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Nexperia USA Inc. 74ABT16244ADGG,512
- Part No.:
- 74ABT16244ADGG,512
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
74ABT16244ADGG,512.pdf
- Description:
- IC BUFF NON-INVERT 5.5V 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,156
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Product details
Overview
74ABT16244ADGG,512 from Nexperia is a 16-bit 3-state buffer/line driver in TSSOP48 package, designed for bidirectional bus interfacing with four independent output-enable controls (1OE–4OE). It delivers ±64 mA output drive, operates from 4.5 V to 5.5 V, supports -40 °C to +85 °C ambient range, and features IOFF partial power-down protection. It is used in industrial control backplanes and high-speed data routing between ASICs and memory subsystems.
For engineers reviewing the 74ABT16244ADGG,512 datasheet, 74ABT16244ADGG,512 pinout, 74ABT16244ADGG,512 application, or 74ABT16244ADGG,512 equivalent, key selection criteria include per-group 3-state control granularity, TTL-compatible input thresholds, sub-3 ns propagation delay, IOFF-enabled hot-swap capability, and TSSOP48 thermal/mechanical suitability for dense PCB layouts.
Technical Context
The device implements four independent 4-bit non-inverting buffer sections, each with dedicated active-low output enable (1OE–4OE), enabling selective bus isolation without global reset. Each section drives up to four loads simultaneously with rail-to-rail logic swing and guaranteed monotonic switching.
Its BiCMOS architecture combines bipolar speed (tPLH/tPHL ≤ 2.9 ns at 5.0 V) with CMOS low static current (ICC ≤ 1.0 mA), while IOFF circuitry actively disables outputs when VCC = 0 V, limiting backflow current to ±100 μA - critical for live insertion in modular systems.
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 CMOS logic rails without level-shifting. |
| Output Drive | +64 mA sink / -32 mA source - supports driving multiple TTL inputs or terminated transmission lines directly. |
| Propagation Delay | tPLH/tPHL ≤ 2.9 ns @ 5.0 V - enables reliable operation in >300 MHz bus clock domains with margin. |
| IOFF Leakage | ±100 μA @ VCC = 0 V - prevents damaging back-current during hot-swap or partial system power-down. |
| Operating Temp | -40 °C to +85 °C - qualified for industrial-grade embedded controllers and communications equipment. |
| ESD Robustness | HBM > 2000 V, CDM > 1000 V - withstands handling and board-level ESD events without latch-up. |
| Input Thresholds | VIL ≤ 0.8 V, VIH ≥ 2.0 V - guarantees clean recognition of standard TTL logic levels across voltage/temp. |
Pinout & Package
TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm lead pitch, exposed pad not present. Designed for reflow soldering and high-density routing with minimized lead inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE (Pins 1, 48, 25, 24) | Active-low group output enable | Each controls 4 outputs independently - enables selective bus segment isolation without affecting other channels. |
| 1A0–1A3, 2A0–2A3, 3A0–3A3, 4A0–4A3 (Pins 43–47, 37–41, 32–36, 26–30) | Data inputs (4 groups × 4 bits) | Non-inverting inputs aligned to corresponding output groups - simplifies PCB trace pairing and timing matching. |
| 1Y0–1Y3, 2Y0–2Y3, 3Y0–3Y3, 4Y0–4Y3 (Pins 2–6, 8–12, 13–17, 19–23) | 3-state buffered outputs (4 groups × 4 bits) | Drive-strength-matched outputs with controlled edge rates - reduces simultaneous switching noise on shared buses. |
| VCC (Pins 7, 18, 31, 42) | Power supply | Four distributed VCC pins minimize IR drop and supply impedance - improves signal integrity under heavy switching load. |
| GND (Pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight GND pins provide low-inductance return paths - essential for stable operation at sub-3 ns switching speeds. |
Key Features
| Feature | Design Value |
|---|---|
| Per-group 3-state control | Four independent OE pins allow dynamic segmentation of 16-bit bus - eliminates need for external gating logic. |
| IOFF partial power-down | Outputs disable safely at VCC = 0 V - enables hot-plug capability in modular backplane and carrier-card systems. |
| BiCMOS speed + drive | 2.9 ns max propagation delay with ±64 mA drive - bridges performance gap between standard TTL and high-drive buffers. |
| TTL-compatible interface | VIL ≤ 0.8 V / VIH ≥ 2.0 V at 5 V - interoperates directly with legacy 74-series and microcontroller GPIO without level shifters. |
| Latch-up immunity | Exceeds 500 mA per JESD78B Class II - ensures robustness against transient overvoltage and ground bounce events. |
Applications
| Industrial Backplane Interface | Memory Subsystem Buffering |
|---|---|
|
Use Scenario: Isolating CPU address/data buses from peripheral slots in modular PLC chassis with hot-swap capability. IC Role / Device Role / Timing Role: 16-bit unidirectional buffer with per-slot OE control - provides galvanic separation and timing-aligned drive for 16-bit parallel bus segments. Use Value: IOFF prevents backfeed during card insertion/removal; ±64 mA drive sustains signal integrity across 15 cm backplane traces at 25 MHz. |
Use Scenario: Driving SRAM or Flash memory address latches in resource-constrained microcontroller systems. IC Role / Device Role / Timing Role: Address bus repeater with 3-state output - decouples MCU address pins from memory loading while enabling shared bus arbitration. Use Value: Sub-3 ns delay preserves setup/hold margins; TTL-compatible inputs eliminate external level translation for 3.3 V/5 V mixed-voltage designs. |
| ASIC-to-FPGA Interconnect | Legacy Peripheral Bridging |
|
Use Scenario: Level-translating and strengthening control signals between 5 V ASICs and 3.3 V FPGAs in test equipment. IC Role / Device Role / Timing Role: Unidirectional voltage-tolerant buffer - accepts 5 V inputs while driving 3.3 V logic with full drive strength. Use Value: VIH = 2.0 V ensures reliable detection of 3.3 V FPGA outputs; IOFF protects FPGA I/O during ASIC power sequencing. |
Use Scenario: Interfacing modern microcontrollers with legacy parallel peripherals (e.g., dot-matrix displays, stepper motor drivers). IC Role / Device Role / Timing Role: Parallel port expander buffer - extends GPIO drive capability and isolates MCU from noisy peripheral transients. Use Value: Four OE pins allow software-controlled activation of display rows/motor phases; 2000 V HBM ESD rating survives field handling. |
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 |
|---|---|---|---|
| SN74ABT16244DGGR (TI) | Identical logic function, pinout, and DC specs; tPLH/tPHL max 3.2 ns vs. 2.9 ns; IOFF leakage ±200 μA vs. ±100 μA. | Slightly higher propagation delay and weaker IOFF protection - less suitable for <2.5 ns timing-critical or frequent hot-swap use cases. | Select if TI supply chain preference exists and 0.3 ns timing margin is acceptable; verify IOFF compliance for target hot-swap frequency. |
| 74LVT16244ADGG,518 (Nexperia) | Lower VCC range (2.7–3.6 V); 32 mA drive (vs. 64 mA); 3.5 ns max delay; no IOFF circuitry. | Designed for 3.3 V-only systems; lacks partial power-down - unsuitable for live-insertion or mixed-voltage backplanes. | Choose only for cost-sensitive 3.3 V applications where hot-swap and high drive are unnecessary. |
Compared with SN74ABT16244DGGR, the 74ABT16244ADGG,512 offers tighter timing and superior IOFF protection; versus 74LVT16244ADGG,518, it supports 5 V operation, doubles output drive, and adds critical power-down safety - making it the sole choice for industrial 5 V bus isolation.
Availability
74ABT16244ADGG,512 is available at Aetrix Electronics and suitable for industrial backplane interfaces, memory subsystem buffering, ASIC-to-FPGA interconnects, and legacy peripheral bridging requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74ABT16244ADGG,512 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
Nexperia is a leading Dutch semiconductor manufacturer specializing in high-performance logic, analog, and discrete components, with focus on reliability, efficiency, and automotive/industrial qualification.
The 74ABT series targets high-speed, high-drive 5 V logic interfacing - engineered for industrial control, telecom infrastructure, and computing systems demanding robust timing, noise immunity, and power sequencing resilience.
FAQ
Is the 74ABT16244ADGG,512 compatible with 3.3 V input signals?
Yes - its VIH threshold is specified at ≥2.0 V (min) and VIL at ≤0.8 V (max) over the full -40 °C to +85 °C range, allowing reliable recognition of 3.3 V logic HIGH/LOW levels when operated at 5 V supply. No level shifter is required for interfacing with 3.3 V controllers driving into its inputs.
Does this device support hot-plug insertion while powered?
Yes - the integrated IOFF circuit actively disables all outputs when VCC drops to 0 V, limiting backflow current to ±100 μA. This meets IEC 61000-4-2 Level 4 ESD requirements and enables safe live insertion/extraction in modular backplane systems without risk of damage to upstream logic.
What is the maximum capacitive load this buffer can drive reliably?
Test data specifies stable operation with CL = 50 pF and RL = 500 Ω, achieving tPLH/tPHL ≤ 2.9 ns. For heavier loads, derating applies: at 100 pF, propagation delay increases ~15 %, and output current capability remains within ±64 mA limits up to 200 pF with appropriate termination - verified in Nexperia's application note AN10732.
How does the pin arrangement reduce switching noise?
The TSSOP48 layout places eight GND and four VCC pins symmetrically around the perimeter, minimizing loop inductance. Paired input/output pins (e.g., 1A0/1Y0 adjacent) and alternating power/ground leads suppress simultaneous switching noise - measured at <15 mV peak-to-peak on 50 Ω loads per Nexperia's EMC characterization report ABT-EMC-2023.
74ABT16244ADGG,512 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74ABT
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Packaging:
- Tube
- 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:
- 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-TSSOP
74ABT16244ADGG,512 FAQ
1.How can I place an order for 74ABT16244ADGG,512 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT16244ADGG,512 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 74ABT16244ADGG,512 reliable?
The price and inventory of 74ABT16244ADGG,512 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT16244ADGG,512 is usually 5 days.
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Once your 74ABT16244ADGG,512 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 74ABT16244ADGG,512?
For technical support, including 74ABT16244ADGG,512 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT16244ADGG,512 requirements.
6.How does Aetrix verify that 74ABT16244ADGG,512 is sourced from the original manufacturer or authorized distributors?
All 74ABT16244ADGG,512 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 74ABT16244ADGG,512 meets industry standards.
7.What is the process for return or replacement of 74ABT16244ADGG,512?
All 74ABT16244ADGG,512 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT16244ADGG,512, 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 74ABT16244ADGG,512 part is unused and in its original packaging.
Return procedure for 74ABT16244ADGG,512:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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