74541

74541 IDT | Alldatasheet

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IDT54/74FCT240/244T/AT/CT/DT - 2240/2244T/AT/CT, IDT54/74FCT540/541/2541T/AT/CT FAST CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES 6.8 1 Integrated Device Technology, Inc. MILITARY AND COMMERCIAL TEMPERATURE RANGES DECEMBER 1995  1996 Integrated Device Technology, Inc. 6.8 DSC-2565/6 DESCRIPTION: The IDT octal buffer/line drivers are built using an advanced dual metal CMOS technology. The FCT240T/FCT2240T and FCT244T/FCT2244T are designed to be employed as memory and address drivers, clock drivers and bus-oriented transmit- ter/receivers which provide improved board density. The FCT540T and FCT541T/FCT2541T are similar in function to the FCT240T/FCT2240T and FCT244T/FCT2244T, respectively, except that the inputs and outputs are on oppo- site sides of the package. This pinout arrangement makes these devices especially useful as output ports for micropro- cessors and as backplane drivers, allowing ease of layout and greater board density. The FCT2240T, FCT2244T and FCT2541T have 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 resis- tors. FCT2xxxT parts are plug-in replacements for FCTxxxT parts. FAST CMOS OCTAL BUFFER/LINE DRIVERS The IDT logo is a registered trademark of Integrated Device Technology, Inc. IDT54/74FCT240T/AT/CT/DT - 2240T/AT/CT IDT54/74FCT244T/AT/CT/DT - 2244T/AT/CT IDT54/74FCT540T/AT/CT IDT54/74FCT541/2541T/AT/CT FEATURES:

• Common features: – 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 – Product available in Radiation Tolerant and Radiation Enhanced versions – Military product compliant to MIL-STD-883, Class B and DESC listed (dual marked) – Available in DIP, SOIC, SSOP, QSOP, CERPACK and LCC packages
• Features for FCT240T/FCT244T/FCT540T/FCT541T: – Std., A, C and D speed grades – High drive outputs (-15mA I OH , 64mA IOL )
• Features for FCT2240T/FCT2244T/FCT2541T: – Std., A and C speed grades – Resistor outputs (-15mA I OH , 12mA IOL Com.) (-12mA IOH , 12mA IOL Mil.) – Reduced system switching noise 2565 drw 032565 drw 022565 drw 01 DA 0 DA 1 DA 2 DA 3 DB 0 DB 1 DB 2 DB 3 FCT240/2240T DA 0 OB 0 DA 1 OB 1 DA 2 OB 2 DA 3 OB 3 OA 0 DB 0 OA 1 DB 1 DB 2 DB 3 OA 2 OA 3 FCT244/2244T D0 O 0 O 1 O 2 O 3 O 4 O 5 O 6 O 7 FCT540/541/2541T *Logic diagram shown for 'FCT540. 'FCT541/2541T is the non-inverting option. OEA OEBOEA OEB OEA OB0 OB1 OB2 OB 3 OEB OA0 OA1 OA2 OA3 FUNCTIONAL BLOCK DIAGRAMS

IDT54/74FCT240/244T/AT/CT/DT - 2240/2244T/AT/CT, IDT54/74FCT540/541/2541T/AT/CT FAST CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES 6.8 2 PIN CONFIGURATIONS FCT240/2240T FCT244/2244T 2565 drw 08 2565 drw 04 2565 drw 07 DA 0 DA 1 DA 2 DA 3 GND DB 0 DB 1 DB 2 DB 3 VCC1 10 11 DIP/SOIC/SSOP/QSOP/CERPACK TOP VIEW P20-1 D20-1 SO20-2 SO20-7 SO20-8 E20-1 INDEX DA 1 DA 2 DA 3 DB 0 DB 1 DA 0 OB 0 OE A V CC OE B OB 3 GND DB 3 OA 3 DB 2 LCC TOP VIEW 3 2 20 19 9 1 01 11 21 3 L20-2 OE A OB 0 OB 1 OB 2 OB 3 OE B OA 0 OA 1 OA 2 OA 3 OB 1 OB 2 OA 0 OA 1 OA 2 DA 0 OB 0 DA 1 OB 1 DA 2 OB 2 DA 3 OB 3 GND OA 0 DB 0 OA 1 DB 1 DB 2 DB 3 OA 2 OA 3 VCC1 10 11 DIP/SOIC/SSOP/QSOP/CERPACK TOP VIEW P20-1 D20-1 SO20-2 SO20-7 SO20-8 E20-1 INDEX DA 1 OB 1 DA 2 OB 2 DA 3 OA 0 DB 0 OA 1 DB 1 OA 2 DA 0 OB 0 VCC OE B * OB 3 GND DB 3 OA 3 DB 2 LCC TOP VIEW 3 2 20 19 91 0 1 2 1 3 L20-2 OE B OE A OE A 2565 drw 05 FCT540/541/2541T D 2 D 3 D 4 D 5 D 6 D 7 GND O 0* O 1* O 2* O 3* O 5* O 7* O 4* O 6* VCC1 10 11 DIP/SOIC/QSOP/CERPACK TOP VIEW P20-1 D20-1 SO20-2 SO20-8 E20-1 INDEX D 2 D 3 D 4 D 5 D 6 O 0* O 1* O 2* O 3* O 4* LCC TOP VIEW 3 2 20 19 9 1 01 11 21 3 L20-2 V CC GND O 7* O 6* O 5* OE A OE A OE B OE B 2565 drw 06 2565 drw 09 *Ox for 540, Ox for 541/2541T

IDT54/74FCT240/244T/AT/CT/DT - 2240/2244T/AT/CT, IDT54/74FCT540/541/2541T/AT/CT FAST CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES 6.8 3 PIN DESCRIPTION FUNCTION TABLE ABSOLUTE MAXIMUM RATINGS (1) CAPACITANCE (TA = +25°C, f = 1.0MHz) Symbol Rating Commercial Military Unit VTERM (2) Terminal Voltage with Respect to GND VTERM (3) Terminal Voltage with Respect to GND –0.5 to V CC +0.5 –0.5 to VCC +0.5 V TA Operating Temperature 0 to +70 –55 to +125 °C TBIAS Temperature Under Bias –55 to +125 –65 to +135 TSTG Storage Temperature –55 to +125 –65 to +150 PT Power Dissipation 0.5 0.5 W IOUT DC Output Current –60 to +120 –60 to +120 mA 2565 lnk 03NOTES: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RAT- INGS 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 V CC by +0.5V unless otherwise noted. 2. Input and VCC terminals only. 3. Outputs and I/O terminals only. NOTES: 2565 tbl 02 1. H = High Voltage Level X = Don’t Care L = Low Voltage Level Z = High Impedance Symbol Parameter (1) Conditions Typ. Max. Unit CIN Input Capacitance VIN = 0V 6 10 pF COUT Output Capacitance V OUT = 0V 8 12 pF 2565 lnk 04NOTE: 1. This parameter is measured at characterization but not tested. Pin Names Description OEA, OEB 3–State Output Enable Inputs (Active LOW) Dxx Inputs Oxx Outputs 2565 tbl 01 Inputs(1) Outputs(1) OEOEA OEOEB D 240 244 540 541 LLL H LHL LLH L H L H H H X ZZZZ

IDT54/74FCT240/244T/AT/CT/DT - 2240/2244T/AT/CT, IDT54/74FCT540/541/2541T/AT/CT FAST CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES 6.8 4 DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Commercial: TA = 0°C to +70°C, VCC = 5.0V ± 5%; Military: TA = –55°C to +125°C, VCC = 5.0V ± 10% Symbol Parameter Test Conditions(1) Min. Typ.(2) Max. Unit VIH Input HIGH Level Guaranteed Logic HIGH Level 2.0 — — V VIL Input LOW Level Guaranteed Logic LOW Level — — 0.8 V II H Input HIGH Current(4) VCC = Max. VI = 2.7V — — ±1 µA II L Input LOW Current(4) VI = 0.5V — — ±1 IOZH High Impedance Output Current VCC = Max. VO = 2.7V — — ±1 µA IOZL (3-State Output pins)(4) VO = 0.5V — — ±1 II Input HIGH Current (4) VCC = Max., VI = VCC (Max.) — — ±1 µA VIK Clamp Diode Voltage VCC = Min., IIN = –18mA — –0.7 –1.2 V VH Input Hysteresis — — 200 — mV ICC Quiescent Power Supply Current VCC = Max., VIN = GND or VCC — 0.01 1 mA 2565 lnk 05 OUTPUT DRIVE CHARACTERISTICS FOR FCT240/244/540/541T Symbol Parameter Test Conditions(1) Min. Typ.(2) Max. Unit VOH Output HIGH Voltage VCC = Min. VIN = VIH or VIL IOH = –6mA MIL. IOH = –8mA COM'L. 2.4 3.3 — V IOH = –12mA MIL. IOH = –15mA COM'L. 2.0 3.0 — V VOL Output LOW Voltage VCC = Min. VIN = VIH or VIL IOL = 48mA MIL. IOL = 64mA COM'L. — 0.3 0.55 V IOS Short Circuit Current VCC = Max., VO = GND(3) –60 –120 –225 mA 2565 lnk 06 OUTPUT DRIVE CHARACTERISTICS FOR FCT2240/2244/2541T 2565 lnk 07NOTES: 1. For conditions shown as Max. or Min., 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 shorted at one time. Duration of the short circuit test should not exceed one second. 4. The test limit for this parameter is ±5µA at T A = –55°C. Symbol Parameter Test Conditions(1) Min. Typ.(2) Max. Unit IODL Output LOW Current VCC = 5V, VIN = VIH or VIL, VOUT = 1.5V(3) 16 48 — mA IODH Output HIGH Current VCC = 5V, VIN = VIH or V IL,VOUT = 1.5V(3) –16 –48 — mA VOH Output HIGH Voltage VCC = Min. VIN = VIH or VIL IOH = –12mA MIL. IOH = –15mA COM'L. 2.4 3.3 — V VOL Output LOW Voltage VCC = Min. VIN = VIH or VIL IOL = 12mA — 0.3 0.50 V

IDT54/74FCT240/244T/AT/CT/DT - 2240/2244T/AT/CT, IDT54/74FCT540/541/2541T/AT/CT FAST CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES 6.8 5 POWER SUPPLY CHARACTERISTICS Symbol Parameter Test Conditions(1) Min. Typ.(2) Max. Unit ΔICC Quiescent Power Supply Current TTL Inputs HIGH VCC = Max. VIN = 3.4V(3) — 0.5 2.0 mA ICCD Dynamic Power Supply Current (4) VCC = Max. Outputs Open OEA = OEB = GND VIN = VCC VIN = GND FCTxxxT — 0.15 0.25 mA/ MHz One Input Toggling 50% Duty Cycle FCT2xxxT — 0.06 0.12 IC Total Power Supply Current(6) VCC = Max. VIN = VCC FCTxxxT — 1.5 3.5 mA Outputs Open fi = 10MHz V IN = GND FCT2xxxT — 0.6 2.2 50% Duty Cycle OEA = OEB = GND VIN = 3.4 FCTxxxT — 1.8 4.5 One Bit Toggling V IN = GND FCT2xxxT 0.9 3.2 VCC = Max. VIN = VCC FCTxxxT — 3.0 6.0 (5) Outputs Open fi = 2.5MHz V IN = GND FCT2xxxT — 1.2 3.4 (5) 50% Duty Cycle OEA = OEB = GND VIN = 3.4 FCTxxxT — 5.0 14.0 (5) Eight Bits Toggling VIN = GND FCT2xxxT — 3.2 11.4 (5) NOTES: 1. For conditions shown as Max. or Min., 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 the I CC formula. These limits are guaranteed but not tested. 6. IC = IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ΔICC DH N T + ICCD (fCP/2 + fiN i) ICC = Quiescent Current ΔICC = Power Supply Current for a TTL High Input (VIN = 3.4V) D H = Duty Cycle for TTL Inputs High N T = 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 = Input Frequency N i = Number of Inputs at fi All currents are in milliamps and all frequencies are in megahertz. 2565 tbl 08

IDT54/74FCT240/244T/AT/CT/DT - 2240/2244T/AT/CT, IDT54/74FCT540/541/2541T/AT/CT FAST CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES 6.8 6 SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT240/2240T 2565 tbl 09 2565 tbl 10 SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT244/2244T 2565 tbl 11 NOTES: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 2565 tbl 12 FCT240T FCT2240T FCT240AT FCT2240AT Com'l. Mil. Com'l. Mil. tPLH tPHL Propagation Delay D N to ON C L = 50pF R L = 500Ω tPZH tPZL tPHZ tPLZ FCT240CT FCT2240CT FCT240DT Com'l. Mil. Com'l. Mil. tPLH tPHL Propagation Delay D N to ON C L = 50pF R L = 500Ω tPZH tPZL tPHZ tPLZ FCT244T FCT2244T FCT244AT FCT2244AT Com'l. Mil. Com'l. Mil. tPLH tPHL Propagation Delay D N to ON C L = 50pF R L = 500Ω tPZH tPZL tPHZ tPLZ FCT244CT FCT2244CT FCT244DT Com'l. Mil. Com'l. Mil. tPLH tPHL Propagation Delay D N to ON C L = 50pF R L = 500Ω tPZH tPZL tPHZ tPLZ

IDT54/74FCT240/244T/AT/CT/DT - 2240/2244T/AT/CT, IDT54/74FCT540/541/2541T/AT/CT FAST CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES 6.8 7 SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT540/541/2541T NOTES: 1. See test circuit and waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 2565 tbl 13 FCT540T/541T FCT2541T FCT540AT/541AT FCT2541AT FCT540CT/541CT FCT2541CT tPLH tPHL Propagation Delay D N to ON FCT540 C L = 50pF R L = 500Ω tPLH tPHL Propagation Delay D N to ON FCT541/2541T tPZH tPZL tPHZ tPLZ

IDT54/74FCT240/244T/AT/CT/DT - 2240/2244T/AT/CT, IDT54/74FCT540/541/2541T/AT/CT FAST CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES 6.8 8 TEST CIRCUITS AND WAVEFORMS TEST CIRCUITS FOR ALL OUTPUTS SWITCH POSITION SET-UP, HOLD AND RELEASE TIMES PULSE WIDTH Test Switch Disable Low Enable Low Closed All Other Tests Open Open Drain DEFINITIONS: C L= Load capacitance: includes jig and probe capacitance. R T = Termination resistance: should be equal to ZOUT of the Pulse Generator. 2565 drw 10 2565 drw 14 2565 drw 11 2565 drw 12 2565 drw 13 Pulse Generator R T D.U.T. V CC VIN C L V OUT 50pF 500Ω 500Ω 7.0V 1.5V 1.5V 1.5V 1.5V DATA INPUT TIMING INPUT ASYNCHRONOUS CONTROL PRESET CLEAR ETC. SYNCHRONOUS CONTROL tSU tH tREM tSU tH HIGH-LOW-HIGH PULSE LOW-HIGH-LOW PULSE tW 1.5V 1.5V SAME PHASE INPUT TRANSITION 1.5V 1.5V VOH tPLH OUTPUT OPPOSITE PHASE INPUT TRANSITION 1.5V tPLH tPHL tPHL VOL CONTROL INPUT 1.5V 3.5V OUTPUT NORMALLY LOW OUTPUT NORMALLY HIGH SWITCH CLOSED SWITCH OPEN VOL 0.3V 0.3V tPLZtPZL tPZH tPHZ 3.5V 1.5V 1.5V ENABLE DISABLE VOH PRESET CLEAR CLOCK ENABLE ETC. PROPAGATION DELAY ENABLE AND DISABLE TIMES 2565 drw 14 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

IDT54/74FCT240/244T/AT/CT/DT - 2240/2244T/AT/CT, IDT54/74FCT540/541/2541T/AT/CT FAST CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES 6.8 9

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Temp. Range XXXX Device Type X Package X Process Blank B P D SO L E PY Q 240T 244T 540T 541T 240AT 244AT 540AT 541AT 240CT 244CT 540CT 541CT 240DT 244DT Commercial MIL-STD-883, Class B Plastic DIP CERDIP Small Outline IC Leadless Chip Carrier CERPACK Shrink Small Outline Package Quarter-size Small Outline Package Inverting Octal Buffer/Line Driver Non-Inverting Octal Buffer/Line Driver Non-Inverting Octal Buffer/Line Driver Inverting Octal Buffer/Line Driver Non-Inverting Octal Buffer/Line Driver –55°C to +125°C 0°C to +70°C FCT X Family Blank High Drive Balanced Drive