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Nexperia USA Inc. 74HC594PW-Q100J
- Part No.:
- 74HC594PW-Q100J
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Shift Registers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HC594PW-Q100J.pdf
- Description:
- 74HC594PW-Q100/SOT403/TSSOP16
- Quantity:
- Payment:
- Shipping:
Inventory:2,054
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Product details
Overview
74HC594PW-Q100 from Nexperia is an AEC-Q100 Grade 1 qualified 8-bit serial-in/parallel-out shift register with independent shift and storage registers, CMOS-level inputs, 2.0–6.0 V supply range, and TSSOP16 package. It enables synchronous serial-to-parallel data conversion in automotive body control modules, LED driver interfaces, and remote control holding registers via cascaded Q7S output and parallel Q0–Q7 outputs.
For engineers reviewing the 74HC594PW-Q100 datasheet, 74HC594PW-Q100 pinout, 74HC594PW-Q100 application, or 74HC594PW-Q100 equivalent, key selection considerations include independent SHCP/STCP clocks for pipeline control, active-low SHR/STR reset pins, 100 MHz typical max clock frequency at VCC = 6.0 V, and -40 °C to +125 °C automotive temperature operation.
Technical Context
The device implements a two-stage architecture: an 8-bit shift register accepting serial data on DS with LOW-to-HIGH SHCP transitions, and a separate 8-bit storage register loaded on LOW-to-HIGH STCP edges. This decoupling allows continuous serial shifting while holding stable parallel outputs - critical for glitch-free LED column driving and display multiplexing.
Each register has dedicated asynchronous reset (SHR, STR), enabling independent clearing without disrupting the other stage. Input clamp diodes permit safe interfacing to voltages exceeding VCC when used with current-limiting resistors, supporting mixed-voltage system integration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 8-bit serial-in/parallel-out shift register with output storage register and serial cascade (Q7S) |
| Supply Voltage Range | 2.0 V to 6.0 V - supports direct interface with 3.3 V and 5 V logic domains without level shifters |
| Max Clock Frequency | 100 MHz (typical at VCC = 6.0 V) - enables high-speed data loading for real-time lighting control |
| Operating Temperature | -40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood and cabin automotive applications |
| Input Logic Type | CMOS-level compatible - VIH ≥ 0.7×VCC, VIL ≤ 0.3×VCC, ensuring noise-immune operation in noisy vehicle environments |
| Output Drive Strength | ±35 mA per parallel output (Q0–Q7), ±25 mA on Q7S - sufficient to directly drive LEDs or small logic loads |
| Propagation Delay | 14 ns (typ, VCC = 6.0 V) from STCP to Qn - ensures precise timing alignment in synchronized display systems |
Pinout & Package
TSSOP16 package (SOT403-1), 4.4 mm body width, 0.65 mm lead pitch, surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Q0) | Parallel output bit 0 | LSB of 8-bit latch output; driven after STCP edge; holds value until next STCP pulse |
| 2 (Q1) | Parallel output bit 1 | Second bit of storage register output; synchronized to STCP, not SHCP |
| 3 (Q2) | Parallel output bit 2 | Third bit of latched parallel output; immune to ongoing shift register activity |
| 4 (Q3) | Parallel output bit 3 | Fourth bit of stable output bank; enables simultaneous update of all 8 bits |
| 5 (Q4) | Parallel output bit 4 | Fifth bit of parallel output; isolated from shift register by storage register boundary |
| 6 (Q5) | Parallel output bit 5 | Sixth bit of latch output; maintains state during serial data loading |
| 7 (Q6) | Parallel output bit 6 | Seventh bit of parallel output; supports 8-bit wide data distribution |
| 8 (GND) | Ground reference | Primary return path for all internal logic and output currents; must be low-impedance |
| 9 (Q7S) | Serial output (Q7) | MSB of shift register only - used for daisy-chaining multiple 74HC594 devices |
| 10 (SHR) | Shift register reset | Active-low asynchronous clear of shift register only; does not affect storage register contents |
| 11 (SHCP) | Shift register clock | LOW-to-HIGH edge shifts DS into stage 0 and advances prior data; controls serial load rate |
| 12 (STCP) | Storage register clock | LOW-to-HIGH edge transfers all 8 bits from shift register to output latches; updates Q0–Q7 |
| 13 (STR) | Storage register reset | Active-low asynchronous clear of storage register only; blanks parallel outputs immediately |
| 14 (DS) | Serial data input | Data sampled on SHCP rising edge; first bit enters shift register LSB position (stage 0) |
| 15 (Q7) | Parallel output bit 7 | MSB of latched parallel output; mirrors Q7S only after STCP pulse; provides stable output |
| 16 (VCC) | Positive supply | Power rail for both logic and output drivers; bypass capacitor required near pin for noise suppression |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from -40 °C to +125 °C ambient, including lifetime reliability testing |
| Independent shift and storage clocks | Enables continuous serial data streaming while holding stable parallel outputs - eliminates output glitches |
| Dual asynchronous reset (SHR/STR) | Allows selective clearing of shift or storage register without disturbing the other - improves system fault recovery |
| Clamp diode-equipped inputs | Permits safe connection to signals up to VCC + 0.5 V using external current-limiting resistors |
| Wide VCC range (2.0–6.0 V) | Supports direct integration with 3.3 V microcontrollers and 5 V peripheral buses without voltage translation |
| Q7S serial cascade output | Enables unlimited expansion of parallel I/O using daisy-chained devices - reduces MCU GPIO count |
Applications
| Automotive Body Control Unit | LED Matrix Display Driver |
|---|---|
|
Use Scenario: Controlling door lock actuators, mirror positioning motors, and interior lighting zones via microcontroller GPIO expansion. IC Role / Device Role / Timing Role: Serial-to-parallel converter that translates SPI-like serial commands into 8-bit parallel enable signals synchronized to STCP for deterministic actuator activation. Use Value: Reduces MCU pin count by 7× versus direct GPIO control while maintaining AEC-Q100 compliance and glitch-free output transitions. |
Use Scenario: Driving 8-column segments of a multiplexed 8×8 LED matrix in automotive instrument clusters. IC Role / Device Role / Timing Role: Storage register holds column data while shift register loads next column; STCP triggers simultaneous column update to prevent flicker. Use Value: Enables precise column blanking and brightness control via PWM on Q0–Q7, with Q7S cascading to row drivers for full display control. |
| Remote Keyless Entry Receiver | Industrial Sensor Interface Hub |
|
Use Scenario: Latching decoded RF packet payload bits (e.g., button press codes) for secure validation before MCU processing. IC Role / Device Role / Timing Role: Holding register that captures incoming serial data stream from demodulator and presents it as stable parallel byte on Q0–Q7. Use Value: Provides deterministic setup/hold timing (DS to SHCP: 4 ns min at VCC = 6.0 V) for reliable capture of short RF bursts in noisy environments. |
Use Scenario: Aggregating status bits from 8 discrete industrial sensors (e.g., limit switches, proximity detectors) into a single parallel bus for PLC input scanning. IC Role / Device Role / Timing Role: Parallel output latch that isolates sensor inputs from PLC scan cycle jitter; STR resets latch on system power-up. Use Value: Eliminates need for polling or interrupt-driven sampling - each sensor state is available synchronously on Q0–Q7 with <15 ns propagation delay. |
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 |
|---|---|---|---|
| 74HCT594PW-Q100 | TTL-compatible inputs (VIH = 2.0 V min), identical pinout and function | Better interoperability with legacy 5 V TTL logic; slightly higher ICC at VCC = 5.5 V | Select when interfacing with older 5 V microcontrollers or logic families requiring TTL thresholds |
| SN74HC595PWR | Non-automotive grade; no AEC-Q100 qualification; same functional block but STR pin omitted (no storage reset) | Limited to commercial/industrial use; lacks STR for independent storage register clear | Use only in non-automotive designs where AEC-Q100 is not required and STR functionality is unnecessary |
Compared with 74HC594PW-Q100, the 74HCT594PW-Q100 offers guaranteed TTL input compatibility at the cost of marginally higher static current, while the SN74HC595PWR sacrifices automotive qualification and storage reset capability for lower cost in non-critical applications.
Availability
74HC594PW-Q100 is available at Aetrix Electronics and suitable for automotive body electronics, LED lighting control systems, and industrial sensor aggregation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HC594PW-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 with focus on efficiency, reliability, and automotive-grade quality.
The 74HC594-Q100 belongs to Nexperia's automotive-qualified logic portfolio, designed specifically for robust serial-to-parallel data conversion in harsh-temperature vehicle subsystems where functional safety and long-term supply stability are mandatory.
FAQ
What is the difference between SHCP and STCP in the 74HC594PW-Q100?
SHCP (shift clock) controls data movement within the 8-bit shift register on each LOW-to-HIGH transition, while STCP (storage clock) transfers the entire 8-bit content from the shift register to the output storage register on its LOW-to-HIGH edge. This separation allows continuous serial loading without affecting currently displayed parallel outputs.
Can the 74HC594PW-Q100 drive LEDs directly?
Yes - each parallel output (Q0–Q7) delivers ±35 mA at VCC = 6.0 V, sufficient to drive standard 20 mA LEDs with appropriate series resistors. Q7S provides ±25 mA for cascading. Output voltage drop remains ≤0.4 V at 6 mA load, ensuring adequate forward bias across common LED types.
Is the 74HC594PW-Q100 pin-compatible with the SN74HC595?
No - although both are 8-bit shift registers with Q7S cascade, the 74HC594PW-Q100 includes dedicated STR (storage reset) and SHR (shift reset) pins (pins 13 and 10), whereas the SN74HC595 uses pin 10 as OE (output enable). Their pin functions and assignments differ, preventing direct replacement.
Does the 74HC594PW-Q100 require external pull-up or pull-down resistors on control pins?
No - all inputs (SHCP, STCP, SHR, STR, DS) have internal clamp diodes and defined VIH/VIL thresholds. With proper VCC bypassing and clean signal sources, external biasing resistors are unnecessary. However, floating inputs must be avoided; unused control pins should be tied to VCC or GND.
74HC594PW-Q100J Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 16-TSSOP (0.173", 4.40mm 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:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
74HC594PW-Q100J FAQ
1.How can I place an order for 74HC594PW-Q100J through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC594PW-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 74HC594PW-Q100J reliable?
The price and inventory of 74HC594PW-Q100J are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC594PW-Q100J is usually 5 days.
3.What payment methods are accepted for 74HC594PW-Q100J?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC594PW-Q100J transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC594PW-Q100J?
74HC594PW-Q100J orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC594PW-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 74HC594PW-Q100J?
For technical support, including 74HC594PW-Q100J datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC594PW-Q100J requirements.
6.How does Aetrix verify that 74HC594PW-Q100J is sourced from the original manufacturer or authorized distributors?
All 74HC594PW-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 74HC594PW-Q100J meets industry standards.
7.What is the process for return or replacement of 74HC594PW-Q100J?
All 74HC594PW-Q100J units undergo pre-shipment inspection (PSI). If there is an issue with 74HC594PW-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 74HC594PW-Q100J part is unused and in its original packaging.
Return procedure for 74HC594PW-Q100J:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HC594PW-Q100J Tags
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SN74HC164DR
Texas Instruments
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SN74HC595DR
Texas Instruments
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74HC595PW,118
Nexperia USA Inc.
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Nexperia USA Inc.
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SN74HC595PWR
Texas Instruments
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74HC165D,653
Nexperia USA Inc.
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SN74LV165APWR
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74HC595BQ,115
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74HC165BQ,115
Nexperia USA Inc.
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CD4094BPWR
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