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Nexperia USA Inc. 74LVC594AD-Q100J
- Part No.:
- 74LVC594AD-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Shift Registers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74LVC594AD-Q100J.pdf
- Description:
- IC SHIFT REGISTER 8BIT 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,282
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Product details
Overview
74LVC594AD-Q100 from Nexperia is an automotive-qualified 8-bit serial-in/parallel-out shift register with separate shift and storage registers, dual clock inputs (SHCP and STCP), active-low reset pins (SHR, STR), and Schmitt-trigger inputs. It operates from 1.2 V to 3.6 V, supports mixed-voltage interfacing (inputs tolerant to 5.5 V), and features IOFF partial power-down protection. It is used in automotive body control modules for LED matrix driving and remote I/O expansion.
For engineers reviewing the 74LVC594AD-Q100 datasheet, 74LVC594AD-Q100 pinout, 74LVC594AD-Q100 application, or 74LVC594AD-Q100 equivalent, key selection criteria include its dual-register architecture enabling glitch-free output updates, AEC-Q100 Grade 1 qualification (-40 °C to +125 °C), SO16 package with side-wettable flanks for AOI, and guaranteed cascading via Q7S output.
Technical Context
The device implements two independent synchronous registers: an 8-stage shift register clocked by SHCP (data shifted on LOW-to-HIGH transition) and an 8-bit storage register clocked by STCP (data transferred on LOW-to-HIGH transition). Separate SHR and STR inputs allow asynchronous reset of each register without affecting the other.
Its IOFF circuitry disables outputs during power-down to prevent backflow current, and Schmitt-trigger inputs ensure robust operation with slow-rising signals in noisy automotive environments. The 16-pin SO16 (SOT109-1) package supports automatic optical inspection via side-wettable flanks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 8-bit serial-in/parallel-out shift register with output storage register and serial cascade capability |
| Supply Voltage Range | 1.2 V to 3.6 V - enables direct interface with 1.8 V, 2.5 V, and 3.3 V logic domains |
| Input Voltage Tolerance | Up to 5.5 V - allows safe connection to 5 V microcontrollers or legacy systems in mixed-voltage designs |
| Operating Temperature | -40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood automotive applications |
| Propagation Delay (VCC = 3.3 V) | 6.7 ns max (SHCP→Q7S) and 7.7 ns max (STCP→Qn) - ensures timing predictability in high-speed serial data chains |
| IOFF Leakage Current | ≤10 μA at VCC = 0 V - prevents damaging back-current when powered down while system rails remain active |
| ESD Protection | HBM >2000 V, CDM >1000 V - meets automotive robustness requirements for handling and board assembly |
Pinout & Package
74LVC594AD-Q100 is supplied in a plastic small outline package (SO16) per SOT109-1: 16-pin, 3.9 mm body width, 1.27 mm lead pitch, with side-wettable flanks for automated optical solder-joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 15 | Q0–Q7 | Parallel output terminals - driven by storage register; hold stable values until next STCP edge |
| 8 | GND | Ground reference for all internal logic and I/O - must be connected to system 0 V plane |
| 9 | Q7S | Serial output - carries bit shifted out of Q7 stage; enables daisy-chaining multiple devices |
| 10 | SHR | Active-low shift register reset - asynchronously clears only the shift register, preserving storage register contents |
| 11 | SHCP | Shift clock input - LOW-to-HIGH transition shifts serial data (DS) into stage 0 and advances all bits |
| 12 | STCP | Storage clock input - LOW-to-HIGH transition transfers current shift register contents to output latches (Q0–Q7) |
| 13 | STR | Active-low storage register reset - asynchronously clears only the output latches, leaving shift register unaffected |
| 14 | DS | Serial data input - accepts new bit on each SHCP rising edge; synchronized to internal clock domain |
| 16 | VCC | Positive supply - powers both logic core and output drivers; decoupling capacitor required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent clock domains | Separate SHCP and STCP inputs enable precise timing control - outputs update only when desired, eliminating glitches during shifting |
| IOFF partial power-down mode | Outputs go high-impedance when VCC = 0 V - prevents reverse current flow in multi-rail systems during sleep or fault conditions |
| Schmitt-trigger inputs | Hysteresis ≥0.3 V at VCC = 3.3 V - rejects noise and accommodates slow edges from mechanical switches or long PCB traces |
| Overvoltage-tolerant inputs | Withstand 5.5 V regardless of VCC setting - eliminates level-shifters when interfacing with 5 V controllers or sensors |
| AEC-Q100 Grade 1 qualification | Validated for -40 °C to +125 °C operation with full electrical testing - meets automotive reliability and lifetime requirements |
Applications
| Automotive LED Matrix Driver | Body Control Module I/O Expander |
|---|---|
|
Use Scenario: Driving 8-channel LED arrays in door handle illumination or ambient lighting clusters where space-constrained PCBs require serial control. IC Role / Device Role / Timing Role: Shift register buffers serial commands from MCU and latches them synchronously to drive LEDs with stable, glitch-free output states. Use Value: Eliminates need for 8 GPIOs per module; dual-register architecture ensures LEDs never flicker during data loading. |
Use Scenario: Adding remote digital I/O to vehicle body control units using existing CAN or LIN communication links with minimal MCU overhead. IC Role / Device Role / Timing Role: Serial-to-parallel converter that receives configuration and status data over SPI-compatible bus and presents it as parallel control/status bits. Use Value: Enables hot-swap-safe I/O expansion with IOFF protection - no backfeed risk when module is inserted/removed live. |
| Instrument Cluster Segment Driver | Automotive HVAC Display Interface |
|
Use Scenario: Controlling 7-segment displays or bar-graph indicators in digital instrument clusters requiring high EMI immunity and wide temperature range. IC Role / Device Role / Timing Role: Output register holds display data steady while shift register loads next frame - critical for flicker-free human-machine interface. Use Value: Schmitt-trigger inputs reject noise from adjacent switching regulators; AEC-Q100 qualification ensures operation at dashboard temperatures up to 125 °C. |
Use Scenario: Interfacing HVAC control panel buttons and status LEDs to main controller via compact serial link in tight dashboard cavity. IC Role / Device Role / Timing Role: Bidirectional serial interface node - DS/Q7S handles upstream command stream, Q0–Q7 drive local LEDs and read button states via external pull-ups. Use Value: Overvoltage-tolerant inputs accept 5 V button signals directly; low 1.2 V min VCC supports ultra-low-power standby modes. |
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 |
|---|---|---|---|
| 74LVC595AD-Q100 | Lacks separate SHR/STR pins - single master reset affects both shift and storage registers; no independent register control | Unsuitable where asynchronous clear of only shift or only output register is required (e.g., real-time display updates) | Select only if simplified reset behavior is acceptable and dual-register independence is not needed |
| SN74LV8154ARGYR | 16-bit, dual 8-bit registers with common clocks; no dedicated serial-out (Q7S); higher supply current (ICC ≤ 20 μA vs. ≤10 μA) | Requires external logic for cascading; lacks Q7S pin - limits daisy-chain scalability in multi-node lighting systems | Choose only when 16-bit width is mandatory and board space permits added discrete logic for serial chaining |
Compared with 74LVC594AD-Q100, the 74LVC595AD-Q100 sacrifices register independence for lower cost, while the SN74LV8154ARGYR trades cascading simplicity and low ICC for wider data path - neither matches the precise dual-clock, dual-reset, and AOI-ready SO16 combination of the 74LVC594AD-Q100.
Availability
74LVC594AD-Q100 is available at Aetrix Electronics and suitable for automotive lighting control, body electronics I/O expansion, and instrument cluster display driving requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74LVC594AD-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 delivering high-performance logic, analog, and MOSFET solutions optimized for automotive, industrial, and mobile applications with emphasis on reliability and energy efficiency.
The 74LVC594A-Q100 belongs to Nexperia's automotive-qualified LVC logic family, designed specifically for robust serial data handling in harsh environments where signal integrity, power-down safety, and long-term supply stability are critical.
FAQ
Can 74LVC594AD-Q100 operate with a 5 V microcontroller driving its inputs?
Yes - all inputs are overvoltage tolerant up to 5.5 V regardless of VCC setting (1.2 V to 3.6 V). This allows direct connection to 5 V MCUs without level shifters, while outputs swing rail-to-rail within the VCC range. Input hysteresis further enhances noise immunity in mixed-voltage automotive systems.
What happens to outputs during power-down when VCC = 0 V?
The IOFF circuitry activates automatically, forcing all Q0–Q7 outputs into high-impedance state with leakage ≤10 μA. This prevents back-current from other powered system rails through the device, satisfying automotive functional safety requirements for partial power-down scenarios.
Is the SO16 package of 74LVC594AD-Q100 compatible with automated optical inspection?
Yes - the SOT109-1 package features side-wettable flanks, allowing solder joint quality on gull-wing leads to be verified using standard AOI systems. This supports zero-defect manufacturing goals in automotive electronics production lines without requiring X-ray inspection.
How does the dual-clock architecture improve display driving reliability?
By separating SHCP (shift) and STCP (storage) clocks, new data can be loaded into the shift register while previous data remains latched on Q0–Q7. Only upon STCP assertion do outputs update - eliminating visual artifacts like ghosting or partial updates during rapid refresh cycles in LED matrices or segment displays.
74LVC594AD-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- 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:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
74LVC594AD-Q100J FAQ
1.How can I place an order for 74LVC594AD-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC594AD-Q100J 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 74LVC594AD-Q100J reliable?
The price and inventory of 74LVC594AD-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC594AD-Q100J is usually 5 days.
3.What payment methods are accepted for 74LVC594AD-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC594AD-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC594AD-Q100J?
74LVC594AD-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC594AD-Q100J 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 74LVC594AD-Q100J?
For technical support, including 74LVC594AD-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC594AD-Q100J requirements.
6.How does Aetrix verify that 74LVC594AD-Q100J is sourced from the original manufacturer or authorized distributors?
All 74LVC594AD-Q100J 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 74LVC594AD-Q100J meets industry standards.
7.What is the process for return or replacement of 74LVC594AD-Q100J?
All 74LVC594AD-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC594AD-Q100J, 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 74LVC594AD-Q100J part is unused and in its original packaging.
Return procedure for 74LVC594AD-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVC594AD-Q100J Tags
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