Specification	SN74AS574DWR

Clock Frequency	90 MHz
Current - Output High, Low [custom]	15 mA
Current - Output High, Low [custom]	48 mA
Current - Quiescent (Iq)	116 mA
Function	Standard
Max Propagation Delay @ V, Max CL	9 ns
Mounting Type	Surface Mount
Number of Bits per Element	8
Number of Elements	1
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Output Type	Tri-State, Non-Inverted
Package / Case	20-SOIC
Package / Case [y]	0.295 in
Package / Case [y]	7.5 mm
Supplier Device Package	20-SOIC
Trigger Type	Positive Edge
Type	D-Type
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	4.5 V

SN74AS574 Series

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

Part	Mounting Type	Number of Bits per Element	Function	Trigger Type	Output Type	Operating Temperature [Max]	Operating Temperature [Min]	Current - Quiescent (Iq)	Clock Frequency	Supplier Device Package	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Voltage - Supply [Min]	Voltage - Supply [Max]	Type	Package / Case	Package / Case [y]	Package / Case [y]	Number of Elements	Max Propagation Delay @ V, Max CL	Package / Case	Package / Case
Texas Instruments SN74AS574DWR	Surface Mount	8	Standard	Positive Edge	Non-Inverted Tri-State	70 °C	0 °C	116 mA	90 MHz	20-SOIC	15 mA	48 mA	4.5 V	5.5 V	D-Type	20-SOIC	0.295 in	7.5 mm	1	9 ns
Texas Instruments SN74AS574N	Through Hole	8	Standard	Positive Edge	Non-Inverted Tri-State	70 °C	0 °C	116 mA	90 MHz	20-PDIP	15 mA	48 mA	4.5 V	5.5 V	D-Type	20-DIP			1	9 ns	7.62 mm	0.3 in

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 3.93
		10	$ 3.53
		25	$ 3.33
		100	$ 2.89
		250	$ 2.74
		500	$ 2.46
		1000	$ 2.07
	Digi-Reel®	1	$ 3.93
		10	$ 3.53
		25	$ 3.33
		100	$ 2.89
		250	$ 2.74
		500	$ 2.46
		1000	$ 2.07
	Tape & Reel (TR)	2000	$ 1.83
Texas Instruments	LARGE T&R	1	$ 3.26
		100	$ 2.86
		250	$ 2.00
		1000	$ 1.61

Description

General part information

SN74AS574 Series

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.

Documents

Technical documentation and resources

Octal D-Type Edge-Triggered Flip-Flops With 3-State Outputs datasheet (Rev. B)

Data sheet