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Nexperia USA Inc. 74ALVC162834ADGG,1
- Part No.:
- 74ALVC162834ADGG,1
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Universal Bus Functions
- Package:
- 56-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74ALVC162834ADGG,1.pdf
- Description:
- IC UNIV BUS DVR 18BIT 56TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,033
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Product details
Overview
74ALVC162834ADGG,1 from Nexperia is an 18-bit registered bus driver with active-low latch enable (LE), active-low output enable (OE), edge-triggered clock (CP), integrated 30 Ω series termination resistors on all outputs, and operation across 1.2 V to 3.6 V supply. It provides transparent or registered data flow for high-speed parallel bus interfacing in memory expansion, FPGA I/O bridging, and backplane driver applications.
For engineers reviewing the 74ALVC162834ADGG,1 datasheet, 74ALVC162834ADGG,1 pinout, 74ALVC162834ADGG,1 application, or 74ALVC162834ADGG,1 equivalent, this device supports precise timing control via CP/LE/OE logic, delivers ±12 mA drive at 3.0 V, maintains signal integrity with on-die 30 Ω termination, and enables robust 3-state bus sharing in multi-drop systems.
Technical Context
The 74ALVC162834ADGG,1 implements a dual-control register architecture: when LE is LOW, A-to-Y path is transparent; when LE is HIGH, data is latched on the LOW-to-HIGH transition of CP. OE operates independently to place outputs in high-impedance state without affecting latch state.
All 18 outputs integrate matched 30 Ω series resistors-active in both HIGH and LOW output stages-to damp reflections on 50 Ω transmission lines up to 85 °C. Input diodes clamp to VCC and GND, supporting hot-swap compatibility and tolerance to overdriven signals.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.2 V to 3.6 V - Enables direct interface with 1.2 V, 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters. |
| Output Drive | ±12 mA at 3.0 V - Sufficient to drive 50 Ω transmission lines under worst-case load and temperature (85 °C). |
| Propagation Delay | 2.9 ns typical (VCC = 3.3 V, CL = 50 pF) - Supports >200 MHz system clock rates in registered mode. |
| Termination Resistors | 30 Ω series per output - Reduces PCB trace stub reflections and eliminates need for external series resistors. |
| Input Voltage Thresholds | VIH = 2.0 V min (VCC ≥ 2.7 V); VIL = 0.8 V max - Ensures reliable TTL-level compatibility (2.7–3.6 V range). |
| 3-State Enable/Disable | ten = 2.4 ns typ; tdis = 3.0 ns typ (VCC = 3.3 V) - Minimizes bus contention window during output state transitions. |
| Power Dissipation Cap | Ptot = 600 mW (TSSOP56, ≤55 °C) - Supports sustained operation in dense PCB layouts with thermal derating above 55 °C. |
Pinout & Package
TSSOP56 (SOT364-1) package: 56-pin plastic thin shrink small outline, 6.1 mm body width, 0.5 mm pitch, exposed thermal pad not present, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1–A18 | Data inputs | 18 parallel input signals routed to internal register/latch; pins distributed across both sides for flow-through routing. |
| Y1–Y18 | Data outputs | 18 registered/transparent outputs each with integrated 30 Ω series resistor; pin-aligned opposite corresponding A pins. |
| OE (Pin 27) | Active-low output enable | Asserting LOW enables outputs; asserting HIGH forces all Yn into high-impedance state regardless of register content. |
| LE (Pin 28) | Active-low latch enable | LOW enables transparent mode; HIGH enables edge-triggered latching on CP rising edge. |
| CP (Pin 30) | Clock input | Rising-edge triggered; controls data capture into internal flip-flops only when LE is HIGH. |
| VCC (Pins 7, 22, 35, 50) | Supply voltage | Four dedicated power pins minimize IR drop and supply noise; decoupling required near each VCC pin. |
| GND (Pins 4, 11, 18, 25, 29, 32, 39, 46, 53, 56) | Ground reference | Ten ground pins reduce ground bounce and improve signal integrity in high-speed switching. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 30 Ω series termination | Eliminates 18 external resistors, reduces BOM count, ensures impedance matching across process/voltage/temperature. |
| MULTIBYTE flow-through pinout | A1/Y1 through A18/Y18 aligned on opposing sides simplifies PCB layout and minimizes trace crossovers in parallel buses. |
| Low-inductance power distribution | 4× VCC and 10× GND pins suppress simultaneous switching noise (SSN) and maintain stable core voltage during fast transitions. |
| Input diode clamping | Clamps inputs to VCC and GND, enabling safe hot insertion and tolerance to overshoot/undershoot beyond supply rails. |
| Wide voltage operation (1.2–3.6 V) | Supports mixed-voltage system integration (e.g., 1.8 V FPGA core driving 3.3 V peripheral bus) without external translators. |
Applications
| Memory Expansion Interface | FPGA I/O Bridging |
|---|---|
|
Use Scenario: Driving address/data buses between microcontroller and external SRAM or Flash memory. IC Role / Device Role / Timing Role: Registered driver synchronizing burst transfers with system clock; OE controlled by memory controller chip select. Use Value: 30 Ω termination prevents signal ringing on long PCB traces, while 2.9 ns propagation delay enables >333 MB/s throughput at 3.3 V. |
Use Scenario: Interfacing low-voltage FPGA I/O banks (1.2 V/1.8 V) to legacy 3.3 V peripheral buses. IC Role / Device Role / Timing Role: Level-shifting registered buffer with independent OE/LE/CP control for setup/hold compliance. Use Value: 1.2 V–3.6 V supply range allows direct connection to FPGA VCCIO; integrated termination avoids external resistor arrays. |
| Backplane Bus Driver | Industrial Control Data Hub |
|
Use Scenario: Driving parallel control signals across 10+ cm backplane traces in modular PLC chassis. IC Role / Device Role / Timing Role: High-drive 3-state driver enabling shared bus arbitration among multiple slots. Use Value: ±12 mA drive and 30 Ω series termination ensure clean edges on unterminated 50 Ω backplane traces up to 85 °C ambient. |
Use Scenario: Consolidating sensor data streams (e.g., ADC outputs, encoder counts) into a central MCU data bus. IC Role / Device Role / Timing Role: Registered latch capturing asynchronous sensor updates on synchronized clock edge. Use Value: LE/CP-controlled registration eliminates metastability risk; 10 GND pins suppress noise coupling in electrically noisy factory environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 18-bit registered driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALVCH162834DGGR | No integrated termination resistors; requires external 33 Ω series resistors per output. | Suitable where board layout allows discrete termination or where adjustable impedance is needed. | Select if external resistor tuning is required or if lower quiescent current (<1 μA ICC) is prioritized over BOM reduction. |
| 74LVC162244APAG | Non-registered, non-inverting 16-bit buffer; no clock or latch inputs; 24 mA drive at 3.3 V. | Applicable only in transparent-only bus buffering, not for synchronous data capture. | Choose only for simple enable-controlled fanout without timing registration or clock synchronization. |
Compared with SN74ALVCH162834DGGR, the 74ALVC162834ADGG,1 reduces component count and layout area via on-die 30 Ω resistors; versus 74LVC162244APAG, it adds critical clocked registration and inverted LE functionality essential for synchronous bus handshaking.
Availability
74ALVC162834ADGG,1 is available at Aetrix Electronics and suitable for memory expansion interfaces, FPGA I/O bridging, backplane bus drivers, and industrial control data hubs requiring stable component supply across extended temperature ranges.
Supply support for 74ALVC162834ADGG,1 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, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.
The 74ALVC logic family targets low-voltage, high-speed digital interfacing with enhanced noise immunity and power efficiency-designed specifically for modern mixed-signal systems demanding compact, robust, and scalable bus solutions.
FAQ
What is the function of the inverted latch enable (LE) input?
The LE input is active LOW: when LE is LOW, the device operates in transparent mode-input data passes directly to outputs. When LE is HIGH, the device enters registered mode and captures A-input data on the rising edge of CP. This inversion simplifies control logic in systems where latch activation aligns with deasserted control signals.
How does the integrated 30 Ω termination improve signal integrity?
Each output integrates a precisely trimmed 30 Ω series resistor that, combined with typical PCB trace impedance (~50 Ω), forms a source-matched termination. This suppresses reflections at the driver end, reducing overshoot, undershoot, and ringing-especially critical for >100 MHz signals on traces longer than 5 cm.
Can OE be left floating during power-up?
No. To guarantee high-impedance outputs during power-up/power-down, OE must be tied to VCC via a pull-up resistor. The minimum value depends on the driver's sink capability; Nexperia recommends ≥10 kΩ for standard use, ensuring OE remains HIGH until system firmware asserts it LOW.
Is the 74ALVC162834ADGG,1 suitable for automotive applications?
No. This device is not AEC-Q100 qualified and lacks automotive-grade screening, temperature validation (-40 °C to +125 °C), or enhanced ESD/EMI robustness. It is rated for industrial temperature range (-40 °C to +85 °C) only and intended for commercial/industrial equipment-not safety-critical automotive subsystems.
74ALVC162834ADGG,1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74ALVC
- Package/Case:
- 56-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- Universal Bus Driver
- Number of Circuits:
- 18-Bit
- Current - Output High, Low:
- 12mA, 12mA
- Voltage - Supply:
- 2.3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-TSSOP
74ALVC162834ADGG,1 FAQ
1.How can I place an order for 74ALVC162834ADGG,1 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVC162834ADGG,1 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 74ALVC162834ADGG,1 reliable?
The price and inventory of 74ALVC162834ADGG,1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVC162834ADGG,1 is usually 5 days.
3.What payment methods are accepted for 74ALVC162834ADGG,1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVC162834ADGG,1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ALVC162834ADGG,1?
74ALVC162834ADGG,1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVC162834ADGG,1 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 74ALVC162834ADGG,1?
For technical support, including 74ALVC162834ADGG,1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVC162834ADGG,1 requirements.
6.How does Aetrix verify that 74ALVC162834ADGG,1 is sourced from the original manufacturer or authorized distributors?
All 74ALVC162834ADGG,1 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 74ALVC162834ADGG,1 meets industry standards.
7.What is the process for return or replacement of 74ALVC162834ADGG,1?
All 74ALVC162834ADGG,1 units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVC162834ADGG,1, 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 74ALVC162834ADGG,1 part is unused and in its original packaging.
Return procedure for 74ALVC162834ADGG,1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74ALVC162834ADGG,1 Tags
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SN74VMEH22501ADGGR
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SN74VMEH22501ADGVR
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SN74VMEH22501DGGR
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