My Inquiry
My Account
Texas Instruments SN74ABT162244DL
- Part No.:
- SN74ABT162244DL
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
SN74ABT162244DL.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:118
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN74ABT162244DL 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, and hot-insertion support via Ioff and power-up 3-state logic. It operates at 4.5–5.5 V, delivers ±12 mA drive strength, and targets high-density memory address, clock, and bus interface applications in industrial control and telecom backplanes.
For engineers reviewing the SN74ABT162244DL datasheet, SN74ABT162244DL pinout, SN74ABT162244DL application, or SN74ABT162244DL equivalent, key selection considerations include its SSOP-48 package, guaranteed 3.9 ns max tPLH/tPHL propagation delay at 5 V, 25-Ω on-die series termination, and Ioff-enabled hot-swap capability - all critical for noise-sensitive, high-speed parallel bus designs.
Technical Context
This device implements a flow-through pin architecture across four identical 4-bit buffer sections, each with symmetrical active-low OE control and noninverting logic. Each output stage integrates a matched 25-Ω series resistor to suppress transmission-line reflections without external components.
Its Ioff circuitry disables outputs when VCC = 0 V (±100 µA leakage), while power-up 3-state ensures high-impedance during supply ramp-up/down. Distributed VCC/GND pins and ground-bounce-limited VOLP (<1 V at 5 V) support stable operation in dense PCB layouts with fast switching transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - compatible with standard 5-V TTL and CMOS systems; no level-shifting required. |
| Output Drive | ±12 mA - sufficient to drive 50-pF loads at ≤4 ns propagation delay; supports terminated and unterminated buses. |
| tPLH / tPHL | 1 ns (min) to 3.9 ns (max) at 5 V - enables >200 MHz bus operation with tight timing margins. |
| Integrated Series Resistor | 25 Ω - eliminates need for external source-series termination resistors, reducing BOM count and layout area. |
| Ioff Leakage | ±100 µA at VCC = 0 V - prevents backflow current during hot insertion, protecting upstream drivers and system integrity. |
| Power-Up 3-State | Active during VCC ramp (0–2.1 V) - avoids bus contention at power-on/off, eliminating external pull-up requirements on OE. |
| VOH / VOL | 3.1 V min VOH at −3 mA; 0.65 V max VOL at 8 mA - meets TTL-compatible voltage thresholds for robust noise margin. |
Pinout & Package
SN74ABT162244DL uses a 48-pin Shrink Small-Outline Package (SSOP-DL), 12.6 mm × 6.1 mm body, 0.5 mm pitch, 1.2 mm max height, JEDEC MO-153 compliant. Pin 1 marked with corner chamfer; gage plane defined per TI drawing DGG0048A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE | Active-low output-enable control inputs | Each enables/disables one 4-bit buffer section; tied high via pull-up for default high-Z during power sequencing. |
| 1A1–1A4, 2A1–2A4, 3A1–3A4, 4A1–4A4 | Noninverting data inputs | Four groups of four inputs feeding respective buffer sections; flow-through layout minimizes trace crossovers. |
| 1Y1–1Y4, 2Y1–2Y4, 3Y1–3Y4, 4Y1–4Y4 | Noninverting buffered outputs | Each output includes internal 25-Ω series resistor; capable of sourcing/sinking ±12 mA into 50-pF load. |
| VCC (Pins 7, 20, 33, 46) | Supply voltage connections | Distributed VCC pins reduce simultaneous switching noise and improve PSRR across 16-bit bus. |
| GND (Pins 4, 11, 23, 30, 37, 44) | Ground return connections | Six GND pins provide low-inductance return paths; minimize ground bounce (VOLP <1 V) under full switching. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 25-Ω series output resistors | Eliminates six to eight external resistors per device, reducing PCB area and assembly cost in multi-bit bus interfaces. |
| Flow-through pin architecture | Input-to-output signal path runs linearly left-to-right per section, enabling straight trace routing and minimizing layer transitions. |
| Ioff and power-up 3-state | Enables true hot-plug capability in modular backplane systems without risk of bus contention or latch-up (exceeds JESD-17: >500 mA). |
| Distributed VCC and GND pins | Reduces peak ground bounce by >30% vs. single-supply-pin alternatives, verified by typical VOLP <1 V at 5 V, 25°C. |
| Widebus™ family compatibility | Pin- and function-compatible with other TI Widebus devices (e.g., SN74ABT162245), simplifying design reuse across buffer/transceiver variants. |
Applications
| Memory Address Buffering | Clock Distribution |
|---|---|
|
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 16-bit buffer with 3-state control, isolating address bus segments during chip-select arbitration. Use Value: Integrated 25-Ω resistors suppress ringing on long traces; flow-through pinout allows direct fanout without vias or stubs. |
Use Scenario: Distributing a single system clock to multiple synchronous peripherals (e.g., ADCs, DACs, FPGAs) with matched skew. IC Role / Device Role / Timing Role: Low-skew, high-drive clock buffer with symmetrical enable control per 4-bit group. Use Value: 3.9 ns max propagation delay and <1 V ground bounce ensure setup/hold compliance across 16 destinations at 100+ MHz. |
| Hot-Swappable Backplane Interface | Legacy Bus Transceiver Support |
|
Use Scenario: Enabling live insertion/removal of line cards in telecom or industrial chassis with shared parallel control/data buses. IC Role / Device Role / Timing Role: Hot-insertion–qualified buffer using Ioff and power-up 3-state to prevent backfeed and contention. Use Value: ±100 µA Ioff leakage at VCC = 0 V and automatic high-Z during power ramp eliminate need for complex sequencing circuits. |
Use Scenario: Interfacing modern microcontrollers to legacy ISA, PC/104, or proprietary 16-bit parallel peripheral buses. IC Role / Device Role / Timing Role: Level-translating, high-current buffer supporting TTL-compatible input thresholds and 12-mA drive into capacitive loads. Use Value: VOH ≥3.1 V at −3 mA and VOL ≤0.65 V at 8 mA guarantee reliable logic-level recognition across aging or marginal receivers. |
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 (5.1 mm × 6.2 mm); 1.2 mm max height; same electrical specs and pinout as SN74ABT162244DL. | Better suited for space-constrained boards requiring lower profile and higher density; thermal resistance θJA = 70°C/W vs. DL's 63°C/W. | Select DGGR for compact, high-layer-count PCBs where SSOP height clearance is limited; verify reflow profile for TSSOP. |
| SN74ABT162245DL | Bus transceiver (direction-controlled) vs. buffer; includes DIR input; otherwise identical pinout, timing, and drive strength. | Required when bidirectional data flow (e.g., memory data bus) is needed instead of unidirectional buffering. | Choose SN74ABT162245DL only if direction control is essential; not a drop-in replacement due to functional difference in DIR vs. OE logic. |
Compared with SN74ABT162244DGGR, the SN74ABT162244DL offers superior thermal performance (63°C/W vs. 70°C/W) in board-edge or airflow-limited environments, while SN74ABT162245DL adds bidirectional capability at the cost of losing dedicated OE-per-section control - making it unsuitable for independent 4-bit gating.
Availability
SN74ABT162244DL is available at Aetrix Electronics and suitable for industrial control panels, telecom backplane interfaces, and legacy bus expansion systems requiring stable component supply, long-term obsolescence management, and RoHS-compliant production support.
Supply support for SN74ABT162244DL 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 founded in 1930, specializing in analog, embedded processing, and logic solutions for industrial, automotive, and communications markets.
The SN74ABT162244DL belongs to TI's Widebus™ family of high-speed, low-noise bus interface ICs, engineered specifically for dense, high-reliability parallel bus systems in mission-critical infrastructure equipment.
FAQ
What is the maximum operating temperature range for the SN74ABT162244DL?
The SN74ABT162244DL is rated for operation from −40°C to +85°C ambient temperature. This industrial-grade range is validated per TI's recommended operating conditions and supported by thermal data showing θJA = 63°C/W for the SSOP-DL package, ensuring reliable performance in enclosed control cabinets and base station environments.
Does the SN74ABT162244DL require external series resistors on its outputs?
No, the SN74ABT162244DL does not require external series resistors. Each output integrates an equivalent 25-Ω series resistor to dampen overshoot and undershoot on transmission lines - a key feature confirmed in the datasheet's "Members of the Texas Instruments Widebus Family" header and electrical characteristics table.
How does the SN74ABT162244DL support hot insertion?
The SN74ABT162244DL supports hot insertion through two complementary features: Ioff circuitry limits current backflow to ±100 µA when VCC = 0 V, and power-up 3-state forces outputs into high-impedance during supply ramp-up/down. Both mechanisms are explicitly documented in the "description/ordering information" and "FUNCTION TABLE" sections of the SCBS238E datasheet.
What is the pin count and package type of the SN74ABT162244DL?
The SN74ABT162244DL uses a 48-pin Shrink Small-Outline Package (SSOP-DL) with 0.5 mm pitch, 12.6 mm × 6.1 mm body size, and 1.2 mm maximum height. This mechanical outline is defined in TI's DGG0048A drawing and confirmed in the "PACKAGE OPTION ADDENDUM" as "SSOP (DL) | 48".
Can the SN74ABT162244DL be used as a single 16-bit buffer or split into smaller groups?
Yes, the SN74ABT162244DL can be configured flexibly: as one 16-bit buffer (all OEs tied), two 8-bit buffers (1OE+2OE and 3OE+4OE grouped), or four independent 4-bit buffers (each OE controlling its own section). This configurability is stated verbatim in the "description/ordering information" section: "These devices can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer."
SN74ABT162244DL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74ABT
- Package/Case:
- 48-BSSOP (0.295", 7.50mm 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:
- 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-SSOP
SN74ABT162244DL FAQ
1.How can I place an order for SN74ABT162244DL through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ABT162244DL 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 SN74ABT162244DL reliable?
The price and inventory of SN74ABT162244DL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ABT162244DL is usually 5 days.
3.What payment methods are accepted for SN74ABT162244DL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ABT162244DL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74ABT162244DL?
SN74ABT162244DL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ABT162244DL 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 SN74ABT162244DL?
For technical support, including SN74ABT162244DL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ABT162244DL requirements.
6.How does Aetrix verify that SN74ABT162244DL is sourced from the original manufacturer or authorized distributors?
All SN74ABT162244DL 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 SN74ABT162244DL meets industry standards.
7.What is the process for return or replacement of SN74ABT162244DL?
All SN74ABT162244DL units undergo pre-shipment inspection (PSI). If there is an issue with SN74ABT162244DL, 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 SN74ABT162244DL part is unused and in its original packaging.
Return procedure for SN74ABT162244DL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN74ABT162244DL 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…
