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Nexperia USA Inc. 74VHC595BQ-Q100X
- Part No.:
- 74VHC595BQ-Q100X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Shift Registers
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
74VHC595BQ-Q100X.pdf
- Description:
- IC SHIFT REG 8BIT CMOS 16DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,069
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Product details
Overview
74VHC595BQ-Q100 from Nexperia is an AEC-Q100 Grade 1 qualified 8-bit serial-in/parallel-out shift register with storage register, 3-state outputs, and separate shift/storage clocks (SHCP/STCP). It operates from -40 °C to +125 °C, supports CMOS-level inputs (VIH = 3.85 V at VCC = 5.5 V), delivers ≤10.5 ns propagation delay at 5 V, and features asynchronous master reset (MR) and output enable (OE). It is used in automotive LED matrix drivers requiring cascaded data expansion and latch-controlled output staging.
For engineers reviewing the 74VHC595BQ-Q100 datasheet, 74VHC595BQ-Q100 pinout, 74VHC595BQ-Q100 application, or 74VHC595BQ-Q100 equivalent, key selection criteria include its dual-clock architecture (SHCP/STCP separation), DHVQFN16 package with side-wettable flanks for AOI, AEC-Q100 Grade 1 qualification, 3-state bus driver outputs, and Schmitt-trigger inputs enabling noise-immune serial control in harsh automotive environments.
Technical Context
The device implements two synchronous stages: an 8-stage shift register clocked by SHCP (positive-edge triggered), and a parallel-output storage register clocked by STCP (also positive-edge). Data cascades via DS → Q7S, while MR asynchronously clears all shift stages. The storage register drives eight 3-state outputs (Q0–Q7), enabled only when OE is LOW.
Its CMOS input structure accepts voltages up to 7.0 V regardless of VCC, and all inputs feature Schmitt-trigger action for robust noise rejection. The DHVQFN16 package (SOT763-1) provides thermal enhancement and solder-joint inspectability via side-wettable flanks - critical for automotive production traceability and reliability validation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 8-bit serial-in/parallel-out shift register with independent storage register and 3-state outputs |
| Supply Voltage Range | 2.0 V to 5.5 V - supports 3.3 V and 5 V automotive domains without level-shifting |
| Propagation Delay (tpd) | ≤10.5 ns at VCC = 4.5–5.5 V, CL = 50 pF - enables >90 MHz clock operation in high-speed data chaining |
| Input Thresholds | VIH = 3.85 V, VIL = 1.65 V at VCC = 5.5 V - ensures TTL-compatible logic margins with CMOS power efficiency |
| Output Drive | ±8 mA at VCC = 4.5 V - sufficient to directly drive LEDs or interface with standard logic loads |
| ESD Robustness | HBM >2000 V, CDM >1000 V - meets stringent automotive board handling and assembly requirements |
| Operating Temperature | -40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood and ADAS module deployment |
Pinout & Package
DHVQFN16 package (SOT763-1), 2.5 × 3.5 × 0.85 mm body, no leads, 16 terminals, side-wettable flanks for automated optical inspection (AOI) of solder joints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal logic and output stages; electrically isolated thermal pad (not required to be soldered) |
| 2 | Q0 | Parallel output bit 0 - latched data stage 0, active when OE = LOW |
| 3 | Q1 | Parallel output bit 1 - latched data stage 1, active when OE = LOW |
| 4 | Q2 | Parallel output bit 2 - latched data stage 2, active when OE = LOW |
| 5 | Q3 | Parallel output bit 3 - latched data stage 3, active when OE = LOW |
| 6 | Q4 | Parallel output bit 4 - latched data stage 4, active when OE = LOW |
| 7 | Q5 | Parallel output bit 5 - latched data stage 5, active when OE = LOW |
| 8 | Q6 | Parallel output bit 6 - latched data stage 6, active when OE = LOW |
| 9 | Q7S | Serial output - shifted-out MSB (Q7) of shift register, used for daisy-chaining |
| 10 | MR | Master reset - asynchronous active-LOW clear of all 8 shift register stages only |
| 11 | SHCP | Shift register clock - positive-edge triggered; advances data through shift register |
| 12 | STCP | Storage register clock - positive-edge triggered; transfers shift register contents to output latches |
| 13 | OE | Output enable - active-LOW control of all 8 parallel outputs (Q0–Q7); HIGH forces 3-state (Z) |
| 14 | DS | Serial data input - new bit loaded into shift register on next SHCP rising edge |
| 15 | Q7 | Parallel output bit 7 - latched data stage 7, active when OE = LOW |
| 16 | VCC | Positive supply - powers both shift and storage registers; tolerant to 7.0 V max |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent clocks (SHCP/STCP) | Enables precise timing separation between data shifting and output latching - prevents glitches during cascaded updates |
| Asynchronous master reset (MR) | Clears shift register independently of clock edges - allows deterministic initialization without disrupting STCP timing |
| Schmitt-trigger inputs | Provides ≥0.8 V hysteresis on all control pins (SHCP, STCP, MR, OE, DS) - rejects EMI in noisy automotive harnesses |
| Side-wettable flanks (DHVQFN16) | Enables automated optical inspection (AOI) of solder joints - mandatory for zero-defect automotive PCB assembly |
| AEC-Q100 Grade 1 qualification | Validated for continuous operation at +125 °C ambient - suitable for engine control units (ECUs) and front-end ADAS modules |
Applications
| Automotive LED Matrix Driver | Instrument Cluster Display Control |
|---|---|
|
Use Scenario: Driving 64+ RGB LEDs in a vehicle's center console display using microcontroller GPIO expansion. IC Role / Device Role / Timing Role: Serial-to-parallel converter that receives SPI-like data over DS/SHCP, latches it on STCP, and presents stable parallel outputs (Q0–Q7) to LED sink drivers. Use Value: Reduces MCU pin count by 8×; dual-clock isolation prevents flicker during dynamic brightness updates across multiple cascaded devices. |
Use Scenario: Controlling segmented backlighting and warning indicators in digital instrument clusters with strict EMI immunity requirements. IC Role / Device Role / Timing Role: Output latch buffer that holds display segment states while the MCU processes new CAN messages or sensor inputs. Use Value: MR pin enables synchronized blanking across all displays during firmware updates; Schmitt inputs reject ignition noise. |
| Body Control Module (BCM) I/O Expander | ADAS Camera Interface Logic |
|
Use Scenario: Adding 16+ discrete load switches (e.g., door lock actuators, mirror heaters) to a BCM with limited GPIO resources. IC Role / Device Role / Timing Role: Cascadable shift register providing parallel output staging with OE-controlled bus isolation during hot-swap events. Use Value: 3-state outputs prevent back-driving during power sequencing; AEC-Q100 Grade 1 ensures reliability across 15-year vehicle lifecycle. |
Use Scenario: Managing configuration registers and status flags in surround-view camera ECUs where space and thermal density are constrained. IC Role / Device Role / Timing Role: Low-profile DHVQFN16 shift register used for boot-time FPGA configuration bitstream loading and diagnostic signal routing. Use Value: 0.85 mm height and side-wettable flanks meet tight camera module Z-height limits while supporting AOI for zero-defect manufacturing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit shift register with storage applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74VHCT595BQ-Q100 | TTL-compatible inputs (VIH = 2.0 V min), identical pinout and function | Better suited for mixed-signal systems with legacy 5 V TTL controllers; same AEC-Q100 Grade 1 rating | Select when interfacing with older microcontrollers lacking CMOS-level drive strength or voltage thresholds |
| SN74HC595QPWRQ1 | TI's AEC-Q100 Grade 1 variant; slightly higher tpd (13 ns @ 5 V), SOIC/TSSOP only - no DHVQFN option | Lacks side-wettable flanks; unsuitable for AOI-dependent automotive lines; different thermal profile | Choose only if DHVQFN packaging is not required and TI's supply chain preference overrides Nexperia's package advantages |
Compared with 74VHC595BQ-Q100, the 74VHCT595BQ-Q100 offers lower input threshold compatibility at no cost to automotive qualification, while SN74HC595QPWRQ1 trades package manufacturability for brand familiarity - making the Nexperia DHVQFN variant optimal for space-constrained, AOI-governed automotive designs.
Availability
74VHC595BQ-Q100 is available at Aetrix Electronics and suitable for automotive LED matrix drivers, instrument cluster displays, body control modules, and ADAS camera interfaces requiring stable component supply across extended temperature ranges and zero-defect manufacturing compliance.
Supply support for 74VHC595BQ-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 leading semiconductor manufacturer specializing in high-performance, high-reliability logic, analog, and MOSFET solutions, with deep expertise in automotive-grade components and AEC-Q100 qualification.
This device belongs to Nexperia's automotive-qualified 74VHC/VHCT logic family, designed specifically for robust serial data expansion in safety-critical vehicle subsystems where thermal resilience, ESD immunity, and AOI-compatible packaging are mandatory.
FAQ
Can 74VHC595BQ-Q100 operate at 3.3 V supply while maintaining AEC-Q100 Grade 1 compliance?
Yes. The device is fully specified from 2.0 V to 5.5 V and qualified across -40 °C to +125 °C at all voltages within that range. At VCC = 3.3 V, VIH = 2.1 V (min), VOL ≤ 0.36 V (at 4 mA), and tpd ≤ 16.5 ns - meeting full Grade 1 requirements without derating.
What is the function of the exposed thermal pad (terminal 1) in the DHVQFN16 package?
Terminal 1 is a non-electrical thermal pad with no electrical or mechanical requirement to solder. If soldered, it must remain floating or connect to GND - it serves only thermal dissipation and mechanical stability, not signal or power integrity.
How does the dual-clock architecture prevent output corruption during cascaded updates?
SHCP shifts new data into the shift register while STCP independently latches completed data into outputs. This decoupling ensures Q0–Q7 remain stable during serial loading, eliminating race conditions - critical when driving LEDs or relays where partial updates cause visible artifacts or unintended actuation.
Is the MR (master reset) pin synchronous or asynchronous, and what does it affect?
MR is asynchronous and active-LOW. It clears only the 8-stage shift register - not the storage register or outputs. This allows safe initialization of incoming data flow without disturbing currently displayed or driven states on Q0–Q7, preserving system continuity during power-up or fault recovery.
74VHC595BQ-Q100X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74VHC
- Package/Case:
- 16-VFQFN Exposed Pad
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-DHVQFN (2.5x3.5)
74VHC595BQ-Q100X FAQ
1.How can I place an order for 74VHC595BQ-Q100X through Aetrix?
Please submit a Request for Quotation (RFQ) for 74VHC595BQ-Q100X 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 74VHC595BQ-Q100X reliable?
The price and inventory of 74VHC595BQ-Q100X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74VHC595BQ-Q100X is usually 5 days.
3.What payment methods are accepted for 74VHC595BQ-Q100X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74VHC595BQ-Q100X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74VHC595BQ-Q100X?
74VHC595BQ-Q100X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74VHC595BQ-Q100X 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 74VHC595BQ-Q100X?
For technical support, including 74VHC595BQ-Q100X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74VHC595BQ-Q100X requirements.
6.How does Aetrix verify that 74VHC595BQ-Q100X is sourced from the original manufacturer or authorized distributors?
All 74VHC595BQ-Q100X 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 74VHC595BQ-Q100X meets industry standards.
7.What is the process for return or replacement of 74VHC595BQ-Q100X?
All 74VHC595BQ-Q100X units undergo pre-shipment inspection (PSI). If there is an issue with 74VHC595BQ-Q100X, 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 74VHC595BQ-Q100X part is unused and in its original packaging.
Return procedure for 74VHC595BQ-Q100X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74VHC595BQ-Q100X Tags
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Texas Instruments
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74HC595PW,118
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SN74HC595PWR
Texas Instruments
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74HC165D,653
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SN74LV165APWR
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