IDT74FCT166244AT/CT FAST CMOS 16-BIT BUFFER/LINE DRIVER INDUSTRIAL TEMPERATURE RANGE FAST CMOS 16-BIT BUFFER/LINE DRIVER IDT74FCT166244AT/CT DESCRIPTION: FEATURES: The FCT166244T 16-Bit Buffer/Line Driver is for bus interface or signal buffering applications requiring high speed and low power dissipation. These devices have a flow through pin organization, and shrink packaging to simplify board layout. All inputs are designed with hysteresis for improved noise margin. The three-state controls allow independent 4-bit, 8-bit or combined 16bit operation. These parts are plug in replacements for ABT16244 where higher speed, lower noise or lower power dissipation levels are desired. The FCT166244T is suited for very low noise, point-to-point driving where there is a single receiver, or a very light lumped load (<100pF). The buffers are designed to limit the output current to levels which will avoid noise and ringing on the signal lines without using external series terminating resistors. * * * * * * * 0.5 MICRON CMOS Technology High-speed, low-power CMOS replacement for ABT functions Typical tSK(o) (Output Skew) < 250ps Low input and output leakage 1A (max.) Light drive balanced output of 8mA Minimal system switching noise Typical VOLP (Output Ground Bounce) < 0.25V at VCC = 5V, TA = 25C * Power off disable outputs permit "live insertion" * Available in TSSOP package FUNCTIONAL BLOCK DIAGRAM 1 OE 3 OE 1A 1 1Y 1 1A 2 1Y 2 1A 3 1A 4 3A 1 3Y 1 3A 2 3Y 2 1Y 3 3A 3 3Y 3 1Y 4 3A 4 3Y 4 2 OE 4 OE 2A 1 2Y 1 2A 2 2Y 2 2A 3 2Y 3 2A 4 2Y 4 4A 1 4Y 1 4A 2 4Y 2 4A 3 4Y 3 4A 4 4Y 4 The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE JUNE 2006 1 2006 Integrated Device Technology, Inc. DSC-5462/4 IDT74FCT166244AT/CT FAST CMOS 16-BIT BUFFER/LINE DRIVER INDUSTRIAL TEMPERATURE RANGE ABSOLUTE MAXIMUM RATINGS(1) PIN CONFIGURATION 48 Symbol Description VTERM(2) Terminal Voltage with Respect to GND 1OE 1 1Y 1 2 47 1A 1 TSTG 1Y 2 3 46 1A 2 IOUT GND 4 45 GND 1Y 3 5 44 1A 3 1Y 4 6 43 1A 4 VCC 7 42 VCC 2Y 1 8 41 2A 1 2Y 2 9 40 2A 2 GND 10 39 GND 2Y 3 11 38 2A 3 Symbol 2Y 4 12 37 2A 4 CIN COUT 2OE 3Y 1 13 36 3Y 2 14 35 3A 2 GND 15 34 GND 3Y 3 16 33 3A 3 3Y 4 17 32 3A 4 VCC 18 31 VCC 4Y 1 19 30 4A 1 4Y 2 20 29 4A 2 GND 21 28 GND 4Y 3 22 27 4A 3 4Y 4 23 26 4A 4 4OE 24 25 3OE VTERM(3) Terminal Voltage with Respect to GND Max Unit -0.5 to +7 V -0.5 to VCC+0.5 V Storage Temperature -65 to +150 C DC Output Current -60 to +120 mA 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 device terminals except FCT162XXX Output and I/O terminals. 3. Output and I/O terminals for FCT162XXX. CAPACITANCE (TA = +25C, F = 1.0MHz) 3A 1 Parameter(1) Conditions Typ. Max. Unit Input Capacitance VIN = 0V 3.5 6 pF Output Capacitance VOUT = 0V 3.5 8 pF NOTE: 1. This parameter is measured at characterization but not tested. PIN DESCRIPTION Pin Names xOE xAx xYx Description 3-State Output Enable Inputs (Active LOW) Data Inputs 3-State Outputs FUNCTION TABLE(1) Inputs xOE L L H TSSOP TOP VIEW NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care Z = High-Impedance 2 xAx L H X Outputs xYx L H Z IDT74FCT166244AT/CT FAST CMOS 16-BIT BUFFER/LINE DRIVER INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Industrial: TA = -40C to +85C, VCC = 5.0V 10% Symbol Test Conditions(1) Parameter Min. Typ.(2) Max. Unit VIH Input HIGH Level Guaranteed Logic HIGH Level 2 -- -- V VIL Input LOW Level Guaranteed Logic LOW Level -- -- 0.8 V IIH Input HIGH Current (Input pins)(5) VCC = Max. -- -- 1 A -- -- 1 VI = VCC Input HIGH Current (I/O pins)(5) IIL Input LOW Current (Input pins)(5) VI = GND -- -- 1 -- -- 1 VO = 2.7V -- -- 1 VO = 0.5V -- -- 1 Input LOW Current (I/O pins)(5) IOZH High Impedance Output Current IOZL (3-State Output pins)(5) VCC = Max. VIK Clamp Diode Voltage VCC = Min., IIN = -18mA -- -0.7 -1.2 V IOS Short Circuit Current VCC = Max., VO = GND(3) -80 -140 -250 mA VH Input Hysteresis -- 100 -- mV ICCL ICCH ICCZ Quiescent Power Supply Current -- 5 500 A -- VCC = Max. VIN = GND or VCC A OUTPUT DRIVE CHARACTERISTICS Symbol Parameter Test Conditions(1) IODL Output LOW Current VCC = 5V, VIN = VIH or VIL, VO = 1.5V(3) IODL VOH Output HIGH Current Output HIGH Voltage VOH Output LOW Voltage VCC = 5V, VIN = VIH or VIL, VO = 1.5V(3) VCC = Min. IOH = -8mA VIN = VIH or VIL VCC = Min. IOL = 8mA VIN = VIH or VIL 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 VCC = 5.0V, +25C ambient. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. Duration of the condition can not exceed one second. 5. The test limit for this parameter is 5A at TA = -55C. 3 Min. Typ.(2) Max. Unit 16 48 96 mA -16 2.4 -48 3.3 -96 -- mA V -- 0.3 0.55 V IDT74FCT166244AT/CT FAST CMOS 16-BIT BUFFER/LINE DRIVER INDUSTRIAL TEMPERATURE RANGE POWER SUPPLY CHARACTERISTICS Symbol ICC ICCD IC Parameter Quiescent Power Supply Current TTL Inputs HIGH Dynamic Power Supply Current(4) Total Power Supply Current(6) Test Conditions(1) VCC = Max. VIN = 3.4V(3) VCC = Max., Outputs Open xOE = GND One Input Toggling 50% Duty Cycle VCC = Max., Outputs Open fCP = 10MHz (CLKBA) 50% Duty Cycle xOE = GND One Bit Toggling VCC = Max., Outputs Open fi = 2.5MHz 50% Duty Cycle xOE = GND Sixteen Bits Toggling Min. -- Typ.(2) 0.5 Max. 1.5 Unit mA VIN = VCC VIN = GND -- 60 100 A/ MHz VIN = VCC VIN = GND -- 0.6 1.5 mA VIN = 3.4V VIN = GND -- 0.9 2.3 VIN = VCC VIN = GND -- 2.4 4.5(5) VIN = 3.4V VIN = GND -- 6.4 16.5(5) 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 VCC = 5.0V, +25C ambient. 3. Per TTL driven input (VIN = 3.4V). 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 = ICC + ICC DHNT + ICCD (fCPNCP/2 + fiNi) ICC = Quiescent Current (ICCL, ICCH and ICCZ) ICC = Power Supply Current for a TTL High Input (VIN = 3.4V) 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 SWITCHING CHARACTERISTICS OVER OPERATING RANGE 74FCT166244AT Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ tSK(o) Condition(1) CL = 50pF RL = 500 74FCT166422CT Min.(2) 1.5 Max. 4.8 Min.(2) 1.5 Max. 4.1 Unit ns 1.5 6.2 1.5 5.8 ns Output Disable Time 1.5 5.6 1.5 5.2 ns Output Skew(3) -- 0.5 -- 0.5 ns Parameter Propagation Delay xAx to xYx Output Enable Time NOTES: 1. See test circuits and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design. 4 IDT74FCT166244AT/CT FAST CMOS 16-BIT BUFFER/LINE DRIVER INDUSTRIAL TEMPERATURE RANGE TEST CIRCUITS AND WAVEFORMS V CC SWITCH POSITION 7.0V 500 V OUT VIN Pulse Generator D.U.T. 50pF RT 500 Test Switch Open Drain Disable Low Enable Low Closed 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. 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 1.5V tW 3V 1.5V 0V HIGH-LOW-HIGH PULSE 1.5V 3V 1.5V 0V tH 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 DISABLE 3V 1.5V CONTROL INPUT OUTPUT NORMALLY LOW 3V 1.5V 0V OUTPUT NORMALLY HIGH Propagation Delay SWITCH CLOSED tPZH SWITCH OPEN 0V tPLZ tPZL VOH 1.5V VOL 3.5V 1.5V 3.5V 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. 5 IDT74FCT166244AT/CT FAST CMOS 16-BIT BUFFER/LINE DRIVER INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDT XX FCT Temp. Range XXX Family XXXX Device Type XX Package CORPORATE HEADQUARTERS 6024 Silver Creek Valley Road San Jose, CA 95138 PA PAG Thin Shrink Small Outline Package TSSOP - Green 244AT 244CT 16-Bit Buffer/Line Driver 166 16-Bit, 5 Volt, Light Drive 74 - 40C to +85C for SALES: 800-345-7015 or 408-284-8200 fax: 408-284-2775 www.idt.com 6 for Tech Support: logichelp@idt.com