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Nexperia USA Inc. 74AHCT594PW-Q100,1
- Part No.:
- 74AHCT594PW-Q100,1
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Shift Registers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74AHCT594PW-Q100,1.pdf
- Description:
- IC SHIFT REGISTER 8BIT 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,279
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Product details
Overview
74AHCT594PW-Q100 from Nexperia is an automotive-grade 8-bit serial-in, parallel-out shift register with independent storage register, TTL-compatible input thresholds (VIH = 2.0 V, VIL = 0.8 V), dual positive-edge clocks (SHCP/STCP), and active-low asynchronous resets (SHR/STR). It operates from -40 °C to +125 °C at 4.5–5.5 V supply and delivers ≤7.8 ns propagation delay (CL = 50 pF, VCC = 5 V), enabling high-speed serial-to-parallel data conversion in automotive body control modules.
For engineers reviewing the 74AHCT594PW-Q100 datasheet, 74AHCT594PW-Q100 pinout, 74AHCT594PW-Q100 application, or 74AHCT594PW-Q100 equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification, independent shift/storage clocking for precise timing control, Schmitt-trigger input noise immunity, overvoltage-tolerant inputs up to 5.5 V, and TSSOP16 package compatibility with automated optical inspection (AOI) via side-wettable flanks.
Technical Context
This device implements a two-stage architecture: an 8-bit shift register feeding an 8-bit D-type storage register, both clocked on rising edges but with fully independent SHCP and STCP inputs. The separation enables deterministic staging-e.g., serial data can be shifted in while previous data remains latched and stable on Q0–Q7 outputs.
It features dual asynchronous clears (SHR and STR), each affecting only its respective register stage without disturbing the other. Input logic levels conform to TTL standards (VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCC = 4.5–5.5 V), ensuring interoperability with legacy microcontroller GPIOs and automotive sensor interfaces without level-shifting.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 4.5 V to 5.5 V - Ensures robust operation across automotive battery transients (e.g., load dump, cold crank). |
| Operating temperature | -40 °C to +125 °C - Qualified per AEC-Q100 Grade 1 for under-hood and powertrain applications. |
| Propagation delay | ≤7.8 ns (STCP to Qn, CL = 50 pF, VCC = 5 V) - Supports >70 MHz clock rates for real-time LED matrix or relay bank updates. |
| Input threshold | VIH = 2.0 V, VIL = 0.8 V - Direct compatibility with 5 V TTL logic families and MCU outputs without pull-ups or translators. |
| Output drive | ±8 mA (VOH/VOL @ VCC = 4.5 V) - Sufficient to directly drive LEDs, small relays, or CMOS inputs without external buffers. |
| Power dissipation | ICC ≤ 80 μA (max, VCC = 5.5 V, all inputs static) - Enables low-quiescent-current designs in always-on vehicle subsystems. |
| ESD rating | HBM > 2000 V, CDM > 1000 V - Meets stringent automotive ESD immunity requirements for assembly and field operation. |
Pinout & Package
TSSOP16 plastic thin shrink small outline package (SOT403-1); 16 leads; body width 4.4 mm; side-wettable flanks for AOI-compliant solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 15 | Q0–Q7 | Parallel output terminals - Latched data from storage register; drive external loads directly. |
| 8 | GND | Ground reference - Must be low-impedance connection to minimize switching noise coupling. |
| 9 | Q7S | Serial output - Cascades to DS of next device for multi-byte shift chains (e.g., 24-bit LED driver). |
| 10 | SHR | Shift register reset - Active-low asynchronous clear; resets shift stage only, preserving storage register contents. |
| 11 | SHCP | Shift clock - Rising-edge triggered; advances serial data through shift register stages. |
| 12 | STCP | Storage clock - Rising-edge triggered; transfers current shift register contents to output latches (Q0–Q7). |
| 13 | STR | Storage register reset - Active-low asynchronous clear; blanks Q0–Q7 outputs without affecting shift register state. |
| 14 | DS | Data serial input - Accepts new bit on each SHCP rising edge; synchronized to internal shift logic. |
| 16 | VCC | Supply voltage - Decoupling capacitor (100 nF ceramic) required within 5 mm of pin for stable high-speed operation. |
Key Features
| Feature | Design Value |
|---|---|
| Independent shift/storage clocks | Enables pipelined operation: new data shifts in while previous data remains valid on outputs - critical for glitch-free display or actuator control. |
| AEC-Q100 Grade 1 qualification | Validated for automotive use from -40 °C to +125 °C ambient, including thermal cycling, humidity, and vibration stress testing. |
| Overvoltage-tolerant inputs | Accepts signals up to 5.5 V regardless of VCC level - simplifies interface to higher-voltage sensors or legacy systems without clamping diodes. |
| Schmitt-trigger inputs | Provides >0.5 V hysteresis on all control pins (SHCP, STCP, SHR, STR, DS), rejecting noise on long PCB traces or harness wiring. |
| TSSOP16 with side-wettable flanks | Enables automated optical inspection (AOI) of solder joints - improves manufacturing yield and reliability in automotive production lines. |
Applications
| Automotive Body Control Unit | LED Matrix Display Driver |
|---|---|
|
Use Scenario: Centralized control of door locks, window lifts, and interior lighting via microcontroller with limited GPIO count. IC Role / Device Role / Timing Role: Serial-to-parallel converter that expands MCU's 3-wire SPI interface into 8 individually controllable outputs for relays and drivers. Use Value: Reduces MCU pin count and PCB routing complexity while maintaining AEC-Q100 compliance and <10 ns timing precision for synchronized actuator sequencing. |
Use Scenario: Driving 8-segment alphanumeric displays or dynamic LED arrays in instrument clusters or center consoles. IC Role / Device Role / Timing Role: Output latch register that holds display data stable during serial refresh cycles, eliminating flicker. Use Value: Dual-register architecture ensures zero-glitch output updates; STR allows instant blanking for PWM dimming synchronization. |
| Remote Keyless Entry Receiver | Automotive HVAC Control Panel |
|
Use Scenario: Decoding and buffering RF-received command packets before processing by secure MCU. IC Role / Device Role / Timing Role: Holding register that captures incoming serial command bits and presents them in parallel to MCU data bus. Use Value: SHR/STR independence allows safe reset of shift stage during packet reception errors without corrupting previously validated commands. |
Use Scenario: Managing backlighting, button illumination, and status indicators across multi-zone climate control interfaces. IC Role / Device Role / Timing Role: Parallel output expander providing isolated, noise-immune drive for multiple LEDs and optocouplers. Use Value: Schmitt-trigger inputs reject EMI from nearby motors/blowers; overvoltage tolerance accommodates 5.5 V backlight drivers without protection circuitry. |
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 |
|---|---|---|---|
| 74AHC594PW-Q100 | CMOS input thresholds (VIH = 3.85 V @ VCC = 5.5 V); lower ICC (4 μA typ), wider VCC range (2.0–5.5 V) | Better suited for mixed-voltage systems (e.g., 3.3 V MCU driving 5 V peripherals) and ultra-low-power always-on nodes | Select when interfacing with 3.3 V logic or requiring extended supply flexibility; not drop-in for TTL-level sources. |
| SN74HC595QPWRQ1 | Single clock (SRCLK/RCLK), no independent SHR/STR; different pinout (Q7 vs Q7S); TI's AEC-Q100 Grade 1 variant | Lacks separate shift/storage control - limits pipelining capability; requires external logic for independent reset functions | Choose only if board layout rework is acceptable and dual-clock timing control is unnecessary; verify Q7S cascade compatibility. |
Compared with 74AHC594PW-Q100, the 74AHCT594PW-Q100 offers guaranteed TTL-level input compatibility essential for legacy automotive modules, while SN74HC595QPWRQ1 sacrifices architectural flexibility for TI ecosystem alignment - making the Nexperia part optimal where precise staging and noise-hardened TTL interfacing are mandatory.
Availability
74AHCT594PW-Q100 is available at Aetrix Electronics and suitable for automotive body control units, LED matrix displays, remote keyless entry receivers, and HVAC control panels requiring stable component supply across extended temperature ranges and AEC-Q100-compliant traceability.
Supply support for 74AHCT594PW-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, reliable logic, analog, and discrete components optimized for automotive, industrial, and consumer applications.
This device belongs to Nexperia's automotive-qualified logic portfolio, designed specifically to meet stringent AEC-Q100 requirements for functional safety-critical subsystems in modern vehicles.
FAQ
Can 74AHCT594PW-Q100 operate at 3.3 V supply?
No. The 74AHCT594PW-Q100 is TTL-input compatible and specified only for 4.5–5.5 V operation. Its VIH minimum is 2.0 V, but VCC must be ≥4.5 V to guarantee correct logic thresholds and output drive strength. For 3.3 V systems, use the pin-compatible 74AHC594PW-Q100 instead.
What is the purpose of the Q7S pin?
Q7S is the serial output of the shift register stage, carrying the bit shifted out of Q7. It enables daisy-chaining multiple 74AHCT594 devices: Q7S of one IC connects to DS of the next, allowing expansion beyond 8 bits without additional MCU GPIOs or complex firmware.
How do SHR and STR interact during simultaneous assertion?
SHR and STR are fully independent. Asserting SHR clears only the shift register (stages 0–7), leaving Q0–Q7 outputs unchanged. Asserting STR clears only the storage register, forcing Q0–Q7 LOW immediately. Both can be asserted simultaneously without conflict - the outputs reflect STR action, while shift register state resets separately.
Is the TSSOP16 package suitable for reflow soldering in automotive production?
Yes. The SOT403-1 package supports standard lead-free reflow profiles (J-STD-020), and its side-wettable flanks are explicitly designed for post-reflow AOI verification - a requirement for IATF 16949-compliant automotive manufacturing lines.
74AHCT594PW-Q100,1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
74AHCT594PW-Q100,1 FAQ
1.How can I place an order for 74AHCT594PW-Q100,1 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT594PW-Q100,1 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 74AHCT594PW-Q100,1 reliable?
The price and inventory of 74AHCT594PW-Q100,1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT594PW-Q100,1 is usually 5 days.
3.What payment methods are accepted for 74AHCT594PW-Q100,1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT594PW-Q100,1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT594PW-Q100,1?
74AHCT594PW-Q100,1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT594PW-Q100,1 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 74AHCT594PW-Q100,1?
For technical support, including 74AHCT594PW-Q100,1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT594PW-Q100,1 requirements.
6.How does Aetrix verify that 74AHCT594PW-Q100,1 is sourced from the original manufacturer or authorized distributors?
All 74AHCT594PW-Q100,1 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 74AHCT594PW-Q100,1 meets industry standards.
7.What is the process for return or replacement of 74AHCT594PW-Q100,1?
All 74AHCT594PW-Q100,1 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT594PW-Q100,1, 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 74AHCT594PW-Q100,1 part is unused and in its original packaging.
Return procedure for 74AHCT594PW-Q100,1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74AHCT594PW-Q100,1 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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SN74HC165PWR
Texas Instruments
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HEF4094BT,653
Nexperia USA Inc.
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74HC595D,118
Nexperia USA Inc.
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SN74HC595PWR
Texas Instruments
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74HC165D,653
Nexperia USA Inc.
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SN74LV165APWR
Texas Instruments
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74HC595BQ,115
Nexperia USA Inc.
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74HC165BQ,115
Nexperia USA Inc.
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CD4094BPWR
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