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74AHCT594BQ

8-bit shift register with output register

The 74AHC594; 74AHCT594 is a high-speed Si-gate CMOS device and is pin compatible with Low-Power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard No. 7-A.

The 74AHC594; 74AHCT594 is an 8-bit, non-inverting, serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. Separate clocks (SHCP and STCP) and direct overriding clears (SHR and STR) are provided on both the shift and storage registers. A serial output (Q7S) is provided for cascading purposes.

Both the shift and storage register clocks are positive-edge triggered. If the user wishes to connect both clocks together, the shift register will always be one count pulse ahead of the storage register.

Features and benefits

  • Wide supply voltage range from 2.0 V to 5.5 V

  • Balanced propagation delays

  • All inputs have Schmitt-trigger action

  • Overvoltage tolerant inputs to 5.5 V

  • High noise immunity

  • CMOS low power dissipation

  • 8-bit serial-in, parallel-out shift register with storage

  • Independent direct overriding clears on shift and storage registers

  • Independent clocks for shift and storage registers

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

  • Input levels:

    • For 74AHC594: CMOS level

    • For 74AHCT594: TTL level

  • 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

Applications

  • Serial-to parallel data conversion

  • Remote control holding register

Parametrics

Type number Product status VCC (V) Logic switching levels Output drive capability (mA) tpd (ns) fmax (MHz) Nr of bits Power dissipation considerations Tamb (°C) Rth(j-a) (K/W) Ψth(j-top) (K/W) Rth(j-c) (K/W) Package name
74AHCT594BQ Production 4.5 - 5.5 TTL ± 8 3.8 160 8 low -40~125 91 12.3 60 DHVQFN16

PCB Symbol, Footprint and 3D Model

Model Name Description

Package

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
74AHCT594BQ 74AHCT594BQ,115
(935282017115)
Active ACT594 SOT763-1
DHVQFN16
(SOT763-1)
SOT763-1 SOT763-1_115

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
74AHCT594BQ 74AHCT594BQ,115 74AHCT594BQ rohs rhf rhf
Quality and reliability disclaimer

Documentation (10)

File name Title Type Date
74AHC_AHCT594 8-bit shift register with output register Data sheet 2023-10-09
AN11106 Pin FMEA for AHC/AHCT family Application note 2019-01-09
ahct594 ahct594 IBIS model IBIS model 2013-04-07
74AHCT594BQ_Nexperia_Product_Reliability 74AHCT594BQ Nexperia Product Reliability Quality document 2023-05-29
SOT763-1 3D model for products with SOT763-1 package Design support 2019-10-03
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
DHVQFN16_SOT763-1_mk plastic, dual in-line compatible thermal enhanced very thin quad flat package; 16 terminals; 0.5 mm pitch; 3.5 mm x 2.5 mm x 0.85 mm body Marcom graphics 2017-01-28
SOT763-1_115 DHVQFN16; Reel pack, SMD, 7" Q1/T1 product orientation Packing information 2020-04-21

Support

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Models

File name Title Type Date
ahct594 ahct594 IBIS model IBIS model 2013-04-07
SOT763-1 3D model for products with SOT763-1 package Design support 2019-10-03

PCB Symbol, Footprint and 3D Model

Model Name Description

Ordering, pricing & availability

Type number Orderable part number Ordering code (12NC) Status Packing Packing Quantity Buy online
74AHCT594BQ 74AHCT594BQ,115 935282017115 Active SOT763-1_115 3,000 Order product

Sample

As a Nexperia customer you can order samples via our sales organization or directly via our Online Sample Store: https://extranet.nexperia.com.

Sample orders normally take 2-4 days for delivery.

If you do not have a direct account with Nexperia our network of global and regional distributors is available and equipped to support you with Nexperia samples.

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.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74AHCT594BQ 74AHCT594BQ,115 935282017115 SOT763-1 Order product