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PI74FCT2541TL Dataheets PDF



Part Number PI74FCT2541TL
Manufacturers Pericom Semiconductor Corporation
Logo Pericom Semiconductor Corporation
Description Fast CMOS Octal Buffer/Line Drivers
Datasheet PI74FCT2541TL DatasheetPI74FCT2541TL Datasheet (PDF)

PI74FCT244T/2244T PI74FCT541T/2541T Fast CMOS Octal Buffer/Line Drivers Features • PI74FCT244/541T and PI74FCT2244/2541T are pin compatible with bipolar Fast Series at a higher speed and lower power consumption • 25Ω series resistor on all outputs (FCT2XXX only) • TTL input and output levels • Low ground bounce outputs • Extremely low static power • Hysteresis on all inputs • Industrial operating temperature range: –40°C to +85°C • Packaging (Pb-free & Green available): – 20-pin 173-mil wide pla.

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PI74FCT244T/2244T PI74FCT541T/2541T Fast CMOS Octal Buffer/Line Drivers Features • PI74FCT244/541T and PI74FCT2244/2541T are pin compatible with bipolar Fast Series at a higher speed and lower power consumption • 25Ω series resistor on all outputs (FCT2XXX only) • TTL input and output levels • Low ground bounce outputs • Extremely low static power • Hysteresis on all inputs • Industrial operating temperature range: –40°C to +85°C • Packaging (Pb-free & Green available): – 20-pin 173-mil wide plastic TSSOP (L) – 20-pin 209-mil wide plastic SSOP (H) – 20-pin 150-mil wide plastic QSOP (Q) – 20-pin 150-mil wide plastic TQSOP (R) – 20-pin 300-mil wide plastic SOIC (S) • Device models available upon request Description Pericom Semiconductor’s PI74FCT244T/541T and P174FCT2244/ 2541T are 8-bit wide driver circuits, designed to be used in applications requiring high-speed and high-output drive. Ideal applications would include bus drivers, memory drivers, address drivers, and system clock drivers. The PI74FCT541 and 2541T provide similar driver capabilities, but have their pins physically grouped by function. All inputs are located on one side of the package, while outputs are on the opposite side, allowing for a much simpler and denser board layout. All PI74FCT2XXX devices have a built-in 25Ω series resistor on all outputs to reduce noise because of reflections, thus eliminating the need for an external terminating resistor. Block Diagrams PI74FCT244/2244T OEA OEB* DA0 OB0 DA1 OB1 OA0 DB0 OA1 DB1 OA2 DB2 OA3 DB3 PI74FCT541/2541T OEA OEB D0 O0 D1 D2 D3 D4 D5 D6 D7 O1 O2 O3 DA2 OB2 DA3 OB3 O4 O5 O6 O7 *OEB for 244T, 1 PS2011C 09/22/04 PI74FCT244T/2244T PI74FCT541T/2541T Octal Buffer/Line Drivers Product Pin Description Pin Name OEA, OEB OEB(1) Dxx Oxx GND VCC Description 3-State Output Enable Inputs (Active LOW) 3-State Output Enable Input (Active HIGH) Inputs Outputs Ground Power Truth Table OEA L L H Inputs(1) OEB OEB(2) L H L H H L Outputs(1) D L H X 244 L H Z 541 L H Z Note: 1. H = High Voltage Level, X = Don't Care, L = Low Voltage Level, Z = High Impedance 2. OEB for 241 only. PI74FCT241/2241/244/2244T Pin Configuration OEA DA0 OB0 DA1 OB1 DA2 OB2 DA3 OB3 GND 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 PI74FCT540/541/2541T Pin Configuration OEA D0 D1 D2 D3 D4 D5 D6 D7 GND 1 2 20-Pin 3 H20 4 L20 5 P20 6 7 Q20 R20 8 S20 9 10 20 19 18 17 16 15 14 13 12 11 20-Pin H20 L20 P20 Q20 R20 S20 Vcc OEB OA0 DB0 OA1 DB1 OA2 DB2 OA3 DB3 Vcc OEB O0* O1* O2* O3* O4* O5* O6* O7* 2 PS2011D 09/22/04 PI74FCT244T/2244T PI74FCT541T/2541T Octal Buffer/Line Drivers Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature ............................................................. –65°C to +150°C Ambient Temperature with Power Applied .............................-40°C to +85°C Supply Voltage to Ground Potential (Inputs & Vcc Only) ...... –0.5V to +7.0V Supply Voltage to Ground Potential (Outputs & D/O Only) ... –0.5V to +7.0V DC Input Voltage ..................................................................... –0.5V to +7.0V DC Output Current................................................................................ 120mA Power Dissipation .................................................................................... 0.5W Note: Stresses greater than those listed under 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. DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 5.0V ± 5%) Parameters VOH VOL VOL VIH VIL IIH IIL IOZH IOZL VIK IOFF IOS VH Description Output HIGH Voltage Output LOW Current Output LOW Current Input HIGH Voltage Input LOW Voltage Input HIGH Current Input LOW Current High Impedance Output Current Clamp Diode Voltage Power Down Disable Short Circuit Current Input Hysteresis Test Conditions(1) VCC = Min., VIN = VIH or VIL VCC = Min., VIN = VIH or VIL VCC = Min., VIN = VIH or VIL Guaranteed Logic HIGH Level Guaranteed Logic LOW Level VCC = Max. VCC = Max. VCC = MAX. VCC = Min., IIN = –18mA VCC = GND, VOUT = 4.5V VCC = Max.(3), VOUT = GND — –60 VIN = VCC VIN = GND VOUT = 2.7V VOUT = 0.5V –0.7 — –120 200 IOH = –15.0mA IOL = 64mA IOL = 12mA (25ΩSeries) 2.0 0.8 1 –1 1 –1 –1.2 100 V µA mA µA Min. 2.4 Typ(2) 3.0 0.3 0.3 0.55 0.50 V Max. Units Capacitance (TA = 25°C, f = 1 MHz) Parameters(4) CIN COUT Description Input Capacitance Output Capacitance Test Conditions VIN = 0V VOUT = 0V Typ. 6 8 Max. 10 12 Units pF Notes: 1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type. 2. Typical values are at Vcc = 5.0V, +25°C ambient and maxi.


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