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Nexperia USA Inc. 74LVC574APW,112
- Part No.:
- 74LVC574APW,112
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74LVC574APW,112.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,250
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Product details
Overview
74LVC574APW,112 from Nexperia is an octal positive-edge-triggered D-type flip-flop with 3-state outputs, 5 V tolerant I/O, and IOFF partial power-down protection. It operates from 1.2 V to 3.6 V supply, supports mixed-voltage interfacing (3.3 V ↔ 5 V), and features Schmitt-trigger inputs for noise immunity. Used in bus-hold register stages of industrial control logic and data acquisition systems requiring deterministic edge-triggered storage.
For engineers reviewing the 74LVC574APW,112 datasheet, 74LVC574APW,112 pinout, 74LVC574APW,112 application, or 74LVC574APW,112 equivalent, key selection criteria include 3-state timing (enable/disable skew ≤1.5 ns), 5.5 V overvoltage tolerance on all I/O, IOFF leakage <±20 μA at VCC = 0 V, and guaranteed operation from –40 °C to +125 °C.
Technical Context
This device implements eight independent D-type latches synchronized to the rising edge of CP, with output enable (OE) controlling high-impedance state independently of internal register state. The IOFF circuit actively disables outputs when VCC = 0 V, blocking backflow current during partial power-down sequences.
Schmitt-trigger inputs ensure robust operation with slow-rising signals (input transition rate down to 10 ns/V at 3.3 V), while JEDEC-compliant voltage ranges (JESD8-7A/5A/C) and ESD ratings (HBM >2000 V, CDM >1000 V) support reliable deployment in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.2 V to 3.6 V - Enables direct interface with 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters. |
| I/O Voltage Tolerance | Up to 5.5 V - Allows safe connection to 5 V buses while powered from 3.3 V or lower, eliminating external clamping diodes. |
| Propagation Delay (tpd) | 1.5 ns to 9.0 ns (VCC = 3.0–3.6 V) - Supports clock frequencies up to 120 MHz at full temperature range, critical for high-speed data capture. |
| IOFF Leakage Current | <±20 μA at VCC = 0 V - Prevents damaging backfeed current during hot-swap or multi-rail power sequencing. |
| Operating Temperature | –40 °C to +125 °C - Qualified for under-hood automotive modules, motor drives, and industrial PLC I/O expansion cards. |
| Output Drive Strength | ±24 mA (VOH/VOL @ VCC = 3.0 V) - Sufficient to drive 50 pF loads with <9 ns transitions, compatible with standard PCB trace capacitance. |
| Input Hysteresis | Schmitt-trigger action - Rejects noise on slow-rising control lines (e.g., reset, enable) without external RC filtering. |
Pinout & Package
TSSOP20 package (SOT360-1): 20-pin thin shrink small outline, 4.4 mm body width, 0.65 mm pitch, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OE) | Output Enable (active LOW) | Asserting LOW enables Q0–Q7 outputs; HIGH forces all outputs into high-impedance state without affecting stored register values. |
| 2 (VCC) | Positive Supply | 1.2–3.6 V core supply; powers internal logic and output buffers; IOFF circuit monitors this rail to disable outputs at power loss. |
| 3–10 (D0–D7) | Data Inputs | Asynchronous inputs sampled on CP rising edge; 5.5 V tolerant, Schmitt-triggered, with VIH = 2.0 V (min) at 3.3 V supply. |
| 11 (CP) | Clock Input | Positive-edge-triggered; requires minimum pulse width ≥3.3 ns (VCC = 3.3 V); set-up time tsu = 2.0 ns, hold time th = +1.5 ns. |
| 12–19 (Q0–Q7) | Data Outputs | 3-state buffered outputs; VOL ≤ 0.55 V @ 24 mA sink, VOH ≥ 2.2 V @ 24 mA source; 5.5 V tolerant in high-Z state. |
| 10 (GND) | Ground Reference | 0 V reference for all I/O and internal logic; decoupling capacitor must be placed adjacent to Pin 10 and Pin 2. |
| 20 (VCC) | Supply (redundant) | Second VCC pin improves power distribution integrity across 20-pin layout; must be connected to same supply as Pin 2. |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC Range | 1.2 V to 3.6 V operation enables single part to serve multiple voltage domains (e.g., 1.8 V FPGA I/O banks interfacing to 3.3 V microcontrollers). |
| 5 V Tolerant I/O | All inputs and outputs withstand 5.5 V regardless of VCC - eliminates need for external voltage translators in mixed-supply systems. |
| IOFF Partial Power-Down | Outputs automatically enter high-Z when VCC = 0 V, preventing current backflow during board-level power sequencing or hot-plug events. |
| Schmitt-Trigger Inputs | Hysteresis >0.3 V typical ensures clean latching of noisy or slow-rising control signals (e.g., mechanical switch debouncing without external RC). |
| JEDEC Compliance | Fully conforms to JESD8-7A (1.65–1.95 V), JESD8-5A (2.3–2.7 V), and JESD8-C/JESD36 (2.7–3.6 V) - guarantees interoperability with industry-standard logic families. |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
|
Use Scenario: Latching sensor status (door open/closed, seatbelt fastened) before transmission to main MCU via SPI/I²C bridge. IC Role / Device Role / Timing Role: Octal register holding parallel input states; CP synchronized to system clock edge; OE controlled by bridge interface ready signal. Use Value: Eliminates metastability risk during asynchronous sensor sampling; 3-state isolation prevents bus contention during bridge arbitration. |
Use Scenario: Buffering LIN bus transceiver outputs to microcontroller GPIOs in door module assemblies. IC Role / Device Role / Timing Role: Level-shifting and noise-filtering interface between 12 V LIN physical layer and 3.3 V MCU; Schmitt inputs reject EMI-induced glitches. Use Value: 5.5 V tolerance allows direct connection to LIN line without external clamps; IOFF protects MCU during battery disconnect events. |
| Test Equipment Digital Pattern Generator | Medical Imaging Data Capture |
|
Use Scenario: Holding digital stimulus patterns for ASIC validation, where precise timing alignment across 8-bit data bus is required. IC Role / Device Role / Timing Role: Edge-aligned register stage preceding high-speed DAC or FPGA-based waveform engine; tsk(0) ≤1.5 ns ensures inter-output skew within timing budget. Use Value: Sub-2 ns propagation delay variation enables synchronous 8-bit pattern delivery at >100 MHz update rates without per-bit deskew calibration. |
Use Scenario: Capturing parallel ADC outputs (e.g., 8-channel ultrasound front-end) before serialization for FPGA processing. IC Role / Device Role / Timing Role: Synchronizing asynchronous analog-to-digital conversion results to system clock domain; CP driven by ADC's BUSY-to-DRDY strobe. Use Value: Guaranteed setup/hold times (tsu = 2.0 ns, th = +1.5 ns) allow reliable capture at 100 MSPS sample rates without additional timing margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal D-type flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC574APWR (TI) | Identical pinout and electrical specs; IOFF not explicitly characterized in datasheet; max fmax = 100 MHz at +125 °C (vs. 120 MHz for Nexperia). | Limited high-temp performance margin; no published IOFF leakage data - unsuitable for strict partial-power-down compliance requirements. | Select only if TI supply chain preference outweighs need for guaranteed IOFF behavior and extended frequency headroom. |
| 74LVCH16374ADGG (Nexperia) | 16-bit version in 48-pin TSSOP; dual 8-bit registers with separate OE; higher drive (±32 mA); wider VCC (1.2–5.5 V). | Over-spec'd for 8-bit use cases; larger footprint and cost; unnecessary complexity for simple register buffering. | Choose only when future 16-bit expansion or higher drive strength is confirmed in BOM planning. |
Compared with SN74LVC574APWR and 74LVCH16374ADGG, the 74LVC574APW,112 delivers optimal balance of guaranteed IOFF protection, 120 MHz operation at +125 °C, and minimal 20-pin TSSOP footprint - making it the preferred choice for space-constrained, thermally demanding industrial and automotive control nodes.
Availability
74LVC574APW,112 is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, test equipment digital pattern generation, and medical imaging data capture requiring stable component supply across extended temperature ranges.
Supply support for 74LVC574APW,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 delivering high-performance, reliable logic, discrete, and MOSFET solutions optimized for efficiency-critical applications in automotive, industrial, and consumer markets.
The 74LVC574A belongs to Nexperia's LVC (Low-Voltage CMOS) logic family, engineered for low-power, mixed-voltage interfacing with robust ESD immunity and extended temperature operation - specifically targeting industrial automation and automotive subsystems.
FAQ
Does the 74LVC574APW,112 support hot-swap insertion while powered?
Yes - its IOFF circuitry actively disables outputs when VCC drops to 0 V, preventing backflow current from live backplane traces into the unpowered IC. This feature is validated per JEDEC JESD78 and enables safe insertion into partially powered systems, provided OE is held HIGH during insertion to maintain high-Z state.
Can the 74LVC574APW,112 drive a 50 pF capacitive load at 100 MHz?
Yes - with tpd ≤9.0 ns and tsk(0) ≤1.5 ns at VCC = 3.3 V and +125 °C, it meets timing closure for 100 MHz operation into 50 pF loads. Output drive strength (±24 mA) ensures <10 ns rise/fall times under these conditions, as verified in Nexperia's Fig. 5 and Table 9 test data.
What is the maximum allowable input transition rate for reliable Schmitt-trigger operation?
The datasheet specifies Δt/ΔV limits: 0–20 ns/V at VCC = 1.65–2.7 V and 0–10 ns/V at VCC = 2.7–3.6 V. For VCC = 3.3 V, inputs must transition no slower than 33 ns across the full logic swing (0 V to 3.3 V) to guarantee clean switching - verified by hysteresis margin (>0.3 V) and noise rejection testing.
Is the TSSOP20 package (SOT360-1) compatible with standard reflow profiles?
Yes - the SOT360-1 package is qualified for IPC/JEDEC J-STD-020D moisture sensitivity level 1 (MSL-1), allowing unlimited floor life and compatibility with standard Pb-free reflow profiles (peak 260 °C, 60 s above 217 °C). Thermal resistance θJA = 100 K/W (typ.) is validated in Nexperia's thermal characterization report.
74LVC574APW,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- 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:
- 200 MHz
- Max Propagation Delay @ V, Max CL:
- 7ns @ 3.3V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.65V ~ 3.6V
- Current - Quiescent (Iq):
- 10 µA
- Input Capacitance:
- 5 pF
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-TSSOP
74LVC574APW,112 FAQ
1.How can I place an order for 74LVC574APW,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC574APW,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 74LVC574APW,112 reliable?
The price and inventory of 74LVC574APW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC574APW,112 is usually 5 days.
3.What payment methods are accepted for 74LVC574APW,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC574APW,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC574APW,112?
74LVC574APW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC574APW,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 74LVC574APW,112?
For technical support, including 74LVC574APW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC574APW,112 requirements.
6.How does Aetrix verify that 74LVC574APW,112 is sourced from the original manufacturer or authorized distributors?
All 74LVC574APW,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 74LVC574APW,112 meets industry standards.
7.What is the process for return or replacement of 74LVC574APW,112?
All 74LVC574APW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC574APW,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 74LVC574APW,112 part is unused and in its original packaging.
Return procedure for 74LVC574APW,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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