(China (Mainland))
Product Summary
The SN74HCT574DWR is a D-type flip-flop. This octal edge-triggered D-type flip-flop features 3-state outputs designed specifically for bus driving. The SN74HCT574DWR is particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. The eight flip-flops enter data on the low-to-high transition of the clock (CLK) input. A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components.
Parametrics
SN74HCT574DWR 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 VCC or GND: ±70 mA; (6)Package thermal impedance, θJA (see Note 2): 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
SN74HCT574DWR features: (1)Operating Voltage Range of 4.5 V to 5.5 V; (2)High-Current 3-State Noninverting Outputs Drive Bus Lines Directly or Up To 15 LSTTL Loads; (3)Low Power Consumption, 80-μA Max ICC; (4)Typical tpd = 22 ns; (5)±6-mA Output Drive at 5 V; (6)Low Input Current of 1 μA Max; (7)Inputs Are TTL-Voltage Compatible; (8)Bus-Structured Pinout.
Diagrams
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 SN74HCT574DWR |
Texas Instruments |
Flip Flops Octal Edge-Trig D-Ty F-F W/3-State Otpt |
Data Sheet |
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SN74HCT574DWRE4 |
Texas Instruments |
Flip Flops Octal Edge-Trig D-Ty F-F W/3-State Otpt |
Data Sheet |
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SN74HCT574DWRG4 |
Texas Instruments |
Flip Flops Octal Edge Trigred DType FlipFlop |
Data Sheet |
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