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Nexperia USA Inc. HEF4094BTTJ
- Part No.:
- HEF4094BTTJ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Shift Registers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
HEF4094BTTJ.pdf
- Description:
- IC SHIFT/STORE REGISTER
- Quantity:
- Payment:
- Shipping:
Inventory:674
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Product details
Overview
HEF4094BTTJ from Nexperia is an 8-bit serial-in/parallel-or-serial-out shift-and-store register with independent shift and storage clocks, 3-state outputs, and dual serial outputs (QS1, QS2) for daisy-chaining. It operates from 3.0 V to 15.0 V, supports -40 °C to +125 °C ambient range, and features CMOS low power dissipation. It is used in serial-to-parallel data conversion and remote control holding registers.
For engineers reviewing the HEF4094BTTJ datasheet, HEF4094BTTJ pinout, HEF4094BTTJ application, or HEF4094BTTJ equivalent, key selection criteria include supply voltage flexibility (3–15 V), dual-edge-cascadable serial outputs, strobe-controlled parallel latch timing, 3-state output enable behavior, and TSSOP16 package thermal performance at extended temperature.
Technical Context
The HEF4094BTTJ implements a two-stage pipeline: an 8-bit shift register clocked on CP's LOW-to-HIGH transition, feeding into an independent 8-bit storage register triggered by STR HIGH. Data appears at QS1 on the same CP rising edge and at QS2 on the subsequent CP falling edge-enabling robust cascading under both fast and slow clock edge conditions.
Its 3-state outputs are controlled solely by OE: HIGH enables QP0–QP7 outputs with symmetrical VOH/VOL, while LOW forces high-impedance regardless of register state. Input clamp diodes allow safe interfacing to voltages exceeding VDD when used with current-limiting resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3.0 V to 15.0 V - Enables direct interface with 5 V, 10 V, and 15 V logic systems without level-shifting. |
| Operating Temperature | -40 °C to +125 °C - Qualified for industrial and extended-temperature embedded control applications. |
| Propagation Delay (CP to QPn) | 47 ns to 110 ns at VDD = 15 V - Determines maximum achievable shift rate in cascaded configurations. |
| Output Drive Strength | IOL = 2.4 mA / IOH = -2.4 mA at VDD = 15 V - Sufficient to drive 15 pF loads directly or interface with standard CMOS inputs. |
| Input Clamping Current | ±10 mA - Allows use of external series resistors for overvoltage-tolerant input interfacing up to VDD + 0.5 V. |
| 3-State Enable Delay | tPZH/tPLZ ≤ 40 ns at VDD = 15 V - Ensures clean bus arbitration during output enable/disable transitions. |
| Maximum Clock Frequency | 28 MHz at VDD = 15 V - Sets upper bound for serial data throughput in high-speed shift operations. |
Pinout & Package
TSSOP16 plastic thin shrink small outline package (SOT403-1), 16-pin, 4.4 mm body width, 0.65 mm lead pitch, optimized for high-density PCB layouts and improved thermal dissipation vs SO16.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (STR) | Strobe input | Latches shift register contents into storage register on HIGH; asynchronous to CP and independent of OE state. |
| 2 (D) | Serial data input | Accepts new bit on each LOW-to-HIGH CP transition; synchronized to shift register clock domain. |
| 3 (CP) | Shift clock input | Drives 8-bit shift register on rising edge; QS1 mirrors Q6S on same edge, QS2 mirrors Q7S on next falling edge. |
| 4–7, 11–14 (QP0–QP7) | Parallel outputs | 8-bit buffered outputs from storage register; enabled only when OE = HIGH; otherwise high-impedance. |
| 8 (VSS) | Ground | Reference for all input thresholds and output logic levels; must be low-impedance return path. |
| 9 (QS1) | Serial output (fast edge) | Q6S appears on CP rising edge - used for tight-tolerance cascading with fast clock edges. |
| 10 (QS2) | Serial output (slow edge) | Q7S appears on CP falling edge - accommodates slower edge rates and reduces timing skew in long chains. |
| 15 (OE) | Output enable | Controls 3-state buffer on QP0–QP7; no effect on internal register states or QS1/QS2 outputs. |
| 16 (VDD) | Supply voltage | Power rail for CMOS logic; supports wide range (3–15 V); decoupling capacitor required near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Dual serial outputs with edge-optimized timing | QS1 delivers shifted data on CP rising edge; QS2 delivers it on next falling edge - eliminates setup/hold violations in multi-device chains. |
| Independent shift and store clocks | CP controls shifting; STR controls latching - enables asynchronous data capture and output update, critical for real-time display or LED driver buffering. |
| Wide 3.0–15.0 V supply range | Eliminates need for separate voltage regulators in mixed-voltage systems; compatible with legacy 5 V, modern 3.3 V, and industrial 10/15 V rails. |
| Input clamp diodes with ±10 mA rating | Permits direct connection to signals exceeding VDD (e.g., 24 V sensor lines) using simple series resistors - reduces BOM count and board space. |
| JEDEC JESD13-B compliance & ESD robustness | HBM >2000 V and CDM >1000 V - ensures reliability in manual handling and automated assembly environments without special ESD controls. |
Applications
| LED Matrix Driver Interface | Industrial I/O Expansion |
|---|---|
Use Scenario: Driving 8×8 LED matrices via microcontroller GPIO-constrained interfaces using serial shift-out. IC Role / Device Role / Timing Role: Serial-to-parallel converter that buffers column/row data; STR synchronizes display updates to avoid flicker. Use Value: Reduces MCU pin count by 8× while enabling precise frame-aligned output updates via strobe timing. | Use Scenario: Adding isolated digital outputs to PLC modules where space and voltage flexibility are critical. IC Role / Device Role / Timing Role: Output latch and level translator; accepts 3.3 V serial commands but drives 12 V solenoid loads via external drivers. Use Value: Wide VDD range allows direct 12 V rail operation, eliminating level shifters and reducing component count. |
| Remote Control Signal Holding | Test Equipment Pattern Generator |
Use Scenario: Capturing and holding IR remote command codes in consumer electronics before decoding. IC Role / Device Role / Timing Role: Shift register captures serial IR pulse train; STR freezes code in storage register until CPU reads it. Use Value: Prevents data loss during CPU interrupt latency; QS1/QS2 support chaining for multi-button code expansion. | Use Scenario: Generating programmable stimulus patterns for IC functional testing using FPGA-controlled serial streams. IC Role / Device Role / Timing Role: Parallel output staging element; STR aligns pattern edges across multiple HEF4094BTTJ devices in sync with test clock. Use Value: 3-state outputs allow dynamic bus sharing; tPZH/tPLZ <40 ns ensures sub-25 ns timing resolution in pattern switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit shift-and-store register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CD4094BE | Same logic function but older TI CMOS process; max fmax = 3 MHz at 5 V; no QS2 output; only QS1 available. | Lacks dual-edge cascading capability; unsuitable for high-speed or long-chain daisy-chaining. | Select when cost sensitivity outweighs speed and cascade robustness; verify timing margins at target VDD. |
| 74HC595PW | Single serial output (Q7S); no QS2; higher typical fmax (100 MHz at 5 V); different pinout; no input clamps. | Better speed but no slow-edge cascade option; requires external clamping for overvoltage inputs. | Prefer for high-throughput, single-chain designs where board layout permits rework; not drop-in compatible. |
Compared with CD4094BE and 74HC595PW, the HEF4094BTTJ uniquely balances wide voltage operation, dual serial outputs for timing-resilient cascading, and integrated input protection - making it optimal for industrial and mixed-rail systems requiring field-reliable serial expansion.
Availability
HEF4094BTTJ is available at Aetrix Electronics and suitable for LED matrix driver interfaces, industrial I/O expansion, remote control signal holding, and test equipment pattern generation requiring stable component supply across extended temperature and voltage ranges.
Supply support for HEF4094BTTJ 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 logic, analog, and MOSFET solutions, with leadership in efficiency, reliability, and manufacturability for industrial and automotive markets.
The HEF4094BTTJ belongs to Nexperia's legacy CMOS logic portfolio, designed specifically for robust serial-to-parallel data conversion in harsh environments - emphasizing wide VDD tolerance, ESD resilience, and extended temperature stability.
FAQ
What is the purpose of the dual serial outputs QS1 and QS2?
QS1 delivers the data from shift register stage Q6 on the same LOW-to-HIGH CP transition that shifts it, enabling tight-timing cascading. QS2 delivers the data from stage Q7 on the subsequent HIGH-to-LOW CP transition, accommodating slower edge rates and reducing inter-device skew in long chains - a unique feature absent in most 4094 variants.
Can HEF4094BTTJ operate reliably at 3.3 V supply?
Yes - the HEF4094BTTJ is fully specified down to 3.0 V VDD, with guaranteed VIH = 1.1 V and VIL = 0.4 V at 3.3 V, and propagation delays scaling predictably per datasheet Table 7. It interfaces directly with 3.3 V microcontrollers without level translation.
How does the strobe (STR) input interact with the clock (CP) and output enable (OE)?
STR is asynchronous and independent: it transfers data from the shift register to the storage register whenever HIGH, regardless of CP state or OE level. OE affects only output drivers - it has zero impact on internal register contents or QS1/QS2 behavior.
Is the TSSOP16 package (SOT403-1) thermally superior to the SO16 (SOT109-1) for continuous operation?
Yes - the TSSOP16 package has lower thermal resistance: its Ptot derates at 8.5 mW/K above 91 °C versus 12.4 mW/K above 110 °C for SO16. At +125 °C ambient, the TSSOP16 sustains higher sustained power dissipation, making it preferred for high-density or thermally constrained designs.
HEF4094BTTJ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 4000B
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Shift Register
- Output Type:
- Tri-State
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Function:
- Serial to Parallel
- Voltage - Supply:
- 3V ~ 15V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-TSSOP
HEF4094BTTJ FAQ
1.How can I place an order for HEF4094BTTJ through Aetrix?
Please submit a Request for Quotation (RFQ) for HEF4094BTTJ 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 HEF4094BTTJ reliable?
The price and inventory of HEF4094BTTJ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for HEF4094BTTJ is usually 5 days.
3.What payment methods are accepted for HEF4094BTTJ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for HEF4094BTTJ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for HEF4094BTTJ?
HEF4094BTTJ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your HEF4094BTTJ 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 HEF4094BTTJ?
For technical support, including HEF4094BTTJ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your HEF4094BTTJ requirements.
6.How does Aetrix verify that HEF4094BTTJ is sourced from the original manufacturer or authorized distributors?
All HEF4094BTTJ 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 HEF4094BTTJ meets industry standards.
7.What is the process for return or replacement of HEF4094BTTJ?
All HEF4094BTTJ units undergo pre-shipment inspection (PSI). If there is an issue with HEF4094BTTJ, 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 HEF4094BTTJ part is unused and in its original packaging.
Return procedure for HEF4094BTTJ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
HEF4094BTTJ 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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