Specification	SN74ALS564BNSR

Clock Frequency	30 MHz
Current - Output High, Low [custom]	24 mA
Current - Output High, Low [custom]	2.6 mA
Current - Quiescent (Iq)	18 mA
Function	Standard
Max Propagation Delay @ V, Max CL	14 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, Inverted
Package / Case	20-SOIC
Package / Case	0.209 "
Package / Case	5.3 mm
Supplier Device Package	20-SO
Trigger Type	Positive Edge
Type	D-Type
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	4.5 V

SN74ALS564B Series

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

Part	Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Supplier Device Package	Max Propagation Delay @ V, Max CL	Package / Case	Package / Case	Package / Case	Number of Elements	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Function	Trigger Type	Operating Temperature [Max]	Number of Bits per Element	Clock Frequency	Output Type	Mounting Type	Current - Quiescent (Iq)	Package / Case [y]	Package / Case [y]
Texas Instruments SN74ALS564BNSR	D-Type	4.5 V	5.5 V	20-SO	14 ns	20-SOIC	0.209 "	5.3 mm	1	24 mA	2.6 mA	Standard	Positive Edge	70 °C	8	30 MHz	Tri-State Inverted	Surface Mount	18 mA
Texas Instruments SN74ALS564BN	D-Type	4.5 V	5.5 V	20-PDIP	14 ns	20-DIP	0.3 in	7.62 mm	1	24 mA	2.6 mA	Standard	Positive Edge	70 °C	8	30 MHz	Tri-State Inverted	Through Hole	18 mA
Texas Instruments SN74ALS564BDW	D-Type	4.5 V	5.5 V	20-SOIC	14 ns	20-SOIC			1	24 mA	2.6 mA	Standard	Positive Edge	70 °C	8	30 MHz	Tri-State Inverted	Surface Mount	18 mA	0.295 in	7.5 mm

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	$ 5.52
		10	$ 4.96
		25	$ 4.69
		100	$ 4.06
		250	$ 3.85
		500	$ 3.46
		1000	$ 2.92
	Digi-Reel®	1	$ 5.52
		10	$ 4.96
		25	$ 4.69
		100	$ 4.06
		250	$ 3.85
		500	$ 3.46
		1000	$ 2.92
	Tape & Reel (TR)	2000	$ 2.77
Texas Instruments	LARGE T&R	1	$ 4.36
		100	$ 3.56
		250	$ 2.79
		1000	$ 2.37

Description

General part information

SN74ALS564B Series

These octal D-type edge-triggered flip-flops feature inverting 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 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