IDT54FCT645T Datasheet | Integrated Device

FEATURES : - mon features : - Low input and output leakage ≤1µA (max.) - CMOS power levels - True TTL input and output patibility - 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 pliant 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 (-15m A IOH, 64m A IOL) - Features for FCT2245T: - Std., A and C speed grades - Resistor outputs (-15m A IOH, 12m A IOL .) (-12m A IOH, 12m A 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 munication 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 FCT2xxx T parts are plug-in replacements for FCTxxx T 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. 2539 drw 01 The IDT logo is a registered trademark of Integrated Device Technology, Inc. PIN CONFIGURATIONS T/R A0 A1 A2 A3 A4 A5 A6 A7 GND 1 2 3 4 5 6 7 8 9 10 20 19 P20-1 D20-1...