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Nexperia USA Inc. 74ALVT162823DL,518
- Part No.:
- 74ALVT162823DL,518
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Flip Flops
- Package:
- 56-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
74ALVT162823DL,518.pdf
- Description:
- IC FF D-TYPE DUAL 9BIT 56SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,595
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Product details
Overview
74ALVT162823DL,518 from Nexperia is an 18-bit positive-edge-triggered D-type flip-flop with integrated 30 Ω series output termination resistors, dual 9-bit independent control (nCP/nCE/nMR/nOE), bus hold inputs, and 3-state outputs. It operates at 2.5 V or 3.3 V supply, delivers ±12 mA drive strength, and supports high-speed bus interfacing in industrial backplanes and memory subsystems.
For engineers reviewing the 74ALVT162823DL,518 datasheet, 74ALVT162823DL,518 pinout, 74ALVT162823DL,518 application, or 74ALVT162823DL,518 equivalent, key selection criteria include propagation delay (≤4.4 ns @ 3.3 V), bus hold current (±130 μA), power-up 3-state behavior, and TSSOP56 package compatibility with high-density PCB layouts.
Technical Context
This device implements two independent 9-bit D-flip-flop banks, each with dedicated clock (nCP), clock enable (nCE), master reset (nMR), and output enable (nOE) inputs. The bus hold circuitry maintains valid logic states on unused data inputs without external pull-ups, eliminating floating node risks during hot-swap or partial configuration.
Each output integrates a 30 Ω series resistor to match typical PCB trace impedance, suppressing reflections in high-speed parallel buses. The function table confirms simultaneous support for synchronous load (on rising nCP edge), asynchronous reset (nMR active-L), and tri-state control (nOE active-L) - all operating across −40 °C to +85 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | 18-bit positive-edge-triggered D-type flip-flop with dual 9-bit control domains |
| Supply Voltage | 2.3–2.7 V or 3.0–3.6 V - supports both 2.5 V and 3.3 V system rails |
| Propagation Delay | ≤4.4 ns (tPLH/tPHL @ VCC = 3.3 V) - enables >200 MHz bus operation |
| Output Drive | ±12 mA - sufficient to drive terminated 50 Ω transmission lines directly |
| Input Termination | Bus hold circuitry (IBHL/IBHH ±130 μA @ 3 V) - eliminates need for external pull-up/down resistors |
| Output Termination | Integrated 30 Ω series resistor per output - matches common PCB trace Z₀ and removes external termination components |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial ambient environments |
Pinout & Package
TSSOP56 plastic thin shrink small outline package (SOT364-1), 56-pin, body width 6.1 mm, 0.5 mm pitch, lead-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1D0–1D8, 2D0–2D8 | Data inputs (two groups of nine) | Accept parallel data; bus hold ensures stable state when unconnected |
| 1Q0–1Q8, 2Q0–2Q8 | Data outputs (two groups of nine) | 3-state outputs with integrated 30 Ω series resistance for impedance matching |
| 1CP, 2CP | Clock inputs (rising-edge sensitive) | Trigger synchronous latching; separate clocks allow independent timing domains |
| 1CE, 2CE | Clock enable (active LOW) | Gates clock propagation - prevents unintended updates during nCP transitions |
| 1MR, 2MR | Master reset (active LOW) | Asynchronously forces all associated Q outputs LOW; minimum pulse width 2.0 ns |
| 1OE, 2OE | Output enable (active LOW) | Controls 3-state mode independently per 9-bit bank; no effect on internal flip-flop state |
| VCC (pins 7,22,35,50) | Power supply | Four dedicated supply pins reduce IR drop and improve noise immunity |
| GND (pins 4,11,18,25,32,39,46,53) | Ground reference | Eight ground pins provide low-inductance return paths for high-speed switching |
Key Features
| Feature | Design Value |
|---|---|
| Dual 9-bit register banks | Independent clock, reset, enable, and output control per bank - enables flexible partitioning in multi-bus systems |
| Integrated 30 Ω output termination | Eliminates need for 18 discrete series resistors - reduces BOM count and layout area |
| Bus hold inputs | Maintains valid logic level on floating D-inputs - prevents metastability and EMI from undefined states |
| Power-up 3-state and reset | Outputs enter high-impedance and flip-flops initialize LOW at power-on - prevents bus contention during boot |
| ESD robustness | HBM >2000 V, CDM >1000 V - withstands handling and board-level electrostatic events |
Applications
| Memory Interface Bus | Industrial Backplane |
|---|---|
Use Scenario: Latching address/data between microprocessor and SRAM or Flash memory in embedded controllers. IC Role / Device Role / Timing Role: Synchronizes wide parallel bus transfers using separate clock and enable per 9-bit segment to manage skew and timing margins. Use Value: Integrated 30 Ω termination and bus hold ensure signal integrity and eliminate floating inputs - reducing debug time and improving reliability in unpopulated memory slots. | Use Scenario: Interfacing multiple plug-in modules (I/O, motion control, analog) to a central backplane in factory automation systems. IC Role / Device Role / Timing Role: Acts as a hot-swap-tolerant bus interface buffer with independent OE/MR per channel to isolate faulty modules without resetting the entire bus. Use Value: Power-up 3-state and live insertion support prevent bus glitches during module replacement - critical for uptime in continuous-operation environments. |
| High-Speed Test Equipment | Telecom Line Card |
Use Scenario: Capturing parallel digital waveforms from ASICs or FPGAs in automated test equipment (ATE) pattern generators. IC Role / Device Role / Timing Role: Provides precise, low-skew sampling of multi-bit signals using synchronized rising-edge capture across 18 bits. Use Value: ≤4.4 ns propagation delay and <1.3 ns setup/hold margin at 3.3 V enable accurate capture at >200 MHz data rates - meeting ATE timing validation requirements. | Use Scenario: Buffering control and status signals between DSPs and FPGA-based packet processing engines in telecom line cards. IC Role / Device Role / Timing Role: Isolates voltage domains and provides clean, slew-controlled outputs via integrated 30 Ω resistors to minimize crosstalk on dense 10+ layer boards. Use Value: Dual 9-bit control allows independent management of control vs. status buses - simplifying timing closure and reducing inter-bank skew in multi-FPGA designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 18-bit bus-interface flip-flop applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALVTH162823DGGR | TI part with identical 18-bit dual-bank architecture, same 30 Ω termination, but rated only to +70 °C (vs. +85 °C) | Limited to commercial-temperature applications; lacks industrial-grade thermal qualification | Select if cost sensitivity outweighs extended temperature requirement and TI ecosystem alignment is preferred |
| 74LVC16374APAG | No integrated termination resistors; requires external 33 Ω series resistors per output; bus hold not implemented | Higher BOM count and layout complexity; less robust against floating inputs | Choose only if legacy LVC voltage tolerance (1.65–3.6 V) is required and termination can be added externally |
Compared with SN74ALVTH162823DGGR, the 74ALVT162823DL,518 offers full industrial temperature range support; versus 74LVC16374APAG, it delivers lower system-level component count and superior noise immunity via built-in termination and bus hold - directly reducing design risk in high-reliability applications.
Availability
74ALVT162823DL,518 is available at Aetrix Electronics and suitable for industrial backplanes, memory subsystems, and high-speed test equipment requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for 74ALVT162823DL,518 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, analog, and MOSFET solutions, with leadership in automotive and industrial applications.
The 74ALVT family targets high-speed, low-voltage bus interface applications where signal integrity, termination integration, and robust hot-swap behavior are essential - especially in industrial computing and communications infrastructure.
FAQ
What is the purpose of the bus hold feature on the 74ALVT162823DL,518?
The bus hold circuit actively maintains the last valid logic state on unused data inputs (1D0–1D8, 2D0–2D8) by sourcing or sinking up to ±130 μA. This eliminates floating nodes that could cause EMI, increased power consumption, or metastability - removing the need for external pull-up or pull-down resistors in partially populated systems.
Can the 74ALVT162823DL,518 operate at 2.5 V and 3.3 V simultaneously?
No - the device uses a single VCC supply rail (pins 7, 22, 35, 50) and must be operated at either 2.3–2.7 V or 3.0–3.6 V. It is not designed for mixed-supply operation. Input voltage tolerance extends to 5.5 V regardless of VCC, enabling safe interfacing with higher-voltage logic families.
How does the integrated 30 Ω output resistor affect signal integrity?
Each output includes a 30 Ω series resistor that, combined with typical PCB trace impedance (~50 Ω), forms a source-termination network. This damps signal reflections on unterminated or lightly loaded buses, reducing overshoot, undershoot, and ringing - particularly beneficial in point-to-point or short stub topologies common in backplanes and memory interfaces.
Is the 74ALVT162823DL,518 pin-compatible with other ALVT or LVT devices?
It is pin-compatible with the 74ALVT162823DGG variant (same SOT364-1/TSSOP56 package and pinout), but not with SSOP56 or other footprint variants. Cross-compatibility with non-Nexperia ALVT parts (e.g., TI's SN74ALVTH162823) is mechanical and functional, though thermal and ESD specs differ - verify datasheet alignment before substitution.
74ALVT162823DL,518 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74ALVT
- Package/Case:
- 56-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Function:
- Master Reset
- Type:
- D-Type
- Output Type:
- Tri-State, Non-Inverted
- Number of Elements:
- 2
- Number of Bits per Element:
- 9
- Clock Frequency:
- -
- Max Propagation Delay @ V, Max CL:
- 4.4ns @ 3.3V, 50pF
- Trigger Type:
- Positive Edge
- Current - Output High, Low:
- 8mA, 12mA; 12mA, 12mA
- Voltage - Supply:
- 2.3V ~ 2.7V, 3V ~ 3.6V
- Current - Quiescent (Iq):
- 70 µA
- Input Capacitance:
- 3 pF
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-SSOP
74ALVT162823DL,518 FAQ
1.How can I place an order for 74ALVT162823DL,518 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVT162823DL,518 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 74ALVT162823DL,518 reliable?
The price and inventory of 74ALVT162823DL,518 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVT162823DL,518 is usually 5 days.
3.What payment methods are accepted for 74ALVT162823DL,518?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVT162823DL,518 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ALVT162823DL,518?
74ALVT162823DL,518 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVT162823DL,518 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 74ALVT162823DL,518?
For technical support, including 74ALVT162823DL,518 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVT162823DL,518 requirements.
6.How does Aetrix verify that 74ALVT162823DL,518 is sourced from the original manufacturer or authorized distributors?
All 74ALVT162823DL,518 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 74ALVT162823DL,518 meets industry standards.
7.What is the process for return or replacement of 74ALVT162823DL,518?
All 74ALVT162823DL,518 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVT162823DL,518, 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 74ALVT162823DL,518 part is unused and in its original packaging.
Return procedure for 74ALVT162823DL,518:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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