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Part Number: 74ETL16245

 

 

 

 

Description: The 54/74ETL16245 contains sixteen non-inverting bidirectional buffers with TRI-STATEÉ outputs ...


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74ETL16245 General Description


The 54/74ETL16245 contains sixteen non-inverting bidirectional buffers with TRI-STATEÉ outputs designed with incident wave switching, live insertion support and enhanced noise margin for TTL backplane applications.

Both the A and B ports include a bus hold circuit to latch the output to the value last forced on that pin.

The B port of this device includes 25X series output resistors, which minimize undershoot and ringing.

74ETL16245 Maximum Ratings

Storage Temperature........  -65 to +150
Ambient Temperature under Bias..  -55 to +125
Junction Temperature under Bias
Ceramic ............... -55 to +175
Plastic ................ -55 to +150
VCC Pin Potential to
Ground Pin .............-0.5V to +7.0V
Input Voltage (Note 2) .......-0.5V to +7.0V
Input Current (Note 2) ...... -50 mA to +5.0 mA
Voltage Applied to Any Output
in the Disabled or
Power-off State ...........-0.5V to 5.5V
in the HIGH State ............-0.5V to VCC
Current Applied to Output
in LOW State (Max) ..............128 mA
DC Latchup Source Current .........  -500 mA
Over Voltage Latchup (I/O) ............10V

Note 1: Absolute maximum ratings are values beyond which the device may be damaged or have its useful life impaired. Functional operation under these conditions is not implied.
Note 2: Either voltage limit or current limit is sufficient to protect inputs.

74ETL16245 Features

· Supports the VME64 ETL specification
· Functionally and pin compatible with industry standard TTL 16245 SSOP pinout
· Improved TTL-compatible input threshold range
· High drive TTL-compatible outputs (IOH e b60 mA, IOL e 90 mA)
· Supports 25X incident wave switching on the A port
· BiCMOS design significantly reduces power dissipation.
· Distributed VCC and GND pin configuration minimizes high-speed switching noise
· 25X series-dampening resistor on B-port
· Available in 48-pin SSOP and ceramic flatpak
· Guaranteed output skew
· Guaranteed simultaneous switching noise level and dynamic threshold performance
· Guaranteed latchup protection

74ETL16245 Connection Diagram

74ETL16245  Connection Diagram

74ETL16245 datasheet


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