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Nexperia USA Inc. HEF4014BT,652
- Part No.:
- HEF4014BT,652
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Shift Registers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
HEF4014BT,652.pdf
- Description:
- IC REGISTER STATIC 8BIT 16-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,340
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Product details
Overview
HEF4014BT,652 from Nexperia is an 8-bit CMOS static shift register with synchronous parallel enable, designed for parallel-to-serial data conversion in industrial control and legacy digital systems. It operates across 3.0 V to 15.0 V supply, supports -40 °C to +85 °C ambient range, features edge-triggered clock (LOW-to-HIGH), and includes input clamp diodes enabling interface with voltages exceeding VDD via current-limiting resistors.
For engineers reviewing the HEF4014BT,652 datasheet, HEF4014BT,652 pinout, HEF4014BT,652 application, or HEF4014BT,652 equivalent, key selection criteria include its wide VDD range, static operation without minimum clock frequency requirement, symmetrical output drive at 5/10/15 V, and SO16 package compatibility with legacy 4000-series logic layouts.
Technical Context
The HEF4014BT,652 implements a fully static 8-bit shift register with dual-mode operation: serial-in/parallel-out (via DS and CP) and parallel-load (via D0–D7 and PE). Its clock input (CP) is edge-triggered on LOW-to-HIGH transitions, and parallel enable (PE) must be HIGH to load all eight bits simultaneously.
Input clamp diodes allow safe interfacing with signals up to VDD + 0.5 V or down to -0.5 V, enabling robust level-shifting without external protection. Output characteristics are standardized per JEDEC JESD13-B, with VOH ≥ VDD − 0.05 V and VOL ≤ 0.05 V at |IO| < 1 μA across full temperature and voltage range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 8-bit synchronous static shift register with parallel enable |
| Supply Voltage Range | 3.0 V to 15.0 V - enables direct use in mixed-voltage legacy systems (e.g., 5 V TTL, 12 V industrial) |
| Operating Temperature | -40 °C to +85 °C - qualified for extended industrial environments without derating |
| Propagation Delay (tPHL/tPLH) | 40 ns @ VDD = 15 V, CL = 50 pF - ensures reliable timing in high-speed serial chains |
| Maximum Clock Frequency | 40 MHz @ VDD = 15 V - supports fast data throughput in real-time buffering applications |
| Input Clamp Diodes | Integrated - permits safe interface with overvoltage signals using simple series resistors |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - meets industrial handling requirements without additional protection circuitry |
Pinout & Package
HEF4014BT,652 is housed in a plastic small outline package (SO16), SOT109-1, with 16 leads and 3.9 mm body width. Pin 1 is marked by a notch or dot; pin numbering follows standard SO16 convention (counterclockwise from index mark).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | D7 | MSB parallel data input - loaded into Q7 when PE = HIGH and CP rising edge occurs |
| 2 | Q5 | Serial output stage 5 - provides delayed serial output aligned with internal shift register position |
| 3 | Q7 | MSB serial output - final stage of 8-bit shift chain; used for daisy-chained cascading |
| 4 | D4 | Parallel data input bit 4 - part of 8-bit parallel bus (D0–D7) loaded synchronously on PE assertion |
| 5 | D3 | Parallel data input bit 3 - contributes to full parallel load capability during system initialization |
| 6 | D2 | Parallel data input bit 2 - enables rapid state capture from microcontroller GPIO ports |
| 7 | D0 | LSB parallel data input - loaded into Q0; critical for alignment-sensitive data acquisition |
| 8 | VSS | Ground reference - common return path for all inputs, outputs, and internal logic |
| 9 | PE | Parallel enable control - HIGH activates parallel load mode; LOW enables serial shift mode |
| 10 | CP | Clock input - LOW-to-HIGH edge triggers both serial shift and parallel load operations |
| 11 | DS | Serial data input - feeds LSB (D0) during serial shift; used for cascaded multi-register configurations |
| 12 | Q6 | Serial output stage 6 - intermediate tap point for partial readout or diagnostic monitoring |
| 13 | D5 | Parallel data input bit 5 - supports full 8-bit parallel capture from status registers or ADC outputs |
| 14 | D6 | Parallel data input bit 6 - enables simultaneous sampling of multi-bit sensor interfaces |
| 15 | D7 | Parallel data input bit 7 - completes 8-bit parallel bus for maximum data bandwidth per cycle |
| 16 | VDD | Positive supply rail - powers internal CMOS logic; supports wide-range operation without regulator |
Key Features
| Feature | Design Value |
|---|---|
| Wide VDD range (3.0–15.0 V) | Eliminates need for level translators in mixed-supply systems such as PLC I/O modules and motor drives |
| Fully static operation | Permits indefinite clock suspension without data loss - essential for low-power sleep modes and watchdog-controlled systems |
| Synchronous parallel enable (PE) | Enables deterministic state capture from external buses on precise clock edges - critical for synchronized data acquisition |
| Input clamp diodes | Allows direct connection to 24 V field signals using only series resistors - reduces BOM count in industrial IO designs |
| JEDEC JESD13-B compliance | Ensures interoperability with legacy 4000-series logic families and predictable timing behavior across vendors |
Applications
| Industrial PLC Input Expansion | Legacy Microcontroller Data Buffering |
|---|---|
|
Use Scenario: Expanding discrete input capacity of programmable logic controllers using 24 V field sensors. IC Role / Device Role / Timing Role: Parallel-to-serial converter capturing 8-channel status signals and shifting them to MCU via single SPI-like line. Use Value: Reduces GPIO usage by 8× while maintaining deterministic sampling via synchronized PE pulse and CP edge. |
Use Scenario: Offloading parallel port reads from 8-bit microcontrollers with limited I/O pins. IC Role / Device Role / Timing Role: General-purpose register holding sensor data until CPU initiates serial readout. Use Value: Enables zero-wait-state data capture at full system clock speed, decoupling sensor sampling from CPU latency. |
| LED Matrix Row Driver Interface | Test Equipment Digital Pattern Generator |
|
Use Scenario: Driving multiplexed LED displays requiring precise row activation sequencing. IC Role / Device Role / Timing Role: Serial data queueing element feeding row-select bits to high-side drivers. Use Value: Provides glitch-free row addressing with tW ≥ 12 ns minimum CP pulse width - prevents display flicker. |
Use Scenario: Generating repeatable digital test vectors for board-level functional verification. IC Role / Device Role / Timing Role: Static shift register storing and serially outputting preloaded stimulus patterns. Use Value: Delivers stable, jitter-free output waveforms up to 40 MHz - meets timing margins for high-speed digital testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit static shift register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4014BE | Same function but TI-manufactured; wider temp range (-55 °C to +125 °C); no integrated clamp diodes | Requires external clamping for overvoltage inputs; preferred in aerospace/military where extended temp is mandatory | Select CD4014BE only if operating beyond -40 °C/+85 °C or if TI qualification is required; otherwise HEF4014BT,652 offers superior input protection |
| MC14014BDR2G | Onsemi version; identical pinout and function; lower max fCLK (30 MHz @ 15 V); higher IDD leakage at 15 V | Suitable for cost-sensitive industrial designs where 30 MHz suffices; less suitable for high-throughput serial links | Choose MC14014BDR2G for price-driven volume production where 10 MHz margin is acceptable; HEF4014BT,652 preferred for timing-critical paths |
Compared with CD4014BE and MC14014BDR2G, the HEF4014BT,652 uniquely combines integrated input clamp diodes, 40 MHz operation at 15 V, and JEDEC-compliant output drive - making it optimal for ruggedized industrial interfaces where signal integrity and voltage tolerance are prioritized over extreme temperature range or lowest unit cost.
Availability
HEF4014BT,652 is available at Aetrix Electronics and suitable for industrial PLC expansion, legacy microcontroller data buffering, LED matrix row driving, and test equipment digital pattern generation requiring stable component supply across long product lifecycles.
Supply support for HEF4014BT,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 specializing in high-performance, energy-efficient logic, analog, and discrete components for automotive, industrial, and consumer markets.
The HEF4014BT,652 belongs to Nexperia's legacy-compatible 4000-series logic family, engineered to provide drop-in replacement capability, enhanced reliability, and extended voltage/temperature operation for industrial control and retrofit applications.
FAQ
What is the minimum clock pulse width (tW) required for reliable operation at 15 V?
The minimum CP pulse width is 12 ns at VDD = 15 V, as specified in Table 7. This ensures sufficient time for internal latch evaluation and avoids metastability. Operation below this value risks incomplete state transfer or skipped shifts, especially under worst-case process/voltage/temperature corners.
Can HEF4014BT,652 interface directly with 24 V sensors without external protection?
No - while integrated clamp diodes allow safe operation with inputs up to VDD + 0.5 V, 24 V exceeds the absolute maximum VI rating of VDD + 0.5 V. A current-limiting resistor (e.g., 10 kΩ) must be used to restrict IIK to ±10 mA, as defined in Table 4, to prevent damage.
How does parallel enable (PE) interact with clock (CP) during simultaneous load and shift operations?
When PE = HIGH, the next CP rising edge loads D0–D7 into Q0–Q7 regardless of DS state. When PE = LOW, the same CP edge shifts data from DS into Q0 and propagates existing bits rightward. PE and CP are fully synchronous - no race conditions occur if setup/hold times (tsu = 15 ns, th = 7 ns @ 15 V) are met.
Is HEF4014BT,652 suitable for automotive applications?
No - the HEF4014BT,652 is not automotive-qualified. It is rated for -40 °C to +85 °C industrial operation only and lacks AEC-Q100 qualification, automotive-grade screening, or guaranteed PPAP documentation. For automotive use, consult Nexperia's automotive-qualified alternatives such as the 74HC165 or 74LVC164 variants.
HEF4014BT,652 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 4000B
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- Shift Register
- Output Type:
- Push-Pull
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Function:
- Parallel or Serial to Serial
- Voltage - Supply:
- 3V ~ 15V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
HEF4014BT,652 FAQ
1.How can I place an order for HEF4014BT,652 through Aetrix?
Please submit a Request for Quotation (RFQ) for HEF4014BT,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 HEF4014BT,652 reliable?
The price and inventory of HEF4014BT,652 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HEF4014BT,652 is usually 5 days.
3.What payment methods are accepted for HEF4014BT,652?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HEF4014BT,652 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HEF4014BT,652?
HEF4014BT,652 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HEF4014BT,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 HEF4014BT,652?
For technical support, including HEF4014BT,652 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HEF4014BT,652 requirements.
6.How does Aetrix verify that HEF4014BT,652 is sourced from the original manufacturer or authorized distributors?
All HEF4014BT,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 HEF4014BT,652 meets industry standards.
7.What is the process for return or replacement of HEF4014BT,652?
All HEF4014BT,652 units undergo pre-shipment inspection (PSI). If there is an issue with HEF4014BT,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 HEF4014BT,652 part is unused and in its original packaging.
Return procedure for HEF4014BT,652:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HEF4014BT,652 Tags
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SN74HC164DR
Texas Instruments
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SN74HC595DR
Texas Instruments
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74HC595PW,118
Nexperia USA Inc.
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SN74HC165PWR
Texas Instruments
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HEF4094BT,653
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74HC595D,118
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SN74HC595PWR
Texas Instruments
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74HC165D,653
Nexperia USA Inc.
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SN74LV165APWR
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74HC595BQ,115
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74HC165BQ,115
Nexperia USA Inc.
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CD4094BPWR
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