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74HCT597DB

8-bit shift register with input flip-flops

The 74HC597; 74HCT597 is an 8-bit shift register with input flip-flops. It consists of an 8-bit storage register feeding a parallel-in, serial-out 8-bit shift register. Both the storage register and the shift register have positive edge-triggered clocks. The shift register also has direct load (from storage) and clear inputs. Inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.

This product has been discontinued

Features and benefits

  • Wide supply voltage range from 2.0 V to 6.0 V

  • CMOS low power dissipation

  • High noise immunity

  • Input levels:

    • For 74HC597: CMOS level

    • For 74HCT597: TTL level

  • 8-bit parallel storage register inputs

  • Shift register has direct overriding load and clear

  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

  • Complies with JEDEC standards

    • JESD8C (2.7 V to 3.6 V)

    • JESD7A (2.0 V to 6.0 V)

  • ESD protection:

    • HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V

    • CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V

  • Multiple package options

  • Specified from -40 °C to +85 °C and from -40 °C to +125 °C

PCB Symbol, Footprint and 3D Model

Model Name Description

Package

All type numbers in the table below are discontinued.

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
74HCT597DB 74HCT597DB,112
(935190180112)
Obsolete no package information
74HCT597DB,118
(935190180118)
Obsolete

Environmental information

All type numbers in the table below are discontinued.

Type number Orderable part number Chemical content RoHS RHF-indicator
74HCT597DB 74HCT597DB,112 74HCT597DB rohs rhf rhf
74HCT597DB 74HCT597DB,118 74HCT597DB rohs rhf rhf
Quality and reliability disclaimer

Documentation (3)

File name Title Type Date
74HC_HCT597 8-bit shift register with input flip-flops Data sheet 2024-05-07
AN11044 Pin FMEA 74HC/74HCT family Application note 2019-01-09
HCT_USER_GUIDE HC/T User Guide User manual 1997-10-31

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Models

No documents available

PCB Symbol, Footprint and 3D Model

Model Name Description

How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.