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Texas Instruments SN74ACT574DWR — Logic ICs

SN74ACT574DWR D-Type Flip-Flop, 110 MHz, 20-SOIC

MPNSN74ACT574DWR
End of Life

Texas Instruments 74ACT series D-Type flip-flop, SN74ACT574DWR, 8-bit, positive-edge triggered, tri-state non-inverted outputs, 110 MHz clock frequency, 11 ns propagation delay, 4.5V to 5.5V supply, -40°C to 85°C, 20-SOIC package.

$1.12Ref. price · indicative, final on quote
Texas Instruments SN74ACT574DWR datasheet (PDF)
Packaging20-SOIC (0.295", 7.50mm Width)
RoHSROHS3 Compliant
Series74ACT
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

SN74ACT574DWR specifications
ParameterValue
TypeD-Type
Series74ACT
Output typeTri-State, Non-Inverted
Trigger typePositive Edge
MountingSurface Mount
Supply voltage4.5V ~ 5.5V
Current - quiescent4 µA
Current - output high, low24mA, 24mA
Clock frequency110 MHz
Operating temperature-40°C ~ 85°C (TA)
PackageTape & Reel (TR); Cut Tape (CT)
FunctionStandard
Case20-SOIC (0.295\", 7.50mm Width)
Input capacitance4.5 pF
Number of elements1
Number of bits per element8
Max propagation delay @ v, max CL11ns @ 5V, 50pF

Product details

8-bit D-type register with tri-state outputs

The SN74ACT574DWR is an 8-bit D-type flip-flop from TI's 74ACT family, clocked at 110 MHz with a propagation delay of 11 ns into a 50 pF load at 5 V. Positive-edge triggered, it captures data on the rising clock edge and presents it through tri-state, non-inverted outputs. The single 4.5 V to 5.5 V supply rail and 4 µA quiescent current keep the power budget tight.

Housed in a 20-SOIC wide-body (7.50 mm width) package. Surface-mount only. The DWR suffix indicates tape-and-reel or cut-tape delivery.

Timing and drive

Each of the eight outputs sources or sinks 24 mA. The 11 ns propagation delay at 5 V, 50 pF is the specified value.

ROHS3 compliant, no exemptions. No known PCN activity.

Frequently asked questions

Is SN74ACT574DWR RoHS compliant?

Yes, ROHS3 compliant.

Can I use SN74ACT574DWR as a replacement for SN74ACT574DW?

Yes, the DWR suffix indicates tape-and-reel packaging; the die and package footprint are identical to the DW variant. Same 20-SOIC wide layout, same electrical specs.