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IDT74FCT2541T Dataheets PDF



Part Number IDT74FCT2541T
Manufacturers Integrated Device Tech
Logo Integrated Device Tech
Description FAST CMOS OCTAL BUFFER/LINE DRIVERS
Datasheet IDT74FCT2541T DatasheetIDT74FCT2541T Datasheet (PDF)

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 IDT54/74FCT240T/AT/CT/DT - 2240T/AT/CT FAST CMOS OCTAL BUFFER/LINE DRIVERS IDT54/74FCT244T/AT/CT/DT - 2244T/AT/CT IDT54/74FCT540T/AT/CT IDT54/74FCT541/2541T/AT/CT Integrated Device Technology, Inc. FEATURES: • Common features: – Low input and output leakage ≤1µA (max.) – CMOS power levels – True TTL input and output compatibility – VOH .

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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 IDT54/74FCT240T/AT/CT/DT - 2240T/AT/CT FAST CMOS OCTAL BUFFER/LINE DRIVERS IDT54/74FCT244T/AT/CT/DT - 2244T/AT/CT IDT54/74FCT540T/AT/CT IDT54/74FCT541/2541T/AT/CT Integrated Device Technology, Inc. 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 IOH, 64mA IOL) • Features for FCT2240T/FCT2244T/FCT2541T: – Std., A and C speed grades – Resistor outputs (-15mA IOH, 12mA IOL Com.) (-12mA IOH, 12mA IOL Mil.) – Reduced system switching noise 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 transmitter/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 opposite sides of the package. This pinout arrangement makes these devices especially useful as output ports for microprocessors 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 resistors. FCT2xxxT parts are plug-in replacements for FCTxxxT parts. FUNCTIONAL BLOCK DIAGRAMS OE A OE B DA0 OE A DA0 OB0 DA1 OB1 DA2 OB2 DA3 OB3 OE A OE B OA0 DB0 OA1 DB1 OA2 DB2 OA3 DB3 D0 D1 D2 D3 D4 D5 D6 D7 OE B O0 O1 O2 O3 O4 O5 O6 O7 OA0 DB0 OB0 DA1 OA1 DB1 OB1 DA2 OA2 DB2 OB2 DA3 OB3 OA3 DB3 FCT240/2240T FCT244/2244T FCT540/541/2541T *Logic diagram shown for 'FCT540. 'FCT541/2541T is the non-inverting option. 2565 drw 01 2565 drw 02 2565 drw 03 The IDT logo is a registered trademark of Integrated Device Technology, Inc. MILITARY AND COMMERCIAL TEMPERATURE RANGES ©1996 Integrated Device Technology, Inc. DECEMBER 1995 DSC-2565/6 6.8 6.8 1 1 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 PIN CONFIGURATIONS FCT240/2240T OEA DA0 OB0 DA1 OB1 DA2 OB2 DA3 OB3 GND 1 2 3 4 5 6 7 8 9 10 P20-1 D20-1 SO20-2 SO20-7 SO20-8 & E20-1 20 19 18 17 16 15 14 13 12 11 VCC OEB OA0 DB0 OA1 DB1 OA2 DB2 OA3 DB3 DA1 OB1 DA2 OB2 DA3 4 5 6 7 8 L20-2 3 2 1 OEA V CC 20 19 18 17 16 15 OEB DA 0 INDEX OB 0 OA0 DB0 OA1 DB1 OA2 14 9 10 11 12 13 GND OB3 DB 3 OA3 DIP/SOIC/SSOP/QSOP/CERPACK TOP VIEW 2565 drw 04 LCC TOP VIEW 2565 drw 07 FCT244/2244T OEA DA 0 OB0 DA 1 OB1 DA 2 OB2 DA 3 OB3 GND 1 2 3 4 5 6 7 8 9 10 20 19 P20-1 D20-1 SO20-2 SO20-7 SO20-8 & E20-1 18 17 16 15 14 13 12 11 VCC OEB OA0 DB 0 OA1 DB 1 OA2 DB 2 OA3 DB 3 3 2 DA 1 OB1 DA 2 OB2 DA 3 4 5 6 7 8 L20-2 1 20 19 18 17 16 15 14 9 10 11 12 13 OB3 GND DB 3 OA3 DB 2 DA 0 INDEX OEB* OEA VCC OB0 DB 2 OA0 DB 0 OA1 DB 1 OA2 DIP/SOIC/SSOP/QSOP/CERPACK TOP VIEW 2565 drw 05 LCC TOP VIEW 2565 drw 08 FCT540/541/2541T OEA V CC D1 D0 OEA D0 D1 D2 D3 D4 D5 D6 D7 GND 1 2 3 4 5 6 7 8 9 10 P20-1 D20-1 SO20-2 SO20-8 & E20-1 20 19 18 17 16 15 14 13 12 11 VCC OEB O 0* O 1* O 2* O 3* O 4* O 5* O 6* O 7* 3 2 D2 D3 D4 D5 D6 4 5 6 7 8 1 20 19 18 17 16 15 OEB INDEX O 0* O 1* O 2* O 3* O 4* L20-2 14 9 10 11 12 13 D7 GND O 6* O 7* O 5* DIP/SOIC/QSOP/CERPACK TOP VIEW *Ox for 540, Ox for 541/2541T 2565 drw 06 LCC TOP VIEW 2565 drw 09 6.8 2 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 PIN DESCRIPTION Pin Names OEA, OEB Dxx Oxx Description 3–State Output Enable Inputs (Active LOW) Inputs Outputs 2565 tbl 01 FUNCTION TABLE Inputs(1) OEA L L H OEB L L H D L H X 240 H L Z Outputs(1) 244 540 L H 541 L H Z L Z H Z 2565 tbl 02 NOTES: 1. H = High Voltage Level X = Don’t Care L = Low Voltage Level Z = High Impedance ABSOLUTE MAXIMUM RATINGS(1) Symbol Rating Commercial VTERM(2) Terminal Voltage –0.5 to +7.0 with Respect to GND VTERM(3) Terminal Voltage –0.5 to with Respect to VCC +0.5 GND TA Operating 0 to +70 Temperature TBIAS Temperature –55 to +125 Under Bias TSTG Storage –55 to +125 Temperature PT Power Dissipation 0.5 I OUT DC Output Current –60 to +12.


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