DatasheetsPDF.com

IDT74FCT245 Dataheets PDF



Part Number IDT74FCT245
Manufacturers Integrated Device Tech
Logo Integrated Device Tech
Description FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS
Datasheet IDT74FCT245 DatasheetIDT74FCT245 Datasheet (PDF)

® FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS DESCRIPTION: IDT54/74FCT245/A/C IDT54/74FCT640/A/C IDT54/74FCT645/A/C Integrated Device Technology, Inc. FEATURES: • IDT54/74FCT245/640/645 equivalent to FAST™ speed and drive • IDT54/74FCT245A/640A/645A 25% faster than FAST • IDT54/74FCT245C/640C/645C 40% faster than FAST • TTL input and output level compatible • CMOS output level compatible • IOL = 64mA (commercial) and 48mA (military) • Input current levels only 5µA max. • CMOS power levels (2..

  IDT74FCT245   IDT74FCT245



Document
® FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS DESCRIPTION: IDT54/74FCT245/A/C IDT54/74FCT640/A/C IDT54/74FCT645/A/C Integrated Device Technology, Inc. FEATURES: • IDT54/74FCT245/640/645 equivalent to FAST™ speed and drive • IDT54/74FCT245A/640A/645A 25% faster than FAST • IDT54/74FCT245C/640C/645C 40% faster than FAST • TTL input and output level compatible • CMOS output level compatible • IOL = 64mA (commercial) and 48mA (military) • Input current levels only 5µA max. • CMOS power levels (2.5mW typical static) • Direction control and over-riding 3-state control • Product available in Radiation Tolerant and Radiation Enhanced versions • Military product compliant to MIL-STD-883, Class B and DESC listed • Meets or exceeds JEDEC Standard 18 specifications The IDT octal bidirectional transceivers are built using an advanced dual metal CMOS technology. The IDT54/ 74FCT245/A/C, IDT54/74FCT640/A/C and IDT54/74FCT645/ A/C 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 IDT54/74FCT245/A/C and IDT54/74FCT645/A/C transceivers have non-inverting outputs. The IDT54/ 74FCT640/A/C has inverting outputs. FUNCTIONAL BLOCK DIAGRAM T/R OE A0 B0 A1 B1 A2 B2 A3 B3 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 18 P20-1 D20-1 SO20-2 & E20-1 17 16 15 14 13 12 11 Vcc OE B0 B1 B2 B3 B4 B5 B6 B7 DIP/SOIC/CERPACK TOP VIEW INDEX B4 A5 B5 A6 B6 A7 B7 NOTES: 1. FCT245, 645 are noninverting options. 2. FCT640 is the inverting option. 2534 drw 02 A2 A3 A4 A5 A6 A1 A0 T/R Vcc OE 3 2 4 5 6 7 8 1 20 19 18 17 16 15 14 9 10 11 12 13 A4 L20-2 B0 B1 B2 B3 B4 The IDT logo is a registered trademark of Integrated Device Technology, Inc. FAST is a registered trademark of National Semiconductor Co. MILITARY AND COMMERCIAL TEMPERATURE RANGES ©1992 Integrated Device Technology, Inc. A7 GND B7 B6 B5 LCC TOP VIEW 2534 drw 01 MAY 1992 DSC-4201/3 7.9 1 IDT54/74FCT245/A/C, IDT54/74FCT640/A/C, IDT54/74FCT645/A/C FAST CMOS OCTAL BIDIRECTIONAL TRANSCEIVERS MILITARY AND COMMERCIAL TEMPERATURE RANGES PIN DESCRIPTION Pin Names Description Output Enable Input (Active LOW) Transmit/Receive Input Side A Inputs or 3-State Outputs Side B Inputs or 3-State Outputs 2534 tbl 05 FUNCTION TABLE(2) Inputs OE T/R A0–A7 B0–B7 OE L L H T/R L H X Outputs Bus B Data to Bus A(1) Bus A Data to Bus B(1) High Z State 2534 tbl 06 NOTES: 1. 640 is inverting from input to output. 2. H = HIGH Voltage Level L = LOW Voltage Level X = Don’t Care ABSOLUTE MAXIMUM RATINGS(1) Symbol Rating VTERM(2) Terminal Voltage with Respect to GND VTERM(3) Terminal Voltage with Respect to GND TA Operating Temperature TBIAS Temperat.


IDT74FCT241C IDT74FCT245 IDT74FCT245A


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)