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NXP Semiconductors 74LV164DB,118
- Part No.:
- 74LV164DB,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Shift Registers
- Package:
- 14-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74LV164DB,118.pdf
- Description:
- SERIAL IN PARALLEL OUT, LV/LV-A/
- Quantity:
- Payment:
- Shipping:
Inventory:14,781
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Product details
Overview
74LV164DB,118 from Nexperia is an 8-bit serial-in/parallel-out CMOS shift register with dual gated serial inputs (DSA and DSB), asynchronous active-LOW master reset (MR), and edge-triggered clock (CP) operating on LOW-to-HIGH transitions. It supports supply voltages from 1.0 V to 5.5 V, delivers propagation delays as low as 12 ns at VCC = 3.3 V/CL = 15 pF, and operates across –40 °C to +125 °C - used in LED matrix drivers, GPIO expansion, and industrial control logic sequencing.
For engineers reviewing the 74LV164DB,118 datasheet, 74LV164DB,118 pinout, 74LV164DB,118 application, or 74LV164DB,118 equivalent, key selection criteria include its dual-input gating logic, wide VCC range enabling mixed-voltage system interfacing, guaranteed operation down to 1.0 V, and SO14 package compatibility with legacy 74-series board layouts.
Technical Context
The device implements a synchronous 8-stage shift register with parallel output latching controlled solely by the rising edge of CP. Data entry is enabled via logical AND of DSA and DSB: either input may serve as an active-HIGH enable for the other, allowing flexible serial data routing without external gating logic.
Its asynchronous MR overrides all clocked behavior, forcing Q0–Q7 LOW independently of CP or data inputs. Input clamp diodes permit safe interface to voltages exceeding VCC when used with current-limiting resistors - a critical feature for level-shifting in multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Function | 8-bit serial-in/parallel-out shift register with dual gated inputs and asynchronous reset |
| Supply Voltage Range | 1.0 V to 5.5 V - enables direct use in 1.2 V, 1.8 V, 2.5 V, 3.3 V, and 5 V systems |
| Propagation Delay (CP to Qn) | 12 ns typical at VCC = 3.3 V, CL = 15 pF - supports >70 MHz clock rates in high-speed logic interfaces |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive modules and industrial motor drives |
| Input Voltage Compatibility | TTL-level inputs supported at VCC = 2.7 V to 3.6 V - allows direct connection to legacy 5 V TTL outputs without level shifters |
| ESD Protection | HBM >2000 V, CDM >1000 V - reduces need for external ESD protection in exposed I/O paths |
| Output Drive Strength | ±6 mA at VCC = 3.0 V - sufficient to directly drive LEDs or standard CMOS inputs without buffers |
Pinout & Package
74LV164DB,118 is supplied in SO14 (SOT108-1) plastic small outline package: 14-pin, 3.9 mm body width, 1.27 mm lead pitch, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DSA) | Serial data input A | Primary serial input; gated with DSB - HIGH enables data entry through DSB |
| 2 (DSB) | Serial data input B | Secondary serial input; gated with DSA - HIGH enables data entry through DSA |
| 3 (Q0) | Parallel output 0 | LSB of shifted data; updated on each CP rising edge after first valid bit |
| 4 (Q1) | Parallel output 1 | Second bit of 8-bit parallel output bus; phase-aligned with Q0–Q7 |
| 5 (Q2) | Parallel output 2 | Third bit; maintains strict bit-order integrity during shift operations |
| 6 (Q3) | Parallel output 3 | Fourth bit; no internal latching delay between outputs - all Q0–Q7 change simultaneously |
| 7 (GND) | Ground reference | 0 V return path; must be low-impedance for stable VOL and noise immunity |
| 8 (CP) | Clock input | Rising-edge triggered; LOW-to-HIGH transition advances shift register and updates outputs |
| 9 (MR) | Master reset | Asynchronous active-LOW; forces Q0–Q7 LOW regardless of CP or data state |
| 10 (Q4) | Parallel output 4 | Fifth bit; identical timing and drive characteristics as Q0–Q3 |
| 11 (Q5) | Parallel output 5 | Sixth bit; electrically matched to other outputs for uniform fanout loading |
| 12 (Q6) | Parallel output 6 | Seventh bit; supports cascading via Q6→DSA/DSB of downstream device |
| 13 (Q7) | Parallel output 7 | MSB; provides full 8-bit parallel word for microcontroller readback or display driver interface |
| 14 (VCC) | Supply voltage | Power rail for core logic and I/O; decoupling capacitor required within 10 mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Dual gated serial inputs | DSA and DSB act as mutual enables - eliminates need for external AND gate in daisy-chain or multiplexed data paths |
| Wide VCC range (1.0 V to 5.5 V) | Single part replaces multiple voltage-specific 74-series variants - simplifies BOM and inventory management |
| Asynchronous master reset | MR forces immediate Q0–Q7 = LOW without waiting for clock edge - essential for deterministic power-up initialization |
| Clamp diode-equipped inputs | Enables safe interface to signals up to VCC + 0.5 V using series resistors - avoids external clamping diodes in mixed-supply systems |
| Industrial temperature range | Specified from –40 °C to +125 °C - validated for use in motor control enclosures and outdoor IoT nodes |
Applications
| LED Matrix Driver | Microcontroller GPIO Expander |
|---|---|
Use Scenario: Driving 8×8 monochrome LED displays in signage or instrumentation panels using minimal MCU pins. IC Role / Device Role / Timing Role: Serial-to-parallel converter that translates SPI-like bitstream into parallel column/row activation signals synchronized to CP. Use Value: Reduces MCU pin count from 16 (8 row + 8 column) to 3 (CP, DSA/DSB, MR), while maintaining precise timing control over LED refresh cycles. | Use Scenario: Adding 8 digital I/O lines to an STM32L0 microcontroller with limited GPIO availability in space-constrained sensor nodes. IC Role / Device Role / Timing Role: Parallel output latch extending MCU's native port capability; MR ensures known state on power-up before firmware initializes. Use Value: Enables reliable control of relays, status LEDs, and sensors without requiring additional microcontrollers or complex software bit-banging. |
| Industrial Control Logic Sequencer | Legacy System Interface Adapter |
Use Scenario: Implementing timed sequence logic for PLC I/O modules controlling conveyor belt stages and pneumatic valves. IC Role / Device Role / Timing Role: Shift register stage in a larger state machine; CP driven by programmable timer, MR tied to emergency stop signal. Use Value: Provides deterministic, glitch-free output transitions across all 8 bits - critical for avoiding unintended actuator activation during state changes. | Use Scenario: Interfacing modern 3.3 V FPGAs to legacy 5 V TTL backplanes in test equipment upgrades. IC Role / Device Role / Timing Role: Level-translating serial buffer; accepts 5 V TTL inputs at VCC = 3.3 V, outputs 3.3 V CMOS-compatible signals. Use Value: Eliminates discrete level shifters and associated board area, while maintaining timing integrity via sub-15 ns propagation delay. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit serial-in/parallel-out shift register applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LV164APWRE4 | TSSOP14 package (SOT402-1); identical electrical specs; 0.65 mm pitch vs SO14's 1.27 mm | Better thermal performance and smaller footprint; requires finer-pitch PCB assembly capability | Select for space-constrained designs where reflow process supports TSSOP handling |
| 74LV164PW,118 | Same SO14 pinout but TSSOP14 package; otherwise functionally identical to 74LV164DB,118 | No layout change needed if migrating from SO14 to TSSOP14; same pin numbering and signal mapping | Choose when upgrading to higher-density packaging without redesigning schematic or layout |
Compared with SN74LV164APWRE4 and 74LV164PW,118, the 74LV164DB,118 offers proven manufacturability in SO14 - ideal for cost-sensitive, high-volume industrial boards where legacy tooling and inspection processes are optimized for 1.27 mm pitch.
Availability
74LV164DB,118 is available at Aetrix Electronics and suitable for LED display drivers, microcontroller GPIO expansion, and industrial control logic sequencing requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74LV164DB,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 delivering high-performance logic, analog, and MOSFET solutions with focus on efficiency, reliability, and sustainability.
The 74LV164 belongs to Nexperia's LV (Low-Voltage) logic family - engineered for robust operation across 1.0 V to 5.5 V rails and designed specifically for energy-efficient industrial, consumer, and automotive-qualified subsystems.
FAQ
What is the minimum supply voltage for guaranteed operation of 74LV164DB,118?
The 74LV164DB,118 is fully specified and guaranteed functional down to 1.0 V supply voltage, with static characteristics validated from 1.2 V and dynamic operation confirmed at 1.0 V using GND/VCC input levels - making it suitable for ultra-low-power battery-operated systems.
Can DSA and DSB both be used simultaneously for data input?
No - DSA and DSB are logically ANDed; only one serves as the active data path while the other acts as an enable. To enter data, one input must be held HIGH (enable) while the other carries the serial bitstream. This prevents metastability and ensures deterministic shift behavior.
Is the SO14 package of 74LV164DB,118 RoHS compliant and lead-free?
Yes - the 74LV164DB,118 in SO14 (SOT108-1) package is manufactured per RoHS Directive 2011/65/EU and is lead-free, with matte tin (Sn) termination finish and halogen-free molding compound, certified per Nexperia's Declaration of Conformity.
Does 74LV164DB,118 support hot insertion or live swapping?
No - the device lacks hot-swap protection circuitry. Applying VCC while inputs are biased violates absolute maximum ratings (e.g., VI > VCC + 0.5 V). Power sequencing must ensure VCC is stable before asserting any input signals to prevent latch-up or permanent damage.
74LV164DB,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LV
- Package/Case:
- 14-SSOP (0.209", 5.30mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- Shift Register
- Output Type:
- Push-Pull
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Function:
- Serial to Parallel
- Voltage - Supply:
- 1V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SSOP
74LV164DB,118 FAQ
1.How can I place an order for 74LV164DB,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LV164DB,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 74LV164DB,118 reliable?
The price and inventory of 74LV164DB,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LV164DB,118 is usually 5 days.
3.What payment methods are accepted for 74LV164DB,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LV164DB,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LV164DB,118?
74LV164DB,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LV164DB,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 74LV164DB,118?
For technical support, including 74LV164DB,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LV164DB,118 requirements.
6.How does Aetrix verify that 74LV164DB,118 is sourced from the original manufacturer or authorized distributors?
All 74LV164DB,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 74LV164DB,118 meets industry standards.
7.What is the process for return or replacement of 74LV164DB,118?
All 74LV164DB,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74LV164DB,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 74LV164DB,118 part is unused and in its original packaging.
Return procedure for 74LV164DB,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LV164DB,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
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