IDT74FCT2240AT/CT FAST CMOS OCTAL BUFFER/LINE DRIVER INDUSTRIAL TEMPERATURE RANGE FAST CMOS OCTAL BUFFER/LINE DRIVER DESCRIPTION: FEATURES: • • • • • • • • IDT74FCT2240AT/CT The IDT octal buffer/line driver is built using an advanced dual metal CMOS technology. The FCT2240T is designed to be employed as a memory and address driver, clock driver, and bus-oriented transmitter/ receiver which provides improved board density. The FCT2240T has balanced output drive with current limiting resistors. This offers low ground bounce, minimal undershoot, and controlled output fall times, reducing the need for external series terminating resistors. The FCT2240T is a plug-in replacement for the FCT240T. A and C grades Low input and output leakage ≤1µA (max.) CMOS power levels True TTL input and output compatibility: – VOH = 3.3V (typ.) – VOL = 0.3V (typ.) Meets or exceeds JEDEC standard 18 specifications Resistor outputs (-15mA IOH, 12mA IOL) Reduced system switching noise Available in SOIC and QSOP packages FUNCTIONAL BLOCK DIAGRAM OE A OE B DA 0 OA 0 OB 0 DB 0 DA 1 OA 1 OB 1 DB 1 DA 2 OA 2 OB 2 DB 2 DA 3 OA 3 OB 3 DB 3 The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE JUNE 2002 1 © 2002 Integrated Device Technology, Inc. DSC-5585/2 IDT74FCT2240AT/CT FAST CMOS OCTAL BUFFER/LINE DRIVER INDUSTRIAL TEMPERATURE RANGE ABSOLUTE MAXIMUM RATINGS(1) PIN CONFIGURATION OEA 1 20 VCC DA0 2 3 19 18 OEB OA0 4 17 DB0 OB1 5 16 OA1 DA2 6 15 OB2 7 14 DB1 OA2 DA3 8 13 DB2 OB3 GND 9 12 OA3 10 11 DB3 OB0 DA1 Symbol Description VTERM(2) Max Unit VTERM(3) Terminal Voltage with Respect to GND –0.5 to +7 V Terminal Voltage with Respect to GND –0.5 to VCC+0.5 V TSTG Storage Temperature –65 to +150 °C IOUT 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. No terminal voltage may exceed Vcc by +0.5V unless otherwise noted. 2. Inputs and Vcc terminals only. 3. Output and I/O terminals only. CAPACITANCE (TA = +25°C, F = 1.0MHz) Parameter(1) Symbol SOIC/ QSOP TOP VIEW Conditions Typ. Max. CIN Input Capacitance VIN = 0V 6 10 pF COUT Output Capacitance VOUT = 0V 8 12 pF NOTE: 1. This parameter is measured at characterization but not tested. PIN DESCRIPTION Pin Names OEA, OEB Description 3-State Output Enable Inputs (Active LOW) Dxx Inputs Oxx Outputs FUNCTION TABLE(1) OEA L L H Inputs OEB L L H NOTE: 1. H = HIGH Voltage Level X = Don’t Care L = LOW Voltage Level Z = High Impedance 2 Unit D L H X Outputs H L Z IDT74FCT2240AT/CT FAST CMOS OCTAL BUFFER/LINE DRIVER INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Industrial: TA = –40°C to +85°C, VCC = 5.0V ±5% 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 VCC = Max. VI = 2.7V — — ±1 µA IIL Input LOW Current VCC = Max. VI = 0.5V — — ±1 µA IOZH High Impedance Output Current VCC = Max. VI = 2.7V — — ±1 µA IOZL (3-State Output Pins) VI = 0.5V — — ±1 II Input HIGH Current VCC = Max., VI = VCC (Max.) — — ±1 VIK Clamp Diode Voltage VCC = Min., IIN = –18mA VH Input Hysteresis ICC Quiescent Power Supply Current — VCC = Max. VIN = GND or VCC µA — –0.7 –1.2 V — 200 — mV — 0.01 1 mA Min. 16 -16 2.4 Typ.(2) 48 -48 3.3 Max. — — — Unit mA mA V — 0.3 0.5 V OUTPUT DRIVE CHARACTERISTICS Symbol IODL IODH VOH VOL Parameter Output LOW Current Output HIGH Current Output HIGH Voltage Output LOW Voltage Test Conditions(1) VCC = 5V, VIN = VIH or VIL, VOUT = 1.5V(3) VCC = 5V, VIN = VIH or VIL, VOUT = 1.5V(3) VCC = Min IOH = –15mA VIN = VIH or VIL VCC = Min IOL = 12mA 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, +25°C ambient. 3. Not more than one output should be tested at one time. Duration of the test should not exceed one second. 3 IDT74FCT2240AT/CT FAST CMOS OCTAL BUFFER/LINE DRIVER INDUSTRIAL TEMPERATURE RANGE POWER SUPPLY CHARACTERISTICS Test Conditions(1) Min. Typ.(2) Max. Unit — 0.5 2 mA VIN = VCC VIN = GND — 0.06 0.12 mA/ MHz VCC = Max. Outputs Open fi = 10MHz VIN = VCC VIN = GND — 0.6 2.2 mA 50% Duty Cycle OEA or OEB = GND One Bit Toggling VIN = 3.4V VIN = GND — 0.9 3.2 VCC = Max. Outputs Open fi = 2.5MHz VIN = VCC VIN = GND — 1.2 3.4(5) 50% Duty Cycle OEA or OEB = GND Four Bits Toggling VIN = 3.4V VIN = GND — 3.2 11.4(5) Symbol Parameter ∆ICC Quiescent Power Supply Current TTL Inputs HIGH VCC = Max. VIN = 3.4V(3) ICCD Dynamic Power Supply Current(4) VCC = Max. Outputs Open OEA or OEB = GND One Input Toggling 50% Duty Cycle IC Total Power Supply Current(6) 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, +25°C 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 ∆ICC formula. These limits are guaranteed but not tested. 6. IC = IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ∆ICC DHNT + ICCD (fCP/2+ fiNi) ICC = Quiescent Current ∆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) fi = Output Frequency Ni = Number of Outputs at fi All currents are in milliamps and all frequencies are in megahertz. SWITCHING CHARACTERISTICS OVER OPERATING RANGE FCT2240AT FCT2240CT Parameter Condition(1) tPLH tPHL Propagation Delay Dx to Ox CL = 50pF RL = 500Ω tPZH tPZL Output Enable Time 1.5 6.2 1.5 5.8 ns tPHZ tPLZ Output Disable Time 1.5 5.6 1.5 5.2 ns Symbol NOTES: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 4 Min.(2) 1.5 Max. Min.(2) Max. Unit 4.8 1.5 4.3 ns IDT74FCT2240AT/CT FAST CMOS OCTAL BUFFER/LINE DRIVER INDUSTRIAL TEMPERATURE RANGE TEST CIRCUITS AND WAVEFORMS V CC SWITCH POSITION 7.0V 500Ω V OUT VIN Pulse Generator D.U.T . 50pF RT 500Ω 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 Octal link Test Circuits for All Outputs DATA INPUT tH tSU TIMING INPUT ASYNCHRONOUS CONTROL PRESET CLEAR ETC. SYNCHRONOUS CONTROL PRESET CLEAR CLOCK ENABLE ETC. 3V 1.5V 0V 3V 1.5V 0V tREM tSU LOW-HIGH-LOW PULSE 1.5V tW 3V 1.5V 0V HIGH-LOW-HIGH PULSE 3V 1.5V 0V tH 1.5V Octal link Pulse Width Octal link 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 Octal link SWITCH CLOSED tPZH SWITCH OPEN 0V tPLZ tPZL VOH 1.5V VOL 3.5V 3.5V 1.5V 0.3V VOL tPHZ 0.3V 1.5V 0V VOH 0V Octal link Propagation Delay 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 IDT74FCT2240AT/CT FAST CMOS OCTAL BUFFER/LINE DRIVER INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDT XX Temperature Range FCT X X Device Type Package SO Q Small Outline IC Quarter-size Small Outline Package 2240AT Fast CMOS Octal Buffer/Line Driver 2240CT 74 CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 - 40°C to +85°C for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com 6 for Tech Support: [email protected] (408) 654-6459