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Texas Instruments SN74ABT16241ADL
- Part No.:
- SN74ABT16241ADL
- Manufacturer:
- Texas Instruments
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
SN74ABT16241ADL.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,049
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Product details
Overview
SN74ABT16241ADL from Texas Instruments is a 16-bit noninverting buffer/driver with 3-state outputs, designed for high-density memory address and bus interface applications. It operates at 4.5–5.5 V, delivers ±32 mA/±64 mA output drive, features flow-through pinout, distributed VCC/GND for noise reduction, and is rated for –40°C to 85°C industrial operation.
For engineers reviewing the SN74ABT16241ADL datasheet, SN74ABT16241ADL pinout, SN74ABT16241ADL application, or SN74ABT16241ADL equivalent, key selection criteria include 3-state bus driving capability, high-current drive strength, ground-bounce performance (<1 V VOLP), thermal resistance (94°C/W), and SSOP-48 package compatibility with legacy board layouts.
Technical Context
This device implements four independent 4-bit buffered channels, each with true output logic and complementary OE/!OE control inputs. Its EPIC-IIB BiCMOS architecture enables low power dissipation while maintaining TTL-compatible input thresholds (VIL = 0.8 V, VVIH = 2 V) and fast propagation delays (tPLH/tPHL ≤ 3.7 ns at 5 V).
The flow-through pinout minimizes trace crossing on PCBs, and distributed VCC/GND pins reduce simultaneous switching noise. Latch-up immunity exceeds 500 mA per JESD17, and ESD protection meets >2000 V HBM and >200 V machine model requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V - ensures compatibility with standard 5-V TTL and mixed-voltage systems. |
| Output Drive | –32 mA IOH / +64 mA IOL - supports heavy capacitive loads and fan-out to multiple TTL inputs without external buffering. |
| Propagation Delay | ≤3.7 ns (tPLH, tPHL) - enables reliable operation in high-speed address/data buses up to ~135 MHz. |
| Ground Bounce (VOLP) | <1 V at VCC = 5 V - reduces signal integrity risk during simultaneous output switching in dense PCB layouts. |
| Thermal Resistance | θJA = 94°C/W (DL package) - defines maximum power dissipation limit under natural convection for thermal design margining. |
| Operating Temperature | –40°C to +85°C - qualifies for industrial-grade embedded systems including automation controllers and communications backplanes. |
| Input Thresholds | VIL ≤ 0.8 V, VIH ≥ 2.0 V - guarantees robust noise margin against TTL-level signals and avoids metastability in mixed-signal interfaces. |
Pinout & Package
SN74ABT16241ADL uses a 48-pin Shrink Small-Outline Package (SSOP-DL), 300-mil body width, 0.5-mm lead pitch, JEDEC MO-153 compliant, with 1.2-mm max height and gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 24, 25, 48 | Output Enable (OE or !OE) | Active-low and active-high complementary controls per 4-bit group - enables independent gating of four 4-bit channels. |
| 2–6, 8–12, 13–17, 19–23 | Outputs (Y1–Y4 per group) | True-buffered 3-state outputs - high-drive capability allows direct connection to memory address lines or data buses. |
| 47–43, 41–37, 36–32, 30–26 | Inputs (A1–A4 per group) | TTL-compatible inputs - accept standard 5-V logic levels and support wired-OR or bus-sharing configurations when outputs are disabled. |
| 4, 10, 15, 20, 27, 33, 38, 44 | GND | Distributed ground pins - minimize ground bounce and supply noise by localizing return paths for each functional quadrant. |
| 7, 18, 29, 39 | VCC | Distributed power pins - decouple supply locally across the die, reducing high-frequency switching noise coupling between channels. |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through architecture | Input and output pins aligned on opposite sides - eliminates layer jumps and vias in PCB routing, reducing signal skew and crosstalk. |
| Distributed VCC/GND | Four VCC and eight GND pins - lowers effective power/ground inductance, improving transient response and noise immunity. |
| High-output drive | –32 mA / +64 mA - drives 20+ TTL loads or 50-Ω transmission lines directly, eliminating need for additional line drivers. |
| EPIC-IIB BiCMOS process | Combines bipolar speed with CMOS low static power - achieves <1 V ground bounce while maintaining sub-4 ns propagation delay. |
| Latch-up immunity | >500 mA per JESD17 - prevents destructive latch-up during hot-plug or ESD events in live-backplane environments. |
Applications
| Memory Address Buffering | Bus Transceiver Interface |
|---|---|
Use Scenario: Driving 16-bit address lines from a microcontroller to SRAM or Flash memory in an industrial PLC. IC Role / Device Role / Timing Role: Noninverting 3-state buffer isolating CPU address bus from memory array; enables multi-master arbitration via OE control. Use Value: High current drive ensures clean edges into 30-pF load capacitance; flow-through layout simplifies 2-layer PCB routing without stubs or vias. | Use Scenario: Bidirectional data bus isolation between FPGA and peripheral ASIC in a telecom baseband module. IC Role / Device Role / Timing Role: Unidirectional driver segment within a larger transceiver system; provides level-shifting and fan-out amplification for write-side data paths. Use Value: Low propagation delay (≤3.7 ns) preserves setup/hold timing margins; distributed power pins suppress switching noise affecting adjacent analog circuits. |
| Clock Distribution Fanout | Legacy System Bus Extension |
Use Scenario: Distributing a 25-MHz system clock to four synchronous peripherals in a test equipment controller. IC Role / Device Role / Timing Role: Low-skew, high-drive clock buffer with 3-state enable - allows dynamic clock gating per peripheral domain. Use Value: Matched tPLH/tPHL ensures <0.5 ns inter-channel skew; ground-bounce suppression maintains clock edge integrity across all outputs. | Use Scenario: Extending ISA or VMEbus address/data lines in retro-computing hardware restoration projects. IC Role / Device Role / Timing Role: Pin-compatible upgrade for obsolete 74F241/74AS241 buffers - retains same DL-48 footprint and logic behavior. Use Value: SSOP-DL package matches original board land pattern; TTL-compatible thresholds ensure drop-in replacement without redesign. |
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 |
|---|---|---|---|
| SN74ABT16244ADL | Inverting output logic (vs. noninverting in SN74ABT16241ADL); identical pinout, drive strength, and timing specs. | Requires logic inversion in upstream/downstream circuitry; unsuitable where signal polarity must be preserved. | Select only when system-level inversion is acceptable or compensated elsewhere in the signal chain. |
| SN74LVC16244ADGGR | 3.3-V only operation (1.65–3.6 V), lower drive (–24/+24 mA), smaller TSSOP-48 package (4.4 mm width vs. DL's 7.5 mm). | Not compatible with 5-V buses; requires level translation if interfacing with legacy 5-V logic or memory. | Choose for new 3.3-V designs prioritizing lower power and board space; avoid for 5-V mixed-signal systems. |
Compared with SN74ABT16244ADL, SN74ABT16241ADL preserves signal polarity critical for address decoding; compared with SN74LVC16244ADGGR, it maintains full 5-V interoperability and higher drive for legacy bus loading - making SN74ABT16241ADL the preferred choice for industrial 5-V backplane expansion.
Availability
SN74ABT16241ADL is available at Aetrix Electronics and suitable for industrial automation controllers, telecom backplane interfaces, and legacy system upgrades requiring stable component supply, long-lifecycle support, and SSOP-48 footprint compatibility.
Supply support for SN74ABT16241ADL 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 U.S.-based semiconductor company founded in 1930, specializing in analog, embedded processing, and logic solutions for industrial, automotive, and communications markets.
The SN74ABT16241ADL belongs to TI's Widebus™ family of high-speed bus-interface logic, engineered specifically for noise-resilient, high-density memory addressing and clock distribution in mission-critical industrial systems.
FAQ
What is the recommended power-up sequence for SN74ABT16241ADL to ensure proper 3-state initialization?
TI specifies that OE should be tied to VCC through a pullup resistor and !OE to GND through a pulldown resistor during power-up. The minimum resistor values depend on the driver's current-sinking/source capability - typically 10 kΩ suffices. This ensures all outputs remain in high-impedance state until system firmware asserts valid control signals, preventing bus contention on SN74ABT16241ADL-powered systems.
Does SN74ABT16241ADL support hot-swap or live-insertion into a powered backplane?
SN74ABT16241ADL has no built-in hot-swap protection, but its latch-up immunity (>500 mA per JESD17) and ESD robustness (>2000 V HBM) provide margin against transient faults. For safe live insertion, external series resistors (22–47 Ω) on outputs and controlled slew-rate enable signals are recommended. TI does not guarantee hot-swap operation for SN74ABT16241ADL without such external circuitry.
Can SN74ABT16241ADL drive a 50-Ω transmission line directly without termination resistors?
Yes - SN74ABT16241ADL's ±32 mA/±64 mA output drive can source/sink sufficient current to drive unterminated 50-Ω lines at moderate frequencies (<50 MHz). However, for clean signal integrity above 25 MHz, TI recommends series source termination (22–33 Ω) near the SN74ABT16241ADL output to suppress reflections, especially over longer traces.
What is the maximum capacitive load SN74ABT16241ADL can drive while maintaining specified timing?
TI characterizes SN74ABT16241ADL switching parameters at CL = 50 pF. While it can drive heavier loads (e.g., 100 pF), propagation delays increase linearly - tPLH/tPHL may exceed 5 ns at 100 pF. For guaranteed timing compliance, keep total load ≤50 pF per output, including trace capacitance and input capacitance of downstream devices connected to SN74ABT16241ADL.
Is SN74ABT16241ADL RoHS compliant and lead-free?
Yes - SN74ABT16241ADL is RoHS compliant with lead-free (NIPDAU) terminal finish, per TI's packaging addendum. It carries MSL Level-1 rating (unlimited floor life at ≤30°C/60% RH) and is qualified for reflow up to 260°C peak temperature, meeting JEDEC J-STD-020 standards for lead-free assembly processes used with SN74ABT16241ADL.
SN74ABT16241ADL 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:
- 32mA, 64mA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-SSOP
SN74ABT16241ADL FAQ
1.How can I place an order for SN74ABT16241ADL through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74ABT16241ADL 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 SN74ABT16241ADL reliable?
The price and inventory of SN74ABT16241ADL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74ABT16241ADL is usually 5 days.
3.What payment methods are accepted for SN74ABT16241ADL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74ABT16241ADL transactions.
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4.How is shipping managed for SN74ABT16241ADL?
SN74ABT16241ADL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74ABT16241ADL 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 SN74ABT16241ADL?
For technical support, including SN74ABT16241ADL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74ABT16241ADL requirements.
6.How does Aetrix verify that SN74ABT16241ADL is sourced from the original manufacturer or authorized distributors?
All SN74ABT16241ADL 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 SN74ABT16241ADL meets industry standards.
7.What is the process for return or replacement of SN74ABT16241ADL?
All SN74ABT16241ADL units undergo pre-shipment inspection (PSI). If there is an issue with SN74ABT16241ADL, 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 SN74ABT16241ADL part is unused and in its original packaging.
Return procedure for SN74ABT16241ADL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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