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Nexperia USA Inc. 74AHCT595PW-Q100,1
- Part No.:
- 74AHCT595PW-Q100,1
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Shift Registers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74AHCT595PW-Q100,1.pdf
- Description:
- IC SHIFT REG 8BIT SER 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,281
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Product details
Overview
74AHCT595PW-Q100 from Nexperia is an automotive-qualified 8-bit serial-in/parallel-out shift register with separate shift and storage registers, 3-state outputs, TTL-compatible inputs, and AEC-Q100 Grade 1 qualification (−40 °C to +125 °C). It features asynchronous master reset (MR), dual clocks (SHCP/STCP), serial output Q7S for cascading, and output enable (OE) for bus isolation - used in automotive LED matrix drivers and body control module I/O expansion.
For engineers reviewing the 74AHCT595PW-Q100 datasheet, 74AHCT595PW-Q100 pinout, 74AHCT595PW-Q100 application, or 74AHCT595PW-Q100 equivalent, key selection criteria include TTL-level input compatibility, 3-state output timing (enable/disable times ≤14.5 ns at VCC = 5 V), cascading capability via Q7S, and guaranteed operation across −40 °C to +125 °C with supply voltage from 4.5 V to 5.5 V.
Technical Context
This device implements a two-stage pipeline: an 8-bit shift register accepting serial data on SHCP rising edges, and an independent 8-bit storage latch transferring data on STCP rising edges - enabling concurrent shifting and latched output update. The separation prevents race conditions during continuous serial loading while maintaining stable parallel outputs.
Its TTL-compatible inputs (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V) interface directly with legacy microcontrollers and logic families without level translation, while overvoltage tolerance (up to 5.5 V) supports mixed-voltage board designs. OE controls all eight outputs simultaneously into high-impedance state without affecting internal register states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 8-bit serial-in/parallel-out shift register with storage latch and 3-state outputs |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures compatibility with 5 V automotive logic rails and robust noise margin |
| Operating Temperature | −40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood and powertrain applications |
| Max Clock Frequency | 90 MHz at VCC = 5 V - supports high-speed serial data loading in real-time control loops |
| Propagation Delay | ≤10.5 ns (STCP to Qn, CL = 50 pF, VCC = 5 V) - enables tight timing budgets in synchronized I/O expansion |
| Output Drive | ±8 mA (VOH/VOL specified at IO = ±8 mA) - sufficient to drive LEDs or CMOS inputs without external buffers |
| Enable/Disable Time | ten ≤13.0 ns, tdis ≤12.0 ns (CL = 50 pF, VCC = 5 V) - allows rapid bus arbitration in multi-device systems |
Pinout & Package
TSSOP16 plastic thin shrink small outline package (SOT403-1); 16 leads; body width 4.4 mm; lead pitch 0.65 mm; RoHS-compliant; suitable for automated optical inspection (AOI) and reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (Q0) | Parallel output stage 0 | LSB of latched 8-bit parallel output; driven only when OE = LOW |
| 2 (Q1) | Parallel output stage 1 | Second bit of latched output; electrically identical to Q0–Q7 |
| 3 (Q2) | Parallel output stage 2 | Third bit of latched output; shares same 3-state control as all Qn pins |
| 4 (Q3) | Parallel output stage 3 | Fourth bit of latched output; maintains state during OE HIGH |
| 5 (Q4) | Parallel output stage 4 | Fifth bit of latched output; unaffected by OE assertion |
| 6 (Q5) | Parallel output stage 5 | Sixth bit of latched output; retains value in storage register regardless of OE |
| 7 (Q6) | Parallel output stage 6 | Seventh bit of latched output; isolated from bus when OE = HIGH |
| 8 (GND) | Ground reference | Primary 0 V return path for all internal logic and output stages |
| 9 (Q7S) | Serial output | MSB of shift register; enables daisy-chaining multiple 74AHCT595 devices |
| 10 (MR) | Master reset | Asynchronous active-LOW reset of shift register only; storage register unaffected |
| 11 (SHCP) | Shift clock input | Rising-edge-triggered clock for serial data entry into shift register |
| 12 (STCP) | Storage clock input | Rising-edge-triggered clock transferring shift register contents to storage latch |
| 13 (OE) | Output enable | Active-LOW control enabling/disabling all Q0–Q7 outputs; no effect on registers |
| 14 (DS) | Serial data input | Data bit loaded into shift register LSB on next SHCP rising edge |
| 15 (Q7) | Parallel output stage 7 | MSB of latched parallel output; matches Q7S after STCP pulse |
| 16 (VCC) | Supply voltage | Positive supply rail (4.5–5.5 V); powers all logic and output drivers |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from −40 °C to +125 °C with full reliability testing per AEC standard |
| TTL-compatible input thresholds | VIH ≥ 2.0 V and VIL ≤ 0.8 V at VCC = 4.5–5.5 V - direct interface with 5 V MCU GPIOs and legacy logic |
| Overvoltage tolerant inputs | Withstands up to 5.5 V regardless of VCC - enables safe operation in mixed-supply systems |
| Dual independent clocks | Separate SHCP and STCP allow pipelined operation: shift new data while holding previous output stable |
| 3-state outputs with fast enable/disable | OE-controlled high-impedance outputs with ten/tdis ≤14.5 ns - minimizes bus contention in shared-data systems |
| Cascadable serial architecture | Q7S output provides clean MSB feed-through for unlimited daisy-chained expansion of parallel I/O |
Applications
| Automotive LED Matrix Driver | Body Control Module I/O Expansion |
|---|---|
|
Use Scenario: Driving 64-channel LED dashboard display using microcontroller with limited GPIO. IC Role / Device Role / Timing Role: Serial-to-parallel converter translating SPI data into 8-bit latched outputs; Q7S cascades to next stage. Use Value: Reduces MCU pin count by 7:1 per device; storage latch holds display data during serial refresh, eliminating flicker. |
Use Scenario: Adding 24 digital inputs/outputs to vehicle door module for window switches and mirror controls. IC Role / Device Role / Timing Role: I/O expander with asynchronous MR for fail-safe reset; OE enables shared bus communication with main ECU. Use Value: Enables hot-swap-safe I/O partitioning; 3-state outputs prevent signal contention during firmware updates. |
| Engine Control Unit Sensor Interface | ADAS Camera Power Sequencing |
|
Use Scenario: Reading status of 8 engine temperature and pressure sensors with precise timing alignment. IC Role / Device Role / Timing Role: Synchronized sampling node: SHCP clocks sensor data in, STCP captures snapshot into storage register on crankshaft sync pulse. Use Value: Eliminates metastability risk by decoupling acquisition and readout timing; deterministic latency ≤10.5 ns. |
Use Scenario: Controlling power-up sequence of multi-rail camera SoC requiring staggered 1.2 V, 1.8 V, and 2.8 V enables. IC Role / Device Role / Timing Role: Programmable delay generator: serially loaded pattern drives Q0–Q7 as timed enable signals with sub-microsecond resolution. Use Value: Replaces discrete RC timers; achieves repeatable, software-configurable sequencing across temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit shift register with storage latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74AHC595PW-Q100 | CMOS-input version (VIH = 3.85 V min at VCC = 5.5 V); lower ICC (4 μA typical vs. 40 μA for AHCT) | Better suited for low-power battery-backed modules; requires higher drive strength from controller | Select when interfacing with modern 3.3 V or mixed-voltage MCUs with CMOS outputs |
| SN74HC595QPWRQ1 | TI's AEC-Q100 Grade 1 variant; identical function but different timing specs (tpd = 25 ns max at 6 V) | Slower max frequency (25 MHz vs. 90 MHz); wider VCC range (2–6 V) | Choose when broader supply flexibility is needed and speed <25 MHz suffices |
Compared with 74AHC595PW-Q100, the AHCT version offers superior drive compatibility with legacy 5 V TTL systems, while SN74HC595QPWRQ1 trades speed for wider voltage tolerance - making 74AHCT595PW-Q100 optimal for high-speed, automotive-grade 5 V logic interfacing.
Availability
74AHCT595PW-Q100 is available at Aetrix Electronics and suitable for automotive LED driver systems, body control module I/O expansion, engine sensor interface circuits, and ADAS camera power sequencing requiring stable component supply across extended temperature ranges.
Supply support for 74AHCT595PW-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, reliable components for automotive, industrial, and consumer applications - with leadership in logic, analog, and MOSFET technologies.
The 74AHCT595-Q100 series belongs to Nexperia's automotive-qualified logic portfolio, designed specifically for robust, high-reliability serial-to-parallel data conversion in harsh environments like engine bays and chassis modules.
FAQ
What is the difference between SHCP and STCP in the 74AHCT595PW-Q100?
SHCP (shift clock) controls data entry into the 8-bit shift register on each rising edge, while STCP (storage clock) transfers the entire 8-bit content from the shift register into the output storage latch on its rising edge. This two-clock architecture enables continuous serial loading without disturbing the currently displayed parallel output - critical for glitch-free LED driving and real-time I/O control.
Can the 74AHCT595PW-Q100 be used with a 3.3 V microcontroller?
No - the 74AHCT595PW-Q100 requires VCC = 4.5–5.5 V and has TTL-compatible inputs (VIH ≥ 2.0 V), but its minimum high-level input voltage is not guaranteed below VCC = 4.5 V. For 3.3 V systems, use the 74AHC595PW-Q100 (CMOS-input version) or add level-shifting circuitry to ensure VIH compliance and avoid marginal switching behavior.
How does the MR (master reset) pin affect operation?
MR is an asynchronous active-LOW input that clears only the shift register - setting all internal shift stages to 0 - while leaving the storage register and parallel outputs (Q0–Q7) unchanged. This allows safe initialization of serial data flow without disrupting currently latched output states, supporting fail-safe recovery in automotive control modules.
Is Q7S truly usable for cascading multiple devices?
Yes - Q7S is the true serial output of the shift register's MSB stage and is fully buffered with timing specifications matching other outputs (tpd ≤10.5 ns at VCC = 5 V, CL = 50 pF). It drives the DS input of the next device in chain with verified setup/hold margins, enabling reliable daisy-chaining of up to 16+ stages in automotive lighting and display systems.
74AHCT595PW-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:
- Tri-State
- 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
74AHCT595PW-Q100,1 FAQ
1.How can I place an order for 74AHCT595PW-Q100,1 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT595PW-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 74AHCT595PW-Q100,1 reliable?
The price and inventory of 74AHCT595PW-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 74AHCT595PW-Q100,1 is usually 5 days.
3.What payment methods are accepted for 74AHCT595PW-Q100,1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT595PW-Q100,1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT595PW-Q100,1?
74AHCT595PW-Q100,1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT595PW-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 74AHCT595PW-Q100,1?
For technical support, including 74AHCT595PW-Q100,1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT595PW-Q100,1 requirements.
6.How does Aetrix verify that 74AHCT595PW-Q100,1 is sourced from the original manufacturer or authorized distributors?
All 74AHCT595PW-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 74AHCT595PW-Q100,1 meets industry standards.
7.What is the process for return or replacement of 74AHCT595PW-Q100,1?
All 74AHCT595PW-Q100,1 units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT595PW-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 74AHCT595PW-Q100,1 part is unused and in its original packaging.
Return procedure for 74AHCT595PW-Q100,1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74AHCT595PW-Q100,1 Tags
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SN74HC164DR
Texas Instruments
-
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.
-
SN74HC595PWR
Texas Instruments
-
74HC165D,653
Nexperia USA Inc.
-
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
Texas Instruments
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