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

Nexperia USA Inc. 74VHC595D,118

Name: 74VHC595D,118
Brand: Nexperia USA Inc.
SKU: 74VHC595D,118
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: 74VHC595D,118

Manufacturer:: Nexperia USA Inc.

Category:: Shift Registers

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

Datasheet:: 74VHC595D,118.pdf

Description:: IC SHIFT REG 8BIT SISO 16SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:2,500

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Product details

Overview

74VHC595D,118 from Nexperia is an 8-bit serial-in/parallel-out shift register with storage latch and 3-state outputs in SO16 package. It performs serial-to-parallel data conversion using separate shift (SHCP) and storage (STCP) clocks, supports asynchronous master reset (MR), and operates from 2.0 V to 5.5 V for industrial control and LED matrix driving.

For engineers reviewing the 74VHC595D,118 datasheet, 74VHC595D,118 pinout, 74VHC595D,118 application, or 74VHC595D,118 equivalent, this device is selected for precise timing-critical serial interface expansion where output latching, bus isolation via OE control, and TTL-compatible input thresholds (in VHCT variant) are required.

Technical Context

The 74VHC595D implements two synchronized but independent 8-bit registers: a serial shift register accepting data on SHCP rising edges and a parallel storage register loaded on STCP rising edges. Its dual-clock architecture enables pipeline operation-data shifted in one cycle appears at Q0–Q7 only after the next STCP edge.

It features Schmitt-trigger inputs for noise immunity, CMOS-level input compatibility (V_IH = 3.85 V @ V_CC = 5.5 V), 3-state outputs controlled by active-low OE, and asynchronous MR that clears only the shift register-not the storage register-ensuring output stability during reset.

Key Specifications

Parameter	Value and Actual Design Meaning
Logic Family	VHC (High-speed CMOS); compatible with LSTTL pinout and drive levels
Supply Voltage Range	2.0 V to 5.5 V - supports mixed-voltage system interfacing and low-power operation
Max Clock Frequency	170 MHz @ V_CC = 5.5 V - enables high-throughput serial data loading in real-time control loops
Propagation Delay	4.0 ns (SHCP→Q7S, CL = 15 pF, V_CC = 5.5 V) - ensures tight timing margins in cascaded shift-register chains
Output Drive	±8 mA @ V_CC = 4.5 V - sufficient to directly drive LEDs or standard logic loads without external buffers
Operating Temperature	−40 °C to +125 °C - qualified for under-hood automotive and industrial motor-control environments
ESD Rating	HBM > 2000 V, CDM > 1000 V - robust handling in automated assembly and field-replaceable modules

Pinout & Package

74VHC595D,118 uses the SO16 (SOT109-1) plastic small outline package: 16-pin, 3.9 mm body width, 1.27 mm pitch, gull-wing leads. Pin 1 index located at top-left corner with notch marking orientation.

Pin	Circuit Role	Design Meaning
1–7, 15	Q0–Q7 parallel outputs	8-bit latched data bus; 3-state when OE = HIGH - enables shared-bus multiplexing
8	GND	Reference ground for all internal logic and I/O - must be low-impedance for noise-free shifting
9	Q7S serial output	Cascadable output; feeds DS of next stage - supports unlimited bit-width expansion
10	MR (Master Reset)	Asynchronous active-LOW reset of shift register only - preserves stored output state during reinitialization
11	SHCP (Shift Clock)	Rising-edge triggered clock for serial data entry - determines maximum data rate in shift chain
12	STCP (Storage Clock)	Rising-edge triggered clock for latch transfer - decouples shift timing from output update timing
13	OE (Output Enable)	Active-LOW control of Q0–Q7 3-state drivers - allows dynamic bus contention avoidance
14	DS (Data Serial Input)	Single-bit serial data entry point - synchronized to SHCP for deterministic bit alignment
16	VCC	Positive supply rail - powers both shift and storage registers; bypass capacitor required at pin

Key Features

Feature	Design Value
Dual independent clocks (SHCP/STCP)	Enables pipelined operation: new data shifts in while previous data remains latched and stable on outputs
Schmitt-trigger inputs	Provides > 0.5 V hysteresis on all control pins - rejects EMI and slow-rising signals in noisy industrial wiring
CMOS-level input thresholds	V_IH = 3.85 V @ V_CC = 5.5 V - ensures reliable recognition of microcontroller GPIO outputs without level-shifting
3-state parallel outputs with OE	Allows direct connection to shared data buses (e.g., SPI peripherals or display column drivers) without external MUX
Asynchronous MR with shift-only reset	Prevents unintended output glitches during system initialization - storage register retains last valid state

Applications

LED Matrix Driver

Microcontroller I/O Expander

Use Scenario: Driving 8×8 monochrome LED grid with row-scanning and column data latching.

IC Role / Device Role / Timing Role: Serial data shifter and parallel output latch - receives column data via SPI, holds it stable during row activation.

Use Value: Eliminates need for 8 dedicated GPIOs; enables precise 100+ Hz refresh rates using single SPI line and two timer-controlled clocks (SHCP/STCP).

Use Scenario: Adding 8 digital output lines to an STM32 MCU with limited GPIOs for sensor actuation and status indication.

IC Role / Device Role / Timing Role: Output port expander - accepts serial commands from MCU's USART/SPI and presents latched parallel outputs.

Use Value: Reduces firmware overhead vs. bit-banged GPIO; provides glitch-free output updates synchronized to STCP edge.

Industrial PLC Output Module

Cascaded Digital Control Bus

Use Scenario: Isolating and driving 8 relay coils in a DIN-rail mounted programmable logic controller.

IC Role / Device Role / Timing Role: Level-translating and latched output stage - interfaces 3.3 V logic to 24 V relay drivers with noise-immune control.

Use Value: MR pin enables safe power-up reset without relay chatter; OE allows hot-swap diagnostics via bus disable.

Use Scenario: Building a 32-bit distributed control bus across four PCBs using daisy-chained shift registers.

IC Role / Device Role / Timing Role: Cascaded serial register node - Q7S of upstream feeds DS of downstream; STCP globally synchronized.

Use Value: Single SHCP/STCP pair controls entire 32-bit chain; propagation delay stacking is predictable (≤ 16.5 ns per stage @ 5.5 V).

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
74VHCT595D,118	TTL-compatible inputs (V_IL = 0.8 V, V_IH = 2.0 V); identical pinout and function	Better interoperability with legacy 5 V TTL logic families and older microcontrollers lacking CMOS-level drive	Select when interfacing to 74LS, 74ALS, or early PIC/AVR devices with weak high-level output drive
SN74HC595PWR	TI part; same V_CC range (2–6 V), but higher ICC (80 μA max vs. 40 μA), no Schmitt triggers on inputs	Lacks input hysteresis - more susceptible to noise on long traces or unshielded cables in factory floors	Prefer for cost-sensitive consumer designs with clean signal paths; avoid in high-noise industrial settings

Compared with 74VHC595D,118, the 74VHCT595D,118 offers superior legacy logic compatibility at identical speed and packaging, while the SN74HC595PWR trades noise immunity for broader voltage tolerance and lower unit cost - making the VHC variant optimal for new industrial designs requiring robustness and precision timing.

Availability

74VHC595D,118 is available at Aetrix Electronics and suitable for LED display systems, microcontroller I/O expansion, industrial PLC output stages, and cascaded digital control buses requiring stable component supply across extended temperature ranges.

Supply support for 74VHC595D,118 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 discrete, logic, and MOSFET solutions optimized for efficiency and miniaturization in power management and signal integrity applications.

The 74VHC595D,118 belongs to Nexperia's VHC logic family - engineered for high-speed, low-power serial interface expansion in automotive, industrial, and computing systems where timing accuracy and noise immunity are critical.

FAQ

Can 74VHC595D,118 operate at 3.3 V with guaranteed timing?

Yes. The datasheet specifies full functionality from 2.0 V to 5.5 V, including t_pd ≤ 13.0 ns (SHCP→Q7S) and f_max ≥ 125 MHz at V_CC = 3.3 V (3.0–3.6 V range). All DC parameters - including VIH/VIL thresholds and output drive - are characterized and guaranteed across this range.

What happens to Q0–Q7 outputs during MR assertion?

MR only resets the 8-bit shift register; it does not affect the storage register or Q0–Q7 outputs. Outputs remain latched at their last valid state until STCP is pulsed or OE is toggled. This behavior prevents unintended output transients during system reset sequences.

Is Q7S output synchronized to SHCP or STCP?

Q7S is strictly synchronous to SHCP - it reflects the state of the shift register's final stage (Q7) on each SHCP rising edge, independent of STCP. This enables deterministic cascading: Q7S of Stage N feeds DS of Stage N+1, with timing governed solely by SHCP propagation delay.

How does OE interact with the storage register contents?

OE controls only the 3-state output drivers - it has no effect on the storage register's internal state. When OE = HIGH, Q0–Q7 enter high-impedance mode but retain their latched values; when OE returns LOW, the previously stored data reappears immediately without delay or re-latching.

74VHC595D,118 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: 74VHC

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

Packaging:: Tape & Reel (TR)

Product Status:: Active

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:: 2V ~ 5.5V

Operating Temperature:: -40°C ~ 125°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SO

74VHC595D,118 FAQ

1.How can I place an order for 74VHC595D,118 through Aetrix?

Please submit a Request for Quotation (RFQ) for 74VHC595D,118 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 74VHC595D,118 reliable?

The price and inventory of 74VHC595D,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74VHC595D,118 is usually 5 days.

3.What payment methods are accepted for 74VHC595D,118?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74VHC595D,118 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for 74VHC595D,118?

74VHC595D,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your 74VHC595D,118 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 74VHC595D,118?

For technical support, including 74VHC595D,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74VHC595D,118 requirements.

6.How does Aetrix verify that 74VHC595D,118 is sourced from the original manufacturer or authorized distributors?

All 74VHC595D,118 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 74VHC595D,118 meets industry standards.

7.What is the process for return or replacement of 74VHC595D,118?

All 74VHC595D,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74VHC595D,118, 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 74VHC595D,118 part is unused and in its original packaging.

Return procedure for 74VHC595D,118:

1.Submit a request within 90 days.

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

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