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Nexperia USA Inc. 74HC4094D,652
- Part No.:
- 74HC4094D,652
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Shift Registers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74HC4094D,652.pdf
- Description:
- IC REGISTER BUS 8STAGE 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,016
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Product details
Overview
74HC4094D,652 from Nexperia is an 8-bit serial-in/parallel-out shift-and-store bus register with separate shift and storage clocks, 3-state outputs, dual serial outputs (QS1/QS2) for daisy-chaining, and CMOS-level inputs. It operates from 2.0 V to 6.0 V across –40 °C to +125 °C and is used in LED matrix drivers, segment displays, and I/O expansion where cascaded data latching is required.
For engineers reviewing the 74HC4094D,652 datasheet, 74HC4094D pinout, 74HC4094D application, or 74HC4094D equivalent, key selection criteria include propagation delay (≤39 ns at VCC = 4.5 V), 3-state output control via OE, strobe-synchronized parallel output update, and SO16 package compatibility with standard PCB footprints.
Technical Context
The device implements two synchronized but independent 8-bit registers: a serial-shift register clocked on CP rising edges, and a parallel-output storage register loaded on STR high. QS1 delivers shifted data on the same CP edge for fast-edge cascading; QS2 delays output by one CP edge for slow-edge synchronization.
Its 3-state outputs are controlled solely by OE - independent of register state - enabling bus sharing without disturbing internal data. Input clamp diodes allow safe interfacing to voltages exceeding VCC when current-limiting resistors are used.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | 74HC - CMOS-compatible, rail-to-rail output swing, low static power |
| Supply Voltage Range | 2.0 V to 6.0 V - supports mixed-voltage system interfacing and battery-powered operation |
| Propagation Delay (CP→QPn) | ≤39 ns at VCC = 4.5 V - enables reliable 20+ MHz serial clock rates in cascaded configurations |
| Output Drive Strength | ±4.0 mA at VCC = 4.5 V - sufficient to directly drive LEDs or TTL inputs without external buffers |
| Operating Temperature | –40 °C to +125 °C - qualified for automotive under-hood and industrial control environments |
| ESD Protection | HBM >2000 V, CDM >1000 V - robust handling in automated assembly and field-replaceable modules |
Pinout & Package
74HC4094D,652 uses the SO16 plastic small outline package (SOT109-1), 16-pin, 3.9 mm body width, with standard 1.27 mm pitch and gull-wing leads suitable for reflow soldering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (STR) | Strobe input | Transfers data from shift register to storage register on HIGH; enables synchronous parallel output update |
| 2 (D) | Serial data input | Accepts new bit on each LOW-to-HIGH CP transition; feeds first stage of 8-bit shift register |
| 3 (CP) | Shift clock input | Rising-edge triggered; controls serial shifting and determines QS1/QS2 timing relationship |
| 4–7, 11–14 (QP0–QP7) | Parallel outputs | 8-bit latched outputs enabled only when OE = HIGH; high-impedance when OE = LOW |
| 8 (GND) | Ground reference | Return path for all internal logic and output currents; must be low-inductance connection |
| 9 (QS1) | Fast serial output | Same data as QPn one cycle earlier; aligned to CP rising edge for minimal inter-device skew |
| 10 (QS2) | Delayed serial output | Same data as QS1 but delayed by one CP falling edge; simplifies timing in slow-clock cascades |
| 15 (OE) | Output enable | Active-HIGH control of all QPn outputs; no effect on internal register states or QS1/QS2 |
| 16 (VCC) | Supply voltage | Power rail for logic and output stages; decoupling capacitor required within 10 mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Dual serial outputs (QS1/QS2) | Enables flexible daisy-chaining: QS1 for tight-timing systems, QS2 for relaxed clock edge requirements |
| Separate shift and store clocks | Decouples serial loading from parallel output update - eliminates race conditions in multi-stage pipelines |
| 3-state parallel outputs | Allows direct connection to shared data buses without external multiplexers or isolation logic |
| Input clamp diodes | Permits safe interface to signals up to VCC + 0.5 V using series current-limiting resistors |
| Wide temperature range | –40 °C to +125 °C operation verified per JEDEC JESD22-A108 - suitable for engine control units |
Applications
| LED Matrix Driver | Industrial I/O Expander |
|---|---|
Use Scenario: Driving 8×8 monochrome LED arrays in signage or status panels using microcontroller GPIO-limited interfaces. IC Role / Device Role / Timing Role: Serial-to-parallel converter that accepts SPI-like data and presents it simultaneously on eight outputs with strobe-synchronized latch timing. Use Value: Reduces MCU pin count by 7 vs. direct GPIO driving; QS2 output allows reliable chaining of multiple 74HC4094D devices without added timing margin. |
Use Scenario: Adding isolated digital outputs to PLC backplanes or sensor interface modules where space and BOM count are constrained. IC Role / Device Role / Timing Role: Bus register providing buffered, 3-state-controlled outputs synchronized to a central controller's strobe signal. Use Value: Enables hot-swappable I/O modules via OE-controlled bus isolation; meets IEC 61000-4-2 Level 3 ESD immunity due to integrated protection. |
| Segment Display Controller | Remote Control Latch |
Use Scenario: Driving 7-segment or 14-segment alphanumeric displays in HVAC controllers or test equipment front panels. IC Role / Device Role / Timing Role: Holding register that stores decoded digit patterns and drives common-anode/cathode segments with precise output timing. Use Value: Eliminates flicker by updating all segments simultaneously via STR; ±4 mA drive supports direct connection to 20 mA segments. |
Use Scenario: Capturing and holding IR remote command bits in set-top box or audio receiver standby logic. IC Role / Device Role / Timing Role: Low-power shift register retaining state during deep sleep, with STR-triggered snapshot of last received command byte. Use Value: ICC ≤160 μA at 125 °C ensures minimal leakage in always-on receivers; wide VCC range accommodates brown-out tolerant supply rails. |
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 |
|---|---|---|---|
| 74HCT4094D,653 | TTL-compatible inputs (VIH = 2.0 V min); identical pinout and function | Better interoperability with legacy 5 V TTL logic; slightly higher ICC at VCC = 5.5 V | Select when interfacing to 5 V microcontrollers or logic families with marginal VIH margins |
| SN74HC595DR | Single serial output (Q7S), no QS2; different pin mapping; OE active-low | Lacks dual-output timing flexibility; requires external gating for cascaded strobe alignment | Choose only if board layout already uses SN74HC595 footprint and QS2 functionality is unused |
Compared with 74HC4094D,652, the 74HCT4094D,653 offers guaranteed TTL input thresholds but sacrifices some noise margin in mixed-voltage systems, while the SN74HC595DR reduces timing control options and requires redesign for QS2-dependent cascade topologies.
Availability
74HC4094D,652 is available at Aetrix Electronics and suitable for LED matrix drivers, industrial I/O expanders, segment display controllers, and remote control latching applications requiring stable component supply across automotive and industrial temperature ranges.
Supply support for 74HC4094D,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 discrete, logic, and MOSFET solutions with focus on efficiency, reliability, and miniaturization.
The 74HC4094 belongs to Nexperia's HC logic family - designed for low-power, high-noise-immunity digital interfacing in space-constrained industrial and automotive applications.
FAQ
What is the maximum clock frequency supported by 74HC4094D,652?
The device supports up to 24 MHz at VCC = 4.5 V and –40 °C to +85 °C, and 20 MHz across its full –40 °C to +125 °C range. These values derive from measured tW (clock pulse width) and fmax specifications in Table 7 of the official Nexperia datasheet Rev. 10.
Can QS1 and QS2 be used simultaneously to drive different downstream devices?
Yes - QS1 and QS2 provide the same shifted data with deterministic phase offset: QS1 updates on the CP rising edge, QS2 updates on the subsequent CP falling edge. This allows one to feed a fast-responding device (e.g., FPGA input) via QS1 and a slower microcontroller input via QS2 without added synchronization logic.
How does the strobe (STR) input interact with ongoing serial shifting?
STR operates independently of CP: a HIGH on STR transfers the current contents of the shift register into the storage register *without* altering the shift register state. Serial shifting continues uninterrupted, enabling pipelined operation where new data loads while previous data holds on outputs.
Is external pull-up or pull-down required on OE, STR, or CP inputs?
No - all control inputs (OE, STR, CP, D) have no internal pull resistors and must be actively driven. Floating inputs risk metastability or excessive ICC; use microcontroller GPIOs or dedicated logic to ensure defined states during power-up and idle periods.
74HC4094D,652 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- Shift Register
- Output Type:
- Tri-State
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Function:
- Serial to Parallel, Serial
- Voltage - Supply:
- 2V ~ 6V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SO
74HC4094D,652 FAQ
1.How can I place an order for 74HC4094D,652 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC4094D,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 74HC4094D,652 reliable?
The price and inventory of 74HC4094D,652 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC4094D,652 is usually 5 days.
3.What payment methods are accepted for 74HC4094D,652?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC4094D,652 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC4094D,652?
74HC4094D,652 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC4094D,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 74HC4094D,652?
For technical support, including 74HC4094D,652 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC4094D,652 requirements.
6.How does Aetrix verify that 74HC4094D,652 is sourced from the original manufacturer or authorized distributors?
All 74HC4094D,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 74HC4094D,652 meets industry standards.
7.What is the process for return or replacement of 74HC4094D,652?
All 74HC4094D,652 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC4094D,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 74HC4094D,652 part is unused and in its original packaging.
Return procedure for 74HC4094D,652:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74HC4094D,652 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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