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NXP Semiconductors 74LV574DB,118
- Part No.:
- 74LV574DB,118
- Manufacturer:
- NXP Semiconductors
- Category:
- Flip Flops
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74LV574DB,118.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,110
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Product details
Overview
74LV574DB,118 from NXP Semiconductors is an octal D-type flip-flop with positive-edge-triggered clock input (CP), non-inverting 3-state outputs, and common output enable (OE) for bus-oriented digital systems. It operates across 1.0 V to 5.5 V supply voltage, supports −40 °C to +125 °C ambient range, and features 20-pin SSOP package. It stores parallel data on rising CP edge and enables/disables all eight outputs simultaneously via OE.
For engineers reviewing the 74LV574DB,118 datasheet, 74LV574DB,118 pinout, 74LV574DB,118 application, or 74LV574DB,118 equivalent, this device serves as a low-voltage, high-speed latch for address/data bus buffering, microcontroller I/O expansion, and synchronous register storage in industrial control and embedded logic designs.
Technical Context
The 74LV574DB,118 implements eight independent D-type latches synchronized to the LOW-to-HIGH transition of CP. Each D-input must meet set-up (tsu = 13 ns min at VCC = 3.3 V) and hold (th = −2 ns min) timing requirements relative to CP edge. Its CMOS Si-gate architecture ensures TTL-level compatibility when VCC is 2.7 V–3.6 V.
Output enable (OE) controls all Q0–Q7 terminals simultaneously: OE = LOW enables non-inverting outputs; OE = HIGH places outputs in high-impedance OFF-state without affecting internal latch states. Propagation delay (tpd) is 13 ns typical at VCC = 3.3 V and CL = 15 pF, supporting up to 70 MHz maximum clock frequency under those conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.0 V to 5.5 V - supports single-supply operation across legacy 3.3 V and modern ultra-low-voltage 1.2 V/1.8 V domains |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive, industrial PLC, and extended-range embedded applications |
| Propagation Delay | 13 ns typical (VCC = 3.3 V, CL = 15 pF) - enables reliable timing in 50+ MHz synchronous bus interfaces |
| Maximum Clock Frequency | 70 MHz typical (VCC = 3.0–3.6 V) - suitable for high-speed data capture in FPGA peripheral interfaces and microcontroller glue logic |
| Output Drive Strength | ±8 mA (VOH/VOL at VCC = 3.0 V) - sufficient to drive standard CMOS loads and short PCB traces without external buffering |
| Input Compatibility | TTL-level inputs accepted at VCC = 2.7–3.6 V - allows direct interfacing with legacy 5 V logic families without level shifters |
| ESD Protection | HBM > 2000 V, MM > 200 V - enhances robustness during board assembly and field handling |
Pinout & Package
74LV574DB,118 uses the SSOP20 (SOT339-1) package: plastic shrink small outline, 20 leads, 5.3 mm body width, 0.65 mm lead pitch, and gull-wing surface-mount configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Output Enable Input | Active-LOW control signal enabling/disabling all Q0–Q7 outputs; does not affect internal latch state |
| 2–9 (D0–D7) | Data Inputs | Asynchronous parallel data inputs; each samples on rising CP edge if set-up/hold times met |
| 10 (GND) | Ground Reference | 0 V return path for all internal circuitry and output drivers; requires low-impedance PCB connection |
| 11 (CP) | Clock Input | Positive-edge-triggered master clock; rising transition latches D0–D7 into respective flip-flops |
| 12–19 (Q0–Q7) | Data Outputs | Non-inverting 3-state outputs; reflect stored Dn values when OE = LOW, high-Z when OE = HIGH |
| 20 (VCC) | Supply Voltage | Primary power rail (1.0–5.5 V); decoupling capacitor required near pin for noise suppression |
Key Features
| Feature | Design Value |
|---|---|
| Wide Supply Range | 1.0 V to 5.5 V operation enables use in mixed-voltage systems and battery-powered devices with varying rail voltages |
| 3-State Bus Interface | Common OE input simplifies bus arbitration in multi-master systems by allowing clean output isolation without latch reset |
| Low-Voltage TTL Compatibility | Accepts standard TTL input thresholds at VCC ≥ 2.7 V - eliminates need for external level translators in hybrid 3.3 V/5 V designs |
| High-Speed Performance | 13 ns typical propagation delay and 70 MHz max clock frequency support real-time data capture in fast digital subsystems |
| Extended Temperature Rating | −40 °C to +125 °C qualification ensures stable operation in harsh environments such as motor drives and industrial automation controllers |
Applications
| Industrial PLC I/O Expansion | Microcontroller Address Latching |
|---|---|
Use Scenario: Adding parallel digital I/O capability to programmable logic controllers using limited GPIO resources. IC Role / Device Role / Timing Role: Acts as an 8-bit output latch, holding actuator control signals while freeing MCU pins for other functions. Use Value: Enables deterministic, glitch-free output updates synchronized to system clock edges - critical for safety-critical motion control sequences. | Use Scenario: Isolating and latching address bus signals during memory-mapped peripheral access in 8-bit/16-bit microcontroller systems. IC Role / Device Role / Timing Role: Captures upper/lower address byte on rising CP edge, then holds stable address during full memory cycle. Use Value: Eliminates address bus contention and timing violations when interfacing slower peripherals like LCD controllers or EEPROMs. |
| FPGA Configuration Data Buffering | Digital Test Equipment Signal Capture |
Use Scenario: Buffering configuration bitstreams between FPGA JTAG interface and configuration PROM in reprogrammable logic systems. IC Role / Device Role / Timing Role: Stores and presents parallel configuration data to FPGA during power-up or reconfiguration phases. Use Value: Provides clean, noise-immune data delivery with precise edge-aligned timing - reducing configuration failure rates in high-reliability systems. | Use Scenario: Capturing parallel digital stimulus/response data from DUTs in automated test equipment (ATE) platforms. IC Role / Device Role / Timing Role: Synchronizes incoming 8-bit data streams to system sampling clock and buffers results for serial upload. Use Value: Ensures accurate timestamp alignment and eliminates metastability in high-throughput digital pattern capture at up to 70 MSPS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HC574D,653 | Higher minimum supply voltage (2.0 V), higher propagation delay (22 ns typ at 4.5 V), no 1.0 V operation | Suitable only for 3 V–5 V systems; less ideal for ultra-low-power or mixed-voltage designs | Select when legacy HC speed/power trade-off is acceptable and 1.0 V operation is unnecessary |
| SN74LV574APW | Same LV family, identical electrical specs, TSSOP20 package (4.4 mm width vs. SSOP20's 5.3 mm) | Requires PCB layout revision due to different footprint and thermal pad absence | Choose for space-constrained boards where smaller body width and thinner profile are prioritized over SSOP20 mechanical compatibility |
Compared with 74LV574DB,118, the 74HC574D,653 lacks ultra-low-voltage capability but offers broader vendor availability, while the SN74LV574APW matches all electrical behavior but demands layout adaptation for its narrower TSSOP20 footprint.
Availability
74LV574DB,118 is available at Aetrix Electronics and suitable for industrial automation, embedded controller design, and digital test equipment requiring stable component supply across extended temperature ranges and mixed-voltage operation.
Supply support for 74LV574DB,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
NXP Semiconductors is a global semiconductor company headquartered in Eindhoven, Netherlands, specializing in secure connectivity solutions for automotive, industrial, and IoT applications.
The 74LV574DB,118 belongs to NXP's 74LV logic family, designed specifically for low-voltage, high-noise-immunity digital interfacing in resource-constrained and thermally demanding embedded systems.
FAQ
What is the minimum supply voltage supported by the 74LV574DB,118?
The 74LV574DB,118 supports a minimum supply voltage of 1.0 V, enabling operation in ultra-low-power applications such as battery-backed systems and energy-harvesting devices. This specification is guaranteed per NXP's recommended operating conditions, with static characteristics validated down to 1.2 V and functional operation confirmed at 1.0 V when inputs are driven to GND or VCC levels.
Does the 74LV574DB,118 support TTL-level input signals?
Yes, the 74LV574DB,118 accepts TTL input voltage levels when VCC is between 2.7 V and 3.6 V, as specified in its static characteristics table. This allows direct connection to legacy 5 V TTL outputs without level-shifting circuitry, simplifying integration in mixed-signal or upgrade-path designs where both LVCMOS and TTL logic coexist.
What is the function of the OE pin on the 74LV574DB,118?
The OE (Output Enable) pin on the 74LV574DB,118 is an active-LOW control input that enables or disables all eight Q0–Q7 outputs simultaneously. When OE is LOW, outputs reflect the latched D0–D7 values; when OE is HIGH, outputs enter high-impedance OFF-state. Critically, OE operation does not alter the internal flip-flop states - data remains preserved regardless of OE level.
Can the 74LV574DB,118 be used in automotive under-hood applications?
Yes, the 74LV574DB,118 is qualified for operation from −40 °C to +125 °C, meeting the temperature requirements for many automotive under-hood applications such as engine control modules and transmission control units. Its HBM ESD rating (>2000 V) and robust noise immunity further support deployment in electrically noisy vehicle environments.
How does the 74LV574DB,118 differ from the 74HC574 in terms of voltage range and compatibility?
The 74LV574DB,118 operates from 1.0 V to 5.5 V and is pin- and functionally compatible with the 74HC574, but adds true low-voltage capability below 2.0 V and improved noise margins at 3.3 V. Unlike the HC variant, the LV version guarantees functionality at 1.0 V and accepts TTL inputs at VCC = 2.7–3.6 V - making it more versatile in modern mixed-voltage systems where the 74HC574 would fail to operate reliably below 2.0 V.
74LV574DB,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LV
- Package/Case:
- 20-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Standard
- Type:
- D-Type
- Output Type:
- Tri-State, Non-Inverted
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Clock Frequency:
- 70 MHz
- Max Propagation Delay @ V, Max CL:
- 17ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 16mA, 16mA
- Voltage - Supply:
- 1V ~ 5.5V
- Current - Quiescent (Iq):
- 20 µA
- Input Capacitance:
- 3.5 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SSOP
74LV574DB,118 FAQ
1.How can I place an order for 74LV574DB,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LV574DB,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 74LV574DB,118 reliable?
The price and inventory of 74LV574DB,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LV574DB,118 is usually 5 days.
3.What payment methods are accepted for 74LV574DB,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LV574DB,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LV574DB,118?
74LV574DB,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LV574DB,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 74LV574DB,118?
For technical support, including 74LV574DB,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LV574DB,118 requirements.
6.How does Aetrix verify that 74LV574DB,118 is sourced from the original manufacturer or authorized distributors?
All 74LV574DB,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 74LV574DB,118 meets industry standards.
7.What is the process for return or replacement of 74LV574DB,118?
All 74LV574DB,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74LV574DB,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 74LV574DB,118 part is unused and in its original packaging.
Return procedure for 74LV574DB,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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