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onsemi 74ALVC16244DT
- Part No.:
- 74ALVC16244DT
- Manufacturer:
- onsemi
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74ALVC16244DT.pdf
- Description:
- IC BUFF NON-INVERT 3.6V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:8,151
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Product details
Overview
74ALVC16244DT from onsemi is a low-voltage, non-inverting 16-bit buffer IC with four independent 4-bit nibble groups, 3-state outputs, and 3.6 V-tolerant I/O-designed for high-speed, low-power operation in 1.65–3.6 V systems such as memory interface buffers and bus isolation in industrial control backplanes.
For engineers reviewing the 74ALVC16244DT datasheet, pinout, applications, or equivalent options, key selection criteria include voltage range compatibility (1.65–3.6 V), 3.6 V-tolerant I/O for mixed-voltage domain interfacing, propagation delay ≤3.0 ns at 3.0–3.6 V, ±24 mA drive strength at 3.0 V, and TSSOP-48 package suitability for space-constrained PCB layouts.
Technical Context
The 74ALVC16244DT implements four independent 4-bit buffer sections, each controlled by its own active-low Output Enable (OEn) input-enabling selective 4-bit bus gating without affecting other nibbles. Its logic architecture supports live insertion and withdrawal via IOFF protection, ensuring high-impedance outputs when VCC = 0 V.
It operates across three supply voltage tiers: 1.65–1.95 V (6.0 ns max tPLH/tPHL), 2.3–2.7 V (3.7 ns max), and 3.0–3.6 V (3.0 ns max), with static drive capability scaling per VCC-±4 mA at 1.65 V, ±12 mA at 2.3 V, and ±24 mA at 3.0 V-while maintaining near-zero quiescent ICC (40 µA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.65 V to 3.6 V - enables interoperability across 1.8 V, 2.5 V, and 3.3 V logic domains without level shifters. |
| Propagation Delay (tPLH/tPHL) | 3.0 ns max at VCC = 3.0–3.6 V - supports >300 MHz data rates in high-speed parallel bus applications. |
| Output Drive Strength | ±24 mA at VCC = 3.0 V - sufficient to drive 50 Ω transmission lines or fan-out to ≥10 LVTTL loads. |
| I/O Voltage Tolerance | 3.6 V tolerant inputs/outputs - allows safe interfacing with 3.3 V or 5 V peripherals in mixed-supply systems. |
| Quiescent Supply Current | 40 µA - reduces system-level standby power in battery-backed or energy-sensitive embedded controllers. |
| IOFF Leakage | 10 µA at VCC = 0 V - prevents back-driving and signal contention during hot-swap or power sequencing events. |
| ESD Rating | HBM >2000 V, MM >200 V - meets industrial-grade robustness requirements for factory automation interfaces. |
Pinout & Package
TSSOP-48 package (Case 1201-01), 12.5 mm × 6.1 mm footprint, 0.5 mm pitch, 1.1 mm max height - optimized for automated SMT assembly and thermal performance in dense PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OE1–OE4 | Active-low output enable (nibble-select) | Independent control of four 4-bit output groups; tying all OEn pins enables full 16-bit operation. |
| D0–D15 | Data inputs | Non-inverting inputs mapped 1:1 to corresponding outputs; all must be terminated to avoid floating states. |
| O0–O15 | 3-state buffered outputs | Drive-strength-scaled outputs with 3.6 V tolerance; enter high-Z when respective OEn = HIGH. |
| VCC (Pins 42, 41, 30, 18) | Power supply | Four dedicated VCC pins reduce IR drop and improve noise immunity across wide bus widths. |
| GND (Pins 45, 39, 34, 31, 27) | Ground reference | Five GND pins provide low-inductance return paths, critical for signal integrity in high-speed digital buses. |
Key Features
| Feature | Design Value |
|---|---|
| Nibble-controlled 3-state buffering | Four independent 4-bit sections allow granular bus partitioning-e.g., isolate memory address vs. data lanes without disabling entire bus. |
| 3.6 V-tolerant I/O | Eliminates external level translators when interfacing with legacy 3.3 V or 5 V peripherals in modern low-voltage systems. |
| Live-insertion support | IOFF specification guarantees high-impedance outputs at VCC = 0 V, enabling safe hot-plug operation in modular backplane designs. |
| Ultra-low static current | 40 µA ICC in all logic states minimizes power budget impact in always-on subsystems like watchdog or status monitoring circuits. |
| High ESD/latch-up immunity | 2000 V HBM ESD rating and >±250 mA latch-up resistance ensure reliability in harsh industrial environments with frequent handling or EMI exposure. |
Applications
| Memory Interface Buffering | Industrial Backplane Isolation |
|---|---|
|
Use Scenario: Driving SRAM or Flash memory address/data buses in programmable logic controllers (PLCs) operating at 3.3 V with 1.8 V FPGA core logic. IC Role / Device Role / Timing Role: Non-inverting 16-bit buffer providing voltage-domain bridging and fan-out amplification between mismatched logic families. Use Value: 3.6 V-tolerant I/O eliminates level-shifter components; 3.0 ns propagation delay ensures setup/hold timing compliance at 100+ MHz bus clocks. |
Use Scenario: Isolating CPU-to-peripheral communication lanes on modular industrial backplanes where modules may be inserted/removed under power. IC Role / Device Role / Timing Role: Nibble-gated 3-state buffer enabling dynamic bus segment enable/disable without disrupting adjacent lanes. Use Value: IOFF protection prevents back-driving during hot-swap; independent OE pins allow staggered activation of peripheral slots. |
| Low-Power Sensor Hub Interface | Test Equipment Signal Conditioning |
|
Use Scenario: Aggregating and buffering digital sensor outputs (e.g., temperature, pressure ADCs) in battery-powered edge nodes before transmission to MCU. IC Role / Device Role / Timing Role: Low-quiescent-current buffer preserving signal integrity while minimizing standby power draw. Use Value: 40 µA ICC extends battery life; ±24 mA drive supports long traces to remote sensors without signal degradation. |
Use Scenario: Level-shifting and driving multiple DUT (device-under-test) inputs simultaneously in automated test equipment with mixed-voltage fixtures. IC Role / Device Role / Timing Role: High-speed, high-drive buffer ensuring precise timing alignment across parallel test vectors. Use Value: 3.0 ns max delay enables sub-ns timing resolution; 3.6 V tolerance accommodates legacy 5 V DUTs alongside modern 1.8 V ASICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit non-inverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ALVC16244DGGR | Same functional spec, identical pinout, but TI-manufactured TSSOP-48 with slightly higher max tPLH (3.2 ns @ 3.3 V) and lower IOFF leakage (5 µA). | Valid for TI-based BOMs; requires validation of TI's IOFF behavior under zero-VCC hot-swap conditions per application. | Select when sourcing from TI distribution channels or requiring TI-specific qualification documentation. |
| 74LVC16244APAG | Same 16-bit function but in TSSOP-48 with narrower VCC range (1.65–3.3 V), no 3.6 V I/O tolerance, and slower max delay (3.9 ns @ 3.3 V). | Suitable only for pure 3.3 V systems; cannot replace 74ALVC16244DT in mixed-voltage or 3.6 V-tolerant designs. | Choose only if 3.6 V tolerance is unnecessary and cost is prioritized over voltage flexibility. |
Compared with SN74ALVC16244DGGR and 74LVC16244APAG, the 74ALVC16244DT uniquely combines 3.6 V I/O tolerance, 3.0 ns speed at 3.3 V, and 40 µA ICC-making it optimal for next-gen industrial systems requiring both voltage agility and ultra-low standby power.
Availability
74ALVC16244DT is available at Aetrix Electronics and suitable for memory interface buffering, industrial backplane isolation, low-power sensor hub interfacing, test equipment signal conditioning, and modular hot-swap subsystems requiring stable component supply across extended product lifecycles.
Supply support for 74ALVC16244DT 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient power management, analog, logic, and sensor solutions for automotive, industrial, cloud, and IoT applications.
The 74ALVC16244DT belongs to onsemi's advanced low-voltage CMOS logic family, engineered specifically for high-speed, low-power bus buffering in mixed-voltage embedded systems where reliability, timing precision, and voltage domain interoperability are critical.
FAQ
What is the maximum supply voltage for the 74ALVC16244DT?
The 74ALVC16244DT supports a DC supply voltage (VCC) range of 1.65 V to 3.6 V, with absolute maximum rating up to 4.6 V. Operation beyond 3.6 V is not recommended, as the device is characterized and guaranteed only up to 3.6 V per its Recommended Operating Conditions table. Exceeding this may compromise timing, drive strength, or reliability.
Does the 74ALVC16244DT support hot-swap functionality?
Yes, the 74ALVC16244DT supports live insertion and withdrawal via its IOFF specification: when VCC = 0 V, the outputs remain in high-impedance state with leakage ≤10 µA-even if 3.6 V signals are present on inputs or outputs. This prevents back-driving and bus contention during hot-swap events in modular backplane systems.
What is the propagation delay of the 74ALVC16244DT at 2.5 V supply?
At VCC = 2.5 V (within the 2.3–2.7 V range), the 74ALVC16244DT has a maximum propagation delay (tPLH/tPHL) of 3.7 ns. This value is specified under AC test conditions: CL = 30 pF, RL = 500 Ω, and input transition rate ≤10 ns/V-ensuring predictable timing in 2.5 V logic domains like certain FPGA I/O banks.
How many ground pins does the 74ALVC16244DT have in its TSSOP-48 package?
The 74ALVC16244DT in TSSOP-48 has five dedicated GND pins: Pins 45, 39, 34, 31, and 27. This multi-ground configuration lowers impedance and improves noise immunity-critical for maintaining signal integrity across all 16 buffered channels in high-speed parallel bus applications.
Can the 74ALVC16244DT drive 50 Ω transmission lines directly?
Yes-the 74ALVC16244DT delivers ±24 mA output drive at VCC = 3.0 V, sufficient to drive a 50 Ω load with <1 V undershoot/overshoot under typical conditions. For clean 50 Ω line driving, use series termination at the source and ensure proper PCB layout (controlled impedance, short traces, solid return plane) as validated in onsemi's application notes for ALVC logic.
74ALVC16244DT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74ALVC
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- Buffer, Non-Inverting
- Number of Elements:
- 4
- Number of Bits per Element:
- 4
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 24mA, 24mA
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TSSOP
74ALVC16244DT FAQ
1.How can I place an order for 74ALVC16244DT through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ALVC16244DT 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 74ALVC16244DT reliable?
The price and inventory of 74ALVC16244DT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ALVC16244DT is usually 5 days.
3.What payment methods are accepted for 74ALVC16244DT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ALVC16244DT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ALVC16244DT?
74ALVC16244DT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ALVC16244DT 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 74ALVC16244DT?
For technical support, including 74ALVC16244DT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ALVC16244DT requirements.
6.How does Aetrix verify that 74ALVC16244DT is sourced from the original manufacturer or authorized distributors?
All 74ALVC16244DT 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 74ALVC16244DT meets industry standards.
7.What is the process for return or replacement of 74ALVC16244DT?
All 74ALVC16244DT units undergo pre-shipment inspection (PSI). If there is an issue with 74ALVC16244DT, 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 74ALVC16244DT part is unused and in its original packaging.
Return procedure for 74ALVC16244DT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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