My Inquiry
My Account
Texas Instruments SN74LVC16244AZRDR
- Part No.:
- SN74LVC16244AZRDR
- Manufacturer:
- Texas Instruments
- Package:
- 54-TFBGA
- Datasheet:
-
SN74LVC16244AZRDR.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V 54BGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,246
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74LVC16244AZRDR from Texas Instruments is a 16-bit noninverting 3-state buffer/driver with four independent 4-bit sections, operating from 1.65 V to 3.6 V VCC, supporting 5.5-V-tolerant inputs and delivering ≤4.1 ns propagation delay at 3.3 V - used in memory address buffering, bus isolation, and level translation between 3.3-V and 5-V logic domains in servers and telecom infrastructure.
For engineers reviewing the SN74LVC16244AZRDR datasheet, SN74LVC16244AZRDR pinout, SN74LVC16244AZRDR application, or SN74LVC16244AZRDR equivalent, key selection considerations include Ioff support for live insertion, ±24-mA output drive per channel at 3.3 V, 3-state output control per 4-bit group, and compatibility with TSSOP-48 (DGG) packaging for high-density PCB layouts.
Technical Context
This device implements four independent 4-bit noninverting buffers, each with dedicated active-low output-enable (OE) inputs (1OE–4OE), enabling selective bus isolation without affecting other channels. Its CMOS design ensures symmetrical drive strength and supports mixed-voltage operation via 5.5-V-tolerant inputs across the full 1.65–3.6-V VCC range.
The SN74LVC16244AZRDR features Ioff protection that disables current flow when VCC = 0 V, preventing back-drive damage during hot-swap or partial-power-down scenarios. It also meets JESD 22 ESD standards (2000-V HBM, 1000-V CDM) and exceeds 250-mA latch-up immunity per JESD17.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.65 V to 3.6 V - enables direct integration into 1.8-V, 2.5-V, and 3.3-V systems without level shifters |
| Input Voltage Tolerance | Up to 5.5 V - allows interfacing with legacy 5-V logic while powered from 3.3-V rails |
| tpd (Max) | 4.1 ns at VCC = 3.3 V - supports high-speed data routing in memory and peripheral buses |
| IOL/IOH | ±24 mA at VCC = 3.3 V - drives moderate capacitive loads (e.g., 30-pF traces or multiple CMOS inputs) |
| Ioff | ±10 μA at VCC = 0 V - permits safe live insertion and back-drive protection in modular systems |
| Operating Temperature | –40°C to +125°C - qualified for industrial and extended-temperature embedded applications |
| ESD Rating | 2000-V HBM, 1000-V CDM - meets standard reliability requirements for automated assembly and field use |
Pinout & Package
TSSOP-48 (DGG) package, 12.50 mm × 6.10 mm body size, 0.5-mm lead pitch, surface-mount compatible with standard reflow profiles (MSL Level-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE–4OE | Active-low output enable | Individually controls 3-state output of each 4-bit section; low = enabled, high = high-Z |
| 1A1–4A4 | Input | 16 buffered input signals, 5.5-V tolerant regardless of VCC level |
| 1Y1–4Y4 | Output | 16 true (noninverting) outputs with 3-state capability and ±24-mA drive at 3.3 V |
| VCC (Pins 7,18,31,42) | Power supply | Four distributed VCC pins reduce power delivery impedance and improve noise immunity |
| GND (Pins 4,10,15,21,28,34,39,45) | Ground | Eight GND pins provide low-inductance return paths and minimize ground bounce (VOLP < 0.8 V) |
Key Features
| Feature | Design Value |
|---|---|
| Wide VCC range (1.65–3.6 V) | Enables single-bom deployment across 1.8-V, 2.5-V, and 3.3-V system domains without redesign |
| 5.5-V-tolerant inputs | Eliminates external level translators when interfacing with 5-V microcontrollers or legacy peripherals |
| Ioff partial-power-down support | Prevents current backflow and signal corruption during hot-plug events or rail sequencing faults |
| Low ground bounce (VOLP < 0.8 V) | Maintains signal integrity in high-speed switching environments with minimal supply rail disturbance |
| Symmetrical output drive | Ensures matched rise/fall times and reduces timing skew in parallel bus applications |
Applications
| Memory Address Buffering | Bus Isolation in Telecom Switches |
|---|---|
|
Use Scenario: Driving address lines from a 3.3-V CPU to multiple 3.3-V or 5-V memory modules with strict setup/hold timing. IC Role / Device Role / Timing Role: Noninverting buffer with 4.1-ns tpd and 5.5-V-tolerant inputs, providing clean, low-skew address propagation. Use Value: Enables reliable memory access across voltage domains without adding propagation delay or requiring external translators. |
Use Scenario: Isolating control buses between line cards and backplane in modular network switches during hot-swap maintenance. IC Role / Device Role / Timing Role: 3-state buffer with Ioff and independent OE pins per 4-bit group, allowing selective bus disconnection. Use Value: Prevents bus contention and back-drive damage during live card replacement while maintaining signal integrity. |
| Server I/O Expansion | Industrial PLC Backplane Interface |
|
Use Scenario: Expanding GPIO or control signal count from a 3.3-V SoC to drive LEDs, relays, or sensors on a server motherboard. IC Role / Device Role / Timing Role: High-drive (±24 mA) buffer with 16 outputs, supporting direct LED driving and fan control. Use Value: Reduces BOM count by eliminating discrete drivers while sustaining robust noise margins in electrically noisy server chassis. |
Use Scenario: Interfacing a 3.3-V FPGA I/O bank to legacy 5-V industrial I/O modules over a DIN-rail-mounted backplane. IC Role / Device Role / Timing Role: Level-translating buffer with 5.5-V-tolerant inputs and 3.3-V-compatible outputs, ensuring interoperability. Use Value: Bridges voltage gaps without external components, simplifying certification and reducing failure points in safety-critical PLCs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit 3-state buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC16244ADGGR | Same silicon die, identical electrical specs, TSSOP-48 (DGG) package with NIPDAU finish and MSL-1 rating | No functional difference; differs only in part marking ("LVC16244A") and tape-and-reel packaging (2000 pcs/reel vs. ZRDR's 2000 pcs/reel) | Select SN74LVC16244ADGGR for standard TI production release; SN74LVC16244AZRDR is functionally identical with alternate marking. |
| SN74LVC16244ADGVR | Same functionality and specs, but in TVSOP-48 (DGV) package: smaller footprint (9.70 mm × 4.40 mm) and thinner profile | Better suited for space-constrained designs; thermal resistance higher (RθJA = 78.4°C/W vs. 64.3°C/W for DGG), limiting max power density | Choose SN74LVC16244ADGVR when board area is critical and thermal headroom permits; verify layout cooling for sustained 24-mA loads. |
Compared with SN74LVC16244ADGGR, SN74LVC16244AZRDR offers identical performance in the same TSSOP-48 package but with alternate TI internal marking; versus SN74LVC16244ADGVR, it trades compactness for lower thermal resistance and higher current-handling margin in dense layouts.
Availability
SN74LVC16244AZRDR is available at Aetrix Electronics and suitable for servers, telecom switches, and industrial PLCs requiring stable component supply, long-term lifecycle support, and RoHS-compliant TSSOP packaging.
Supply support for SN74LVC16244AZRDR 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 experience in high-reliability interface ICs.
The SN74LVC16244AZRDR belongs to TI's Widebus™ family of advanced logic devices, designed specifically to enhance density and timing performance in 3-state memory, clock, and bus-oriented systems.
FAQ
What is the maximum operating temperature for SN74LVC16244AZRDR?
The SN74LVC16244AZRDR is rated for operation from –40°C to +125°C ambient temperature, meeting industrial and extended-temperature requirements. This specification is validated per JEDEC JESD78 and confirmed in the device's Recommended Operating Conditions table (Section 7.3 of SCAS699C).
Does SN74LVC16244AZRDR support live insertion or hot-swap applications?
Yes, SN74LVC16244AZRDR supports live insertion via its Ioff feature, which disables input/output current paths when VCC = 0 V. This prevents back-drive damage and ensures safe operation during partial-power-down or hot-plug events in modular systems.
Can SN74LVC16244AZRDR interface between 5-V and 3.3-V logic without external level shifters?
Yes, SN74LVC16244AZRDR accepts input voltages up to 5.5 V regardless of VCC (1.65–3.6 V), enabling direct connection to 5-V outputs while driving 3.3-V loads - making it suitable for down-translation in mixed-voltage systems without added components.
What is the output drive strength of SN74LVC16244AZRDR at 3.3 V?
At VCC = 3.3 V, SN74LVC16244AZRDR delivers ±24 mA per output (IOH/IOL) under specified conditions, sufficient to drive typical CMOS loads, LEDs, or multiple gate inputs while maintaining VOL ≤ 0.55 V and VOH ≥ 2.2 V.
Which package type does SN74LVC16244AZRDR use, and is it RoHS compliant?
SN74LVC16244AZRDR uses the TSSOP-48 (DGG) package, 12.50 mm × 6.10 mm body size, and is RoHS compliant with NIPDAU lead finish and MSL Level-1 rating - verified in TI's official Packaging Information and Orderable Addendum documentation.
SN74LVC16244AZRDR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVC
- Package/Case:
- 54-TFBGA
- 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:
- 24mA, 24mA
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 54-BGA Microstar Junior (8x5.5)
SN74LVC16244AZRDR FAQ
1.How can I place an order for SN74LVC16244AZRDR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVC16244AZRDR 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 SN74LVC16244AZRDR reliable?
The price and inventory of SN74LVC16244AZRDR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVC16244AZRDR is usually 5 days.
3.What payment methods are accepted for SN74LVC16244AZRDR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74LVC16244AZRDR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74LVC16244AZRDR?
SN74LVC16244AZRDR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74LVC16244AZRDR 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 SN74LVC16244AZRDR?
For technical support, including SN74LVC16244AZRDR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVC16244AZRDR requirements.
6.How does Aetrix verify that SN74LVC16244AZRDR is sourced from the original manufacturer or authorized distributors?
All SN74LVC16244AZRDR 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 SN74LVC16244AZRDR meets industry standards.
7.What is the process for return or replacement of SN74LVC16244AZRDR?
All SN74LVC16244AZRDR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVC16244AZRDR, 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 SN74LVC16244AZRDR part is unused and in its original packaging.
Return procedure for SN74LVC16244AZRDR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74LVC16244AZRDR Tags
-
SN74LVC1G17DBVR
Texas Instruments
-
SN74LVC1G07DCKR
Texas Instruments
-
SN74LVC1G17DCKR
Texas Instruments
-
SN74LVC1G07DBVR
Texas Instruments
-
SN74LVC1G125DCKR
Texas Instruments
-
SN74AHCT1G126DBVR
Texas Instruments
-
SN74LVC1G125DBVR
Texas Instruments
-
SN74AHCT1G125DBVR
Texas Instruments
-
SN74LVC2G17DBVR
Texas Instruments
-
SN74LVC2G07DCKR
Texas Instruments
-
SN74LVC1G34DCKR
Texas Instruments
-
SN74LVC2G17DCKR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
