|Category||Interface and Interconnect => Transceivers|
|Description||Octal Bidirectional Transceiver With Tri-statee Outputs|
|Company||National Semiconductor Corporation|
|Datasheet||Download 74F545SJ datasheet
|Cross ref.||Similar parts: SN74ABT245B, SN74ACT245, SN74ALS245A, SN74ALS623A, SN74ALS641A, SN74ALS641A-1, SN74ALS645A, SN74AS245, SN74BCT2245, SN74BCT245|
|54F 74F545 Octal Bidirectional Transceiver with TRI-STATE Outputs
The an 8-bit TRI-STATE high-speed transceiver It provides bidirectional drive for bus-oriented microprocessor and digital communications systems Straight through bidirectional transceivers are featured with (20 mA Mil) bus drive capability on the A ports and (48 mA Mil) bus drive capability on the B ports One input Transmit Receive (T R) determines the direction of logic signals through the bidirectional transceiver Transmit enables data from A ports to B ports Receive enables data from B ports to A ports The Output Enable input disables both A and B ports by placing them in a TRI-STATE conditionFeatures
Higher drive than 8304 8-bit bidirectional data flow reduces system package count TRI-STATE inputs outputs for interfacing with bus-oriented systems (20 mA Mil) and (48 mA Mil) bus drive capability on A and B ports respectively Transmit Receive and Output Enable simplify control logic Guaranteed 4000V minimum ESD protection Pin for Pin compatible with Intel 8286
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 Cerpack 20-Lead Ceramic Leadless Chip Carrier Type C
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 CorporationTruth Table Inputs OE Bus B Data to Bus A Bus A Data to Bus B High Z
H e HIGH Voltage Level L e LOW Voltage Level X e Immaterial Z e High Impedance
Output Enable Input (Active LOW) 2 mA Transmit Receive Input 2 mA Side A TRI-STATE Inputs b650 mA TRI-STATE Outputs mA (20 mA) Side B TRI-STATE Inputs b650 mA TRI-STATE Outputs mA (48 mA)
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 inputsFree 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 54F 10% VCC 74F 10% VCC 74F 10% VCC 74F 10% VCC 74F 5% VCC 74F 5% VCC 54F 10% VCC 54F 10% VCC 74F 10% VCC 74F 10% VCC 54F 74FConditions Recognized as a HIGH Signal Recognized as a LOW Signal
mA (An) 3 mA (An) 12 mA (Bn) 1 mA (An) 3 mA (An) 15 mA (Bn) 1 mA (An) 3 mA (An)
Input HIGH Current Input HIGH Current Breakdown Test Input HIGH Current Breakdown (I O) Output HIGH Leakage Current Input Leakage Test Output Leakage Circuit Current Input LOW Current
VIN 2 7V (OE T R) VIN 7 0V (OE T R) VIN 5 5V (An Bn) VOUT e VCC IID 9 mA All Other Pins Grounded VIOD 150 mV All Other Pins Grounded VIN 0 5V (OE T R) VOUT 2 7V (An Bn) VOUT 0 5V (An Bn) VOUT e 0V (An) VOUT e 0V (Bn)Output Leakage Current Output Leakage Current Output Short-Circuit Current
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