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Nexperia USA Inc. 74HCT164BQ-Q100X
- Part No.:
- 74HCT164BQ-Q100X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Shift Registers
- Package:
- 14-VFQFN Exposed Pad
- Datasheet:
-
74HCT164BQ-Q100X.pdf
- Description:
- IC 8BIT SHIFT REGISTER
- Quantity:
- Payment:
- Shipping:
Inventory:1,626
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Product details
Overview
74HCT164BQ-Q100 from Nexperia is an automotive-grade 8-bit serial-in/parallel-out shift register with TTL-compatible inputs, dual gated serial data inputs (DSA/DSB), asynchronous master reset (MR), and edge-triggered clock (CP) operating from 4.5 V to 5.5 V. It delivers 8 parallel outputs (Q0–Q7), supports −40 °C to +125 °C operation, and is qualified to AEC-Q100 Grade 1 for engine control and body electronics.
For engineers reviewing the 74HCT164BQ-Q100 datasheet, 74HCT164BQ-Q100 pinout, 74HCT164BQ-Q100 application, or 74HCT164BQ-Q100 equivalent, this device is selected for serial-to-parallel expansion in space-constrained automotive modules where low-power CMOS logic, noise immunity, and guaranteed reset behavior are required.
Technical Context
The device implements an 8-stage D-type flip-flop chain with synchronous serial loading and asynchronous clear. Data shifts on LOW-to-HIGH clock transitions, and either DSA or DSB can serve as an active-HIGH enable for the other-enabling flexible serial data routing without external gating logic. The MR input forces all Q outputs LOW independently of CP or data inputs.
Input clamp diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors. The DHVQFN14 package (SOT762-1) features side-wettable flanks for AOI-compatible solder joint inspection-critical for automotive production traceability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 8-bit serial-in/parallel-out shift register with gated dual data inputs and asynchronous reset |
| Supply voltage | 4.5 V to 5.5 V - matches standard automotive 5 V rail with margin for ripple and drop |
| Operating temperature | −40 °C to +125 °C - qualified for under-hood and powertrain applications per AEC-Q100 Grade 1 |
| Propagation delay (CP to Q) | 17 ns (typ) at VCC = 4.5 V - enables reliable timing up to 27 MHz max clock frequency |
| Input compatibility | TTL-level inputs - interfaces directly with legacy microcontroller GPIOs and 5 V logic families |
| Output drive | ±4.0 mA (VOH/VOL) at VCC = 4.5 V - sufficient to drive LED segments or small-signal logic loads |
| Power dissipation | CPD = 40 pF - enables accurate dynamic power estimation for thermal design in dense PCB layouts |
Pinout & Package
DHVQFN14 package (SOT762-1), 2.5 × 3 × 0.85 mm body, no leads, 14 terminals, side-wettable flanks for AOI. Exposed thermal pad (terminal 1 index area) may be left floating or connected to GND per layout requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DSA) | Serial data input A | Primary serial input; active HIGH enable for DSB when DSA is asserted |
| 2 (DSB) | Serial data input B | Secondary serial input; enabled only when DSA is HIGH - allows data selection via control signal |
| 3 (Q0) | Parallel output 0 | LSB of 8-bit parallel word; shifts first after initial clock edge |
| 4 (Q1) | Parallel output 1 | Second bit in shift chain; synchronized to same clock edge as Q0 |
| 5 (Q2) | Parallel output 2 | Third stage output; maintains deterministic bit ordering across temperature |
| 6 (Q3) | Parallel output 3 | Mid-chain output; stable propagation delay ensures predictable timing skew ≤ 3 ns |
| 7 (GND) | Ground reference | 0 V return path for all internal logic and I/O; must be low-impedance for noise immunity |
| 8 (CP) | Clock input | Edge-triggered; data latched on LOW-to-HIGH transition - immune to glitches on falling edge |
| 9 (MR) | Master reset | Asynchronous active-LOW; clears all Q outputs immediately regardless of CP or data state |
| 10 (Q4) | Parallel output 4 | Fifth bit; output valid within 19 ns (max) after MR deassertion at VCC = 4.5 V |
| 11 (Q5) | Parallel output 5 | Sixth bit; meets setup/hold times (tsu = 12 ns, th = +4 ns) for 5 V MCU interface |
| 12 (Q6) | Parallel output 6 | Seventh bit; VOL ≤ 0.26 V at 4 mA load ensures solid LOW recognition by downstream CMOS inputs |
| 13 (Q7) | Parallel output 7 | MSB; VOH ≥ 3.98 V at 4 mA load guarantees robust HIGH level for 5 V logic thresholds |
| 14 (VCC) | Positive supply | Primary power rail; decoupling capacitor required within 3 mm for stable switching performance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use from −40 °C to +125 °C with full reliability testing (HTOL, TC, UHAST) |
| Gated dual serial inputs | DSA and DSB provide hardware-selectable data path - eliminates need for external multiplexer in multi-source systems |
| Asynchronous master reset | MR forces Q0–Q7 LOW within 19 ns (max) at VCC = 4.5 V - ensures deterministic startup and fault recovery |
| Side-wettable flanks (DHVQFN) | SOT762-1 package enables automated optical inspection of solder joints - critical for zero-defect automotive manufacturing |
| TTL-compatible input thresholds | VIH = 2.0 V (min), VIL = 0.8 V (max) at VCC = 4.5 V - interoperable with legacy 5 V microcontrollers and logic families |
Applications
| Engine Control Unit (ECU) I/O Expansion | Automotive Lighting Controller |
|---|---|
|
Use Scenario: Expanding GPIO count on a 32-bit MCU to drive 8-channel LED tail lamps with individual brightness control via PWM. IC Role / Device Role / Timing Role: Serial-to-parallel converter that accepts SPI-like bitstream from MCU and presents static 8-bit parallel output synchronized to CP edge. Use Value: Reduces MCU pin count by 7 (vs. direct GPIO), supports daisy-chained configuration for multi-lamp modules, and provides glitch-free output during reset. |
Use Scenario: Driving segmented dashboard indicators (fuel, oil, battery) in a cluster module requiring ESD-hardened, high-reliability logic. IC Role / Device Role / Timing Role: Level-shifting and serialization interface between 3.3 V MCU and 5 V indicator drivers, with MR ensuring known state at power-up. Use Value: Eliminates discrete level shifters; input clamp diodes tolerate transient overvoltage; AEC-Q100 qualification ensures field durability. |
| Body Control Module (BCM) Switch Monitoring | ADAS Camera Power Sequencing |
|
Use Scenario: Scanning 8 mechanical door switch inputs in a BCM using serial polling to minimize wiring harness complexity. IC Role / Device Role / Timing Role: Parallel-to-serial shift register (used in reverse via feedback loop) - but here configured as serial-in/parallel-out to decode switch states into parallel bus. Use Value: Enables single-wire daisy chain for 8 switches; MR allows forced reset during wake-up from sleep mode; low ICC (< 80 μA) extends battery life. |
Use Scenario: Sequencing power-enable signals to multiple image sensors in a surround-view camera system with strict timing margins. IC Role / Device Role / Timing Role: Timing-critical parallel output generator that asserts EN1–EN8 in precise order based on serialized command stream from safety MCU. Use Value: Propagation delay variation < 3 ns across Q0–Q7 ensures inter-sensor power-on skew < 5 ns - meeting ISO 26262 ASIL-B timing constraints. |
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 |
|---|---|---|---|
| 74HC164BQ-Q100 | CMOS-level inputs (VIH = 3.15 V min at VCC = 4.5 V); wider VCC range (2.0–6.0 V) | Better suited for mixed-voltage systems (e.g., 3.3 V MCU driving 5 V peripherals) due to higher noise margin | Select when interfacing with 3.3 V logic or requiring extended supply flexibility beyond 5 V |
| SN74LV164APWR | Lower VCC range (2.0–5.5 V); LV family - optimized for 3.3 V operation with 1.7 V VIH threshold | Higher speed at 3.3 V (tpd = 9.5 ns typ), but not AEC-Q100 qualified | Choose for non-automotive industrial designs needing faster 3.3 V performance without automotive qualification overhead |
Compared with 74HC164BQ-Q100 and SN74LV164APWR, the 74HCT164BQ-Q100 uniquely balances TTL input compatibility, AEC-Q100 Grade 1 qualification, and 5 V system integration - making it the only option qualified for direct replacement in production automotive ECUs.
Availability
74HCT164BQ-Q100 is available at Aetrix Electronics and suitable for engine control units, body control modules, and automotive lighting systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HCT164BQ-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-volume, high-reliability logic, analog, and MOSFET solutions - with leadership in automotive-qualified components and advanced packaging.
This device belongs to Nexperia's automotive logic portfolio, designed specifically for serial interface expansion in harsh-environment vehicle subsystems where AEC-Q100 compliance, thermal robustness, and AOI-compatible packaging are mandatory.
FAQ
What is the maximum clock frequency supported by the 74HCT164BQ-Q100?
The device supports a maximum clock frequency of 27 MHz at VCC = 4.5 V and 22 MHz at VCC = 5.0 V under recommended operating conditions with CL = 15 pF. This is derived from the specified tpd (propagation delay) of 17 ns (typ) and tW (pulse width) of 18 ns (min), ensuring reliable setup/hold timing margins for automotive MCU interfaces.
Can DSA and DSB be used simultaneously for data input?
No - DSA and DSB operate as a gated pair: DSB is enabled only when DSA is HIGH, and DSA is enabled only when DSB is HIGH. The function table confirms that valid shifting occurs only when one input is HIGH and the other carries data (l or h). Simultaneous LOW or HIGH on both disables data entry.
Is the exposed thermal pad on the DHVQFN14 package electrically connected?
No - the exposed pad (terminal 1 index area) has no electrical connection to internal circuitry. Per Nexperia's datasheet, it may be left floating or connected to GND depending on thermal and EMI requirements, but must not be tied to any voltage other than GND if soldered.
How does the master reset (MR) interact with the clock (CP) input?
MR is fully asynchronous: asserting MR LOW immediately forces Q0–Q7 LOW regardless of CP state, clock edges, or data inputs. The recovery time (trec) from MR deassertion to first valid output is 16 ns (max) at VCC = 4.5 V, and CP must remain stable for at least tW (18 ns) after MR release before next shift cycle begins.
74HCT164BQ-Q100X Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- 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)
74HCT164BQ-Q100X FAQ
1.How can I place an order for 74HCT164BQ-Q100X through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT164BQ-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 74HCT164BQ-Q100X reliable?
The price and inventory of 74HCT164BQ-Q100X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT164BQ-Q100X is usually 5 days.
3.What payment methods are accepted for 74HCT164BQ-Q100X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT164BQ-Q100X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT164BQ-Q100X?
74HCT164BQ-Q100X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT164BQ-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 74HCT164BQ-Q100X?
For technical support, including 74HCT164BQ-Q100X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT164BQ-Q100X requirements.
6.How does Aetrix verify that 74HCT164BQ-Q100X is sourced from the original manufacturer or authorized distributors?
All 74HCT164BQ-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 74HCT164BQ-Q100X meets industry standards.
7.What is the process for return or replacement of 74HCT164BQ-Q100X?
All 74HCT164BQ-Q100X units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT164BQ-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 74HCT164BQ-Q100X part is unused and in its original packaging.
Return procedure for 74HCT164BQ-Q100X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HCT164BQ-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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