(China (Mainland))
Product Summary
The SN74HCT244DWR is an octal buffer and line driver with 3-state outputs. The device is designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The SN74HCT244DWR is organized as two 4-bit buffers/drivers with separate output-enable (OE) inputs. When OEis low, the device passes noninverted data from the A inputs to the Y outputs. When OEis high, the outputs are in the high-impedance state.
Parametrics
SN74HCT244DWR absolute maximum ratings: (1)Supply voltage range, VCC: -0.5 V to 7 V; (2)Input clamp current, IIK(VI< 0 or VI> VCC): ±20 mA; (3)Output clamp current, IOK(VO< 0 or VO> VCC): ±20 mA; (4)Continuous output current, IO(VO= 0 to VCC): ±35 mA; (5)Continuous current through VCCor GND: ±70 mA; (6)Package thermal impedance, θJA: DB package 70℃/W; DW package 58℃/W; N package 69℃/W; NS package 60℃/W; PW package 83℃/W; (7)Storage temperature range, Tstg: -65℃ to 150℃.
Features
SN74HCT244DWR features: (1)Operating Voltage Range of 4.5 V to 5.5 V; (2)High-Current Outputs Drive Up To 15 LSTTL Loads; (3)Low Power Consumption, 80-μA Max ICC; (4)Typical tpd = 13 ns; (5)±6-mA Output Drive at 5 V; (6)Low Input Current of 1 μA Max; (7)Inputs Are TTL-Voltage Compatible; (8)3-State Outputs Drive Bus Lines or Buffer Memory Address Registers.
Diagrams
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 SN74HCT244DWR |
Texas Instruments |
Buffers & Line Drivers Tri-State Octal |
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SN74HCT244DWRE4 |
Texas Instruments |
Buffers & Line Drivers Octal Buff/Line Drvr W/3-State Otpt |
Data Sheet |
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SN74HCT244DWRG4 |
Texas Instruments |
Buffers & Line Drivers Octal Buffers And Line Drivers |
Data Sheet |
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