HomedatasheetSN74LVC574APWR

SN74LVC574APWR Datasheet

Logic - Flip Flops
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Description

The SN74LVC574APWR octal edge-triggered D-type flip-flop is designed for 2.7-V to 3.6-V VCC operation, and the SN74LVC574A octal edge-triggered D-type flip-flop is designed for 1.65-V to 3.6-V VCC operation.These devices feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.On the positive transition of the clock (CLK) input, the Q outputs are set to the logic levels at the data (D) inputs.A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components. OE does not affect the 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.These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators in a mixed 3.3-V/5-V system environment. SN74LVC574APWR Features &bull; Operate From 1.65 V to 3.6 V&bull; Inputs Accept Voltages to 5.5 V&bull; Specified From &minus;40&deg;C to 85&deg;C, &minus;40&deg;C to 125&deg;C, and &minus;55&deg;C to 125&deg;C&bull; Max tpd of 7 ns at 3.3 V&bull; Typical VOLP (Output Ground Bounce) <0.8 V at VCC = 3.3 V, TA = 25&deg;C&bull; Typical VOHV (Output VOH Undershoot) >2 V at VCC = 3.3 V, TA = 25&deg;C&bull; Support Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V VCC)&bull; Ioff Supports Partial-Power-Down Mode Operation&bull; Latch-Up Performance Exceeds 250 mA Per JESD 17&bull; ESD Protection Exceeds JESD 22 &minus; 2000-V Human-Body Model (A114-A) &minus; 200-V Machine Model (A115-A) &minus; 1000-V Charged-Device Model (C101)
Features

Parameters

[{"Name":"Number of Elements ","Value":"1"},{"Name":"Number of Bits per Element ","Value":"8"},{"Name":"Frequency - Clock ","Value":"150MHz"},{"Name":"Delay Time - Propagation ","Value":"7ns"},{"Name":"Trigger Type ","Value":"Positive Edge "},{"Name":"Current - Output High, Low ","Value":"24mA, 24mA "},{"Name":"Voltage - Supply ","Value":"1.65 V ~ 3.6 V "},{"Name":"Operating Temperature ","Value":"-40°C ~ 125°C "},{"Name":"","Value":""},{"Name":"","Value":""}]

Manufacturer information

SEIKO INSTRUMENTS

Seiko Instruments Inc. Is a Japanese company which head office is located in 8, Nakase 1-chome, Mihama-ku, Chiba-shi, Chiba 261-8507, Japan . It’s business lines are: Watches Business Watches, Watch Movements Electronic Components Business Quartz crystals, Micro batteries, etc. Precision Mechatronics Business Inkjet printer heads, Hard disk components, Thermal printers, Compact precision components, Machine tools, FA, Musical instrument accessories, Radiation detection and measurement systems, etc.


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