My Inquiry
My Account
NXP Semiconductors 74HC165DB,118
- Part No.:
- 74HC165DB,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Shift Registers
- Package:
- 16-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74HC165DB,118.pdf
- Description:
- PARALLEL IN SERIAL OUT, HC/UH SE
- Quantity:
- Payment:
- Shipping:
Inventory:6,884
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74HC165DB,118 from Nexperia is an 8-bit parallel-in/serial-out shift register with asynchronous parallel load (PL), synchronous serial shift capability, dual complementary outputs (Q7 and Q7), and CMOS-level input compatibility. It operates from 2.0 V to 6.0 V, supports -40 °C to +125 °C ambient range, and features overvoltage-tolerant inputs up to 15 V for high-to-low level shifting in microcontroller I/O expansion systems.
For engineers reviewing the 74HC165DB,118 datasheet, 74HC165DB,118 pinout, 74HC165DB,118 application, or 74HC165DB,118 equivalent, this device serves as a compact, low-power interface solution for GPIO-constrained embedded controllers requiring parallel data capture and serial stream conversion - especially where board space, supply flexibility, and noise immunity are critical.
Technical Context
The 74HC165DB,118 implements an 8-stage static shift register with edge-triggered clock (CP) and active-low clock enable (CE) that gates CP transitions. Its asynchronous PL input loads D0–D7 directly into the register regardless of clock state, enabling immediate parallel capture independent of serial timing constraints.
It provides two synchronized serial outputs: true (Q7) and complement (Q7), supporting differential signaling or logic-level inversion without external inverters. Input thresholds follow standard CMOS levels (VIH ≥ 70% VCC, VIL ≤ 30% VCC), ensuring robust noise margins across its full 2.0–6.0 V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 8-bit parallel-in/serial-out shift register with asynchronous load and dual complementary outputs |
| Supply Voltage Range | 2.0 V to 6.0 V - enables direct interfacing with 3.3 V and 5 V logic domains without level translators |
| Operating Temperature | -40 °C to +125 °C - qualified for automotive under-hood and industrial control environments |
| Propagation Delay (VCC = 4.5 V) | 19 ns (PL→Q7), 33 ns (CP→Q7) - supports >20 MHz serial throughput in typical PCB layouts |
| Input Overvoltage Tolerance | Up to 15 V on all inputs - allows safe use in mixed-voltage systems where higher-voltage signals drive CMOS inputs |
| Static Power Dissipation | ≤ 8 μA ICC at VCC = 6.0 V (25 °C) - suitable for battery-backed or ultra-low-power monitoring nodes |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - meets industrial handling requirements without additional protection circuitry |
Pinout & Package
74HC165DB,118 is supplied in the SOT338-1 (SSOP16) package: plastic shrink small outline package, 16 leads, body width 5.3 mm, pitch 0.65 mm. This package offers improved thermal performance and board density over SO16 while maintaining compatibility with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (PL) | Asynchronous parallel load input | Active LOW - forces immediate latching of D0–D7 into register, overriding serial shift behavior |
| 2 (CP) | Clock input | LOW-to-HIGH edge-triggered - advances shift register only when CE = LOW |
| 7 (Q7) | True serial output | MSB of shifted-out data stream - used for daisy-chaining or single-ended readout |
| 8 (GND) | Ground reference | 0 V return path for all internal logic and output drivers - must be low-impedance for signal integrity |
| 9 (Q7) | Complementary serial output | Inverted version of Q7 - enables differential sensing or eliminates need for external inverter |
| 10 (DS) | Serial data input | Feeds new bit into LSB position during shift cycles - used for cascading or feedback configurations |
| 11–14, 3–6 (D0–D7) | Parallel data inputs | Eight independent inputs accepting parallel byte - mapped directly to register stages D0 (LSB) to D7 (MSB) |
| 15 (CE) | Clock enable input | Active LOW - disables CP edge sensitivity, freezing register contents during serial operation |
| 16 (VCC) | Positive supply voltage | Primary power rail - decoupling capacitor (100 nF) required within 5 mm of pin for stable switching |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous parallel load | Enables immediate capture of 8-bit sensor or switch states without waiting for clock edges or clearing prior data |
| CMOS-level input compatibility | Supports direct connection to 3.3 V or 5 V MCU GPIOs without level-shifting components |
| Dual complementary outputs (Q7/Q7) | Reduces BOM count by eliminating external inverters in differential bus or fail-safe monitoring applications |
| Overvoltage-tolerant inputs (up to 15 V) | Permits direct interfacing with 12 V industrial sensors or legacy TTL outputs without clamping diodes |
| Wide temperature qualification (-40 °C to +125 °C) | Validated for use in engine control units, motor drives, and outdoor IoT gateways without derating |
Applications
| Industrial PLC Input Expansion | Microcontroller GPIO Multiplexing |
|---|---|
|
Use Scenario: Reading 8-channel mechanical limit switches in a factory automation cabinet with limited MCU I/O pins. IC Role / Device Role / Timing Role: Parallel capture of switch states via PL, then serial streaming to MCU SPI interface using CP and DS. Use Value: Reduces required MCU pins from eight digital inputs to three (PL, CP, DS), simplifying routing and lowering PCB layer count. |
Use Scenario: Adding extra push-button or LED control lines to a resource-constrained ARM Cortex-M0+ design. IC Role / Device Role / Timing Role: Shift register acting as bidirectional I/O expander - parallel inputs for buttons, serial output to MCU, DS input for LED control. Use Value: Enables 8-bit I/O extension with no additional address decoding logic or dedicated peripheral hardware. |
| Automotive Body Control Module | Legacy Equipment Interface Adapter |
|
Use Scenario: Monitoring door lock status, window position, and mirror switch positions in a vehicle BCM. IC Role / Device Role / Timing Role: Asynchronous PL captures all sensor states simultaneously upon wake-up; serial shift delivers consolidated status to main controller. Use Value: Ensures deterministic, glitch-free sampling of safety-critical signals without race conditions between individual pin reads. |
Use Scenario: Interfacing a 5 V parallel-output barcode scanner to a modern 3.3 V USB host controller via level translation. IC Role / Device Role / Timing Role: Parallel latch accepts scanner's 8-bit data word; serial output feeds UART or SPI bridge IC at compatible voltage. Use Value: Eliminates need for discrete level shifters per line - single IC handles full byte with built-in 15 V tolerant inputs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit parallel-in/serial-out shift register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC165D,118 | Same logic function and specs, but in SO16 (SOT109-1) package - 3.9 mm body width, 1.27 mm pitch | Less dense footprint; better suited for through-hole prototyping or legacy PCB designs with SO spacing | Select if board layout uses SO16 footprints or requires easier hand-soldering and visual inspection |
| SN74LV165AIPWR | Texas Instruments part with LV logic family: 2.0–5.5 V supply, lower propagation delay (13 ns @ 3.3 V), but no overvoltage tolerance | Lacks 15 V input tolerance - requires external clamping for mixed-voltage interfaces | Choose when maximum speed at 3.3 V is prioritized and all driving sources stay within 0–3.3 V range |
Compared with 74HC165D,118, the 74HC165DB,118 offers superior board density and thermal performance in SSOP16; versus SN74LV165AIPWR, it trades minor speed reduction for robust 15 V input tolerance essential in industrial fieldbus adapters.
Availability
74HC165DB,118 is available at Aetrix Electronics and suitable for industrial PLC input expansion, automotive body control modules, microcontroller GPIO multiplexing, and legacy equipment interface adapters requiring stable component supply across extended temperature ranges.
Supply support for 74HC165DB,118 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, with manufacturing rooted in process excellence and automotive-grade quality systems.
The 74HC165DB,118 belongs to Nexperia's 74HC logic family - engineered for robustness in industrial and automotive applications where wide supply range, noise immunity, and extended temperature operation are mandatory.
FAQ
Can 74HC165DB,118 operate reliably at 2.0 V supply?
Yes. The device is fully specified down to 2.0 V: propagation delays remain within 165 ns (max), VIH/VIL thresholds scale correctly, and ICC stays below 80 μA at -40 °C to +125 °C. This enables direct integration with low-voltage microcontrollers and energy-harvesting systems without voltage boosting.
What is the purpose of the Q7 and Q7 outputs?
Q7 delivers the true MSB of the shift register; Q7 provides its logical complement. This dual-output architecture supports differential bus termination, noise-canceling receiver designs, and eliminates external inverters in feedback loops or parity generation circuits - reducing component count and layout complexity.
How does the asynchronous PL input interact with ongoing serial shifts?
When PL is driven LOW, D0–D7 are loaded into the register immediately - overriding any current shift state. This action is independent of CP, CE, or DS timing. Once PL returns HIGH, subsequent CP edges resume serial shifting from the newly loaded value, ensuring deterministic state capture on demand.
Is the SSOP16 (SOT338-1) package RoHS-compliant and lead-free?
Yes. 74HC165DB,118 is manufactured in a lead-free, halogen-free, RoHS-compliant SSOP16 package per Nexperia's standard product policy. The SOT338-1 outline meets JEDEC MO-153 specifications and supports standard Pb-free reflow profiles with peak temperatures up to 260 °C.
74HC165DB,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74HC
- Package/Case:
- 16-SSOP (0.209", 5.30mm Width)
- Packaging:
- Bulk
- 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:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SSOP
74HC165DB,118 FAQ
1.How can I place an order for 74HC165DB,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC165DB,118 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 74HC165DB,118 reliable?
The price and inventory of 74HC165DB,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC165DB,118 is usually 5 days.
3.What payment methods are accepted for 74HC165DB,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC165DB,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC165DB,118?
74HC165DB,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC165DB,118 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 74HC165DB,118?
For technical support, including 74HC165DB,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC165DB,118 requirements.
6.How does Aetrix verify that 74HC165DB,118 is sourced from the original manufacturer or authorized distributors?
All 74HC165DB,118 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 74HC165DB,118 meets industry standards.
7.What is the process for return or replacement of 74HC165DB,118?
All 74HC165DB,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC165DB,118, 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 74HC165DB,118 part is unused and in its original packaging.
Return procedure for 74HC165DB,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HC165DB,118 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…
