Homedatasheet54F245LM

54F245LM Datasheet

Octal Bidirectional Transceiver With Tri-state Outputs
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Description

Features, Applications
54F 74F245 Octal Bidirectional Transceiver with TRI-STATE Outputs

The 'F245 contains eight non-inverting bidirectional buffers with TRI-STATE outputs and is intended for bus-oriented applications Current sinking capability (20 mA Mil) at the A ports and (48 mA Mil) at the B ports 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 Receive (active LOW) enables data from B ports to A ports The Output Enable input when HIGH disables both A and B ports by placing them in a High Z condition

Features

Non-inverting buffers Bidirectional data path A outputs sink (20 mA Mil) B outputs sink (48 mA Mil) Guaranteed 4000V minimum ESD protection

Package Description (0 300 Wide) Molded Dual-In-Line 20-Lead Ceramic Dual-In-Line (0 300 Wide) Molded Small Outline JEDEC (0 300 Wide) Molded Small Outline EIAJ 20-Lead Molded Shrink Small Outline EIAJ Type II 20-Lead Cerpack 20-Lead Ceramic Leadless Chip Carrier Type C

54F245DM (Note 2) 74F245SC (Note 1) 74F245SJ (Note 1) 74F245MSA (Note 1) 54F245FM (Note 2) 54F245LM (Note 2)

Note 1 Devices also available in 13 reel Use suffix e SCX SJX and MSAX Note 2 Military grade device with environmental and burn-in processing Use suffix e DMQB FMQB and LMQB

TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation

Output Enable Input (Active LOW) Transmit Receive Input Side A Inputs or TRI-STATE Outputs Side B Inputs or TRI-STATE Outputs

H e HIGH Voltage Level L e LOW Voltage Level X e Immaterial

If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Storage Temperature Ambient Temperature under Bias Junction Temperature under Bias Plastic VCC Pin Potential to Ground Pin Input Voltage (Note 2) Input Current (Note 2) Voltage Applied to Output in HIGH State (with VCC e 0V) Standard Output TRI-STATE Output

Current Applied to Output in LOW State (Max) ESD Last Passing Voltage (Min)

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

Free Air Ambient Temperature Military Commercial Supply Voltage Military Commercial

Symbol VIH VIL VCD VOH Parameter Min Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage Output HIGH Voltage 54F 10% VCC 54F 10% VCC 74F 10% VCC 74F 10% VCC 74F 5% VCC 54F 10% VCC 54F 10% VCC 74F 10% VCC 74F 10% VCC 54F 74F

Conditions Recognized as a HIGH Signal Recognized as a LOW Signal

VIN 2 7V VIN 7 0V (OE T R) VIN (An Bn) VOUT e VCC (An Bn) IID 9 mA All Other Pins Grounded VIOD 150 mV All Other Pins Grounded VIN (T R OE) VOUT 2 7V (An Bn) VOUT 0 5V (An Bn)

Input HIGH Current 54F Breakdown Test 74F Input HIGH Current 54F Breakdown O) 74F Output HIGH Leakage Current Input Leakage Test Output Leakage Circuit Current Input LOW Current Output Leakage Current Output Leakage Current 54F 74F


Features

Parameters

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Manufacturer information

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