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 ...
74FCT640: 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 a...
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Features: Std., A and C speed gradesLow input and output leakage ?1A (max.)CMOS power levelsTrue T...
Features: Std., A and C speed gradesLow input and output leakage ?1A (max.)CMOS power levelsTrue T...
Symbol | Rating | Commercial | Military | Unit |
VTERM(2) | Terminal Voltage with Respect to GND |
0.5 to +7.0 | 0.5 to +7.0 | V |
TERM(3) | Terminal Volta with Respect to GND |
0.5 to VCC | 0.5 to VCC | V |
TA | Operating Temperature | 0 to +70 | 55 to +125 | °C |
TBIAS | Temperature Under Bias | 55 to +125 | 65 to +135 | °C |
TSTG | Storage Temperature | 55 to +125 | 65 to +150 | °C |
PT | Power Dissipation | 0.5 | 0.5 | W |
IOUT | DC Output Current | 120 | 120 | mA |
Symbol | Rating | Commercial | Military | Unit |
VTERM(2) | Terminal Voltage with Respect to GND |
0.5 to +7.0 | 0.5 to +7.0 | V |
TERM(3) | Terminal Volta with Respect to GND |
0.5 to VCC | 0.5 to VCC | V |
TA | Operating Temperature | 0 to +70 | 55 to +125 | |
TBIAS | Temperature Under Bias | 55 to +125 | 65 to +135 | |
TSTG | Storage Temperature | 55 to +125 | 65 to +150 | |
PT | Power Dissipation | 0.5 | 0.5 | W |
IOUT | DC Output Current | 120 | 120 | mA |
The IDT octal bidirectional transceivers are of the 74FCT640 built using an advanced dual metal CMOS technology. The I74FCT640 is designedfor asynchronous two-way communication between data buses. The transmit/receive (T/R) input deter-mines the direction of data flow through the bidirectionaltransceiver. Transmit (active HIGH) enables data from Aports to B ports, and receive (active LOW) from B ports to Aports. The output enable (OE) input, when HIGH, disablesboth A and B ports byplacing them in High-Z condition. The IDT54/74FCT245/A/C and IDT54/74FCT645/A/C transceivers have non-inverting outputs. The 74FCT640 has inverting outputs.