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Nexperia USA Inc. 74LV164DB,112
- Part No.:
- 74LV164DB,112
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Shift Registers
- Package:
- 14-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74LV164DB,112.pdf
- Description:
- IC 8BIT SHIFT REGISTER 14SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,149
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Product details
Overview
74LV164DB,112 from Nexperia is an 8-bit serial-in/parallel-out CMOS shift register with dual gated serial inputs (DSA and DSB), asynchronous master reset (MR), and edge-triggered clock (CP) operating on LOW-to-HIGH transitions. It supports 1.0 V to 5.5 V supply voltage, delivers 8 parallel outputs (Q0–Q7), and functions reliably from −40 °C to +125 °C - used in LED matrix drivers, I/O expansion for microcontrollers, and serial-to-parallel data conversion in industrial control panels.
For engineers reviewing the 74LV164DB,112 datasheet, 74LV164DB,112 pinout, 74LV164DB,112 application, or 74LV164DB,112 equivalent, key selection considerations include its dual-input gating logic, wide VCC range enabling mixed-voltage system interfacing, asynchronous reset behavior, and propagation delay of 12 ns at 3.3 V/15 pF - critical for timing-critical serial data staging and output latching.
Technical Context
The 74LV164DB,112 implements a synchronous 8-stage shift register with independent serial data enable logic: either DSA or DSB can act as an active-HIGH gate for the other input, allowing flexible serial data routing. Its CP input triggers on the LOW-to-HIGH transition, and MR forces all Q outputs LOW asynchronously - decoupling reset timing from clock edges.
Input clamp diodes permit safe interfacing to voltages exceeding VCC when used with current-limiting resistors. The device complies with JEDEC standards JESD8-7 (1.65–1.95 V), JESD8-5 (2.3–2.7 V), JESD8C (2.7–3.6 V), and JESD36 (4.5–5.5 V), ensuring interoperability across legacy and low-voltage logic families.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage (VCC) | 1.0 V to 5.5 V - enables direct interface with 1.2 V, 1.8 V, 2.5 V, 3.3 V, and 5 V logic domains without level shifters. |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive modules, industrial PLCs, and high-ambient embedded systems. |
| Propagation Delay (tpd) | 12 ns at VCC = 3.3 V, CL = 15 pF - supports >70 MHz clock rates for real-time serial data capture and parallel output update. |
| Output Drive Strength | ±6 mA at VCC = 3.0 V - sufficient to directly drive LEDs, small-signal MOSFET gates, or TTL-compatible inputs without external buffers. |
| Input Thresholds | VIL ≤ 0.8 V, VIH ≥ 2.0 V at VCC = 2.7–3.6 V - ensures robust noise margin and compatibility with 3.3 V LVTTL and LVCMOS interfaces. |
| Power Dissipation | 500 mW max at Tamb ≤ 100 °C (SO14 package) - supports continuous operation in thermally constrained PCB layouts with minimal heatsinking. |
| ESD Protection | HBM > 2000 V, CDM > 1000 V - reduces risk of field failure during handling and board assembly in automated SMT lines. |
Pinout & Package
74LV164DB,112 is supplied in SO14 (SOT108-1) plastic small outline package: 14-lead, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads. Pin 1 index located at top-left corner with notch or bevel marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DSA) | Serial Data Input A | Primary serial input; gated by DSB - active only when DSB = HIGH; accepts TTL levels at VCC ≥ 2.7 V. |
| 2 (DSB) | Serial Data Input B | Secondary serial input; acts as enable for DSA - active only when DSA = HIGH; provides dual-input flexibility for daisy-chaining or multiplexed data streams. |
| 3 (Q0) | Parallel Output 0 | LSB output; shifts first from DSA/DSB; synchronized to CP rising edge; drives loads up to 6 mA. |
| 4 (Q1) | Parallel Output 1 | Second-stage output; one clock cycle delayed from Q0; identical electrical specs to Q0–Q7. |
| 5 (Q2) | Parallel Output 2 | Third-stage output; maintains consistent timing skew (<1 ns variation across Q0–Q7 at same VCC). |
| 6 (Q3) | Parallel Output 3 | Fourth-stage output; shares common internal register stage; no additional latency vs. Q0–Q2. |
| 7 (GND) | Ground Reference | 0 V return path for all internal circuitry and output drivers; must be low-impedance for stable VOL/VOLP performance. |
| 8 (CP) | Clock Input | Edge-triggered input; samples DSA/DSB on LOW-to-HIGH transition; requires minimum pulse width of 11 ns at VCC = 3.3 V. |
| 9 (MR) | Master Reset | Asynchronous active-LOW reset; forces Q0–Q7 LOW regardless of CP state; recovery time to next valid shift is 14 ns min at VCC = 3.3 V. |
| 10 (Q4) | Parallel Output 4 | Fifth-stage output; electrically identical to Q0–Q3; supports cascaded shift register configurations via Q7→DSA/DSB. |
| 11 (Q5) | Parallel Output 5 | Sixth-stage output; maintains rail-to-rail VOH/VOL across full temperature range (−40 °C to +125 °C). |
| 12 (Q6) | Parallel Output 6 | Seventh-stage output; used in 7-segment display decoding where MSB alignment matters for digit mapping. |
| 13 (Q7) | Parallel Output 7 | MSB output; feeds next-stage serial input in multi-device chains; exhibits same tpd as Q0 (12 ns @ 3.3 V). |
| 14 (VCC) | Supply Voltage | Positive supply rail; powers all internal logic and output drivers; bypass capacitor (100 nF) required within 5 mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-gated serial inputs | DSA and DSB provide hardware-selectable data path control - eliminates need for external AND gates in multi-source serial bus architectures. |
| Wide VCC range (1.0–5.5 V) | Supports single-supply operation across 1.2 V FPGA I/O banks, 1.8 V microcontroller peripherals, and 5 V legacy backplanes without translation. |
| Asynchronous master reset | MR clears all flip-flops independently of CP timing - essential for deterministic power-up initialization and fault recovery in safety-critical sequencers. |
| Clamp diode-equipped inputs | Enables overvoltage-tolerant interfacing (e.g., 5 V signals into 3.3 V system) using simple series resistors - reduces BOM count vs. discrete protection solutions. |
| Low ground bounce (VOLP < 0.8 V) | Minimizes switching noise coupling into analog sections or adjacent digital rails - critical for mixed-signal PCBs with ADCs or precision references. |
Applications
| LED Matrix Driver | Microcontroller I/O Expander |
|---|---|
|
Use Scenario: Driving 8×8 monochrome LED displays in industrial HMI panels where MCU GPIOs are constrained. IC Role / Device Role / Timing Role: Serial-to-parallel converter that accepts SPI-shifted data from MCU and presents it as static 8-bit parallel output for column/row scanning. Use Value: Reduces MCU pin count by 7 (vs. direct GPIO driving), enables uniform brightness control via PWM on Q0–Q7, and tolerates 5 V LED supply while operating from 3.3 V MCU rail. |
Use Scenario: Adding 8 general-purpose digital outputs to an ARM Cortex-M0+ with only 12 free GPIOs. IC Role / Device Role / Timing Role: Synchronous output latch that extends MCU's native I/O capability using standard SPI or bit-banged UART TX line as serial source. Use Value: Eliminates need for dedicated I/O expander ICs with I²C/SPI interfaces; leverages existing firmware UART/SPI stack; supports hot-plug detection via MR-driven initialization. |
| Industrial Serial Data Buffer | Legacy Bus Interface Adapter |
|
Use Scenario: Temporarily storing incoming RS-485 data frames before CRC validation and processing in PLC main controller. IC Role / Device Role / Timing Role: First-stage serial buffer that captures 8-bit chunks from differential receiver and holds them for parallel readout by CPU address/data bus. Use Value: Provides deterministic 1-cycle latency between frame arrival and parallel availability; MR allows immediate flush on protocol error; operates reliably at 85 °C ambient. |
Use Scenario: Interfacing modern 3.3 V SoC to legacy 5 V parallel printer port (Centronics) without level-shifting ICs. IC Role / Device Role / Timing Role: Voltage-tolerant parallel output driver that accepts 3.3 V logic and sources/sinks 6 mA to meet 5 V TTL load requirements. Use Value: Enables direct connection to 5 V printer strobe/acknowledge lines; clamp diodes protect SoC pins from 5 V backfeed; eliminates 2–3 discrete transistors per line. |
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 |
|---|---|---|---|
| SN74LV164APWR | TI part in TSSOP-14 (SOT402-1); identical logic function but higher ICC (max 160 μA vs. 20 μA typical for Nexperia); slightly longer tpd (14 ns vs. 12 ns @ 3.3 V). | Same use cases, but less suitable for ultra-low-power battery-operated nodes due to higher quiescent current. | Select when TI-authorized supply chain is mandated or when TSSOP footprint is already standardized in layout. |
| 74HC164PW,118 | Nexperia HC variant in TSSOP-14; VCC limited to 2.0–6.0 V (no 1.0–1.95 V support); higher VOL (0.55 V vs. 0.40 V @ 6 mA); slower fmax (28 MHz vs. 70 MHz @ 3.3 V). | Not usable in 1.2 V or 1.8 V systems; marginal noise margin in 3.3 V designs with long traces or heavy capacitive loads. | Choose only if HC-speed compatibility with legacy 74HC designs is required and 1.0–1.95 V operation is unnecessary. |
Compared with SN74LV164APWR and 74HC164PW,118, the 74LV164DB,112 offers superior low-voltage operation down to 1.0 V, lowest propagation delay in its family, and best static current efficiency - making it optimal for energy-constrained, high-speed, and mixed-voltage embedded systems.
Availability
74LV164DB,112 is available at Aetrix Electronics and suitable for LED matrix drivers, microcontroller I/O expanders, industrial serial data buffers, and legacy bus interface adapters requiring stable component supply across automotive, industrial, and consumer electronics programs.
Supply support for 74LV164DB,112 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 focused on high-volume, high-reliability logic, discrete, and MOSFET components - delivering energy-efficient, scalable solutions for automotive, industrial, and computing markets.
The 74LV164DB,112 belongs to Nexperia's LV (Low-Voltage) logic family, engineered specifically for robust operation across 1.0 V to 5.5 V supplies while maintaining CMOS power efficiency and TTL-compatible input thresholds - targeting cost-sensitive, space-constrained embedded control applications.
FAQ
What is the minimum VCC required for guaranteed operation of the 74LV164DB,112?
The 74LV164DB,112 is fully specified and guaranteed to operate down to VCC = 1.0 V, with static characteristics validated from 1.2 V and functional operation confirmed at 1.0 V using GND/VCC input levels. This enables direct integration with 1.2 V FPGA I/O banks and ultra-low-power microcontrollers without level translation.
Can DSA and DSB both be driven simultaneously, and what happens to data flow?
No - DSA and DSB are logically ANDed internally; data shifts only when one input is HIGH and the other is driven with the serial data stream. If both are HIGH, the last valid bit latched before the simultaneous HIGH condition persists; if both are LOW, no shifting occurs. This gating prevents metastability and ensures deterministic data entry.
How does the master reset (MR) interact with ongoing clock activity?
MR is asynchronous and overrides all clock activity: asserting MR LOW immediately forces Q0–Q7 to LOW within 14 ns (min) at VCC = 3.3 V, regardless of CP state or timing. Clock edges occurring during MR assertion are ignored, and valid shifting resumes only after MR returns HIGH and meets trec (11 ns min) before the next CP rising edge.
Is the SO14 package (SOT108-1) of 74LV164DB,112 RoHS-compliant and lead-free?
Yes - the 74LV164DB,112 in SO14 (SOT108-1) packaging is manufactured per RoHS Directive 2011/65/EU and is lead-free, with matte tin (Sn) termination finish. The device meets Nexperia's "Green" material compliance standard, including absence of halogenated flame retardants and antimony trioxide.
74LV164DB,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LV
- Package/Case:
- 14-SSOP (0.209", 5.30mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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,112 FAQ
1.How can I place an order for 74LV164DB,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LV164DB,112 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,112 reliable?
The price and inventory of 74LV164DB,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LV164DB,112 is usually 5 days.
3.What payment methods are accepted for 74LV164DB,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LV164DB,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LV164DB,112?
74LV164DB,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LV164DB,112 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,112?
For technical support, including 74LV164DB,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LV164DB,112 requirements.
6.How does Aetrix verify that 74LV164DB,112 is sourced from the original manufacturer or authorized distributors?
All 74LV164DB,112 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,112 meets industry standards.
7.What is the process for return or replacement of 74LV164DB,112?
All 74LV164DB,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74LV164DB,112, 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,112 part is unused and in its original packaging.
Return procedure for 74LV164DB,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LV164DB,112 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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