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Texas Instruments SN74ABT162244DGVR
- Part No.:
- SN74ABT162244DGVR
- Manufacturer:
- Texas Instruments
- Package:
- 48-TFSOP (0.173", 4.40mm Width)
- Datasheet:
-
SN74ABT162244DGVR.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 48TVSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,650
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Product details
Overview
SN74ABT162244DGVR from Texas Instruments is a 16-bit noninverting buffer/line driver with four independent 4-bit sections, active-low 3-state outputs, integrated 25-Ω series output resistors, ±12 mA drive capability, and operation over −40°C to 85°C. It serves as a high-density memory address or bus driver in industrial control backplanes and telecom data-path interfaces.
For engineers reviewing the SN74ABT162244DGVR datasheet, SN74ABT162244DGVR pinout, SN74ABT162244DGVR application, or SN74ABT162244DGVR equivalent, this page delivers verified electrical specs, TVSOP-48 package layout, hot-insertion support via Ioff and power-up 3-state, and direct alternatives for bus buffering upgrades in legacy 5-V systems.
Technical Context
The SN74ABT162244DGVR implements four identical 4-bit noninverting buffers, each with symmetrical active-low OE control and output-enable logic that forces high-impedance during power ramp-up/down. Its distributed VCC/GND pinning and flow-through architecture reduce simultaneous switching noise and simplify PCB routing.
Each output integrates an on-die 25-Ω series resistor to suppress overshoot/undershoot without external termination. The device meets JESD-17 latch-up immunity (>500 mA), supports hot insertion via Ioff (±100 µA at VCC = 0), and maintains high-impedance state across full operating temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage (VCC) | 4.5 V to 5.5 V - ensures compatibility with standard 5-V TTL and CMOS logic rails. |
| Output drive (IOL/IOH) | ±12 mA - supports driving 50-pF loads with <4.9 ns propagation delay (tPHL/tPLH) at 5 V. |
| Input thresholds (VIH/VIL) | 2.0 V / 0.8 V - TTL-compatible input levels enable direct interfacing with legacy 5-V microcontrollers and FPGAs. |
| Output impedance | 25 Ω series - eliminates need for external series termination resistors on PCB traces. |
| Power-up 3-state | Guaranteed high-Z during VCC ramp - prevents bus contention at system startup or brownout. |
| Ioff current | ±100 µA at VCC = 0 - blocks damaging backflow current when powered down in live backplane environments. |
| Operating temperature | −40°C to +85°C - qualified for industrial-grade embedded systems and communications equipment. |
Pinout & Package
SN74ABT162244DGVR uses a 48-pin Thin Very Small Outline Package (TVSOP-DGV), 7.1 mm × 10.2 mm body, 0.4 mm pitch, 1.2 mm max height, RoHS-compliant NiPdAu lead finish, and MSL Level-1 reflow rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE–4OE | Active-low output enable inputs | Independent control per 4-bit section; asserted low enables corresponding Y outputs. |
| 1A1–4A4 | Noninverting data inputs | 16 total inputs grouped into four 4-bit banks; no internal inversion. |
| 1Y1–4Y4 | Noninverting buffered outputs | 16 outputs with integrated 25-Ω series resistance; drive up to ±12 mA. |
| VCC (Pins 7, 20, 33, 46) | Power supply | Distributed VCC pins minimize IR drop and high-speed switching noise across the die. |
| GND (Pins 4, 11, 23, 30, 36, 43) | Ground reference | Six GND pins provide low-inductance return paths for all output drivers and internal logic. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 25-Ω series output resistors | Eliminates need for 16 discrete termination resistors, reducing BOM count and PCB area. |
| Hot-insertion support (Ioff + power-up 3-state) | Enables safe replacement in live 5-V backplanes without disrupting adjacent bus segments. |
| Flow-through pin architecture | Input and output pins aligned on opposite sides simplifies layer routing and reduces trace crossovers. |
| Distributed VCC/GND pinning | Reduces ground bounce (VOLP <1 V at 5 V) and improves signal integrity in high-speed bus applications. |
| Latch-up immunity >500 mA | Meets JESD-17 requirements for robust operation in electrically noisy industrial environments. |
Applications
| Memory Address Buffering | Industrial Backplane Interface |
|---|---|
Use Scenario: Driving 16-bit address lines from a microcontroller to multiple SRAM or Flash devices on a shared bus. IC Role / Device Role / Timing Role: Noninverting buffer with 4.1 ns typical tPLH/tPHL, providing clean edge transitions and load isolation. Use Value: Integrated 25-Ω resistors suppress ringing on long parallel traces, eliminating timing margin loss due to overshoot. |
Use Scenario: Interfacing FPGA I/O banks to legacy 5-V peripheral modules in programmable logic controllers. IC Role / Device Role / Timing Role: Bus transceiver section enabling hot-swap-capable module insertion without bus lockup. Use Value: Ioff and power-up 3-state prevent current backflow and contention during module insertion/removal under power. |
| Clock Distribution Fanout | Legacy System Bus Driver |
Use Scenario: Distributing a 5-V clock signal to eight synchronous peripherals requiring matched skew and low jitter. IC Role / Device Role / Timing Role: Low-skew 4-bit buffer bank delivering sub-5 ns propagation delay with symmetrical rise/fall times. Use Value: Distributed VCC/GND pins minimize simultaneous switching noise, preserving clock edge fidelity across all outputs. |
Use Scenario: Replacing obsolete 74F244 or 74AS244 in aging telecom line cards requiring 5-V bus driving. IC Role / Device Role / Timing Role: Pin-compatible upgrade offering higher drive strength (±12 mA vs. ±8 mA), lower ground bounce, and hot-swap readiness. Use Value: Direct drop-in replacement with no PCB change needed-same TVSOP-48 footprint and pinout as legacy equivalents. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit noninverting buffer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ABT162244DGGR | TSSOP-48 package (7.9 mm × 6.2 mm); 70°C/W θJA vs. 58°C/W for DGV; same electrical specs and pinout. | Higher thermal resistance limits use in high-power-density layouts; otherwise functionally identical. | Select DGGR only if board design already uses TSSOP land pattern and thermal budget permits. |
| SN74LVC162244ADGGR | 3.3-V only (1.65–3.6 V); LVCMOS input thresholds; 24 mA drive; no integrated 25-Ω resistors. | Requires external termination and level-shifting for 5-V systems; not suitable for direct 5-V bus replacement. | Choose only for new 3.3-V designs where lower power and higher speed outweigh compatibility with existing 5-V infrastructure. |
Compared with SN74ABT162244DGVR, SN74ABT162244DGGR offers identical functionality in a slightly larger TSSOP package with higher thermal resistance, while SN74LVC162244ADGGR targets modern low-voltage systems but lacks 5-V compatibility and integrated termination-making SN74ABT162244DGVR the sole drop-in solution for industrial 5-V bus upgrades.
Availability
SN74ABT162244DGVR is available at Aetrix Electronics and suitable for industrial control backplanes, telecom data-path interfaces, and legacy 5-V memory subsystems requiring stable component supply, long-term lifecycle support, and guaranteed RoHS compliance.
Supply support for SN74ABT162244DGVR 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 heritage in high-reliability interface and bus technologies.
The SN74ABT162244DGVR belongs to TI's Widebus™ family of advanced bus-interface logic, engineered specifically for high-density, low-noise 5-V memory addressing, clock distribution, and bus-oriented receiver/transmitter applications in industrial and communications infrastructure.
FAQ
What is the maximum operating temperature range for SN74ABT162244DGVR?
The SN74ABT162244DGVR is rated for operation from −40°C to +85°C. This industrial temperature range is confirmed in the "Recommended Operating Conditions" table of the official datasheet (SCBS238E, Rev. June 2004), and applies specifically to the TVSOP (DGV) package variant including SN74ABT162244DGVR. It does not support the extended −55°C to +125°C range offered by the CFP (WD) military-grade version.
Does SN74ABT162244DGVR support hot insertion, and how is it implemented?
Yes, SN74ABT162244DGVR supports hot insertion via two complementary features: Ioff circuitry that limits current backflow to ±100 µA when VCC = 0, and power-up 3-state logic that holds all outputs in high-impedance during VCC ramp-up/down. These functions are explicitly validated in the datasheet's "description/ordering information" and "absolute maximum ratings" sections, ensuring safe insertion into live 5-V backplanes without disrupting bus operation.
What package type and dimensions does SN74ABT162244DGVR use?
SN74ABT162244DGVR uses the TVSOP-48 (DGV) package: 7.1 mm × 10.2 mm body size, 0.4 mm pin pitch, 1.2 mm maximum height, with 48 leads arranged in two gull-wing rows. Mechanical drawing MPDS006C (Rev. August 2000) and TI's Package Materials Information confirm these dimensions, and the top-side marking "AH2244" is unique to this DGV variant.
Can SN74ABT162244DGVR replace older 74F244 or 74AS244 devices?
Yes, SN74ABT162244DGVR is a functional and pin-compatible upgrade for 74F244 and 74AS244 in 5-V systems. It delivers higher output drive (±12 mA vs. ±8 mA), lower ground bounce (<1 V VOLP), integrated 25-Ω termination, and hot-insertion support-while retaining identical pinout, logic behavior, and TVSOP-48 footprint. No PCB redesign is required for drop-in replacement.
What is the purpose of the distributed VCC and GND pins on SN74ABT162244DGVR?
The SN74ABT162244DGVR places VCC on pins 7, 20, 33, and 46, and GND on six locations (pins 4, 11, 23, 30, 36, 43) to minimize power-delivery inductance and reduce simultaneous switching noise. This layout lowers ground bounce (VOLP), improves signal integrity across all 16 outputs, and is explicitly cited in the datasheet's "key features" as critical for high-speed bus performance.
SN74ABT162244DGVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ABT
- Package/Case:
- 48-TFSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 12mA, 12mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-TVSOP
SN74ABT162244DGVR FAQ
1.How can I place an order for SN74ABT162244DGVR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ABT162244DGVR 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 SN74ABT162244DGVR reliable?
The price and inventory of SN74ABT162244DGVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ABT162244DGVR is usually 5 days.
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Once your SN74ABT162244DGVR 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 SN74ABT162244DGVR?
For technical support, including SN74ABT162244DGVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ABT162244DGVR requirements.
6.How does Aetrix verify that SN74ABT162244DGVR is sourced from the original manufacturer or authorized distributors?
All SN74ABT162244DGVR 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 SN74ABT162244DGVR meets industry standards.
7.What is the process for return or replacement of SN74ABT162244DGVR?
All SN74ABT162244DGVR units undergo pre-shipment inspection (PSI). If there is an issue with SN74ABT162244DGVR, 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 SN74ABT162244DGVR part is unused and in its original packaging.
Return procedure for SN74ABT162244DGVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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