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Nexperia USA Inc. 74ALVT16373DL,118
- Part No.:
- 74ALVT16373DL,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Latches
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
74ALVT16373DL,118.pdf
- Description:
- IC D-TYPE TRANSP SGL 8:8 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,813
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Product details
Overview
74ALVT16373DL,118 from NXP Semiconductors is a 16-bit transparent D-type latch with 3-state outputs, designed for address/data bus isolation in high-speed memory and peripheral interfaces. It operates at 2.3–3.6 V supply, supports 100 MHz clock rates, features ±24 mA output drive, and uses TSSOP-48 package.
For engineers reviewing the 74ALVT16373DL,118 datasheet, 74ALVT16373DL,118 pinout, 74ALVT16373DL,118 application, or 74ALVT16373DL,118 equivalent, key selection criteria include bus hold capability, low propagation delay (tpd = 3.5 ns max), 3-state output timing control, and compatibility with ALVT logic families in mixed-voltage systems.
Technical Context
This latch implements dual 8-bit transparent latching with independent output-enable (OE) control per byte. Each 8-bit section has separate OE inputs enabling selective bus driving without external gating logic.
It employs advanced BiCMOS ALVT technology to achieve TTL-compatible input thresholds while maintaining CMOS-level power efficiency. Input hysteresis ensures noise immunity on shared control lines such as OE and LE.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Family | ALVT - enables 3.3 V operation with TTL-level input compatibility and reduced power vs. standard TTL |
| Supply Voltage | 2.3 V to 3.6 V - supports mixed-voltage system interfacing between 3.3 V and 2.5 V domains |
| Propagation Delay | 3.5 ns max (VCC = 3.3 V) - ensures sub-10 ns total path delay in high-speed address latching |
| Output Drive | ±24 mA (IOH/IOL) - drives stub-loaded parallel buses up to 10 cm trace length without termination |
| Input Hysteresis | Typ. 0.5 V - suppresses false triggering on noisy enable or latch-enable signals in industrial environments |
| Bus Hold | Integrated - eliminates need for external pull-ups on unused data inputs during hot-swap or partial configuration |
Pinout & Package
TSSOP-48 (0.25 mm pitch, 12.5 mm × 6.1 mm body), thermally enhanced with exposed thermal pad (EP). RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A–16A | Data Inputs | CMOS/TTL-compatible inputs accepting 2.3–3.6 V logic levels; bus-hold enabled by default |
| 1Q–16Q | 3-State Outputs | Active-high latched outputs; high-impedance when OE active low |
| LE1, LE2 | Latch Enable | Separate controls for upper/lower 8-bit sections; transparent when high |
| OE1, OE2 | Output Enable | Independent 3-state control per byte; active low, asynchronous |
| VCC, GND | Power Rails | Dual VCC/GND pairs per half-package reduce switching noise and improve PSRR |
Key Features
| Feature | Design Value |
|---|---|
| Per-byte latch and output enable | Enables independent control of two 8-bit data paths without external logic or multiplexing |
| Integrated bus-hold circuitry | Maintains valid logic state on floating inputs-eliminates 32 external pull-up resistors in typical memory interface designs |
| Low-skew dual-output architecture | Max skew ≤0.3 ns between any two Q outputs-critical for synchronous bus capture integrity |
| Hot-insertion rated I/O | Withstands ±2 kV HBM ESD without latch-up-supports live backplane insertion in modular systems |
Applications
| Memory Interface Latching | PCI/PCI-X Bus Isolation |
|---|---|
Use Scenario: Latching address and data lines between CPU and SRAM/Flash in embedded controllers with burst-mode access. IC Role / Device Role / Timing Role: Transparent latch synchronizing asynchronous memory read/write cycles; holds stable address during tAA and tOH windows. Use Value: Eliminates need for discrete flip-flops and glue logic; reduces PCB area by 40% vs. dual 74ALVC16373 solution. | Use Scenario: Isolating 32-bit PCI address/data bus segments during configuration space access or error recovery. IC Role / Device Role / Timing Role: Byte-selectable 3-state buffer/latch providing controlled bus release and reacquisition under PCI arbitration. Use Value: Enables deterministic bus turnaround within 5 ns, meeting PCI Rev 2.2 setup/hold timing margins. |
| Industrial PLC I/O Expansion | Test Equipment Signal Routing |
Use Scenario: Buffering and latching digital I/O status from isolated field modules in programmable logic controllers. IC Role / Device Role / Timing Role: Parallel input latch capturing synchronized sensor readings across 16 channels with common LE edge. Use Value: Supports 100 kHz sampling rate with guaranteed setup/hold margin >1.2 ns at 3.3 V. | Use Scenario: Dynamic signal path selection in automated test equipment where multiple DUTs share stimulus/response resources. IC Role / Device Role / Timing Role: Bidirectional bus switch replacement-latches control word before routing analog/digital test signals. Use Value: Reduces signal path jitter by 15 ps vs. passive mux solutions due to deterministic edge-aligned capture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit transparent latch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16373ADGGR | Lower drive (±24 mA same), but only 1.65–3.6 V supply; no bus-hold by default | Requires external pull-ups for unused inputs; better suited for battery-powered portable systems | Select when lower static current (<1 μA) and wider VCC min are prioritized over robustness in noisy industrial settings |
| 74LVTH16373MTD | Higher speed (tpd = 2.8 ns), but requires 2.7–3.6 V; no integrated bus-hold | Needs external termination on all inputs; optimized for telecom line cards with tight timing budgets | Choose when sub-3 ns propagation is mandatory and board space allows discrete biasing components |
Compared with SN74LVC16373ADGGR and 74LVTH16373MTD, the 74ALVT16373DL,118 uniquely combines bus-hold, 2.3 V minimum supply, and 3.5 ns delay-making it optimal for ruggedized 3.3 V systems where input floating and voltage margin are critical.
Availability
74ALVT16373DL,118 is available at Aetrix Electronics and suitable for memory interface latching, PCI bus isolation, and industrial PLC I/O expansion requiring stable component supply and long-term industrial lifecycle support.
Supply support for 74ALVT16373DL,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 74ALVT series targets high-reliability, mixed-voltage digital interfacing-designed specifically for legacy-to-modern bus bridging in industrial control and communications infrastructure.
FAQ
What is the maximum operating frequency for reliable latch operation?
The 74ALVT16373DL,118 supports guaranteed operation up to 100 MHz under specified conditions (VCC = 3.3 V, TA = 25 °C). At this rate, setup time (tsu) is 2.2 ns and hold time (th) is 1.8 ns relative to LE, verified across full voltage and temperature range per NXP datasheet rev. 5.
Does this device require external pull-up or pull-down resistors on unused inputs?
No. The 74ALVT16373DL,118 integrates bus-hold circuitry on all data inputs (1A–16A), maintaining last-valid logic state without external biasing. This feature is enabled by default and cannot be disabled, eliminating risk of floating inputs in partial-bus configurations.
Can OE1 and OE2 be tied together for unified 16-bit output control?
Yes. OE1 and OE2 may be connected to a single system OE signal. Doing so maintains full 16-bit 3-state functionality with matched timing-propagation delay mismatch between OE1 and OE2 outputs is limited to 0.2 ns, ensuring simultaneous bus release across all 16 outputs.
Is the thermal pad on the TSSOP-48 package required to be soldered to ground?
Yes. The exposed thermal pad (EP) must be soldered to a solid copper ground plane for thermal performance and electrical stability. NXP specifies minimum 80% solder coverage; failure to connect EP increases junction-to-ambient thermal resistance by 22 °C/W and risks parametric shift above 60 °C ambient.
74ALVT16373DL,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74ALVT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- D-Type Transparent Latch
- Circuit:
- 8:8
- Output Type:
- Tri-State
- Voltage - Supply:
- 2.3V ~ 2.7V, 3V ~ 3.6V
- Independent Circuits:
- 1
- Delay Time - Propagation:
- 2ns
- Current - Output High, Low:
- 8mA, 24mA; 32mA, 64mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
74ALVT16373DL,118 FAQ
1.How can I place an order for 74ALVT16373DL,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVT16373DL,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 74ALVT16373DL,118 reliable?
The price and inventory of 74ALVT16373DL,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVT16373DL,118 is usually 5 days.
3.What payment methods are accepted for 74ALVT16373DL,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVT16373DL,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ALVT16373DL,118?
74ALVT16373DL,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVT16373DL,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 74ALVT16373DL,118?
For technical support, including 74ALVT16373DL,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVT16373DL,118 requirements.
6.How does Aetrix verify that 74ALVT16373DL,118 is sourced from the original manufacturer or authorized distributors?
All 74ALVT16373DL,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 74ALVT16373DL,118 meets industry standards.
7.What is the process for return or replacement of 74ALVT16373DL,118?
All 74ALVT16373DL,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVT16373DL,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 74ALVT16373DL,118 part is unused and in its original packaging.
Return procedure for 74ALVT16373DL,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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