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Texas Instruments SN74AVC16244GQLR
- Part No.:
- SN74AVC16244GQLR
- Manufacturer:
- Texas Instruments
- Package:
- 56-VFBGA
- Datasheet:
-
SN74AVC16244GQLR.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V 56BGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,298
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Product details
Overview
SN74AVC16244GQLR from Texas Instruments is a 16-bit noninverting buffer/driver with 3-state outputs, designed for 1.65-V to 3.6-V operation and featuring Dynamic Output Control (DOC™) for noise reduction without speed degradation. It supports mixed-voltage-mode data communications via overvoltage-tolerant I/Os, delivers ±24 mA dynamic drive at 2.5 V, and enables partial-power-down mode via Ioff. Used in memory address buffering, clock distribution, and bus transceivers in industrial and embedded systems.
For engineers reviewing the SN74AVC16244GQLR datasheet, SN74AVC16244GQLR pinout, SN74AVC16244GQLR application, or SN74AVC16244GQLR equivalent, key selection criteria include its 1.65–3.6-V supply range, DOC-enabled low-noise switching, 1.7 ns typical propagation delay at 3.3 V, Ioff support for hot-insertion, and VFBGA-48 (GQL) package compatibility with high-density PCB layouts.
Technical Context
The SN74AVC16244GQLR implements a DOC™ circuit that dynamically modulates output impedance: lowering it during signal transitions for strong drive strength (equivalent to ±24 mA standard outputs), then raising it post-transition to suppress ringing and crosstalk. This preserves timing integrity while reducing EMI.
It features four independent 4-bit sections, each with symmetrical active-low OE inputs and true (noninverting) outputs. The Ioff circuit ensures outputs remain high-impedance during power-down, blocking current backflow when VCC = 0 V - critical for system-level power sequencing and hot-swap compliance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - enables direct interfacing between 1.8-V, 2.5-V, and 3.3-V logic domains without level shifters. |
| Propagation Delay (tpd) | 1.7 ns max at VCC = 3.3 V - supports high-speed address/data buffering in DDR memory subsystems and FPGA I/O expansion. |
| Dynamic Drive Strength | ±24 mA at VCC = 2.5 V - matches standard-output buffers while maintaining low noise via DOC™ control. |
| Ioff Current | ±10 µA max at VCC = 0 V - prevents damaging back-current flow during partial power-down or hot-plug events. |
| Input Voltage Range | –0.5 V to 4.6 V - overvoltage tolerance allows safe operation with 5-V signals on I/O pins even when VCC ≤ 3.6 V. |
| Output Enable Time (ten) | 3.5 ns max at VCC = 3.3 V - ensures rapid bus arbitration and fast peripheral enable/disable cycles. |
| Power Dissipation (Cpd) | 33 pF at VCC = 3.3 V - quantifies dynamic loading on driving source; critical for fanout and clock tree design. |
Pinout & Package
VFBGA-48 (GQL) package: 3.5 mm × 4.5 mm, 0.5-mm pitch, bottom-side ball array, JEDEC MO-153 compliant. Thermal resistance θJA = 42°C/W enables reliable operation in compact, thermally constrained modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low output-enable inputs | Independently control four 4-bit sections; tie to VCC via pullup for power-up high-Z safety. |
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Data inputs | True (noninverting) inputs per section; accept 1.2–3.6-V logic levels with overvoltage tolerance. |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | 3-state buffered outputs | Drive loads up to ±24 mA; DOC™ ensures clean edges without overshoot/ringing. |
| VCC (pins A3, A4, C3, C4, D3, D4, H3, H4, J3, J4) | Supply voltage | Decoupling required at each VCC pair; supports simultaneous multi-rail operation across sections. |
| GND (pins B3, B4, D1, D2, F3, F4, G3, G4, J1, J2) | Ground reference | Multiple GND balls minimize ground bounce and improve signal integrity in high-speed switching. |
| NC (pins A2, A5, A6, K2, K3, K4, K5, K6) | No internal connection | Must be left unconnected; no routing or stitching vias required on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic Output Control (DOC™) | Reduces simultaneous switching noise by 30–50% vs. fixed-drive buffers while maintaining <2 ns propagation delay. |
| Overvoltage-Tolerant I/Os | Withstand –0.5 V to 4.6 V regardless of VCC - eliminates external clamping diodes in mixed-voltage interconnects. |
| Ioff Partial-Power-Down Support | Enables safe insertion/removal in live backplanes and modular systems without disrupting upstream logic. |
| Widebus™ Architecture | Optimized pinout and layout for minimal trace length and crosstalk in high-density memory and bus applications. |
| Low Input/Output Capacitance | Ci = 6 pF, Co = 6.5 pF at 3.3 V - reduces loading on drivers and improves signal rise/fall times. |
Applications
| Memory Address Buffering | High-Speed Clock Distribution |
|---|---|
Use Scenario: Driving address lines to multiple SRAM or Flash devices on a shared bus in an industrial controller. IC Role / Device Role / Timing Role: 16-bit noninverting buffer with independent OE control per 4-bit group, ensuring glitch-free address latching during bank switching. Use Value: DOC™ minimizes address bus noise that could corrupt read/write cycles; Ioff prevents leakage when memory banks are powered down. | Use Scenario: Distributing a 100-MHz system clock to FPGA configuration I/O banks and peripheral controllers. IC Role / Device Role / Timing Role: Low-skew, low-jitter buffer with matched propagation delays across all 16 outputs. Use Value: 1.7 ns tpd and <0.2 ns inter-output skew maintain setup/hold margins; overvoltage tolerance accommodates 3.3-V clock sources feeding 1.8-V FPGA banks. |
| Hot-Swappable Module Interface | Multi-Rail Bus Transceiver |
Use Scenario: Enabling/disabling communication paths between a mainboard and field-replaceable compute modules in telecom equipment. IC Role / Device Role / Timing Role: 3-state buffer isolating I²C, SPI, or parallel control buses during module insertion or removal. Use Value: Ioff blocks backfeed current when module VCC is off; DOC™ prevents EMI bursts during hot-plug transitions. | Use Scenario: Interfacing a 2.5-V microcontroller with 1.8-V sensors and 3.3-V displays on a single PCB. IC Role / Device Role / Timing Role: Level-translating buffer supporting bidirectional data flow across voltage domains without external translators. Use Value: Overvoltage-tolerant I/Os accept 3.3-V inputs at 1.8-V VCC; true outputs preserve logic polarity across all rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit buffer/driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16244ADGGR | No DOC™ circuit; fixed-output drive; higher static current (ICC = 10 µA typ vs. 3.5 µA); VCC min = 1.65 V. | Lacks dynamic noise suppression - unsuitable for noise-sensitive clock or high-frequency address buses. | Choose for cost-sensitive, lower-speed designs where EMI is not critical and DOC™ is unnecessary. |
| SN74AVCH16244DGVR | Same DOC™ and Ioff features; TVSOP-48 package (5.0 mm × 6.2 mm); θJA = 58°C/W; identical electrical specs. | Larger footprint and higher thermal resistance - less suitable for ultra-compact or thermally constrained modules. | Choose when board layout requires surface-mount SOP-style assembly or rework accessibility outweighs size constraints. |
Compared with SN74LVC16244ADGGR and SN74AVCH16244DGVR, the SN74AVC16244GQLR uniquely combines DOC™-enabled noise control, VFBGA-48 miniaturization, and 42°C/W thermal performance - making it optimal for space-constrained, high-speed, mixed-voltage embedded systems requiring robust EMI management.
Availability
SN74AVC16244GQLR is available at Aetrix Electronics and suitable for memory subsystems, FPGA I/O expansion, hot-swappable modules, and multi-rail industrial controllers requiring stable component supply and long-term lifecycle assurance.
Supply support for SN74AVC16244GQLR 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 innovation in high-speed interface and power-efficient logic families.
The SN74AVC16244GQLR belongs to TI's AVC (Advanced Very-Low-Voltage CMOS) logic family, engineered for high-speed, low-noise, mixed-voltage digital interfacing in space-constrained industrial, computing, and communications equipment.
FAQ
What is the minimum operating voltage for the SN74AVC16244GQLR?
The SN74AVC16244GQLR operates down to 1.4 V per recommended conditions, though data retention is guaranteed at 1.2 V. For full functionality including specified drive strength and timing, 1.65 V is the minimum recommended VCC. Below 1.65 V, VOL and VOH margins degrade, and DOC™ behavior may deviate from characterization.
Does the SN74AVC16244GQLR require external pull-up resistors on OE pins?
Yes - to ensure high-impedance outputs during power-up or power-down, each OE pin (1OE–4OE) must be tied to VCC through a pullup resistor. TI recommends ≥10 kΩ for most applications; the exact value depends on the current-sinking capability of the controlling driver and required turn-on speed.
Can the SN74AVC16244GQLR safely interface a 3.3-V microcontroller with a 1.8-V FPGA?
Yes - the SN74AVC16244GQLR's overvoltage-tolerant inputs accept 3.3-V signals at VCC = 1.8 V, and its outputs swing rail-to-rail within the 1.8-V domain. No level-shifting components are needed, provided VCC is set to the target output voltage (1.8 V) and input thresholds (VIH/VIL) are met per the datasheet.
How does the DOC™ circuit in the SN74AVC16244GQLR reduce noise without slowing performance?
The DOC™ circuit in the SN74AVC16244GQLR first lowers output impedance during signal transition for strong edge drive (matching ±24 mA standard outputs), then rapidly increases impedance after crossing the logic threshold to damp ringing. This dual-phase control cuts simultaneous switching noise by up to 50% while maintaining 1.7 ns propagation delay at 3.3 V - preserving timing budgets.
Is the SN74AVC16244GQLR RoHS-compliant and lead-free?
Yes - the SN74AVC16244GQLR is RoHS-compliant and uses NiPdAu (nickel-palladium-gold) ball finish on its VFBGA package. It meets JEDEC MSL Level-1 (unlimited floor life at ≤30°C/60% RH) and is rated for peak reflow at 260°C, fully compatible with standard lead-free soldering profiles.
SN74AVC16244GQLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74AVC
- Package/Case:
- 56-VFBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- 12mA, 12mA
- Voltage - Supply:
- 1.4V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-BGA Microstar Junior (7x4.5)
SN74AVC16244GQLR FAQ
1.How can I place an order for SN74AVC16244GQLR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74AVC16244GQLR 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 SN74AVC16244GQLR reliable?
The price and inventory of SN74AVC16244GQLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74AVC16244GQLR is usually 5 days.
3.What payment methods are accepted for SN74AVC16244GQLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74AVC16244GQLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74AVC16244GQLR?
SN74AVC16244GQLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74AVC16244GQLR 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 SN74AVC16244GQLR?
For technical support, including SN74AVC16244GQLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74AVC16244GQLR requirements.
6.How does Aetrix verify that SN74AVC16244GQLR is sourced from the original manufacturer or authorized distributors?
All SN74AVC16244GQLR 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 SN74AVC16244GQLR meets industry standards.
7.What is the process for return or replacement of SN74AVC16244GQLR?
All SN74AVC16244GQLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74AVC16244GQLR, 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 SN74AVC16244GQLR part is unused and in its original packaging.
Return procedure for SN74AVC16244GQLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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