IDT74FCT164245T FAST CMOS 16-BIT BIDIRECTIONAL 3.3V TO 5V TRANSLATOR INDUSTRIAL TEMPERATURE RANGE FAST CMOS 16-BIT BIDIRECTIONAL 3.3V TO 5V TRANSLATOR IDT74FCT164245T FEATURES: DESCRIPTION: * * * * The FCT164245T 16-bit 3.3V-to-5V translator is built using advanced dual metal CMOS technology. This high-speed, low-power transceiver is designed to interface between a 3.3V bus and a 5V bus in a mixed 3.3V/ 5V supply environment. This enables system designers to interface TTL compatible 3.3V components with 5V components. The direction and output enable controls operate these devices as either two independent 8-bit transceivers or one 16-bit transceiver. The A port interfaces with the 3.3V bus; the B port interfaces with the 5V bus. The direction control (xDIR) pin controls the direction of data flow. The output enable pin (xOE) overrides the direction control and disables both ports. These control signals can be driven from either 3.3V or 5V devices. The FCT164245T is ideally suited for driving high-capacitance loads and low-impedance backplanes. The output buffers are designed with power off disable capability to allow "hot insertion" of boards when used as backplane drivers. They also allow interface between a mixed supply system and external 5 volt peripherals. * * * * * 0.5 MICRON CMOS Technology Bidirectional interface between 3.3V and 5V buses Control inputs can be driven from either 3.3V or 5V circuits ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) VCC1 = 5V 10%, VCC2 = 2.7V to 3.6V High drive outputs (-32mA IOH, 64mA IOL) on 5V port Power off disable on both ports permits "live insertion" Typical VOLP (Output Ground Bounce) < 0.9V at VCC1 = 5V, VCC2 = 3.3V, TA = 25C Available in SSOP and TSSOP packages FUNCTIONAL BLOCK DIAGRAM 2 DIR 48 47 2A1 2 1A2 3.3V Port 1A4 2A3 43 41 8 1A6 2A4 2A5 2A6 2A7 2A8 12 1B8 16 2B3 17 2B4 19 2B5 20 2B6 22 2B7 23 2B8 32 30 29 27 1B7 37 2B2 33 1B6 38 11 1A8 1B5 40 9 1A7 14 1B3 1B4 2B1 35 1B2 44 6 1A5 13 2A2 5 2OE 36 1B1 46 3 1A3 25 1OE 3.3V Port 1A1 24 5V Port 1 5V Port 1 DIR 26 The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE SEPTEMBER 2009 1 (c) 2009 Integrated Device Technology, Inc. DSC-2555/9 IDT74FCT164245T FAST CMOS 16-BIT BIDIRECTIONAL 3.3V TO 5V TRANSLATOR INDUSTRIAL TEMPERATURE RANGE ABSOLUTE MAXIMUM RATINGS(1) PIN CONFIGURATION Symbol Description Max Unit VTERM(2) Terminal Voltage with Respect to GND -0.5 to +7 V 1OE VTERM(3) Terminal Voltage with Respect to GND -0.5 to Vcc1+0.5 V TA Operating Temperature -40 to +85 C TBIAS Temperature Under Bias -55 to +125 C TSTG Storage Temperature -55 to +125 C PT Power Dissipation 1 W IOUT DC Output Current -60 to +120 mA 1DIR 1 48 1B1 2 47 1A1 1B2 3 46 1A2 GND 4 45 GND 1B3 5 44 1B4 6 43 1A4 VCC1 7 42 VCC2 1B5 8 41 1A5 1B6 9 40 1A6 GND 10 39 GND 1B7 11 38 1A7 1B8 12 37 1A8 1A3 NOTES: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2. All devices except Vcc2. 3. Power supply terminal Vcc2. CAPACITANCE (TA = +25C, F = 1.0MHz) Parameter(1) Symbol Conditions Typ. Max. Unit CIN Input Capacitance VIN = 0V 3.5 6 pF CI/O I/O Capacitance VOUT = 0V 3.5 8 pF 2B1 13 36 2B2 14 35 2A2 GND 15 34 GND 2B3 16 33 2A3 2B4 17 32 2A4 VCC1 18 31 VCC2 xDIR Direction Control Input 2B5 19 30 2A5 xAx Side A Inputs or 3-State Outputs (3.3V Port) 2B6 20 29 2A6 xBx Side B Inputs or 3-State Outputs (5V Port) GND 21 28 GND 2B7 22 27 2A7 2B8 23 26 2A8 2DIR 24 25 2OE 2A1 NOTE: 1. This parameter is measured at characterization but not tested. PIN DESCRIPTION Pin Names xOE Description Output Enable Input (Active LOW) FUNCTION TABLE(1) Inputs xOE SSOP/ TSSOP TOP VIEW xDIR L L Bus B Data to Bus A L H Bus A Data to Bus B H X High Z State NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care Z = High-Impedance POWER SUPPLY SEQUENCING In the 74FCT164245T, the condition of VCC1 (VCC2 - 0.5V) must be maintained at all times. For the range of VCC1 = (VCC2 - 0.5V) to VCC1 = (VCC2 + 0.9V), both the A and B ports will remain in a High-Impedance state. 2 Outputs IDT74FCT164245T FAST CMOS 16-BIT BIDIRECTIONAL 3.3V TO 5V TRANSLATOR INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE (A PORT, 3.3V) Following Conditions Apply Unless Otherwise Specified: VCC1 = 5V 10%, VCC2 = 2.7V to 3.6V, Industrial: TA = -40C to +85C Symbol Test Conditions(1) Parameter Min. Typ.(2) Max. Unit VIH Input HIGH Level (Input and I/O pins) Guaranteed Logic HIGH Level 2 -- 5.5 V VIL Input LOW Level (Input and I/O pins) Guaranteed Logic LOW Level -0.5 -- 0.8 V IIH Input HIGH Current (Input pins) VCC1 = Max. VI = 5.5V -- -- 5 Input HIGH Current (I/O pins) VCC2 = Max. VI = VCC2 -- -- 15 Input LOW Current (Input pins) VI = GND -- -- 5 Input LOW Current (I/O pins) VI = GND -- -- 15 IIL VIK Clamp Diode Voltage VCC2 = Min., IIN = -18mA VOH Output HIGH Voltage VCC1 = VCC2 = Min. A -- -0.7 -1.2 V VCC2 -0.2 -- -- V IOH = -8mA 2.4 3 -- VCC1 = Min. IOL = 0.1mA -- -- 0.2 VCC2 = Min. IOL = 16mA -- 0.2 0.4 VIN = VIH or VIL IOL = 24mA -- 0.3 0.55 VCC = 3V IOL = 24mA -- 0.3 0.5 IOH = -0.1mA VIN = VIH or VIL VCC2 = 3V VIN = VIH or VIL VOL Output LOW Voltage V VIN = VIH or VIL IOFF Input/Output Power Off Leakage VCC1 = 0V, VCC2 = 0V, VIN or VO 4.5V -- -- 100 A IOS Short Circuit Current(4) VCC1 = Max., VCC2 = Max., VO = GND(3) -70 -105 -150 mA IO Output Drive Current VCC1 = Max., VCC2 = Max., VO = 1.5V(3) -40 -60 -90 mA VH Input Hysteresis -- -- 150 -- mV ICC2 Quiescent Power Supply Current VCC1 = Max. -- 0.35 2 mA ICC2H VCC2 = Max. ICC2Z VIN = GND or VCC2 NOTES: 1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC1 = 5V, VCC2 = 3.3V, +25C ambient. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. This parameter is guaranteed but not tested. 3 IDT74FCT164245T FAST CMOS 16-BIT BIDIRECTIONAL 3.3V TO 5V TRANSLATOR INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE (B PORT, 5V) Following Conditions Apply Unless Otherwise Specified: VCC1 = 5V 10%, VCC2 = 2.7V to 3.6V, Industrial: TA = -40C to +85C Symbol Test Conditions(1) Parameter Min. Typ.(2) Max. Unit VIH Input HIGH Level (Input and I/O pins) Guaranteed Logic HIGH Level 2 -- 5.5 V VIL Input LOW Level (Input and I/O pins) Guaranteed Logic LOW Level -0.5 -- 0.8 V IIH Input HIGH Current (Input pins) VCC1 = Max. -- -- 5 Input HIGH Current (I/O pins) VCC2 = Max. -- -- 15 -- -- 5 -- -- 15 IIL VI = VCC1 Input LOW Current (Input pins) VI = GND Input LOW Current (I/O pins) A VIK Clamp Diode Voltage VCC1 = Min., IIN = -18mA -- -0.7 -1.2 V VOH Output HIGH Voltage VCC1 = Min. IOH = -3mA 2.5 3.5 -- V VCC2 = Min. IOH = -15mA 2.4 3.5 -- VIN = VIH or VIL IOH = -32mA(5) 2 3 -- VCC1 = Min. IOL = 64mA -- 0.2 0.55 V -- -- 100 A -80 -140 -225 mA -50 -75 -180 mA VOL Output LOW Voltage VCC2 = Min. VIN = VIH or VIL IOFF Input/Output Power Off Leakage (4) VCC1 = 0V, VCC2 = 0V, VIN or VO 4.5V IOS Short Circuit Current IO Output Drive Current VCC1 = Max., VCC2 = Max., VO = 2.5V(3) VH Input Hysteresis -- -- 150 -- mV Quiescent Power Supply Current VCC1 = Max. VCC2 = Max. VIN = GND or VCC2 -- 0.08 1.5 mA ICC2 ICC2H ICC2Z VCC1 = Max., VCC2 = Max., VO = GND (3) NOTES: 1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC1 = 5V, VCC2 = 3.3V, +25C ambient. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. This parameter is guaranteed but not tested. 5. Duration of the condition cannot exceed one second. 4 IDT74FCT164245T FAST CMOS 16-BIT BIDIRECTIONAL 3.3V TO 5V TRANSLATOR INDUSTRIAL TEMPERATURE RANGE POWER SUPPLY CHARACTERISTICS Test Conditions(1) Symbol Parameter ICC Quiescent Power Supply Current TTL Inputs HIGH VCC1 = Max., VCC2 = Max. VIN = VCC2 - 0.6V(3) ICCD Dynamic Power Supply Current(4) VCC1 = Max., VCC2 = Max. Outputs Open xOE = xDIR = GND One Input Togging 50% Duty Cycle Total Power Supply Current(6) VCC1 = Max., VCC2 = Max. Outputs Open fI = 10MHz 50% Duty Cycle IC Min. Typ.(2) Max. Unit -- 12 30 A VIN = VCC2 VIN = GND -- 75 120 A/ MHz VIN = VCC2 - 0.6V VIN = GND -- 1.2 4.7 mA VIN = VCC2 - 0.6V VIN = GND -- 3.5 8.5(5) xOE = xDIR = GND One Bit Toggling VCC1 = Max., VCC2 = Max. Outputs Open fI = 2.5MHz 50% Duty Cycle xOE = xDIR = GND Sixteen Bits Toggling NOTES: 1. For conditions shown as Min. or Max., use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC1 = 5V, VCC2 = 3.3V, +25C ambient. 3. Per TTL driven input. All other inputs at VCC or GND. 4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations. 5. Values for these conditions are examples of the ICC formula. These limits are guaranteed but not tested. 6. IC = IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC1 + ICC2 + ICC DHNT + ICCD (fCPNCP/2 + fiNi) ICC1 = Quiescent Current (ICC1L, ICC1H and ICC1Z) ICC2 = Quiescent Current (ICC2L, ICC2H and ICC2Z) ICC = Power Supply Current for a TTL High Input DH = Duty Cycle for TTL Inputs High NT = Number of TTL Inputs at DH ICCD = Dynamic Current caused by an Input Transition Pair (HLH or LHL) fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices) NCP = Number of Clock Inputs at fCP fi = Input Frequency Ni = Number of Inputs at fi 5 IDT74FCT164245T FAST CMOS 16-BIT BIDIRECTIONAL 3.3V TO 5V TRANSLATOR INDUSTRIAL TEMPERATURE RANGE SWITCHING CHARACTERISTICS OVER OPERATING RANGE(1) Condition(1) Min.(2) Max. Unit Propagation Delay CL = 50pF 1.5 5 ns A to B RL = 500 1.5 5 ns 1.5 6.5 ns 1.5 6 ns 1.5 6.5 ns 1.5 6 ns 1.5 6.5 ns 1.5 6 ns 1.5 6.5 ns 1.5 6 ns Symbol Parameter tPLH tPHL tPLH Propagation Delay tPHL B to A tPZH Output Enable Time tPZL xOE to B tPHZ Output Disable Time tPLZ xOE to B tPZH Output Enable Time tPZL xOE to A tPHZ Output Disable Time tPLZ xOE to A tPZH Output Enable Time tPZL xDIR to B(3) tPHZ Output Disable Time tPLZ xDIR to B(3) tPZH Output Enable Time tPZL xDIR to A(3) tPHZ Output Disable Time tPLZ xDIR to A(3) NOTES: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. This parameter is guaranteed but not tested. 6 IDT74FCT164245T FAST CMOS 16-BIT BIDIRECTIONAL 3.3V TO 5V TRANSLATOR INDUSTRIAL TEMPERATURE RANGE TEST CIRCUITS AND WAVEFORMS SWITCH POSITION 6V VCC Open GND 500 VOUT VIN Pulse Generator D.U.T. 50pF RT Test Switch Open Drain Disable Low Enable Low 6V Disable High Enable High GND All Other Tests Open DEFINITIONS: CL = Load capacitance: includes jig and probe capacitance. RT = Termination resistance: should be equal to ZOUT of the Pulse Generator. 500 CL Test Circuits for All Outputs DATA INPUT tH tSU TIMING INPUT ASYNCHRONOUS CONTROL PRESET CLEAR ETC. SYNCHRONOUS CONTROL PRESET CLEAR CLOCK ENABLE ETC. tREM tSU 3V 1.5V 0V 3V 1.5V 0V LOW-HIGH-LOW PULSE tW 3V 1.5V 0V HIGH-LOW-HIGH PULSE 3V 1.5V 0V tH 1.5V 1.5V Pulse Width Set-up, Hold, and Release Times ENABLE SAME PHASE INPUT TRANSITION tPLH tPHL OUTPUT tPLH OPPOSITE PHASE INPUT TRANSITION tPHL 3V 1.5V 0V VOH 1.5V VOL DISABLE 3V 1.5V 0V CONTROL INPUT tPZL OUTPUT NORMALLY LOW 3V 1.5V 0V SWITCH 6V tPLZ 3V 1.5V tPZH OUTPUT NORMALLY HIGH Propagation Delay SWITCH GND 3V 0.3V VOL tPHZ 0.3V 1.5V 0V VOH 0V Enable and Disable Times NOTES: 1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH. 2. Pulse Generator for All Pulses: Rate 1.0MHz; tF 2.5ns; tR 2.5ns. 7 IDT74FCT164245T FAST CMOS 16-BIT BIDIRECTIONAL 3.3V TO 5V TRANSLATOR INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION XX Temp. Range FCT XX XXXX X Family Device Type Package PVG PAG Shrink Small Outline Package - Green Thin Shrink Small Outline Package - Green 245T 16-Bit Bidirectional 3.3 Volt to 5 Volt Translator 164 Double-Density 74 40 C to +85 C Datasheet Document History 09/28/09 Pg. 8 Updated the ordering information by removing the "IDT" notation and non RoHS part. CORPORATE HEADQUARTERS 6024 Silver Creek Valley Road San Jose, CA 95138 for SALES: 800-345-7015 or 408-284-8200 fax: 408-284-2775 www.idt.com 8 for Tech Support: logichelp@idt.com