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Nexperia USA Inc. 74AHCT164BQ-Q100X
- Part No.:
- 74AHCT164BQ-Q100X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Shift Registers
- Package:
- 14-VFQFN Exposed Pad
- Datasheet:
-
74AHCT164BQ-Q100X.pdf
- Description:
- IC SHIFT REGISTER 8BIT 14DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,579
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Product details
Overview
74AHCT164BQ-Q100 from Nexperia is an automotive-grade 8-bit serial-in/parallel-out shift register with dual active-HIGH data inputs (DSA, DSB), eight CMOS-compatible parallel outputs (Q0–Q7), edge-triggered clock (CP), and asynchronous master reset (MR). It operates from 4.5 V to 5.5 V, supports -40 °C to +125 °C ambient range, and features overvoltage-tolerant inputs up to 5.5 V-enabling mixed-voltage interfacing in body control modules and lighting drivers.
For engineers reviewing the 74AHCT164BQ-Q100 datasheet, 74AHCT164BQ-Q100 pinout, 74AHCT164BQ-Q100 application, or 74AHCT164BQ-Q100 equivalent, key selection criteria include TTL-level input compatibility, DHVQFN14 package with side-wettable flanks for AOI, propagation delay ≤11.5 ns at 5 V/50 pF, MR-to-Qn timing ≤11.0 ns, and AEC-Q100 Grade 1 qualification for under-hood automotive use.
Technical Context
This device implements a synchronous 8-stage shift register using positive-edge-triggered D-type flip-flops, where data enters serially via either DSA or DSB-each acting as an enable for the other-and shifts on the LOW-to-HIGH transition of CP. The MR input asynchronously clears all stages to logic LOW independent of clock or data state.
Input thresholds are TTL-compatible (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), output drive capability is ±8 mA, and Schmitt-trigger action on all inputs ensures robust noise immunity. The DHVQFN14 package (SOT762-1) provides thermal enhancement and solder-joint inspection capability via side-wettable flanks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 8-bit serial-in/parallel-out shift register with dual data enables and asynchronous reset |
| Supply Voltage Range | 4.5 V to 5.5 V - compatible with 5 V automotive power rails and tolerant of transient overvoltage |
| Operating Temperature | -40 °C to +125 °C - qualified for engine bay and transmission control unit environments |
| Propagation Delay (tpd) | ≤11.5 ns at VCC = 5 V, CL = 50 pF - enables reliable operation up to 65 MHz in high-speed control loops |
| Input Logic Type | TTL-compatible - interfaces directly with legacy microcontrollers and discrete logic without level-shifting |
| AEC-Q100 Grade | Grade 1 - certified for automotive applications requiring operation up to +125 °C ambient |
| ESD Protection | HBM >2000 V, CDM >1000 V - withstands handling and board assembly stress in production environments |
Pinout & Package
DHVQFN14 package (SOT762-1), 2.5 × 3.0 × 0.85 mm body, no leads, 14 terminals, side-wettable flanks for automated optical inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DSA) | Serial data input A | Primary serial data path; active HIGH - enables data entry through DSB when asserted |
| 2 (DSB) | Serial data input B | Secondary serial data path; active HIGH - enables data entry through DSA when asserted |
| 3 (Q0) | Parallel output 0 | LSB of shifted data; drives external LED driver or GPIO expander stage |
| 4 (Q1) | Parallel output 1 | Second bit of parallel output bus; synchronized to CP edge with ≤11.5 ns delay |
| 5 (Q2) | Parallel output 2 | Third bit; maintains balanced propagation across all Q0–Q7 outputs |
| 6 (Q3) | Parallel output 3 | Fourth bit; Schmitt-trigger inputs ensure noise margin ≥0.7 V at 5 V supply |
| 7 (GND) | Ground reference | 0 V return path for all internal logic and output drivers; thermal pad not electrically required |
| 8 (CP) | Clock input | LOW-to-HIGH edge-triggered; minimum pulse width 5.0 ns ensures reliable sampling at 100 MHz |
| 9 (MR) | Master reset | Asynchronous active-LOW; forces all Q0–Q7 to logic LOW within ≤11.0 ns, independent of CP |
| 10 (Q4) | Parallel output 4 | Fifth bit; designed for fanout of ≥10 LS-TTL loads at 5 V |
| 11 (Q5) | Parallel output 5 | Sixth bit; output voltage swing guaranteed VOH ≥3.70 V / VOL ≤0.55 V at 8 mA load |
| 12 (Q6) | Parallel output 6 | Seventh bit; latch-up immunity >100 mA per JESD78 Class II Level A ensures system robustness |
| 13 (Q7) | Parallel output 7 | MSB of parallel output; matches timing skew across all outputs to <1.5 ns |
| 14 (VCC) | Supply voltage | 5 V nominal rail; overvoltage tolerance to 7.0 V absolute maximum prevents damage during load dump |
Key Features
| Feature | Design Value |
|---|---|
| TTL-level input compatibility | VIH = 2.0 V min, VIL = 0.8 V max at 5 V - eliminates need for external level translators when interfacing with legacy MCU GPIOs |
| Side-wettable flanks (DHVQFN) | SOT762-1 package enables 100% automated optical inspection of solder joints - critical for zero-defect automotive manufacturing |
| Asynchronous master reset | MR asserts within 2.5 ns setup time and clears all outputs to LOW in ≤11.0 ns - guarantees known state at power-up or fault recovery |
| Overvoltage-tolerant inputs | Withstands 5.5 V input signals even when VCC = 4.5 V - supports hot-swap and mixed-supply interconnect in gateway ECUs |
| High noise immunity | Schmitt-trigger inputs with hysteresis ≥0.4 V at 5 V - suppresses EMI-induced glitches in noisy chassis environments |
Applications
| Automotive Body Control Module | LED Lighting Driver Interface |
|---|---|
Use Scenario: Centralized control of door lock actuators, mirror positioners, and interior lighting via microcontroller with limited GPIO count. IC Role / Device Role / Timing Role: Serial-to-parallel translation of command bytes into 8-channel ON/OFF control signals; clocked by MCU SPI SCLK or general-purpose timer output. Use Value: Reduces MCU pin count by 7× versus direct GPIO control while maintaining deterministic 11.5 ns output timing for synchronized actuator activation. |
Use Scenario: Driving 8-channel LED strings in headlamp or tail lamp assemblies with PWM dimming and fault reporting. IC Role / Device Role / Timing Role: Shift register stage feeding constant-current LED drivers; MR used for emergency shutdown during thermal fault detection. Use Value: Enables single-wire serial update of LED states at >1 MHz, with overvoltage-tolerant DSA/DSB accepting 5.5 V diagnostic signals from CAN transceiver I/O pins. |
| Instrument Cluster Display Backlight | Power Distribution Unit Sequencing |
Use Scenario: Controlling brightness and segment enablement of TFT LCD backlight LEDs in digital instrument clusters. IC Role / Device Role / Timing Role: Parallel output stage buffering PWM-modulated signals to LED boost converters; CP synchronized to cluster MCU's display refresh interrupt. Use Value: Guarantees sub-12 ns output skew across all 8 channels, eliminating visible flicker or banding during rapid brightness transitions. |
Use Scenario: Enabling 8 isolated 12 V power rails in ADAS domain controllers with controlled startup sequencing and fault isolation. IC Role / Device Role / Timing Role: Output-enable staging for high-side switches; MR tied to system watchdog timeout signal for safe power-down. Use Value: Provides deterministic 11.0 ns MR-to-output clearance, ensuring all downstream rails de-energize within 15 ns of fault detection. |
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 |
|---|---|---|---|
| 74AHC164BQ-Q100 | CMOS-level inputs (VIH = 3.85 V min at 5.5 V); lower ICC (4 μA typ) | Better suited for 3.3 V–5.5 V mixed-supply systems with CMOS microcontrollers | Select when interfacing with 3.3 V FPGAs or ARM Cortex-M peripherals requiring CMOS thresholds |
| SN74LV164APWRE4 | TTL-compatible inputs, but only qualified to AEC-Q100 Grade 3 (-40 °C to +85 °C); TSSOP14 package lacks side-wettable flanks | Limited to cabin electronics (infotainment, HVAC) due to temperature grade and inspection limitations | Choose only for cost-sensitive non-under-hood applications where AOI is not mandated |
Compared with 74AHC164BQ-Q100 and SN74LV164APWRE4, the 74AHCT164BQ-Q100 uniquely combines AEC-Q100 Grade 1 qualification, DHVQFN14 with AOI support, and native TTL input compatibility-making it the sole option for safety-critical, high-temperature, high-reliability serial expansion in modern automotive ECUs.
Availability
74AHCT164BQ-Q100 is available at Aetrix Electronics and suitable for automotive body control modules, LED lighting drivers, instrument cluster backlighting, and power distribution unit sequencing requiring stable component supply across extended temperature ranges and full AEC-Q100 compliance.
Supply support for 74AHCT164BQ-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 specializing in high-performance, high-reliability logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74AHCT164BQ-Q100 belongs to Nexperia's automotive-qualified logic portfolio, engineered specifically for serial data expansion in harsh-environment electronic control units where AEC-Q100 Grade 1 reliability, mixed-voltage interoperability, and manufacturability are mandatory.
FAQ
Is the 74AHCT164BQ-Q100 pin-compatible with the 74AHC164BQ-Q100?
Yes-both share identical DHVQFN14 (SOT762-1) pinout, terminal numbering, and functional block diagram. The only differences are input threshold levels (TTL vs. CMOS) and static current draw; no PCB redesign is needed when swapping between them in existing layouts.
Can DSA and DSB be driven simultaneously with different logic levels?
No-driving both DSA and DSB HIGH simultaneously violates the function table and results in undefined output behavior. The device requires one input to be HIGH (enabling the other) and the other to carry data; simultaneous assertion is not a supported operating mode.
What is the purpose of the exposed thermal pad on the DHVQFN14 package?
The exposed pad (terminal 1 index area) has no electrical function and requires no solder connection. If soldered, it must remain electrically floating or be connected to GND; its primary role is mechanical stability and thermal dissipation-not signal integrity or grounding.
Does the MR pin require a pull-up resistor in automotive systems?
Yes-a 10 kΩ pull-up to VCC is recommended to ensure MR remains HIGH during power-up and prevents unintended register clearing. The device does not include internal pull-ups, and automotive power sequencing often causes MR to float momentarily during ramp-up.
74AHCT164BQ-Q100X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74AHCT
- Package/Case:
- 14-VFQFN Exposed Pad
- 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
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-DHVQFN (2.5x3)
74AHCT164BQ-Q100X FAQ
1.How can I place an order for 74AHCT164BQ-Q100X through Aetrix?
Please submit a Request for Quotation (RFQ) for 74AHCT164BQ-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 74AHCT164BQ-Q100X reliable?
The price and inventory of 74AHCT164BQ-Q100X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74AHCT164BQ-Q100X is usually 5 days.
3.What payment methods are accepted for 74AHCT164BQ-Q100X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74AHCT164BQ-Q100X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74AHCT164BQ-Q100X?
74AHCT164BQ-Q100X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74AHCT164BQ-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 74AHCT164BQ-Q100X?
For technical support, including 74AHCT164BQ-Q100X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74AHCT164BQ-Q100X requirements.
6.How does Aetrix verify that 74AHCT164BQ-Q100X is sourced from the original manufacturer or authorized distributors?
All 74AHCT164BQ-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 74AHCT164BQ-Q100X meets industry standards.
7.What is the process for return or replacement of 74AHCT164BQ-Q100X?
All 74AHCT164BQ-Q100X units undergo pre-shipment inspection (PSI). If there is an issue with 74AHCT164BQ-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 74AHCT164BQ-Q100X part is unused and in its original packaging.
Return procedure for 74AHCT164BQ-Q100X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74AHCT164BQ-Q100X Tags
-
SN74HC164DR
Texas Instruments
-
SN74HC595DR
Texas Instruments
-
74HC595PW,118
Nexperia USA Inc.
-
SN74HC165PWR
Texas Instruments
-
HEF4094BT,653
Nexperia USA Inc.
-
74HC595D,118
Nexperia USA Inc.
-
SN74HC595PWR
Texas Instruments
-
74HC165D,653
Nexperia USA Inc.
-
SN74LV165APWR
Texas Instruments
-
74HC595BQ,115
Nexperia USA Inc.
-
74HC165BQ,115
Nexperia USA Inc.
-
CD4094BPWR
Texas Instruments
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