My Inquiry
My Account
Nexperia USA Inc. 74HCT165BQ-Q100,11
- Part No.:
- 74HCT165BQ-Q100,11
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Shift Registers
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
74HCT165BQ-Q100,11.pdf
- Description:
- IC SHIFT REGISTER 8BIT 16DHVQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,069
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74HCT165BQ-Q100 from Nexperia is an automotive-grade 8-bit parallel-in/serial-out shift register with TTL-compatible inputs, asynchronous parallel load (PL), synchronous serial shift (CP/CE), complementary Q7/Q7 outputs, and overvoltage-tolerant inputs up to 15 V-used in automotive body control modules for GPIO expansion via SPI-like interfaces.
For engineers reviewing the 74HCT165BQ-Q100 datasheet, 74HCT165BQ-Q100 pinout, 74HCT165BQ-Q100 application, or 74HCT165BQ-Q100 equivalent, key selection criteria include AEC-Q100 Grade 1 qualification (-40 °C to +125 °C), DHVQFN16 package with side-wettable flanks for AOI, propagation delay ≤51 ns at 4.5 V, and input level compatibility with legacy 5 V TTL logic.
Technical Context
This device implements a synchronous 8-stage shift register with dual-path data entry: asynchronous parallel load (PL active LOW) captures D0–D7 directly into the register, while serial mode (PL HIGH) shifts data in via DS on CP rising edges when CE is LOW. The architecture supports both parallel-to-serial conversion and serial daisy-chaining via Q7 output.
Input thresholds are TTL-compatible (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), and all inputs tolerate up to 15 V-enabling robust level-shifting between higher-voltage sensors and 5 V microcontrollers. Output drive strength is ±4.0 mA (VOH/VOL specified at IO = ±4.0 mA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74HCT: TTL-input compatible CMOS output; ensures interoperability with legacy 5 V microcontrollers and FPGAs. |
| Operating Temperature | -40 °C to +125 °C: Qualified per AEC-Q100 Grade 1 for under-hood automotive use. |
| Propagation Delay | ≤51 ns (CP/CE to Q7 at VCC = 4.5 V): Enables reliable operation up to 17 MHz system clock rates. |
| Supply Voltage | 4.5 V to 5.5 V: Matches standard 5 V automotive power rails; excludes 3.3 V operation. |
| Input Overvoltage Tolerance | Up to 15 V on all inputs: Allows direct interface with 12 V sensor signals without external level-shifters. |
| Package | DHVQFN16 (SOT763-1): 2.5 × 3.5 × 0.85 mm, side-wettable flanks for automated optical inspection of solder joints. |
| ESD Protection | HBM >2000 V, MM >200 V: Robust handling during PCB assembly and in-field service. |
Pinout & Package
DHVQFN16 (SOT763-1) package: 2.5 × 3.5 × 0.85 mm body, no leads, 16 copper terminals with side-wettable flanks for AOI-compliant reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (PL) | Asynchronous parallel load enable | Active LOW: Loads D0–D7 into register immediately-bypasses clock timing constraints for fast state capture. |
| 2 (CP) | Shift clock input | LOW-to-HIGH edge-triggered: Controls serial shifting only when CE = LOW; tolerant of slow-rising edges. |
| 7 (Q7) | Serial output (MSB) | True output: Delivers shifted-out bit after 8 clocks; drives next stage's DS or MCU MISO line. |
| 9 (Q7) | Complementary serial output | Inverted Q7: Enables differential signaling or wired-OR logic without external inverters. |
| 10 (DS) | Serial data input | Feeds new bit during serial shift mode; sampled on CP rising edge when CE = LOW and PL = HIGH. |
| 11–14, 3–6 (D0–D7) | Parallel data inputs | Eight independent inputs accepting switch/SPI peripheral states; loaded simultaneously on PL assertion. |
| 15 (CE) | Clock enable | Active LOW: Gates CP-HIGH disables shifting entirely, holding register contents stable. |
| 16 (VCC) | Positive supply | 4.5–5.5 V only: Not 3.3 V compatible; decoupling capacitor required within 5 mm of pin. |
| 8 (GND) | Ground reference | 0 V return path for all I/O and supply currents; must be low-impedance plane beneath package. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive use across -40 °C to +125 °C ambient, including thermal cycling and humidity testing. |
| Asynchronous parallel load | Enables immediate capture of 8-bit sensor or switch states without waiting for clock edges-critical for fault detection latency. |
| TTL-compatible input thresholds | VIH ≥ 2.0 V and VIL ≤ 0.8 V at 5 V supply ensure reliable interfacing with legacy 5 V MCUs and discrete logic. |
| 15 V input overvoltage tolerance | Eliminates need for external clamping diodes when connecting to 12 V automotive buses or analog sensor outputs. |
| DHVQFN16 with side-wettable flanks | Supports automated optical inspection of solder joint quality-reducing field failure risk in high-reliability production. |
Applications
| Automotive Body Control Unit (BCU) | Industrial PLC Input Expansion |
|---|---|
Use Scenario: Reading status of 8 door switches, seatbelt latches, and trunk sensors in a vehicle BCU. IC Role / Device Role / Timing Role: Parallel-in/serial-out shift register capturing mechanical switch states and streaming them via single MCU GPIO pin. Use Value: Reduces MCU GPIO count by 8 pins per device; AEC-Q100 qualification ensures reliability in harsh under-dash environments. | Use Scenario: Adding digital input capability to a compact industrial PLC using existing 5 V backplane voltage. IC Role / Device Role / Timing Role: Interface IC converting 8 isolated dry-contact inputs into serial data for microcontroller polling. Use Value: TTL-level compatibility ensures plug-and-play integration with legacy 5 V control logic; 15 V input tolerance accommodates contact bounce suppression circuits. |
| Automotive Lighting Control Module | Automotive HVAC Panel Interface |
Use Scenario: Monitoring status of headlight, fog light, and turn signal relays in a lighting control ECU. IC Role / Device Role / Timing Role: Parallel capture of relay feedback signals followed by serial upload to main controller for diagnostics. Use Value: Asynchronous PL allows instantaneous snapshot of all relay states during fault events-enabling precise root-cause logging. | Use Scenario: Scanning pushbutton and rotary encoder inputs on an HVAC control panel with limited MCU I/O. IC Role / Device Role / Timing Role: Serial shift register aggregating 8 panel inputs into one data stream for periodic polling. Use Value: DHVQFN16 footprint minimizes PCB area; side-wettable flanks ensure solder joint integrity in vibration-prone dashboard assemblies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar parallel-in/serial-out shift register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC165BQ-Q100 | CMOS-input variant: VIH = 3.15 V min at VCC = 4.5 V; not TTL-compatible. | Suitable only with CMOS-output sources (e.g., modern 5 V MCUs); incompatible with legacy TTL drivers. | Select when interfacing exclusively with CMOS logic and lower input current is critical. |
| SN74LV165AQPWRQ1 | TI automotive LV family: 3.3 V–5.5 V supply range; VIH = 2.0 V min at VCC = 3.3 V; no 15 V overvoltage tolerance. | Supports mixed-voltage systems but requires external clamping for 12 V sensor interfaces. | Choose for 3.3 V–5 V flexible supply designs where overvoltage protection is handled externally. |
Compared with 74HC165BQ-Q100 and SN74LV165AQPWRQ1, the 74HCT165BQ-Q100 uniquely combines TTL-level input compatibility, 15 V overvoltage tolerance, and AEC-Q100 Grade 1 qualification-making it the only option for direct 12 V sensor interfacing in automotive body electronics without additional components.
Availability
74HCT165BQ-Q100 is available at Aetrix Electronics and suitable for automotive body control units, industrial PLC input expansion, automotive lighting control modules, and HVAC panel interfaces requiring stable component supply across extended temperature ranges.
Supply support for 74HCT165BQ-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 focused on high-volume, high-reliability logic, analog, and MOSFET solutions for automotive, industrial, and consumer markets.
The 74HCT165BQ-Q100 belongs to Nexperia's automotive-qualified logic portfolio, designed specifically for robust GPIO expansion in space-constrained, thermally demanding automotive ECUs.
FAQ
Can the 74HCT165BQ-Q100 operate at 3.3 V supply?
No. The 74HCT165BQ-Q100 is specified only for 4.5 V to 5.5 V operation per its recommended conditions. At 3.3 V, input thresholds (VIH ≥ 2.0 V) may not be reliably met, and output drive strength degrades significantly. Use 74LV165AQPWRQ1 for true 3.3 V–5.5 V operation.
What is the function of the exposed thermal pad (pin 1 index area) in the DHVQFN16 package?
The exposed pad (terminal 1 index area) has no electrical function and must remain electrically floating or be connected to GND. It serves only as a mechanical anchor and thermal path; soldering it to GND improves thermal dissipation but is not required for functionality.
How does the CE (clock enable) pin interact with PL (parallel load) during operation?
CE and PL are independent controls: CE gates the clock (CP) only in serial mode (PL = HIGH), while PL forces immediate parallel load regardless of CE or CP state. When PL is asserted LOW, CE has no effect-the register loads D0–D7 asynchronously and holds until next PL or CP event.
Is the Q7 output truly the MSB of the shift register?
Yes. Q7 is the output of the eighth (final) flip-flop stage. After eight CP rising edges in serial mode, the bit present at DS during the first clock appears at Q7. In parallel load mode, the value at D7 is immediately available at Q7-confirming its role as the most significant bit output.
74HCT165BQ-Q100,11 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 16-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Shift Register
- Output Type:
- Complementary
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Function:
- Parallel or Serial to 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-DHVQFN (2.5x3.5)
74HCT165BQ-Q100,11 FAQ
1.How can I place an order for 74HCT165BQ-Q100,11 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT165BQ-Q100,11 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 74HCT165BQ-Q100,11 reliable?
The price and inventory of 74HCT165BQ-Q100,11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT165BQ-Q100,11 is usually 5 days.
3.What payment methods are accepted for 74HCT165BQ-Q100,11?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT165BQ-Q100,11 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT165BQ-Q100,11?
74HCT165BQ-Q100,11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT165BQ-Q100,11 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 74HCT165BQ-Q100,11?
For technical support, including 74HCT165BQ-Q100,11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT165BQ-Q100,11 requirements.
6.How does Aetrix verify that 74HCT165BQ-Q100,11 is sourced from the original manufacturer or authorized distributors?
All 74HCT165BQ-Q100,11 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 74HCT165BQ-Q100,11 meets industry standards.
7.What is the process for return or replacement of 74HCT165BQ-Q100,11?
All 74HCT165BQ-Q100,11 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT165BQ-Q100,11, 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 74HCT165BQ-Q100,11 part is unused and in its original packaging.
Return procedure for 74HCT165BQ-Q100,11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HCT165BQ-Q100,11 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
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
