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Texas Instruments SN74ABT574ARGYR
- Part No.:
- SN74ABT574ARGYR
- Manufacturer:
- Texas Instruments
- Category:
- Flip Flops
- Package:
- 20-VFQFN Exposed Pad
- Datasheet:
-
SN74ABT574ARGYR.pdf
- Description:
- IC FF D-TYPE SNGL 8BIT 20VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,545
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Product details
Overview
SN74ABT574ARGYR from Texas Instruments is an 8-bit edge-triggered D-type flip-flop with 3-state outputs, designed for high-capacitance bus driving. It operates at 4.5–5.5 V, delivers ±32-mA/64-mA output drive, supports partial-power-down via Ioff, and features 150-MHz clock frequency with 1.0-ns data setup time (high-level) at VCC = 5 V.
For engineers reviewing the SN74ABT574ARGYR datasheet, SN74ABT574ARGYR pinout, SN74ABT574ARGYR application, or SN74ABT574ARGYR equivalent, this device is selected for high-speed bidirectional bus interfacing where ground bounce control (<1 V), latch-up immunity (>500 mA), and Ioff-enabled system power sequencing are critical design requirements.
Technical Context
The SN74ABT574ARGYR implements eight independent positive-edge-triggered D flip-flops with a shared clock (CLK) and buffered output-enable (OE) control. OE places all Q outputs in high-impedance without affecting internal state retention or clock/data sampling behavior.
Its ABT logic family delivers enhanced drive strength (−32 mA IOH, 64 mA IOL) and low ground bounce (VOLP <1 V), enabling direct connection to heavily loaded PCB traces or backplanes without external termination or pull-ups. Ioff circuitry actively disables outputs during power-down to prevent reverse current flow when VCC = 0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | ABT - Advanced BiCMOS Technology delivering TTL-compatible input thresholds with CMOS-level power efficiency and high-current drive. |
| Supply Voltage | 4.5 V to 5.5 V - Ensures compatibility with standard 5-V digital systems while maintaining noise margin and timing stability. |
| Output Drive | −32 mA IOH / 64 mA IOL - Sufficient to drive 50-pF loads at >150 MHz without signal degradation or excessive trace termination. |
| Propagation Delay | tPLH/tPHL ≤ 6.8 ns (CLK→Q) - Enables reliable operation in high-speed synchronous bus architectures with tight timing budgets. |
| Ioff Current | ±100 µA max at VCC = 0 - Prevents damaging backflow current during hot-insertion or staggered power sequencing in multi-rail systems. |
| ESD Rating | 2000-V HBM, 200-V MM - Meets industrial-grade robustness requirements for handling and board assembly without additional protection circuitry. |
| Operating Temperature | −40°C to +85°C - Qualified for commercial and industrial environments including embedded controllers and communications infrastructure. |
Pinout & Package
SN74ABT574ARGYR is housed in a 20-pin QFN package (RGY) with wettable flanks, measuring 4.0 mm × 4.0 mm × 0.8 mm (body), thermal resistance θJA = 37°C/W, and lead-free (RoHS-compliant) finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1D–8D | Data Inputs | Asynchronous parallel inputs latched on CLK rising edge; TTL-compatible thresholds (VIH = 2 V, VIL = 0.8 V). |
| 1Q–8Q | Tri-State Outputs | Edge-triggered registered outputs; high-impedance when OE = high, driven low/high when OE = low. |
| CLK | Clock Input | Positive-edge-sensitive control; minimum pulse width 3.3 ns ensures reliable capture of fast data streams. |
| OE | Output Enable | Active-low enable; does not affect internal flip-flop operation-data can be latched while outputs remain disabled. |
| VCC | Power Supply | 5-V nominal supply; must be decoupled locally (0.1 µF ceramic + 4.7 µF bulk) due to high transient current demands. |
| GND | Ground Reference | Common return path for all signals and power; requires low-inductance connection to minimize VOLP-induced noise. |
Key Features
| Feature | Design Value |
|---|---|
| High-Drive 3-State Outputs | −32 mA IOH / 64 mA IOL enables direct interface to unterminated 50-Ω transmission lines or dense backplane stubs without external drivers. |
| Ioff Partial-Power-Down Support | Blocks reverse current flow when VCC = 0, allowing safe insertion/removal in live backplanes or mixed-voltage subsystems. |
| Low Ground Bounce (VOLP) | <1 V at VCC = 5 V, TA = 25°C - Reduces simultaneous switching noise that could corrupt adjacent signal integrity or cause false clocking. |
| Latch-Up Immunity | Exceeds 500 mA per JEDEC JESD17 - Eliminates need for external current-limiting or reset circuitry in harsh ESD or surge environments. |
| Input Clamp Protection | −18 mA IIK rating allows safe overvoltage tolerance up to −1.2 V at inputs, supporting robust level-shifting or fault-tolerant interface designs. |
Applications
| Industrial PLC I/O Modules | Telecom Line Card Buffers |
|---|---|
|
Use Scenario: Isolating microcontroller GPIO from high-noise 24-V field wiring in programmable logic controller racks. IC Role / Device Role / Timing Role: Registered buffer providing galvanically isolated data staging between MCU and optocoupler-driven output stages. Use Value: High drive strength drives long PCB traces to relay drivers; Ioff prevents backfeed during module hot-swap; 150-MHz clock supports fast scan-cycle updates. |
Use Scenario: Interfacing FPGA-based packet processors to legacy TDM bus structures in carrier-grade line cards. IC Role / Device Role / Timing Role: Edge-aligned data latch synchronizing parallel 8-bit TDM channel data to system clock domain. Use Value: Low propagation delay (≤6.8 ns) meets strict setup/hold timing; 3-state outputs allow bidirectional bus sharing across multiple ASICs. |
| Automotive Body Control Units | Test Equipment Digital Pattern Generators |
|
Use Scenario: Managing multiplexed sensor inputs (door locks, window switches, mirror controls) in centralized body electronics modules. IC Role / Device Role / Timing Role: Input register capturing switch states synchronized to MCU polling cycle, with OE-controlled isolation during sleep mode. Use Value: −40°C to +85°C rating ensures reliability under hood conditions; Ioff eliminates leakage paths during battery-save deep-sleep states. |
Use Scenario: Generating precise, repeatable 8-bit stimulus waveforms for IC functional validation in ATE systems. IC Role / Device Role / Timing Role: High-speed pattern register feeding parallel test vectors to DUT pins with deterministic edge alignment. Use Value: 150-MHz maximum clock frequency supports >100-MHz vector rates; low VOLP minimizes jitter accumulation across multi-stage test fixtures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit registered buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC574APWR | Lower drive (−24 mA/24 mA), 1.65–3.6 V supply, 3.3-V logic only | Better suited for low-voltage portable or battery-powered systems; not 5-V tolerant | Select when operating in 3.3-V domains with lower power budgets and no 5-V interface requirement. |
| 74ACT574SCX | Higher speed (tPLH ≤ 4.5 ns), same 4.5–5.5 V range, but no Ioff support | Lacks partial-power-down capability; unsuitable for hot-swap or multi-rail sequencing | Choose only in fixed-power, single-supply 5-V systems where maximum speed outweighs power sequencing needs. |
Compared with SN74LVC574APWR and 74ACT574SCX, SN74ABT574ARGYR uniquely balances 5-V bus drive strength, Ioff-enabled power management, and industrial temperature range-making it the preferred choice for ruggedized, multi-rail, high-noise embedded interfaces.
Availability
SN74ABT574ARGYR is available at Aetrix Electronics and suitable for industrial PLC I/O modules, telecom line card buffers, automotive body control units, and ATE pattern generators requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74ABT574ARGYR 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with decades of heritage in high-reliability interface and timing products.
SN74ABT574ARGYR belongs to TI's ABT logic family, engineered for high-speed, high-drive 5-V digital interfacing in industrial, telecom, and automotive systems where signal integrity and power sequencing robustness are critical.
FAQ
What is the maximum clock frequency supported by SN74ABT574ARGYR?
SN74ABT574ARGYR supports a maximum clock frequency of 150 MHz under recommended operating conditions (VCC = 5 V, TA = 25°C). This value is guaranteed across the full industrial temperature range (−40°C to +85°C), with typical performance reaching 200 MHz at 25°C per switching characteristics data. The device maintains timing integrity due to its optimized ABT architecture and low propagation delay (tPLH/tPHL ≤ 6.8 ns).
Does SN74ABT574ARGYR support partial-power-down operation?
Yes, SN74ABT574ARGYR fully supports partial-power-down via its Ioff circuitry. When VCC = 0 V and any input or output voltage remains ≤4.5 V, Ioff limits current to ±100 µA maximum, preventing damaging reverse current flow. This feature enables safe hot-swap operation and staggered power sequencing in multi-rail systems without external isolation components.
What package type is used for SN74ABT574ARGYR?
SN74ABT574ARGYR uses a 20-pin QFN package designated RGY, measuring 4.0 mm × 4.0 mm × 0.8 mm with wettable flanks. It features a thermal resistance θJA of 37°C/W, RoHS-compliant lead-free finish, and is optimized for automated optical inspection (AOI) and reflow soldering in high-density PCB layouts.
How does the output-enable (OE) pin function on SN74ABT574ARGYR?
The OE pin on SN74ABT574ARGYR is an active-low control that places all eight Q outputs in high-impedance without affecting internal flip-flop operation. While OE is high, outputs float; while OE is low, outputs drive logic levels based on the last-latched D-input values. OE has no effect on clock or data sampling-new data can be latched even while outputs remain disabled.
Is SN74ABT574ARGYR compatible with 3.3-V logic inputs?
No, SN74ABT574ARGYR is not 3.3-V logic input compatible. Its input thresholds are TTL-based (VIH = 2.0 V min, VIL = 0.8 V max) and require a 4.5–5.5 V supply. Driving it directly from 3.3-V logic may result in marginal or non-functional operation. Level translation (e.g., TXB0108 or discrete resistor divider) is required for reliable interfacing with 3.3-V sources.
SN74ABT574ARGYR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ABT
- Package/Case:
- 20-VFQFN Exposed Pad
- 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:
- 200 MHz
- Max Propagation Delay @ V, Max CL:
- 6.6ns @ 5V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 32mA, 64mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Iq):
- 250 µA
- Input Capacitance:
- 3.5 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-VQFN (3.5x4.5)
SN74ABT574ARGYR FAQ
1.How can I place an order for SN74ABT574ARGYR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ABT574ARGYR 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 SN74ABT574ARGYR reliable?
The price and inventory of SN74ABT574ARGYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ABT574ARGYR is usually 5 days.
3.What payment methods are accepted for SN74ABT574ARGYR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ABT574ARGYR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74ABT574ARGYR?
SN74ABT574ARGYR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ABT574ARGYR 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 SN74ABT574ARGYR?
For technical support, including SN74ABT574ARGYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ABT574ARGYR requirements.
6.How does Aetrix verify that SN74ABT574ARGYR is sourced from the original manufacturer or authorized distributors?
All SN74ABT574ARGYR 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 SN74ABT574ARGYR meets industry standards.
7.What is the process for return or replacement of SN74ABT574ARGYR?
All SN74ABT574ARGYR units undergo pre-shipment inspection (PSI). If there is an issue with SN74ABT574ARGYR, 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 SN74ABT574ARGYR part is unused and in its original packaging.
Return procedure for SN74ABT574ARGYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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