Details, datasheet, quote on part number: 74AC245
CategoryLogic => Bus Interface => Bus Oriented Circuits
TitleBus Oriented Circuits
DescriptionOctal Bidirectional Transceiver With 3-STATE Inputs/ Outputs
CompanyFairchild Semiconductor
DatasheetDownload 74AC245 datasheet
Cross ref.Similar parts: 74AC245B, 74AC245D, 74AC245M, 74AC245MTR, 74AC245PW, 74AC245TTR, CD54AC245F, CD54AC245F/3A, CD54AC245F3A, CD54AC245FX
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Features, Applications

The AC/ACT245 contains eight non-inverting bidirectional buffers with 3-STATE outputs and is intended for bus-oriented applications. Current sinking capability mA at both the A and 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.


s ICC and IOZ reduced 50% s Noninverting buffers s Bidirectional data path s A and B outputs source/sink s ACT245 has TTL-compatible inputs

Order Number 74ACT245MTC 74ACT245PC Package Number MTC20 N20A Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Body 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide Body 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide

Device also available in Tape and Reel. Specify by appending suffix letter "X" to the ordering code.

Pin Description Names OE T/R A0A7 B0B7 Output Enable Input Transmit/Receive Input Side A 3-STATE Inputs or 3-STATE Outputs Side B 3-STATE Inputs or 3-STATE Outputs

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

Supply Voltage (VCC) DC Input Diode Current (IIK) VI = VCC 0.5V DC Input Voltage (VI) DC Output Diode Current (IOK) VO = VCC 0.5V DC Output Voltage (VO) DC Output Source or Sink Current (IO) DC VCC or Ground Current per Output Pin (ICC or IGND) Storage Temperature (TSTG) Junction Temperature (TJ) PDIP -0.5V to VCC -0.5V to VCC to +7.0V

Supply Voltage (VCC) AC ACT Input Voltage (VI) Output Voltage (VO) Operating Temperature (TA) Minimum Input Edge Rate (V/t) AC Devices VIN from 70% of VCC 4.5V, 5.5V Minimum Input Edge Rate (V/t) ACT Devices VIN from to 2.0V VCC 5.5V 125 mV/ns

Note 1: Absolute maximum ratings are those values beyond which damage to the device may occur. The databook specifications should be met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading variables. Fairchild does not recommend operation of FACT circuits outside databook specifications.

Note 2: All outputs loaded; thresholds on input associated with output under test. Note 3: Maximum test duration 2.0 ms, one output loaded at a time. Note 4: IIN and ICC @ 3.0V are guaranteed to be less than or equal to the respective limit @ 5.5V VCC.


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