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Nexperia USA Inc. 74HCT165D,652
- Part No.:
- 74HCT165D,652
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Shift Registers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HCT165D,652.pdf
- Description:
- IC SHIFT REG 8BIT PI-SO 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,671
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Product details
Overview
74HCT165D,652 from Nexperia is an 8-bit parallel-in/serial-out shift register with TTL-compatible inputs, asynchronous parallel load (PL), synchronous serial shift (CP/CE), dual complementary outputs (Q7 and Q7), and operation across -40 °C to +125 °C. It supports level shifting via 15 V overvoltage-tolerant inputs and delivers 26 MHz max clock frequency at VCC = 4.5 V - used in microcontroller GPIO expansion for industrial I/O modules.
For engineers reviewing the 74HCT165D,652 datasheet, 74HCT165D,652 pinout, 74HCT165D,652 application, or 74HCT165D,652 equivalent, key selection criteria include its TTL-level input compatibility, SO16 package thermal performance, asynchronous load timing (14 ns min PL-to-Q7 delay at 4.5 V), and dual-output capability for differential signal routing in noise-sensitive control interfaces.
Technical Context
This device implements a synchronous serial shift register with asynchronous parallel load functionality. Its architecture accepts eight parallel data bits (D0–D7) on PL low, then shifts them out serially via DS input and CP edge-triggering under CE control - enabling bidirectional data serialization without CPU intervention.
The logic supports both single-ended (Q7) and complementary (Q7) output paths, with propagation delays tightly specified across temperature and voltage (e.g., 17–51 ns CP-to-Q7 at 4.5 V). Input overvoltage tolerance up to 15 V allows direct interfacing with higher-voltage logic domains while maintaining CMOS power efficiency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 8-bit parallel-in/serial-out shift register with complementary outputs |
| Supply Voltage | 4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL systems |
| Input Logic Level | TTL-compatible - VIH = 2.0 V min, VIL = 0.8 V max at VCC = 5 V |
| Max Clock Frequency | 26 MHz at VCC = 4.5 V - enables high-speed data capture in real-time control loops |
| Propagation Delay (CP→Q7) | 17–51 ns - guarantees deterministic timing for synchronized sampling in PLC backplanes |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive and industrial motor drive environments |
| Package | SO16 (SOT109-1), 3.9 mm body width - industry-standard footprint with proven thermal derating (12.4 mW/K above 110 °C) |
Pinout & Package
74HCT165D,652 uses the SO16 plastic small outline package (SOT109-1), 16-pin, 3.9 mm body width, with gull-wing leads and standard JEDEC MS-012 dimensions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (PL) | Asynchronous parallel load input | Active LOW - loads D0–D7 into register immediately, independent of clock |
| 2 (CP) | Clock input | LOW-to-HIGH edge-triggered - advances shift register only when CE = LOW |
| 7 (Q7) | Complementary serial output | Inverted version of Q7 - enables noise-immune differential signaling or logic inversion |
| 8 (GND) | Ground reference | 0 V return path for all internal logic and output drivers |
| 9 (Q7) | Serial output | MSB-shifted output - provides bit-serial data stream after parallel load or serial shift |
| 10 (DS) | Serial data input | Accepts new bit during serial shift mode when PL = HIGH and CE = LOW |
| 11–14, 3–6 (D0–D7) | Parallel data inputs | Eight-bit wide parallel bus interface - mapped to physical pins in non-sequential order per SO16 layout |
| 15 (CE) | Clock enable input | Active LOW - gates CP transitions; HIGH disables shifting entirely |
| 16 (VCC) | Positive supply | 4.5–5.5 V power rail - powers all logic and output stages with CMOS-level quiescent current |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous parallel load | Enables immediate capture of 8-bit status registers (e.g., sensor arrays) without waiting for clock edges |
| TTL-compatible inputs | Eliminates need for level-shifting buffers when interfacing with legacy 5 V microcontrollers or FPGAs |
| Overvoltage-tolerant inputs | Withstands up to 15 V on any input - permits safe connection to 12 V control buses in industrial HMIs |
| Dual complementary outputs | Provides both true and inverted serial streams - simplifies differential receiver design or XOR-based CRC generation |
| Wide temperature range | Rated from -40 °C to +125 °C - supports deployment in engine control units and outdoor telecom equipment |
Applications
| Industrial I/O Expansion | Automotive Body Control |
|---|---|
|
Use Scenario: Adding 8-bit digital input capability to a resource-constrained MCU in a programmable logic controller. IC Role / Device Role / Timing Role: Parallel-in/serial-out shift register capturing pushbutton or limit switch states and streaming them over a single GPIO line. Use Value: Reduces required MCU pins by 7× while maintaining deterministic 14–50 ns load-to-output latency for real-time fault detection. |
Use Scenario: Monitoring door lock status, window position, and mirror controls in a vehicle body control module. IC Role / Device Role / Timing Role: Serializing distributed switch inputs into a daisy-chained bus for centralized ECU polling. Use Value: Enables robust 12 V-tolerant sensing via overvoltage inputs and operates reliably at 125 °C under dashboards. |
| Embedded Sensor Interface | Legacy System Modernization |
|
Use Scenario: Reading 8-channel analog sensor outputs digitized by external ADCs in a medical diagnostic device. IC Role / Device Role / Timing Role: Aggregating parallel ADC result lines and shifting them serially to conserve SPI bus resources. Use Value: Delivers 26 MHz max clock rate to sustain >200 kSPS aggregate throughput with sub-50 ns timing margins. |
Use Scenario: Replacing obsolete 74LS165 in retrofitted industrial panel meters using modern 5 V supply rails. IC Role / Device Role / Timing Role: Pin- and function-compatible drop-in replacement with lower power and wider voltage margin. Use Value: Maintains identical SO16 footprint and logic behavior while reducing ICC from ~20 mA to <160 μA at standby. |
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,653 | CMOS-level inputs (VIH = 3.15 V min at 4.5 V), slightly higher propagation delay (19–41 ns) | Requires level-shifting when interfacing with TTL sources; better suited for mixed-voltage 3.3/5 V systems | Select when system uses CMOS logic families or needs lower static current (<8 μA typical ICC) |
| SN74LV165APWR | 3.3 V-only operation (1.65–3.6 V), LV logic family, 24 MHz max fCLK at 3.3 V | Not compatible with 5 V TTL inputs; requires external level translation for legacy 5 V interfaces | Choose for battery-powered IoT nodes where 3.3 V operation and 10 μA ICC are critical |
Compared with 74HC165D,653 and SN74LV165APWR, the 74HCT165D,652 uniquely balances TTL input compatibility, 5 V robustness, and industrial temperature support - making it optimal for upgrading legacy 5 V control systems without redesigning interface circuitry.
Availability
74HCT165D,652 is available at Aetrix Electronics and suitable for industrial I/O expansion, automotive body control modules, embedded sensor interfaces, and legacy system modernization requiring stable component supply across extended temperature ranges.
Supply support for 74HCT165D,652 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 logic, discrete, and MOSFET solutions with focus on efficiency, reliability, and sustainability.
The 74HCT165 belongs to Nexperia's industry-standard 74-series logic portfolio, engineered for interoperability with legacy TTL systems while delivering CMOS power efficiency and extended temperature resilience.
FAQ
Can 74HCT165D,652 operate at 3.3 V?
No - the 74HCT165D,652 is specified only for 4.5 V to 5.5 V operation. Its TTL-compatible inputs require minimum 2.0 V VIH, which cannot be guaranteed below 4.5 V supply. For 3.3 V systems, use the 74LV165A or 74AHC165 variants instead.
What is the purpose of the Q7 and Q7 outputs?
Q7 provides the true serial output (MSB first), while Q7 delivers its logical complement. This dual-output structure supports differential signaling for noise immunity, enables XOR-based parity generation, or simplifies interfacing with logic that requires inverted data without external gates.
How does the clock enable (CE) pin affect timing behavior?
When CE is HIGH, the CP input is disabled - no shifting occurs regardless of clock edges. When CE is LOW, CP edges trigger serial shifting. This allows precise control over data movement without gating the clock source, preserving signal integrity in synchronous systems.
Is the SO16 package RoHS compliant and lead-free?
Yes - the 74HCT165D,652 in SOT109-1 (SO16) packaging meets RoHS Directive 2011/65/EU and is manufactured with lead-free terminations and halogen-free molding compound, verified per Nexperia's material declarations.
74HCT165D,652 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
74HCT165D,652 FAQ
1.How can I place an order for 74HCT165D,652 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT165D,652 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 74HCT165D,652 reliable?
The price and inventory of 74HCT165D,652 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT165D,652 is usually 5 days.
3.What payment methods are accepted for 74HCT165D,652?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT165D,652 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT165D,652?
74HCT165D,652 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT165D,652 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 74HCT165D,652?
For technical support, including 74HCT165D,652 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT165D,652 requirements.
6.How does Aetrix verify that 74HCT165D,652 is sourced from the original manufacturer or authorized distributors?
All 74HCT165D,652 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 74HCT165D,652 meets industry standards.
7.What is the process for return or replacement of 74HCT165D,652?
All 74HCT165D,652 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT165D,652, 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 74HCT165D,652 part is unused and in its original packaging.
Return procedure for 74HCT165D,652:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HCT165D,652 Tags
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74HC165D,653
Nexperia USA Inc.
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SN74LV165APWR
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