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NXP Semiconductors 74ABT16244ADL,112
- Part No.:
- 74ABT16244ADL,112
- Manufacturer:
- NXP Semiconductors
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
74ABT16244ADL,112.pdf
- Description:
- IC BUFFER NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,896
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Product details
Overview
74ABT16244ADL,112 from Nexperia is a 16-bit BiCMOS buffer/line driver with four independent 3-state output-enable controls (1OE–4OE), operating at 4.5 V to 5.5 V supply, delivering ±64 mA/±32 mA drive capability, and rated for -40 °C to +85 °C industrial temperature range. It serves as a high-speed bus interface in backplane or motherboard data routing applications requiring TTL-level compatibility and live insertion support.
For engineers reviewing the 74ABT16244ADL,112 datasheet, 74ABT16244ADL,112 pinout, 74ABT16244ADL,112 application, or 74ABT16244ADL,112 equivalent, this device is selected for robust 16-bit bidirectional buffering where IOFF-enabled partial power-down, low propagation delay (<3.4 ns), and ESD-hardened operation (HBM >2000 V) are critical design requirements.
Technical Context
The 74ABT16244ADL,112 implements four independent 4-bit buffered channels, each with dedicated active-low output enable (1OE–4OE), enabling selective 3-state control of groups Y0–Y3 per channel. Its BiCMOS architecture delivers TTL-compatible input thresholds (VIL ≤ 0.8 V, VIH ≥ 2.0 V) and rail-to-rail output swing under load.
IOFF circuitry actively disables outputs when VCC = 0 V, limiting backflow current to ±100 μA, supporting hot-swap and partial power-down systems. Propagation delays are tightly specified: tPLH/tPHL ≤ 2.8/3.4 ns (max), tPZH/tPZL ≤ 4.5/4.8 ns (max), ensuring deterministic timing in synchronous bus environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 4.5 V to 5.5 V - Ensures stable operation across standard 5 V ±10 % rails with margin for ripple and drop. |
| Output drive | +64 mA sink / -32 mA source - Supports driving heavy capacitive loads (e.g., >50 pF) and multiple TTL inputs without signal degradation. |
| Propagation delay | ≤ 3.4 ns (tPHL, max) - Enables reliable operation in high-speed digital buses up to ~150 MHz clock-equivalent rates. |
| IOFF leakage | ±100 μA at VCC = 0 V - Prevents damaging back-current during hot-plug or staggered power sequencing. |
| ESD rating | HBM >2000 V, CDM >1000 V - Meets industrial IEC 61000-4-2 level 3 immunity requirements without external protection. |
| Operating temp | -40 °C to +85 °C - Qualified for extended industrial environments including base station boards and PLC I/O modules. |
| Input threshold | VIL ≤ 0.8 V, VIH ≥ 2.0 V - Guarantees clean logic recognition from legacy TTL and CMOS sources without level-shifting. |
Pinout & Package
TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm lead pitch, designed for high-density PCB layouts with minimized switching noise via distributed VCC/GND pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1OE, 2OE, 3OE, 4OE (pins 1, 48, 25, 24) | Active-low output enable | Individually gates four 4-bit output groups (1Y–4Y); HIGH forces high-impedance OFF-state for bus isolation. |
| 1A0–1A3, 2A0–2A3, 3A0–3A3, 4A0–4A3 (pins 43–47, 37–41, 32–36, 26–30) | Data inputs | 16-bit parallel input bus; arranged in four 4-bit groups aligned with respective OE controls. |
| 1Y0–1Y3, 2Y0–2Y3, 3Y0–3Y3, 4Y0–4Y3 (pins 2–6, 8–12, 13–17, 19–23) | 3-state buffered outputs | 16-bit parallel output bus; each group mirrors corresponding A-inputs when OE is LOW. |
| VCC (pins 7, 18, 31, 42) | Power supply | Four distributed supply pins reduce IR drop and ground bounce in high-speed switching. |
| GND (pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight ground pins provide low-inductance return paths, critical for noise suppression in 16-bit parallel interfaces. |
Key Features
| Feature | Design Value |
|---|---|
| BiCMOS high-speed architecture | Combines bipolar speed and CMOS low static power, achieving sub-3.5 ns propagation with <1.0 mA ICC (3-state). |
| IOFF partial power-down | Automatically disables outputs at VCC = 0 V, limiting reverse current to ±100 μA-enables safe hot-swap in modular systems. |
| Multiple VCC/GND distribution | Four VCC and eight GND pins minimize simultaneous switching noise and improve signal integrity on dense backplanes. |
| TTL-level input compatibility | Accepts standard TTL VIH (≥2.0 V) and VIL (≤0.8 V) thresholds directly-eliminates need for level translators in mixed-logic systems. |
| Live insertion support | Rated for hot-plug operation per JEDEC JESD78B latch-up immunity (>500 mA), enabling field-replaceable module designs. |
Applications
| Backplane Data Routing | Industrial PLC I/O Expansion |
|---|---|
|
Use Scenario: Isolating and driving 16-bit address/data buses between CPU and peripheral slots in modular rack-mounted controllers. IC Role / Device Role / Timing Role: Bidirectional 3-state buffer providing bus contention control and signal amplification with <3.4 ns delay matching system timing budgets. Use Value: Four independent OE lines allow dynamic partitioning of the 16-bit bus into four isolated segments, reducing arbitration complexity and enabling concurrent slot access. |
Use Scenario: Interfacing microcontroller GPIO banks to high-current industrial sensors and actuators via DIN-rail mounted I/O modules. IC Role / Device Role / Timing Role: Level-shifting and current-boosting buffer translating MCU logic levels to robust 5 V TTL-compatible signals with ±64 mA drive. Use Value: IOFF protection prevents backfeed during module hot-swap or power cycling, eliminating risk of damage to host controller during field maintenance. |
| Telecom Line Card Interface | Test Equipment Signal Conditioning |
|
Use Scenario: Driving parallel control lines (e.g., configuration, reset, status) across high-noise telecom line cards with long trace runs. IC Role / Device Role / Timing Role: Noise-immune bus driver with distributed VCC/GND and HBM >2000 V ESD protection for board-to-board interconnect reliability. Use Value: Eight ground pins and four supply pins suppress simultaneous switching noise, maintaining signal fidelity on 10+ cm traces in multi-layer telecom PCBs. |
Use Scenario: Buffering and isolating DUT control signals (e.g., test mode selects, calibration triggers) in automated test equipment (ATE) fixtures. IC Role / Device Role / Timing Role: Precision timing buffer with guaranteed tPLZ/tPHZ ≤ 4.1/4.6 ns, enabling sub-5 ns edge placement accuracy for stimulus generation. Use Value: Tight propagation skew (<0.5 ns between channels) ensures synchronized assertion of multi-pin test vectors, critical for functional pattern validation. |
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) | Same ABT logic family, identical pinout (TSSOP48), but rated only to +70 °C ambient; IOFF not explicitly specified in datasheet. | Limited to commercial-temperature systems; lacks documented partial power-down behavior for hot-swap use cases. | Select only for cost-sensitive non-industrial applications where full -40 °C to +85 °C and IOFF are not required. |
| 74LVT16244ADL,118 (Nexperia) | Lower VCC range (2.7–3.6 V), reduced drive (±32 mA), faster tPLH/tPHL (≤2.0 ns), but no IOFF circuitry. | Designed for 3.3 V systems only; unsuitable for 5 V bus interfacing or partial power-down scenarios. | Choose for high-speed 3.3 V domains where 5 V tolerance and hot-swap safety are irrelevant. |
Compared with SN74ABT16244DGGR and 74LVT16244ADL,118, the 74ABT16244ADL,112 uniquely combines industrial temperature range, explicit IOFF protection, and 5 V TTL compatibility-making it the sole option for ruggedized 5 V backplane and hot-pluggable industrial I/O designs.
Availability
74ABT16244ADL,112 is available at Aetrix Electronics and suitable for backplane data routing, industrial PLC I/O expansion, telecom line card interface, and test equipment signal conditioning requiring stable component supply across extended temperature and high-reliability operational profiles.
Supply support for 74ABT16244ADL,112 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 global semiconductor expert focused on essential semiconductors, delivering high-performance, reliable components for automotive, industrial, and consumer markets.
The 74ABT series targets high-speed, high-drive 5 V logic applications-specifically engineered for robust bus interfacing in industrial control, telecom infrastructure, and instrumentation where noise immunity, thermal stability, and hot-swap safety are mandatory.
FAQ
Does 74ABT16244ADL,112 support live insertion and extraction?
Yes, the device is explicitly rated for live insertion and extraction per its datasheet features section. This is enabled by latch-up protection exceeding 500 mA (JESD78B Class II Level A) and IOFF circuitry that disables outputs during power-down, preventing damaging back-current flow during hot-swap events in modular systems.
What is the maximum capacitive load the outputs can drive while maintaining timing specs?
The dynamic characteristics table specifies test conditions using 50 pF load capacitance (CL) and 500 Ω load resistance (RL). Propagation delays (e.g., tPHL ≤ 3.4 ns) are guaranteed under these conditions. Driving >50 pF will increase delay and may degrade edge rate; for heavier loads, verify timing margins with actual board parasitics and consider adding series termination.
Can 74ABT16244ADL,112 interface directly with 3.3 V logic inputs?
No-its input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) are optimized for 5 V TTL, not 3.3 V CMOS. A 3.3 V HIGH signal (typically ~3.3 V) exceeds VIH and is accepted, but a 3.3 V LOW (~0 V) meets VIL. However, output swing is rail-to-rail (0 V to VCC), so driving 3.3 V inputs risks overvoltage; use level-shifting or clamping if interfacing to 3.3 V receivers.
How does the IOFF feature behave when VCC is ramping during power-up?
IOFF activates when VCC falls below ~0.8 V and remains active until VCC rises above ~1.5 V. During power-up, outputs stay in high-impedance until VCC crosses the enable threshold (~2.0 V), then follow normal OE control. This prevents glitching and back-current during brown-out or slow-ramp conditions, as confirmed in Section 9's IO(pu/pd) specification.
74ABT16244ADL,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- 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
74ABT16244ADL,112 FAQ
1.How can I place an order for 74ABT16244ADL,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT16244ADL,112 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 74ABT16244ADL,112 reliable?
The price and inventory of 74ABT16244ADL,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT16244ADL,112 is usually 5 days.
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Once your 74ABT16244ADL,112 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 74ABT16244ADL,112?
For technical support, including 74ABT16244ADL,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT16244ADL,112 requirements.
6.How does Aetrix verify that 74ABT16244ADL,112 is sourced from the original manufacturer or authorized distributors?
All 74ABT16244ADL,112 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 74ABT16244ADL,112 meets industry standards.
7.What is the process for return or replacement of 74ABT16244ADL,112?
All 74ABT16244ADL,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT16244ADL,112, 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 74ABT16244ADL,112 part is unused and in its original packaging.
Return procedure for 74ABT16244ADL,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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