1.365 V to 1.635 V, VDD1 = 3 V to 3.6 V, VDD2 = 2.36 V to 2.64 V, GND = 0 V, tr = tf ≤ 3 ns, Tamb = –40°C to 85°C (see Figure 5) PARAMETER tPLH (1) (2) (3) (3) Propagation delay (Sn to Dn, Dn to Sn) MIN TYP (2) MAX 0.5 1.5 5.5 UNIT ns CON(max) of 30 pF and a COFF(max) of 15 pF is specified by design. All typical values are measured at VDD1 = 3.3 V, VDD2 = 2.5 V, VREF = 1.5 V and Tamb = 25°C. Propagation delay specified by characterization. AC Waveforms Vm = 1.5 V, VIN = GND to 3 V VI Input VM VM tPHL0 tPLH0 GND VDD2 VM Low-to-High VOL VM tPHL tPLH tPHL1 VDD2 tPLH1 VM Low-to-High VOL VM Figure 1. Input (Sn) to Output (Dn) Propagation Delays VDD2 VDD2 200 150 VDD2 VDD2 150 150 DUT DREF GREF D1 . . . D8 SREF S1 . . . S8 Test Jig VREF Pulse Generator Figure 2. Load Circuit 6 Submit Documentation Feedback © 2011, Texas Instruments Incorporated Product Folder Link(s): SN74GTL2003 SN74GTL2003 SCDS305 – FEBRUARY 2011 www.ti.com AC Characteristics for Translator-Type Applications GND = 0 V, tR, CL = 50 pF, GREF = 5 V ± 0.5 V, Tamb = –40°C to 85°C PARAMETER tpd (1) Propagation delay MIN (1) MAX UNIT 250 ps This parameter is warranted but not production tested. The propagation delay is based on the RC time constant of the typical on-state resistance of the switch and a load capacitance of 50 pF, when driven by an ideal voltage source (zero output impedance). AC Waveforms 3V Input 1.5 V 1.5 V tPLH tPHL 0V VOH 1.5 V Output 1.5 V VOL Figure 3. Input (Sn) to Output (Dn) Propagation Delays From Ouput Under Test CL = 50 pF 500 S1 7V 500 Figure 4. Load Circuit Test S1 tpd Open tPLZ/tPZL 7V TPHZ/TPZH Open CL = Load Capacitance, includes jig and probe capacitance (See AC Characteristics for value) Submit Documentation Feedback © 2011, Texas Instruments Incorporated Product Folder Link(s): SN74GTL2003 7 SN74GTL2003 SCDS305 – FEBRUARY 2011 www.ti.com APPLICATION INFORMATION Bidirectional Translation For the bidirectional clamping configuration (higher voltage to lower voltage or lower voltage to higher voltage), the GREF input must be connected to DREF and both pins pulled to HIGH-side VCC through a pullup resistor (typically 200 kW). A filter capacitor on DREF is recommended. The processor output can be totem pole or open drain (pullup resistors) and the chipset output can be totem pole or open drain (pullup resistors are required to pull the Dn outputs to VCC). However, if either output is totem pole, data must be unidirectional or the outputs must be 3-statable, and the outputs must be controlled by some direction-control mechanism to prevent HIGH-to-LOW contentions in either direction. If both outputs are open drain, no direction control is needed. The opposite side of the reference transistor (SREF) is connected to the processor core power-supply voltage. When DREF is connected through a 200-kW resistor to a 3.3-V to 5.5-V VCC supply and SREF is set between 1 V to VCC 1.5 V, the output of each Sn has a maximum output voltage equal to SREF, and the output of each Dn has a maximum output voltage equal to VCC. 8 Submit Documentation Feedback © 2011, Texas Instruments Incorporated Product Folder Link(s): SN74GTL2003 SN74GTL2003 SCDS305 – FEBRUARY 2011 www.ti.com VDPU = 5 V 200K Ω VREF = 1.8V GTL2003 GREF RPU RPU RPU DREF SREF RPU S1 D1 SW CPU I/O Chipset I/O S2 D2 SW VDPU = 3.3V RPU S7 RPU D7 Chipset I/O S8 D8 GND Figure 5. Bidirectional Translation to Multiple Higher Voltage Levels (Such as an I2C or SMBus Applications) Submit Documentation Feedback © 2011, Texas Instruments Incorporated Product Folder Link(s): SN74GTL2003 9 SN74GTL2003 SCDS305 – FEBRUARY 2011 www.ti.com Unidirectional Down Translation For unidirectional clamping (higher voltage to lower voltage), the GREF input must be connected to DREF and both pins pulled to the higher-side VCC through a pullup resistor (typically 200 kW). A filter capacitor on DREF is recommended. Pullup resistors are required if the chipset I/Os are open drain. The opposite side of the reference transistor (SREF) is connected to the processor core power-supply voltage. When DREF is connected through a 200-kW resistor to a 3.3-V to 5.5-V VCC supply and SREF is set between 1 V to VCC – 1.5 V, the output of each Sn has a maximum output voltage equal to SREF. VDPU = 5 V 200K Ω GTL2003 VREF = 1.8V DREF SREF S1 GREF SW D1 CPU I/O S2 D2 Chipset I/O SW Sn Dn GND Figure 6. Unidirectional Down Translation to Protect Low-Voltage Processor Pins 10 Submit Documentation Feedback © 2011, Texas Instruments Incorporated Product Folder Link(s): SN74GTL2003 SN74GTL2003 SCDS305 – FEBRUARY 2011 www.ti.com Unidirectional Up Translation For unidirectional up translation (lower voltage to higher voltage), the reference transistor is connected the same as for a down translation. A pullup resistor is required on the higher voltage side (Dn or Sn) to get the full HIGH level, since the GTL device only passes the reference source (SREF) voltage as a HIGH when doing an up translation. The driver on the lower voltage side only needs pullup resistors if it is open drain. VDPU = 5 V 200K Ω GTL2003 VREF = 1.8V GREF RPU RPU RPU DREF SREF RPU S1 SW D1 CPU I/O Chipset I/O S2 SW Sn D2 Dn GND Figure 7. Unidirectional Up Translation to Higher-Voltage Chipsets Submit Documentation Feedback © 2011, Texas Instruments Incorporated Product Folder Link(s): SN74GTL2003 11 SN74GTL2003 SCDS305 – FEBRUARY 2011 www.ti.com Sizing Pullup Resistors The pullup resistor value should limit the current through the pass transistor when it is in the on state to about 15 mA. This ensures a pass voltage of 260 mV to 350 mV. If the current through the pass transistor is higher than 15 mA, the pass voltage also is higher in the on state. To set the current through each pass transistor at 15 mA, the pullup resistor value is calculated as: Pullup voltage (V ) - 0.35 V Resistor value (W ) = 0.015 A (1) Table 4 shows resistor values for various reference voltages and currents at 15 mA, 10 mA, and 3 mA. The resistor value shown in the +10% column, or a larger value, should be used to ensure that the pass voltage of the transistor would be 350 mV or less. The external driver must be able to sink the total current from the resistors on both sides of the GTL device at 0.175 V, although the 15 mA only applies to current flowing through the SN74GTL2003. Table 4. Pullup Resistor Values (1) (2) (3) PULLUP RESISTOR VALUE (Ω) VOLTAGE (1) (2) (3) 12 15 mA 10 mA 3 mA NOMINAL +10% NOMINAL +10% NOMINAL +10% 5.0 V 310 341 465 512 1550 1705 3.3 V 197 217 295 325 983 1082 2.5 V 143 158 215 237 717 788 1.8 V 97 106 145 160 483 532 1.5 V 77 85 115 127 383 422 1.2 V 57 63 85 94 283 312 Calculated for VOL = 0.35 V Assumes output driver VOL = 0.175 V at stated current +10% to compensate for VDD range and resistor tolerance Submit Documentation Feedback © 2011, Texas Instruments Incorporated Product Folder Link(s): SN74GTL2003 PACKAGE OPTION ADDENDUM www.ti.com 16-May-2011 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp SN74GTL2003PW ACTIVE TSSOP PW 20 70 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74GTL2003PWR ACTIVE TSSOP PW 20 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM SN74GTL2003RKSR ACTIVE VQFN RKS 20 3000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM (3) Samples (Requires Login) (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) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. 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Addendum-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant SN74GTL2003PWR TSSOP PW 20 2000 330.0 16.4 6.95 7.1 1.6 8.0 16.0 Q1 SN74GTL2003RKSR VQFN RKS 20 3000 177.8 12.4 2.73 4.85 1.03 4.0 12.0 Q1 Pack Materials-Page 1 PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN74GTL2003PWR SN74GTL2003RKSR TSSOP PW 20 2000 367.0 367.0 38.0 VQFN RKS 20 3000 202.0 201.0 28.0 Pack Materials-Page 2 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. 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