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IDT54FCT245DT

Integrated Device Technology
Part Number IDT54FCT245DT
Manufacturer Integrated Device Technology
Description FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS
Published Apr 3, 2005
Detailed Description FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS Integrated Device Technology, Inc. IDT54/74FCT245T/AT/CT/DT - 2245T/AT/CT ID...
Datasheet PDF File IDT54FCT245DT PDF File

IDT54FCT245DT
IDT54FCT245DT

Overview
FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS Integrated Device Technology, Inc.
IDT54/74FCT245T/AT/CT/DT - 2245T/AT/CT IDT54/74FCT640T/AT/CT IDT54/74FCT645T/AT/CT/DT 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 FCT245T/FCT640T/FCT645T: – Std.
, A, C and D speed grades – High drive outputs (-15mA IOH, 64mA IOL) • Features for FCT2245T: – 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 bidirectional transceivers are built using an advanced dual metal CMOS technology.
The FCT245T/ FCT2245T, FCT640T and FCT645T are designed for asynchronous two-way communication between data buses.
The transmit/receive (T/R) input determines the direction of data flow through the bidirectional transceiver.
Transmit (active HIGH) enables data from A ports to B ports, and receive (active LOW) from B ports to A ports.
The output enable (OE) input, when HIGH, disables both A and B ports by placing them in HIGH Z condition.
The FCT245T/FCT2245T and FCT645T transceivers have non-inverting outputs.
The FCT640T has inverting outputs.
The FCT2245T has balanced drive outputs 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 FCT2xxxT parts are plug-in replacements for FCTxxxT parts.
FUNCTIONAL BLOCK DIAGRAM T/R OE A0 B0 A1 B1 A2 B2 A3 B3 A4 B4 A5 B5 A6 B6 A7 B7 FCT245T/2245T, FCT645T are non-inverting options.
FCT640T is the inverting options.
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