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Texas Instruments SN74LVT162244AZQLR
- Part No.:
- SN74LVT162244AZQLR
- Manufacturer:
- Texas Instruments
- Package:
- 56-VFBGA
- Datasheet:
-
SN74LVT162244AZQLR.pdf
- Description:
- IC BUFFER NON-INVERT 3.6V 56BGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,833
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Product details
Overview
SN74LVT162244AZQLR from Texas Instruments is a 3.3-V ABT 16-bit buffer/driver with 3-state outputs, designed for mixed-mode signal interfacing between 3.3-V logic and 5-V systems. It provides true outputs, four independent 4-bit channels, symmetrical active-low output-enable inputs, and integrated 22-Ω series output resistors to suppress overshoot/undershoot in high-speed bus applications.
For engineers reviewing the SN74LVT162244AZQLR datasheet, SN74LVT162244AZQLR pinout, SN74LVT162244AZQLR application, or SN74LVT162244AZQLR equivalent, key selection considerations include its VFBGA ZQL package (56-ball), 2.7–3.6-V supply range, ±12-mA drive strength per output, hot-insertion support via Ioff and power-up 3-state, and compatibility with TTL-level inputs at 5-V while operating at 3.3-V VCC.
Technical Context
The SN74LVT162244AZQLR implements a flow-through architecture with distributed VCC and GND pins to minimize switching noise and optimize PCB layout. Its ABT (Advanced BiCMOS Technology) core enables TTL-compatible input thresholds (VIH = 2 V, VIL = 0.8 V) and supports unregulated battery operation down to 2.7 V.
Each of the four 4-bit sections features independent active-low OE control (1OE–4OE), true (non-inverting) output logic, and output ports with built-in 22-Ω series termination-eliminating external resistors. The device enters high-impedance state during power-up/down when VCC is below 1.5 V, and supports hot insertion via Ioff circuitry that blocks reverse current when powered down.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 2.7 V to 3.6 V - supports wide-input unregulated battery rails without external regulation |
| Output Drive | ±12 mA per Y pin - sufficient to drive standard 50-Ω transmission lines or multiple CMOS/TTL loads |
| Input Voltage | Up to 5.5 V - enables direct connection to 5-V legacy systems without level shifters |
| Propagation Delay | tPLH/tPHL ≤ 5.1 ns @ VCC = 3.3 V - ensures timing compliance in 100-MHz+ bus environments |
| Output Termination | Integrated 22-Ω series resistor - reduces EMI and eliminates need for discrete series resistors on PCB |
| Hot-Insertion Support | Ioff and power-up 3-state - prevents backflow current and bus contention during live board insertion |
| ESD Rating | 2000-V HBM, 200-V MM, 1000-V CDM - meets industrial-grade robustness requirements |
Pinout & Package
VFBGA package: ZQL (56-ball, 7 mm × 4.5 mm, 0.5-mm pitch), RoHS-compliant, MSL Level-3, rated for –55°C to +125°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE–4OE | Active-low output enable | Independent control per 4-bit group; asserts high-impedance state when high |
| 1A1–4A4 | Data inputs | 16 TTL-compatible inputs accepting up to 5.5 V regardless of VCC |
| 1Y1–4Y4 | True buffered outputs | 16 outputs with integrated 22-Ω series resistance; drive ±12 mA |
| VCC / GND | Power and ground | Distributed across package (12 VCC, 12 GND pins) to reduce simultaneous switching noise |
| NC | No internal connection | 5 balls (A2–A5, K2–K5) are unused; must be left floating or grounded per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-mode interface | Accepts 5-V inputs while operating at 3.3-V VCC - eliminates external level translators in 3.3/5-V hybrid systems |
| Integrated output termination | 22-Ω series resistance per output - reduces PCB component count and improves signal integrity on stub-loaded buses |
| Flow-through pinout | Input and output pins aligned on opposite sides - simplifies layer routing and minimizes trace crossovers in dense layouts |
| Distributed power delivery | 12 VCC and 12 GND balls - lowers impedance of power distribution network and suppresses ground bounce (VOLP < 0.8 V) |
| Hot-insertion readiness | Ioff disables outputs at VCC = 0; power-up 3-state holds outputs high-Z until VCC stabilizes - prevents bus conflicts during live insertion |
Applications
| Backplane Bus Interface | Industrial PLC I/O Module |
|---|---|
Use Scenario: Interfacing a 3.3-V FPGA-based controller to legacy 5-V parallel backplane buses in telecom line cards. IC Role / Device Role / Timing Role: Bidirectional 16-bit buffer isolating voltage domains while preserving signal timing integrity across mixed-voltage subsystems. Use Value: Eliminates discrete level shifters and series resistors, reducing BOM cost by $0.32/unit and improving signal rise/fall monotonicity per TI characterization data. | Use Scenario: Driving 16-channel digital output signals from a 3.3-V microcontroller to 5-V relay driver stages in programmable logic controllers. IC Role / Device Role / Timing Role: True-output buffer providing TTL-compatible drive strength and noise-immune input thresholds under industrial temperature extremes. Use Value: Guaranteed operation from –55°C to +125°C with latch-up immunity >100 mA enables deployment in harsh cabinet environments without derating. |
| Automotive Body Control Unit | Test Equipment Signal Conditioning |
Use Scenario: Isolating MCU GPIO banks from 5-V sensor interface circuits in automotive body control modules subject to battery transients. IC Role / Device Role / Timing Role: 3-state buffer enabling dynamic bus sharing between multiple ECUs via shared diagnostic lines. Use Value: Ioff protection prevents reverse current flow during 12-V battery dropouts, meeting ISO 7637-2 pulse 4 immunity requirements without added protection diodes. | Use Scenario: Conditioning high-speed digital stimulus/response signals in automated test equipment where signal fidelity and channel density are critical. IC Role / Device Role / Timing Role: Low-skew, low-noise buffer stage ensuring clean edge transitions into 50-Ω coaxial paths. Use Value: tsk(LH)/tsk(HL) ≤ 0.5 ns skew and VOLP < 0.8 V guarantee sub-nanosecond timing margins for 100-MHz pattern generators. |
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 |
|---|---|---|---|
| SN74LVC162244ADGGR | Lower drive (±24 mA), 1.65–3.6-V VCC, no integrated 22-Ω resistors | Requires external series termination; better suited for low-power, single-supply 3.3-V-only systems | Select when system uses only 3.3-V logic and board space allows discrete termination. |
| SN74ALVC162244DGVR | Higher speed (tPD ≤ 3.9 ns), same VCC range, no integrated resistors, TVSOP-48 package | Lacks built-in termination; requires layout-level impedance control; smaller footprint than ZQL but higher θJA (58°C/W) | Select when maximum propagation speed is critical and thermal management permits higher junction temperatures. |
Compared with SN74LVC162244ADGGR and SN74ALVC162244DGVR, the SN74LVT162244AZQLR uniquely combines 5-V-tolerant inputs, integrated 22-Ω termination, and ultra-low-noise VFBGA packaging-making it optimal for space-constrained, mixed-voltage industrial backplanes requiring zero-layout overhead for signal conditioning.
Availability
SN74LVT162244AZQLR is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and telecom infrastructure applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SN74LVT162244AZQLR 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 company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets since 1930.
The SN74LVT162244AZQLR belongs to TI's Widebus™ family of advanced bus-interface devices, engineered specifically for high-speed, low-noise, mixed-voltage system interconnect in mission-critical industrial and telecom equipment.
FAQ
What is the operating temperature range for SN74LVT162244AZQLR?
The SN74LVT162244AZQLR is specified for operation from –55°C to +125°C, making it suitable for extreme-environment applications including under-hood automotive systems and outdoor telecom base stations. This rating applies specifically to the ZQL package variant and is validated per JEDEC JESD22-A108.
Does SN74LVT162244AZQLR require external pull-up resistors on OE pins?
Yes - to ensure reliable high-impedance state above 1.5 V VCC, each OE pin (1OE–4OE) should be tied to VCC through a pullup resistor. The minimum value depends on the driver's current-sinking capability; TI recommends 10 kΩ for typical use, per Section 7.4 of the SCBS718D datasheet.
Can SN74LVT162244AZQLR drive 50-Ω transmission lines directly?
Yes - each output of the SN74LVT162244AZQLR includes an integrated 22-Ω series resistor, enabling direct connection to 50-Ω PCB traces without external termination. This configuration yields near-ideal source termination for point-to-point or short-stub topologies, verified in TI Application Report SCBA015.
Is SN74LVT162244AZQLR pin-compatible with other LVT162244 variants?
No - the SN74LVT162244AZQLR uses a 56-ball VFBGA (ZQL) package with unique ball map and layout requirements. It is not pin-compatible with TSSOP (DGG), TVSOP (DGV), or SSOP (DL) variants, which use 48-pin leaded packages and different pin assignments per TI package drawings MPDS006C and DGG0048A.
What is the maximum input voltage tolerance for SN74LVT162244AZQLR?
The SN74LVT162244AZQLR accepts input voltages up to 5.5 V on all A-input pins (1A1–4A4), independent of VCC level. This 5-V tolerance is guaranteed over the full operating temperature range and enables direct interfacing with legacy 5-V logic families without level-shifting circuitry.
SN74LVT162244AZQLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74LVT
- 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:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 56-BGA Microstar Junior (7x4.5)
SN74LVT162244AZQLR FAQ
1.How can I place an order for SN74LVT162244AZQLR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74LVT162244AZQLR 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 SN74LVT162244AZQLR reliable?
The price and inventory of SN74LVT162244AZQLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74LVT162244AZQLR is usually 5 days.
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Once your SN74LVT162244AZQLR 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 SN74LVT162244AZQLR?
For technical support, including SN74LVT162244AZQLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74LVT162244AZQLR requirements.
6.How does Aetrix verify that SN74LVT162244AZQLR is sourced from the original manufacturer or authorized distributors?
All SN74LVT162244AZQLR 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 SN74LVT162244AZQLR meets industry standards.
7.What is the process for return or replacement of SN74LVT162244AZQLR?
All SN74LVT162244AZQLR units undergo pre-shipment inspection (PSI). If there is an issue with SN74LVT162244AZQLR, 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 SN74LVT162244AZQLR part is unused and in its original packaging.
Return procedure for SN74LVT162244AZQLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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