Diodes 74HCT594 Manual do Utilizador descarregar pdf

74HCT594

Document number: DS35491 Rev. 2 - 2

1 of 12

www.diodes.com

June 2013

74HCT594

8-BIT SHIFT REGISTER WITH 8-BIT OUTPUT REGISTER

Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl)

and < 1000 ppm antimony compounds.

Click for Ordering Information

Description

The 74HCT594 is a high speed CMOS device that is designed to be

pin compatable with 74LS low power Schottky types.

An eight bit shift register accepts data from the serial input (DS) on

each positive transition of the shift register clock (SHCP). When

asserted low the shift register reset function (SHR

) sets all shift

asserted low the storage register reset function (STR

) sets all shift

Data from the input serial shift register is placed in the output

The storage resister includes output Q7S which is used for

cascading information between devices. As the information moves

into the storage register, it is asserted on the push-pull outputs Q0-

Q7.

All registers capture data on rising edge and change output on the

falling edge. If both clocks are connected together, the input shift

Pin Assignments

Features

• Wide Supply Voltage Range from 4.5V to 5.5V

• Sinks or sources 8mA at V

= 4.5V

• CMOS low power consumption

• Schmitt Trigger Action at All Inputs

• Inputs accept up to 6.0V

• ESD Protection Tested per JESD 22

Exceeds 200-V Machine Model (A115-A)

Exceeds 2000-V Human Body Model (A114-A)

Exceeds 1000-V Charged Device Model (C101C)

• Latch-Up Exceeds 250mA per JESD 78, Class II

• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

• Halogen and Antimony Free. “Green” Device (Note 3)

Applications

• General Purpose Logic

• Serial to Parallel Data conversion

• Capture and hold data for extended periods of time.

• Allow simple serial bit streams from a microcontroller to

control as many peripheral lines as needed.

• Wide array of products such as:

o Computer peripherals

o Appliances

o Industrial control

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74HCT594 Document number: DS35491 Rev. 2 - 2 1 of 12 www.diodes.com June 2013 © Diodes Incorporated 74HCT5948-BIT SHIFT REGISTER WITH 8-BIT OUTPUT

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74HCT594 Document number: DS35491 Rev. 2 - 2 10 of 12 www.diodes.com June 2013 © Diodes Incorporated 74HCT594 Package Outline Dimensions (All Dime

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74HCT594 Document number: DS35491 Rev. 2 - 2 11 of 12 www.diodes.com June 2013 © Diodes Incorporated 74HCT594 Suggested Pad Layout Please see AP

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74HCT594 Document number: DS35491 Rev. 2 - 2 12 of 12 www.diodes.com June 2013 © Diodes Incorporated 74HCT594IMPORTANT NOTICE DIODES INCORPORATED

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74HCT594 Document number: DS35491 Rev. 2 - 2 2 of 12 www.diodes.com June 2013 © Diodes Incorporated 74HCT594 Pin Descriptions Pin Number Pin Nam

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74HCT594 Document number: DS35491 Rev. 2 - 2 3 of 12 www.diodes.com June 2013 © Diodes Incorporated 74HCT594Functional Description and Timing Diag

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74HCT594 Document number: DS35491 Rev. 2 - 2 4 of 12 www.diodes.com June 2013 © Diodes Incorporated 74HCT594Absolute Maximum Ratings (Note 4) (@TA

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74HCT594 Document number: DS35491 Rev. 2 - 2 5 of 12 www.diodes.com June 2013 © Diodes Incorporated 74HCT594Electrical Characteristics (@TA = +25°

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74HCT594 Document number: DS35491 Rev. 2 - 2 6 of 12 www.diodes.com June 2013 © Diodes Incorporated 74HCT594Switching Characteristics Symbol / P

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74HCT594 Document number: DS35491 Rev. 2 - 2 7 of 12 www.diodes.com June 2013 © Diodes Incorporated 74HCT594Switching Characteristics (cont.) Sym

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74HCT594 Document number: DS35491 Rev. 2 - 2 8 of 12 www.diodes.com June 2013 © Diodes Incorporated 74HCT594Parameter Measurement Information V

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