© 2004 Fairchild Semiconductor Corporation DS500882June 2004Revised October 2004FXLH42245 Low Voltage Dual Supply 8-Bit Signal Translator with Configurable Voltage Supplies and Bushold Data Inputs and 3-STATE Outputs and 26Ω Series Resistors in the B Port OutputsFXLH42245Low Voltage Dual Supply 8-Bit Signal Translator with Configurable Voltage Supplies andBushold Data Inputs and 3-STATE Outputs and 26Ω Series Resistors in the B Port OutputsGeneral DescriptionThe FXLH42245 is a configurable dual-voltage-supply translator designed for bi-directional voltage translation of signals between two voltage levels. The device allows translation between voltages as high as 3.6V to as low as 1.1V. The A Port tracks the V CCA level, and the B Port tracks the V CCB level. Both ports are designed to accept supply voltage levels from 1.1V to 3.6V. This allows for bi-directional voltage translation over a variety of voltage lev-els: 1.2V, 1.5V, 1.8V, 2.5V, and 3.3V.The device remains in 3-STATE until both V CC s reach active levels allowing either V CC to be powered-up first.The device also contains power down control circuits that place the device in 3-STATE if either V CC is removed.The Transmit/Receive (T/R) input determines the direction of data flow through the device. The OE input, when HIGH,disables both the A and B Ports by placing them in a 3-STATE condition. The FXLH42245 is designed so that the control pins (T/R and OE) are supplied by V CCA .Featuress Bi-directional interface between any 2 levels from 1.1V to 3.6V s Fully configurable, inputs track V CC levels Non-preferential power-up sequencing; either V CC may be powered-up first s Outputs remain in 3-STATE until active V CC level is reached s Outputs switch to 3-STATE if either V CC is at GND s Bushold on data inputs eliminates the need for external pull-up/pull-down resistors s 26Ω output series resistors on the B Port to reduce line noise s Power-off protections Control inputs (T/R, OE) levels are referenced to V CCA voltage s Packaged in 24-terminal MLP s ESD protection exceeds:• 4kV HBM ESD(per JESD22-A114 & Mil Std 883e 3015.7)• 8kV HBM I/O to GND ESD(per JESD22-A114 & Mil Std 883e 3015.7)• 1kV CDM ESD (per ESD STM 5.3)• 200V MM ESD (per JESD22-A115 & ESD STM5.2)Ordering Code:Order Number Package NumberPackage DescriptionFXLH42245MPXMLP024B24-Terminal Molded Leadless Package (MLP), JEDEC MO-220, 3.5mm x 4.5mm 2F X L H 42245Pin DescriptionsTruth TableH = HIGH Voltage Level L = LOW Voltage Level X = Don’t CareConnection DiagramTerminal Assignments for DQFN(Top Through View)Pin AssignmentsPower-Up/Power-Down SequencingFXL translators offer an advantage in that either V CC may be powered up first. This benefit derives from the chip design. When either V CC is at 0 volts, outputs are in a HIGH-Impedance state. The control inputs (T/R and OE)are designed to track the V CCA supply. A pull-up resistor tying OE to V CCA should be used to ensure that bus con-tention, excessive currents, or oscillations do not occur during power-up/power-down. The size of the pull-up resis-tor is based upon the current-sinking capability of the OE driver.The recommended power-up sequence is the following:1.Apply power to either V CC .2.Apply power to the T/R input (Logic HIGH for A-to-Boperation; Logic LOW for B-to-A operation) and to the respective data inputs (A Port or B Port). This may occur at the same time as Step 1.3.Apply power to the other V CC .4.Drive the OE input LOW to enable the device.The recommended power-down sequence is the following:1.Drive OE input HIGH to disable the device.2.Remove power from either V CC .3.Remove power from the other V CC .Pin Names DescriptionOE Output Enable Input T/R Transmit/Receive Input A 0 - A 7Side A Input or 3-STATE Output B 0 - B 7Side B Input or 3-STATE Output V CCA Side A Power Supply V CCB Side B Power Supply GNDGroundInputs OutputsOE T/R L L Bus B Data to Bus A L H Bus A Data to Bus B HX3-STATEPin NumberPin Name Pin NumberPin Name 1V CCA 13GND 2T/R 14B 73A 015B 64A 116B 55A 217B 46A 318B 37A 419B 28A 520B 19A 621B 010A 722OE 11GND 23V CCB 12GND24V CCBFXLH42245Absolute Maximum Ratings (Note 1)Recommended Operating Conditions (Note 3)Note 1: The “Absolute Maximum Ratings ” are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings.The “Recommended Operating Conditions ” table will define the conditions for actual device operation.Note 2: I O Absolute Maximum Rating must be observed.Note 3: All unused inputs must be held at V CCI or GND.DC Electrical CharacteristicsSupply Voltage V CCA −0.5V to +4.6V V CCB−0.5V to +4.6V DC Input Voltage (V I ) I/O Port A −0.5V to V CCA +0.5V I/O Port B−0.5V to V CCA +0.5VControl Inputs (T/R, OE)−0.5V to +4.6V Output Voltage (V O ) (Note 2)Outputs 3-STATE −0.5V to +4.6V Outputs Active (A n )−0.5V to V CCA + 0.5V Outputs Active (B n )−0.5V to V CCB + 0.5VDC Input Diode Current (I IK ) V I < 0V −50 mA DC Output Diode Current (I OK )V O < 0V −50 mA V O > V CC+50 mADC Output Source/Sink Current (I OH /I OL )−50 mA / +50 mADC V CC or Ground Current per Supply Pin (I CC )±100 mAStorage Temperature Range (T STG )−65°C to +150°CPower Supply Operating (V CCA or V CCB ) 1.1V to 3.6VInput Voltage Port A0.0V to V CCA Port B0.0V to V CCB Control Inputs (T/R, OE)0.0V to V CCAOutput Current in I OH /I OL (A Port)V CCA 3.0V to 3.6V ±24 mA 2.3V to 2.7V ±18 mA 1.65V to 1.95V ±6 mA 1.4V to 1.65V ±2 mA 1.1V to 1.4V±0.5 mAOutput Current in I OH /I OL (B Port)V CCB 3.0V to 3.6VResistor Outputs ±12 mA 2.3V to 2.7V Resistor Outputs ±8 mA 1.65V to 1.95V Resistor Outputs ±3 mA 1.4V to 1.65V Resistor Outputs ±1 mA 1.1V to 1.4VResistor Outputs±0.25 mA Free Air Operating Temperature (T A )−40°C to +85°CMinimum Input Edge Rate (∆V/∆t)V CCA/B = 1.1V to 3.6V10 ns/VSymbol ParameterConditionsV CCI V CCO Min TypMaxUnits(V)(V)V IH High Level Input VoltageData Inputs A n , B n2.7 -3.6 1.1 - 3.6 2.0V(Note 4)2.3 - 2.7 1.61.65 - 2.30.65 x V CCI1.4 - 1.650.65 x V CCI 1.1 - 1.40.9 x V CCIControl Pins/OE, T/R 2.7 - 3.6 1.1 - 3.6 2.0(Referenced to V CCA )2.3 - 2.7 1.61.65 - 2.30.65 x V CCA1.4 - 1.650.65 x V CCA 1.1 - 1.40.9 x V CCA 4F X L H 42245DC Electrical Characteristics (Continued)Symbol ParameterConditionsV CCI V CCO MinTypMax Units(V)(V)V IL Low Level Input VoltageData Inputs A n , B n2.7 -3.6 1.1 - 3.60.8V (Note 4)2.3 - 2.70.71.65 - 2.30.35 x V CCI 1.4 - 1.650.35 x V CCI 1.1 - 1.40.1 x V CCIControl Pins OE, T/R 2.7 - 3.6 1.1 - 3.60.8(Referenced to V CCA )2.3 - 2.70.71.65 - 2.30.35 x V CCA 1.4 - 1.650.35 x V CCA 1.1 - 1.40.1 x V CCAV OH High Level Output Voltage I OH = −100 µA 1.1 - 3.6 1.1 - 3.6V CC0 - 0.2V(Note 5)B PortI OH = −6 mA 2.7 2.7 2.2I OH = −8 mA 3.0 3.0 2.4I OH = −12 mA 3.0 3.0 2.2I OH = −4 mA 2.3 2.3 2.0I OH = −6 mA 2.3 2.3 1.8I OH = −8 mA 2.3 2.3 1.7I OH = −3 mA 1.65 1.65 1.25I OH = −1 mA 1.4 1.4 1.05I OH = −0.25 mA1.1 1.10.75 x V CC0V OH High Level Output Voltage I OH = −100 µA 1.1 - 3.6 1.1 - 3.6V CC0 - 0.2V (Note 5)A PortI OH = −12 mA 2.7 2.7 2.2I OH = −18 mA 3.0 3.0 2.4I OH = −24 mA 3.0 3.0 2.2I OH = −6 mA 2.3 2.3 2.0I OH = −12 mA 2.3 2.3 1.8I OH = −18 mA 2.3 2.3 1.7I OH = −6 mA 1.65 1.65 1.25I OH = −2 mA 1.4 1.4 1.05I OH = −0.5 mA1.1 1.10.75 x V CC0V OL Low Level Output Voltage I OL = 100µA 1.1 - 3.6 1.1- 3.60.2V (Note 5)B PortI OL = 6 mA 2.7 2.70.4I OL = 8 mA 3.0 3.00.55I OL = 12 mA 3.0 3.00.8I OL = 6 mA 2.3 2.30.4I OL = 8 mA 2.3 2.30.6I OL = 3 mA 1.65 1.650.3I OL = 1 mA 1.4 1.40.35I OL = 0.25 mA1.1 1.10.3 x V CC0V OL Low Level Output Voltage I OL = 100µA 1.1 - 3.6 1.1- 3.60.2V (Note 5)A PortI OL = 12 mA 2.7 2.70.4I OL = 18 mA 3.0 3.00.4I OL = 24 mA 3.0 3.00.55I OL = 12 mA 2.3 2.30.4I OL = 18 mA 2.3 2.30.6I OL = 6 mA 1.65 1.650.3I OL = 2 mA 1.4 1.40.35I OL = 0.5 mA1.1 1.10.3 x V CC0I IInput Leakage Current Control Pins V I = V CCA or GND1.1 - 3.63.6±1.0µAFXLH42245DC Electrical Characteristics (Continued)Note 4: V CCI = the V CC associated with the data input under test.Note 5: V CCO = the V CC associated with the output under test.Note 6: An external driver must source at least the specified current to switch LOW-to-HIGH.Note 7: An external driver must sink at least the specified current to switch HIGH-to-LOW.Note 8: Don ’t Care = Any valid logic level.Note 9: Reflects current per supply, V CCA or V CCB .Symbol ParameterConditionsV CCI V CCO Min Typ Max Units(V)(V)I I(HOLD)Bushold InputV IN = 0.8 3.0 3.075.0µAMinimum Drive CurrentV IN = 2.0 3.0 3.0−75.0V IN = 0.7 2.3 2.345.0V IN = 1.6 2.3 2.3−45.0V IN = 0.57 1.65 1.6525.0V IN = 1.07 1.65 1.65−25.0V IN = 0.49 1.4 1.411.0V IN = 0.91 1.4 1.4−11.0V IN = 0.11 1.1 1.1 4.0V IN = 0.991.1 1.1−4.0I I(OD)Bushold Input Over-drive (Note 6) 3.6 3.6450µA(Note 6)Current-to-Change State(Note 7) 3.6 3.6−450(Note 7)(Note 6) 2.7 2.7300(Note 7) 2.7 2.7−300(Note 6) 1.95 1.95200(Note 7) 1.95 1.95−200(Note 6) 1.6 1.6120(Note 7) 1.6 1.6−120(Note 6) 1.4 1.480.0(Note 7)1.4 1.4−80.0I OFF Power Off Leakage CurrentA n , V I or V O = 0V to 3.6V 0 3.6±10.0µAB n , V I or V O = 0V to 3.6V3.60±10.0I OZ 3-STATE Output Leakage A n , B n OE = V IH3.6 3.6±10.0µA (Note 8)V O , V CC or GND B n , OE = Don ’t Care 0 3.6+10.0V I = V IH or V ILA n , OE = Don ’t Care 3.60+10.0I CCA/B Quiescent Supply Current V I = V CCI or GND; I O = 0 1.1 - 3.6 1.1 - 3.620.0µA (Note 9)I CCZ Quiescent Supply Current V I = V CCI or GND; I O = 0 1.1 - 3.61.1 - 3.620.0µA (Note 9)I CCA Quiescent Supply Current V I = V CCA or GND; I O = 00 1.1 - 3.6−10.0µA V I = V CCA or GND; I O = 0 1.1 - 3.6010.0I CCB Quiescent Supply Current V I = V CCB or GND; I O = 0 1.1 - 3.60−10.0µA V I = V CCB or GND; I O = 00 1.1 - 3.610.0∆I CCA/BIncrease in I CC per Input;V IH = 3.03.63.6500µAOther Inputs at V CC or GND 6F X L H 42245AC Electrical Characteristics V CCA = 3.0V to 3.6VAC Electrical Characteristics V CCA = 2.3V to 2.7VAC Electrical Characteristics V CCA = 1.65V to 1.95VAC Electrical Characteristics V CCA = 1.4V to 1.6VSymbolParameterT A = −40°C to +85°CUnitsV CCB = 3.0V to 3.6V V CCB = 2.3V to 2.7V V CCB = 1.65V to 1.95V V CCB = 1.4V to 1.6V V CCB = 1.1V to 1.3V MinMax Min Max Min Max Min Max Min Max t PLH Propagation Delay A to B 0.5 3.90.5 4.50.9 5.9 1.07.4 1.622.0ns t PHL Propagation Delay B to A 0.2 3.50.2 3.80.3 4.00.5 4.30.813.0t PZH Output Enable OE to B 0.7 4.8 1.0 5.1 1.5 6.7 1.57.1 2.018.0ns t PZL Output Enable OE to A 0.5 4.00.5 4.00.5 4.00.5 4.00.5 4.0t PHZ Output Disable OE to B 0.4 4.30.4 4.40.9 5.2 1.7 6.8 2.019.0ns t PLZOutput Disable OE to A0.23.70.23.70.23.70.23.70.23.7SymbolParameterT A = −40°C to +85°CUnitsV CCB = 3.0V to 3.6V V CCB = 2.3V to 2.7V V CCB = 1.65V to 1.95V V CCB = 1.4V to 1.6V V CCB = 1.1V to 1.3V MinMax Min Max Min Max Min Max Min Max t PLH Propagation Delay A to B 0.5 4.30.6 4.80.9 6.0 1.07.6 1.622.0ns t PHL Propagation Delay B to A 0.3 3.90.4 4.20.5 4.50.5 4.8 1.07.0t PZH Output Enable OE to B 0.8 5.1 1.0 5.5 1.5 6.9 1.57.4 2.019.0ns t PZL Output Enable OE to A 0.6 4.50.6 4.50.6 4.50.6 4.50.6 4.5t PHZ Output Disable OE to B 0.4 4.60.4 4.80.9 5.3 1.77.1 2.019.0ns t PLZOutput Disable OE to A0.24.00.24.00.24.00.24.00.24.0SymbolParameterT A = −40°C to +85°CUnitsV CCB = 3.0V to 3.6V V CCB = 2.3V to 2.7V V CCB = 1.65V to 1.95V V CCB = 1.4V to 1.6V V CCB = 1.1V to 1.3V MinMax Min Max Min Max Min Max Min Max t PLH Propagation Delay A to B 0.5 4.60.7 5.1 1.1 6.2 1.17.8 1.722.0ns t PHL Propagation Delay B to A 0.5 5.40.5 5.60.8 5.7 1.0 6.0 1.28.0t PZH Output Enable OE to B 0.8 5.4 1.0 5.9 1.57.3 1.57.7 2.020.0ns t PZL Output Enable OE to A 1.0 6.7 1.0 6.7 1.0 6.7 1.0 6.7 1.0 6.7t PHZ Output Disable OE to B 0.4 4.70.4 4.9 1.0 5.4 1.77.2 2.019.0ns t PLZOutput Disable OE to A0.55.00.55.00.55.00.55.00.55.0SymbolParameterT A = −40°C to +85°CUnitsV CCB = 3.0V to 3.6V V CCB = 2.3V to 2.7V V CCB = 1.65V to 1.95V V CCB = 1.4V to 1.6V V CCB = 1.1V to 1.3V MinMax Min Max Min Max Min Max Min Max t PLH Propagation Delay A to B 0.7 4.80.8 5.3 1.2 6.4 1.37.9 2.022.0ns t PHL Propagation Delay B to A 0.6 6.80.8 6.90.97.1 1.07.3 1.39.5t PZH Output Enable OE to B 1.1 5.8 1.3 6.3 1.57.8 2.08.1 2.020.0ns t PZL Output Enable OE to A 1.07.5 1.07.5 1.07.5 1.07.5 1.07.5t PHZ Output Disable OE to B 0.6 4.80.6 5.1 1.1 5.8 2.07.7 2.020.0ns t PLZOutput Disable OE to A1.06.01.06.01.06.01.06.01.06.0FXLH42245AC Electrical Characteristics V CCA = 1.1V to 1.3VCapacitanceSymbolParameterT A = −40°C to +85°CUnitsV CCB = 3.0V to 3.6V V CCB = 2.3V to 2.7V V CCB = 1.65V to 1.95V V CCB = 1.4V to 1.6V V CCB = 1.1V to 1.3V MinMax Min Max Min Max Min Max Min Max t PLH Propagation Delay A to B 1.013.8 1.07.8 1.08.4 1.010.4 2.024.0ns t PHL Propagation Delay B to A 1.422.0 1.422.0 1.522.0 1.522.0 2.024.0t PZH Output Enable OE to B 1.512.6 1.59.6 1.510.6 2.011.6 2.024.0ns t PZL Output Enable OE to A 2.022.0 2.022.0 2.022.0 2.022.0 2.022.0t PHZ Output Disable OE to B 1.215.00.97.6 1.28.6 2.010.6 3.021.0ns t PLZOutput Disable OE to A2.015.02.012.02.012.02.012.02.012.0Symbol ParameterConditionsT A = +25°C Units Typical C IN Input Capacitance Control Pins (OE, T/R)V CCA = V CCB = 3.3V, V I = 0V or V CCA/B 4.0pF C I/O Input/Output Capacitance A n , B n Port V CCA = V CCB = 3.3V, V I = 0V or V CCA/B5.0pF C PDPower Dissipation CapacitanceV CCA = V CCB = 3.3V, V I = 0V or V CC , F = 10 MHz20.0pF 8F X L H 42245AC Loading and WaveformsFIGURE 1. AC Test CircuitAC Load TableNote: Input t R = t F = 2.0 ns, 10% to 90%FIGURE 2. Waveform for Inverting and Non-Inverting FunctionsNote: Input t R = t F = 2.0 ns, 10% to 90%FIGURE 3. 3-STATE Output High Enable and Disable Times for Low Voltage LogicNote: Input t R = t F = 2.0 ns, 10% to 90%FIGURE 4. 3-STATE Output Low Enable and Disable Times for Low Voltage LogicNote: For V mi ; V CCI = V CCA for control pins T/R and OE, or (V CCA /2).Test Switch t PLH , t PHL Opent PLZ , t PZL V CCO x 2 at V CCO = 3.3V ± 0.3V, 2.5V ± 0.2V, 1.8V ± 0.15V, 1.5V ± 0.1V, 1.2V ± 0.1Vt PHZ , t PZHGNDV CCO C L R L R TR11.2V ± 0.1V 15 pF 2k Ω2k Ω1.5V ± 0.1V 15 pF 2k Ω2k Ω1.8V ± 0.15V 30 pF 500Ω500Ω2.5V ± 0.2V 30 pF 500Ω500Ω3.3V ± 0.3V30 pF500Ω500ΩSymbol V CC3.3V ± 0.3V 2.5V ± 0.2V V mi V CCI /2V CCI /2V mo V CCO /2V CCO /2V X V OH − 0.3V V OH − 0.15V V YV OL + 0.3VV OL + 0.15VSymbol V CC1.8V ± 0.15V 1.5V ± 0.1V 1.2V ± 0.1V V mi V CCI /2V CCI /2V CCI /2V mo V CCO /2V CCO /2V CCO /2V X V OH − 0.15V V OH − 0.1V V OH − 0.1V V YV OL + 0.15VV OL + 0.1VV OL + 0.1VFXLH42245Tape and Reel SpecificationTape Format for MLPTAPE DIMENSIONS inches (millimeters)REEL DIMENSIONS inches (millimeters)PackageTape Number Cavity Cover Tape DesignatorSection Cavities Status Status Leader (Start End)125 (typ)Empty Sealed MPXCarrier 3000Filled Sealed Trailer (Hub End)75 (typ)EmptySealedTapeSize A B C D N W1W212 mm13.00.0590.5120.795 2.1650.4880.724(330.0)(1.50)(13.00)(20.20)(55.00)(12.4)(18.4)10F X L H 42245 L o w V o l t a g e D u a l S u p p l y 8-B i t S i g n a l T r a n s l a t o r w i t h C o n f i g u r a b l e V o l t a g e S u p p l i e s a n d B u s h o l d D a t a I n p u t s a n d 3-S T A T E O u t p u t s a n d 26Ω S e r i e s R e s i s t o r s i n t h e B P o r t O u t p u t sPhysical Dimensions inches (millimeters) unless otherwise noted24-Terminal Molded Leadless Package (MLP), JEDEC MO-220, 3.5mm x 4.5mmPackage Number MLP024BFairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications.LIFE SUPPORT POLICYFAIRCHILD ’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein:1.Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be rea-sonably expected to result in a significant injury to the user. 2. A critical component in any component of a life support device or system whose failure to perform can be rea-sonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.。
