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Nexperia USA Inc. 74HCT594D-Q100,118
- Part No.:
- 74HCT594D-Q100,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Shift Registers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HCT594D-Q100,118.pdf
- Description:
- IC SHIFT REGISTER 8BIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,740
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Product details
Overview
74HCT594D-Q100 from Nexperia is an automotive-grade 8-bit serial-in/parallel-out shift register with independent shift and storage registers, TTL-compatible inputs, -40 °C to +125 °C operation, 30 MHz max clock frequency at VCC = 4.5 V, and SO16 package. It enables serial-to-parallel data conversion in automotive body control modules where synchronized output latching and noise-immune timing are required.
For engineers reviewing the 74HCT594D-Q100 datasheet, 74HCT594D-Q100 pinout, 74HCT594D-Q100 application, or 74HCT594D-Q100 equivalent, key selection criteria include independent SHCP/STCP clocks for pipeline control, active-low SHR/STR reset pins, Q7S cascading capability, and AEC-Q100 Grade 1 qualification for under-hood use.
Technical Context
This device implements a two-stage synchronous architecture: an 8-bit shift register accepting serial data on SHCP rising edges, and a separate 8-bit storage register transferring data on STCP rising edges. The dual-clock design decouples data shifting from output updating-enabling glitch-free parallel output updates without disrupting ongoing serial loading.
Each register has dedicated asynchronous reset (SHR and STR), allowing independent clearing of shift or storage contents. Input clamp diodes support interface to voltages exceeding VCC when used with current-limiting resistors, and TTL-level input thresholds ensure compatibility with legacy microcontroller GPIOs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 8-bit serial-in/parallel-out shift register with output storage register |
| Supply Voltage Range | 4.5 V to 5.5 V - matches standard 5 V automotive logic rails |
| Max Clock Frequency | 30 MHz at VCC = 4.5 V - supports high-speed serial data ingestion in real-time control loops |
| Input Logic Type | TTL-compatible - interfaces directly with 5 V microcontrollers without level-shifting |
| Temperature Range | -40 °C to +125 °C - qualified for engine compartment and powertrain applications |
| AEC-Q100 Grade | Grade 1 - certified for automotive safety-critical systems per AEC standard |
| Output Drive Strength | ±6 mA at VCC = 4.5 V - sufficient to drive LED segments or small logic loads directly |
Pinout & Package
74HCT594D-Q100 is housed in a plastic small outline package (SO16, SOT109-1) with 16 leads and 3.9 mm body width, featuring gull-wing leads suitable for automated optical inspection and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–7, 15 | Q0–Q6, Q7 parallel outputs | 8-bit latched parallel data outputs; Q7 also feeds internal feedback path to Q7S |
| 8 | GND | Ground reference for all internal logic and I/O |
| 9 | Q7S serial output | Serial output for daisy-chaining multiple devices; enables N×8-bit expansion |
| 10 | SHR shift register reset | Asynchronous active-low clear of shift register only - preserves storage register state |
| 11 | SHCP shift clock | Rising-edge-triggered clock for serial data entry into shift register |
| 12 | STCP storage clock | Rising-edge-triggered clock to transfer shift register contents to output latches |
| 13 | STR storage register reset | Asynchronous active-low clear of storage register only - leaves shift register intact |
| 14 | DS serial data input | Primary serial data input; sampled on SHCP rising edge |
| 16 | VCC | Positive supply rail; powers both logic and output stages |
Key Features
| Feature | Design Value |
|---|---|
| Independent shift/storage clocks | Enables continuous serial loading while holding stable parallel outputs - critical for real-time display or actuator control |
| AEC-Q100 Grade 1 qualification | Validated for automotive environments including thermal cycling, humidity, and vibration per AEC test plan |
| TTL-compatible input thresholds | VIH(min) = 2.0 V and VIL(max) = 0.8 V at VCC = 4.5–5.5 V - ensures robust interfacing with legacy MCU peripherals |
| Clamp diode-equipped inputs | Allows safe connection to signals up to VCC + 0.5 V using external current-limiting resistors - simplifies mixed-voltage system design |
| Q7S cascading output | Supports unlimited serial expansion by connecting Q7S of one device to DS of next - reduces PCB routing complexity |
Applications
| Automotive Body Control Unit | LED Matrix Display Driver |
|---|---|
Use Scenario: Controlling door locks, window lifts, and interior lighting via microcontroller GPIO expansion. IC Role / Device Role / Timing Role: Serial-to-parallel converter translating SPI-like commands into 8-bit parallel enable signals for power FET drivers. Use Value: Reduces MCU pin count while maintaining deterministic output update timing via STCP-controlled latching. | Use Scenario: Driving 8-segment alphanumeric displays or multi-row LED arrays in instrument clusters. IC Role / Device Role / Timing Role: Output latch providing stable column/row drive signals synchronized to display refresh cycles. Use Value: Eliminates ghosting during multiplexed scanning by isolating shift and output stages - Qn outputs remain static during serial load. |
| Industrial Sensor Interface Hub | Remote I/O Expansion Module |
Use Scenario: Aggregating digital status signals from distributed sensors across a CAN-connected node. IC Role / Device Role / Timing Role: Parallel input capture register buffering sensor states before serial upload to host controller. Use Value: Independent SHR/STR allows selective reset of acquisition or output stage - enabling error recovery without losing valid sensor readings. | Use Scenario: Adding isolated digital I/O channels to PLC backplanes via daisy-chained modules. IC Role / Device Role / Timing Role: Cascadable shift register forming scalable 16-, 24-, or N-bit I/O extension with single DS/Q7S chain. Use Value: Q7S output enables modular expansion without additional control lines - STCP synchronizes all downstream outputs simultaneously. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit shift register with storage register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC594D-Q100 | CMOS input thresholds (VIH = 3.15 V min at VCC = 4.5 V); higher noise immunity but requires ≥3.15 V logic-high input | Suitable for pure CMOS systems; less tolerant of marginal high-side drive from older MCUs | Select when interfacing with 3.3 V or mixed-voltage logic where input voltage margins are well controlled |
| SN74LV595AQPWRQ1 | 3.3 V optimized (1.65–5.5 V range); lower propagation delay (13 ns typ at VCC = 3.3 V); no Q7S output - uses Q7 only | Lacks native cascading; requires external wiring to route Q7 to next DS - increases board area and signal integrity risk | Prefer for low-voltage automotive domains (e.g., infotainment) where 3.3 V operation and speed outweigh cascading convenience |
Compared with 74HC594D-Q100 and SN74LV595AQPWRQ1, the 74HCT594D-Q100 uniquely balances TTL compatibility, AEC-Q100 Grade 1 reliability, and integrated Q7S cascading - making it optimal for cost-sensitive, thermally demanding 5 V automotive subsystems requiring seamless multi-device expansion.
Availability
74HCT594D-Q100 is available at Aetrix Electronics and suitable for automotive body control units, LED matrix display drivers, industrial sensor interface hubs, and remote I/O expansion modules requiring stable component supply across extended temperature ranges.
Supply support for 74HCT594D-Q100 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 focused on essential efficiency technologies, delivering high-performance logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74HCT594-Q100 series belongs to Nexperia's automotive-qualified logic portfolio, designed specifically to meet stringent AEC-Q100 requirements for under-hood and chassis applications where reliability, thermal resilience, and long-term supply stability are mandatory.
FAQ
What is the difference between SHCP and STCP in the 74HCT594D-Q100?
SHCP (Shift Register Clock) controls data movement within the 8-bit shift register on each rising edge, while STCP (Storage Register Clock) transfers the entire shift register content to the output latches on its rising edge. This separation allows serial data loading to continue uninterrupted while outputs remain frozen - essential for glitch-free actuator or display control.
Can the 74HCT594D-Q100 drive LEDs directly?
Yes - each Qn output delivers ±6 mA at VCC = 4.5 V, sufficient to drive low-current indicator LEDs with appropriate current-limiting resistors. However, for high-brightness or multiplexed displays, external FET drivers are recommended to avoid exceeding total package power dissipation limits.
Is the Q7S pin necessary for basic operation?
No - Q7S is optional and used only for cascading multiple 74HCT594D-Q100 devices. In single-device configurations, Q7S can be left unconnected. Its presence eliminates the need for external wiring between Q7 and DS when expanding bit width, improving signal integrity and reducing layout complexity.
How does the AEC-Q100 Grade 1 qualification impact usage?
AEC-Q100 Grade 1 certification validates operation from -40 °C to +125 °C and confirms pass/fail compliance with stress tests including HTOL, TC, HAST, and ESD. This permits direct use in engine control, transmission, and braking modules without additional qualification - reducing time-to-market and validation cost for automotive Tier 1 suppliers.
74HCT594D-Q100,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Shift Register
- Output Type:
- Push-Pull
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
74HCT594D-Q100,118 FAQ
1.How can I place an order for 74HCT594D-Q100,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT594D-Q100,118 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 74HCT594D-Q100,118 reliable?
The price and inventory of 74HCT594D-Q100,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT594D-Q100,118 is usually 5 days.
3.What payment methods are accepted for 74HCT594D-Q100,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT594D-Q100,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT594D-Q100,118?
74HCT594D-Q100,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT594D-Q100,118 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 74HCT594D-Q100,118?
For technical support, including 74HCT594D-Q100,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT594D-Q100,118 requirements.
6.How does Aetrix verify that 74HCT594D-Q100,118 is sourced from the original manufacturer or authorized distributors?
All 74HCT594D-Q100,118 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 74HCT594D-Q100,118 meets industry standards.
7.What is the process for return or replacement of 74HCT594D-Q100,118?
All 74HCT594D-Q100,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT594D-Q100,118, 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 74HCT594D-Q100,118 part is unused and in its original packaging.
Return procedure for 74HCT594D-Q100,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HCT594D-Q100,118 Tags
-
SN74HC164DR
Texas Instruments
-
SN74HC595DR
Texas Instruments
-
74HC595PW,118
Nexperia USA Inc.
-
SN74HC165PWR
Texas Instruments
-
HEF4094BT,653
Nexperia USA Inc.
-
74HC595D,118
Nexperia USA Inc.
-
SN74HC595PWR
Texas Instruments
-
74HC165D,653
Nexperia USA Inc.
-
SN74LV165APWR
Texas Instruments
-
74HC595BQ,115
Nexperia USA Inc.
-
74HC165BQ,115
Nexperia USA Inc.
-
CD4094BPWR
Texas Instruments
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