74AS574 Series

Octal D-Type Edge-Triggered Flip-Flops With 3-State Outputs

Catalog(3 parts)

Part	Function	Trigger Type	Max Propagation Delay @ V, Max CL▲▼	Supplier Device Package	Operating Temperature▲▼	Output Type	Current - Output High, Low▲▼	Current - Output High, Low▲▼	Type	Clock Frequency▲▼	Current - Quiescent (Iq)▲▼	Voltage - Supply▲▼	Voltage - Supply▲▼	Number of Bits per Element▲▼	Number of Elements▲▼	Package / Case▲▼	Package / Case	Mounting Type	Package / Case▲▼	Package / Case▲▼
Texas Instruments SN74AS574DW Flip Flop 1 Element D-Type 8 Bit Positive Edge 20-SOIC (0.295", 7.50mm Width)	Standard	Positive Edge	8.999999856484921e-9 s	20-SOIC	70 °C	Tri-State, Non-Inverted	0.014999999664723871 A	0.04800000041723251 A	D-Type	90000000 Hz	0.11599999666213988 A	5.5 V	4.5 V	8 ul	1 ul	0.007493000011891127 m, 0.007499999832361937 m	20-SOIC	Surface Mount
Texas Instruments SN74AS574DWR Flip Flop 1 Element D-Type 8 Bit Positive Edge 20-SOIC (0.295", 7.50mm Width)	Standard	Positive Edge	8.999999856484921e-9 s	20-SOIC	70 °C	Tri-State, Non-Inverted	0.014999999664723871 A	0.04800000041723251 A	D-Type	90000000 Hz	0.11599999666213988 A	5.5 V	4.5 V	8 ul	1 ul	0.007493000011891127 m, 0.007499999832361937 m	20-SOIC	Surface Mount
Texas Instruments SN74AS574N Flip Flop 1 Element D-Type 8 Bit Positive Edge 20-DIP (0.300", 7.62mm)	Standard	Positive Edge	8.999999856484921e-9 s	20-PDIP	70 °C	Tri-State, Non-Inverted	0.014999999664723871 A	0.04800000041723251 A	D-Type	90000000 Hz	0.11599999666213988 A	5.5 V	4.5 V	8 ul	1 ul		20-DIP	Through Hole	0.007619999814778566 m	0.007619999814778566 m

Key Features

• 3-State Buffer-Type Noninverting Outputs Drive Bus Lines DirectlyBus-Structured PinoutBuffered Control InputsSN74ALS575A and ´AS575 Have Synchronous ClearPackage Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), Standard Plastic (N, NT) and Ceramic (J, JT) 300-mil DIPs, and Ceramic Flat (W) Packages3-State Buffer-Type Noninverting Outputs Drive Bus Lines DirectlyBus-Structured PinoutBuffered Control InputsSN74ALS575A and ´AS575 Have Synchronous ClearPackage Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), Standard Plastic (N, NT) and Ceramic (J, JT) 300-mil DIPs, and Ceramic Flat (W) Packages

Description

These octal D-type edge-triggered flip-flops feature 3-state outputs designed specifically for bus driving. They are 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. The SN74ALS575A, SN54AS575, and SN74AS575 may be synchronously cleared by taking the clear () input low. The output-enable () input does not affect internal operations of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state. The SN54ALS574B, SN54AS574, and SN54AS575 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS574B, SN74ALS575A, SN74AS574, and SN74AS575 are characterized for operation from 0°C to 70°C. These octal D-type edge-triggered flip-flops feature 3-state outputs designed specifically for bus driving. They are 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. The SN74ALS575A, SN54AS575, and SN74AS575 may be synchronously cleared by taking the clear () input low. The output-enable () input does not affect internal operations of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state. The SN54ALS574B, SN54AS574, and SN54AS575 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS574B, SN74ALS575A, SN74AS574, and SN74AS575 are characterized for operation from 0°C to 70°C.