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Home > Products > Integrated Circuits (ICs) > Logic > Shift Registers

Nexperia USA Inc. 74AHCT595D,112

Name: 74AHCT595D,112
Brand: Nexperia USA Inc.
SKU: 74AHCT595D,112
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74AHCT595D,112

Manufacturer:: Nexperia USA Inc.

Category:: Shift Registers

Package:: 16-SOIC (0.154", 3.90mm Width)

Datasheet:: 74AHCT595D,112.pdf

Description:: IC 8BIT SHFT REGSTR 3-ST 16SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:4,026

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Product details

Overview

74AHCT595D,112 from Nexperia is an 8-bit serial-in/parallel-out shift register with storage latch and 3-state outputs, operating at 4.5 V to 5.5 V supply. It features separate shift (SHCP) and storage (STCP) clocks, asynchronous master reset (MR), and TTL-compatible inputs. Used in LED matrix drivers and microcontroller GPIO expansion where serial-to-parallel data conversion and output latching are required.

For engineers reviewing the 74AHCT595D,112 datasheet, 74AHCT595D,112 pinout, 74AHCT595D,112 application, or 74AHCT595D,112 equivalent, key selection criteria include propagation delay (≤10.5 ns @ 5 V), 3-state output enable timing (ten ≤13.0 ns), temperature range (–40 °C to +125 °C), and SO16 package compatibility with legacy PCB footprints.

Technical Context

The device implements two independent 8-bit registers: a serial-shift register clocked by SHCP and a parallel-output storage register clocked by STCP. Data shifts on SHCP rising edge and transfers to storage on STCP rising edge - enabling pipeline operation when clocks are separated.

Its TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max @ VCC = 5 V) ensure interoperability with legacy 5 V logic families, while overvoltage-tolerant inputs (to 5.5 V) support mixed-voltage system interfacing without level shifters.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage	4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL and CMOS systems without regulation overhead.
Propagation Delay (t_pd)	≤10.5 ns @ VCC = 5 V, CL = 50 pF - supports >90 MHz clock rates for high-speed serial loading in real-time control loops.
Output Drive	±8 mA @ VCC = 5 V - directly drives LEDs or logic inputs without external buffers in low-density I/O expansion.
Operating Temperature	–40 °C to +125 °C - qualified for under-hood automotive and industrial motor-control applications.
Input Thresholds	VIH = 2.0 V min, VIL = 0.8 V max - guarantees reliable recognition of 5 V TTL signal levels across voltage and temperature.
3-State Enable Time (t_en)	≤13.0 ns @ VCC = 5 V - enables fast multiplexing of multiple 74AHCT595D devices on shared bus lines.
Power Dissipation	ICC ≤ 80 μA @ VCC = 5.5 V - ultra-low static current suitable for battery-backed or always-on subsystems.

Pinout & Package

74AHCT595D,112 uses the SO16 (SOT109-1) plastic small outline package: 16-pin, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads. RoHS-compliant, rated for reflow per JEDEC J-STD-020.

Pin/Terminal	Circuit Role	Design Meaning
1–7, 15	Q0–Q7 parallel outputs	8-bit latched data outputs; 3-state controlled by OE; drive LEDs or logic loads directly.
8	GND	Ground reference for all internal logic and output stages; must be low-impedance connection.
9	Q7S serial output	Shift register MSB output; enables daisy-chaining multiple 74AHCT595D devices for extended word lengths.
10	MR (Master Reset)	Asynchronous active-LOW reset; clears shift register only - leaves storage register unchanged until next STCP.
11	SHCP (Shift Clock)	Rising-edge-triggered clock for serial data entry into shift register; independent of storage register timing.
12	STCP (Storage Clock)	Rising-edge-triggered clock that transfers data from shift register to output latches; controls output update timing.
13	OE (Output Enable)	Active-LOW 3-state control; disables all Q0–Q7 outputs without affecting internal register states.
14	DS (Data Serial)	Serial data input; sampled on SHCP rising edge; Schmitt-triggered for noise immunity on slow or noisy lines.
16	VCC	Positive supply rail; decoupling capacitor (100 nF) required within 10 mm of pin for stable high-speed operation.

Key Features

Feature	Design Value
TTL-compatible inputs	Guarantees interoperability with legacy 5 V microcontrollers and logic families without level-shifting circuitry.
Overvoltage-tolerant inputs	Accepts up to 5.5 V regardless of VCC - simplifies interface design in mixed-supply systems (e.g., 3.3 V MCU driving 5 V peripherals).
Separate shift/storage clocks	Enables continuous serial loading while holding stable parallel outputs - critical for glitch-free display refresh or DAC updates.
Asynchronous master reset	Resets shift register independently of STCP timing - allows deterministic initialization without disrupting displayed data.
Schmitt-trigger inputs	Provides >0.8 V hysteresis on DS, SHCP, STCP, MR, and OE - rejects noise on long traces or unshielded cables in industrial environments.

Applications

LED Matrix Display Driver

Microcontroller GPIO Expander

Use Scenario: Driving 8×8 monochrome LED matrices in consumer signage or industrial HMI panels.

IC Role / Device Role / Timing Role: Serially receives pixel data from MCU SPI port, latches it via STCP, and drives column cathodes with 3-state-controlled outputs.

Use Value: Reduces MCU pin count by 8 while supporting flicker-free 100 Hz refresh via independent SHCP/STCP timing.

Use Scenario: Extending GPIO count on resource-constrained ARM Cortex-M0+ microcontrollers in smart sensors.

IC Role / Device Role / Timing Role: Acts as a synchronous peripheral register - accepts command/data over bit-banged UART or SPI, then presents parallel outputs for sensor actuation.

Use Value: Enables 8 additional robust, latched digital outputs with <10 ns timing margin for time-critical control signals.

Industrial Relay Control Bank

Automotive Body Control Module

Use Scenario: Controlling 8 electromechanical relays in HVAC control panels or PLC I/O modules.

IC Role / Device Role / Timing Role: Provides isolated, latched, and current-limited parallel outputs; MR pin enables safe power-up reset before relay activation.

Use Value: Eliminates need for external latch ICs and pull-up resistors - reduces BOM cost and board area by 30% vs discrete solutions.

Use Scenario: Managing interior lighting zones (dome, map, courtesy) in vehicle BCMs with strict AEC-Q100 compliance requirements.

IC Role / Device Role / Timing Role: Interfaces between CAN/LIN gateway MCU and local LED drivers; operates across –40 °C to +125 °C ambient with validated ESD robustness.

Use Value: Meets automotive-grade reliability (HBM >2000 V, latch-up >100 mA) while maintaining <11 ns propagation delay for synchronized zone dimming.

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit serial-in/parallel-out shift register applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
74HC595N,652	CMOS input thresholds (VIH = 3.85 V min @ 5 V); no TTL compatibility; slightly higher t_pd (13 ns max @ 5 V).	Requires clean 5 V logic sources; unsuitable for direct interface with older TTL outputs or marginal MCU GPIOs.	Select when system uses only modern CMOS logic and lowest possible static power (<1 μA ICC) is prioritized over input flexibility.
SN74LV595AQPWRQ1	AEC-Q100 Grade 1 qualified; wider VCC range (2.0–5.5 V); identical pinout but enhanced automotive qualification testing.	Validated for under-hood automotive use; includes extended temperature stress screening and failure analysis reports.	Select for new automotive designs requiring full PPAP documentation and zero-defect field reliability - premium cost justified by qualification rigor.

Compared with 74HC595N,652, the 74AHCT595D,112 offers guaranteed TTL input compatibility and faster timing; versus SN74LV595AQPWRQ1, it provides identical functionality at lower cost and broader commercial availability, though without AEC-Q100 certification.

Availability

74AHCT595D,112 is available at Aetrix Electronics and suitable for LED display drivers, microcontroller GPIO expansion, industrial relay banks, and automotive body control modules requiring stable component supply across extended temperature ranges.

Supply support for 74AHCT595D,112 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert delivering high-performance, reliable components for automotive, industrial, mobile, and computing markets, with leadership in logic, MOSFETs, and ESD protection.

The 74AHCT series targets mixed-signal systems requiring TTL-level interoperability and robust noise immunity - designed specifically for bridging legacy 5 V logic with modern low-power controllers in harsh environments.

FAQ

What is the maximum clock frequency supported by 74AHCT595D,112?

The device supports up to 170 MHz maximum shift clock (SHCP) frequency at VCC = 5 V and 25 °C, with 110 MHz guaranteed across –40 °C to +85 °C and 90 MHz across –40 °C to +125 °C. This is derived from minimum pulse width (5 ns) and setup/hold timing constraints in the datasheet.

Can 74AHCT595D,112 operate with a 3.3 V supply?

No - the 74AHCT595D,112 is TTL-compatible and specified only for 4.5 V to 5.5 V operation. For 3.3 V systems, use the pin-compatible 74AHC595D,112 (CMOS-input version) or 74LV595A, which supports 2.0 V to 5.5 V and retains identical functionality.

How does the master reset (MR) pin affect the storage register?

The MR pin resets only the 8-bit shift register; it has no effect on the storage register or parallel outputs. Data latched in Q0–Q7 remains unchanged until the next STCP rising edge, enabling safe initialization without display flicker or output glitches.

Is daisy-chaining multiple 74AHCT595D,112 devices supported?

Yes - the Q7S (serial output) connects directly to the DS (serial input) of the next device. With proper timing (SHCP and STCP synchronized across chain), any number of devices can be cascaded; propagation delay accumulates linearly, limiting maximum chain length in high-speed applications.

74AHCT595D,112 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74AHCT

Package/Case:: 16-SOIC (0.154", 3.90mm Width)

Packaging:: Tube

Product Status:: Obsolete

Logic Type:: Shift Register

Output Type:: Tri-State

Number of Elements:: 1

Number of Bits per Element:: 8

Function:: Serial to Parallel, Serial

Voltage - Supply:: 4.5V ~ 5.5V

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SO

74AHCT595D,112 FAQ

1.How can I place an order for 74AHCT595D,112 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74AHCT595D,112 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for 74AHCT595D,112 reliable?

The price and inventory of 74AHCT595D,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT595D,112 is usually 5 days.

3.What payment methods are accepted for 74AHCT595D,112?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT595D,112 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74AHCT595D,112?

74AHCT595D,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74AHCT595D,112 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for 74AHCT595D,112?

For technical support, including 74AHCT595D,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT595D,112 requirements.

6.How does Aetrix verify that 74AHCT595D,112 is sourced from the original manufacturer or authorized distributors?

All 74AHCT595D,112 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 74AHCT595D,112 meets industry standards.

7.What is the process for return or replacement of 74AHCT595D,112?

All 74AHCT595D,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT595D,112, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The 74AHCT595D,112 part is unused and in its original packaging.

Return procedure for 74AHCT595D,112:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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