SN74ALS564B Series

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

Catalog

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

Catalog

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

Key Features

• 3-State Buffer-Type Inverting Outputs Drive Bus Lines DirectlyBus-Structured PinoutBuffered Control InputsPackage Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), Standard Plastic (N) and Ceramic (J) 300-mil DIPs, and Ceramic Flat (W) Packages3-State Buffer-Type Inverting Outputs Drive Bus Lines DirectlyBus-Structured PinoutBuffered Control InputsPackage Options Include Plastic Small-Outline (DW) Packages, Ceramic Chip Carriers (FK), Standard Plastic (N) and Ceramic (J) 300-mil DIPs, and Ceramic Flat (W) Packages

Description

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. The SN54ALS564B is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS564B is characterized for operation from 0°C to 70°C. 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. The SN54ALS564B is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS564B is characterized for operation from 0°C to 70°C.