My Inquiry
My Account
NXP Semiconductors 74ABT16245BDL,118
- Part No.:
- 74ABT16245BDL,118
- Manufacturer:
- NXP Semiconductors
- Package:
- -
- Datasheet:
-
74ABT16245BDL,118.pdf
- Description:
- IC TXRX NON-INVERT 5.5V 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,416
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74ABT16245BDL,118 from Nexperia is a 16-bit bidirectional bus transceiver with dual 3-state control, designed for high-speed TTL-level data bus interfacing in industrial and embedded systems. It operates from 4.5 V to 5.5 V, delivers ±64 mA output drive (LOW), supports -40 °C to +85 °C ambient range, and features IOFF partial power-down protection. It is used in backplane interconnects and memory expansion subsystems where level translation and bus isolation are required.
For engineers reviewing the 74ABT16245BDL,118 datasheet, 74ABT16245BDL,118 pinout, 74ABT16245BDL,118 application, or 74ABT16245BDL,118 equivalent, this page provides verified functional architecture, TSSOP48 pin mapping, static/dynamic timing specs, real-world use cases, and validated drop-in alternatives for system-level bus interface design.
Technical Context
The device implements two independent 8-bit transceiver sections (1A/1B and 2A/2B), each with dedicated direction (1DIR/2DIR) and output enable (1OE/2OE) controls. Its BiCMOS process enables 2.0 ns typical propagation delay (tPLH/tPHL) and sub-5 ns 3-state transition times (tPZH/tPLZ), ensuring clean bus arbitration in synchronous parallel interfaces.
IOFF circuitry actively disables outputs when VCC = 0 V, limiting backflow current to ±100 μA, while multiple VCC/GND pins reduce switching noise. Input clamping voltage is -1.2 V, and ESD robustness meets HBM >2000 V and CDM >1000 V per JEDEC JS-001/JS-002.
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 circuitry. |
| Propagation Delay | tPLH/tPHL ≤ 3.5 ns @ VCC = 5.0 V - Enables reliable operation in 100+ MHz parallel bus systems with tight timing margins. |
| Output Drive | +64 mA sink / -32 mA source - Drives heavy capacitive loads (e.g., 50 pF buses) while maintaining VOL ≤ 0.55 V and VOH ≥ 2.0 V. |
| IOFF Leakage | ±100 μA @ VCC = 0 V - Prevents damaging back-current during hot-swap or partial power-down sequences in modular systems. |
| Operating Temperature | -40 °C to +85 °C - Qualified for industrial-grade embedded controllers, PLC I/O modules, and telecom line cards. |
| ESD Protection | HBM >2000 V, CDM >1000 V - Survives handling and board-level electrostatic events without latch-up or parametric shift. |
| Input Thresholds | VIL ≤ 0.8 V, VIH ≥ 2.0 V - Directly interfaces with legacy TTL outputs without external biasing or pull-ups. |
Pinout & Package
TSSOP48 (SOT362-1) package: plastic thin shrink small outline, 48 leads, 6.1 mm body width, 0.5 mm lead pitch, 1.2 mm max height. Designed for high-density PCB layouts with thermal and noise performance optimized via distributed VCC/GND pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1DIR, 2DIR (Pins 1, 24) | Direction control input | Active-HIGH signal selects data flow direction per 8-bit section (A→B or B→A); enables independent bidirectional control. |
| 1OE, 2OE (Pins 48, 25) | Output enable input (active LOW) | Asserting LOW enables corresponding 8-bit outputs; HIGH forces high-impedance state for bus sharing or isolation. |
| 1A0–1A7 (Pins 47, 46, 44, 43, 41, 40, 38, 37) | Data I/O port A (Section 1) | First 8-bit bidirectional bus segment; connects to microcontroller or ASIC data bus side A. |
| 1B0–1B7 (Pins 2, 3, 5, 6, 8, 9, 11, 12) | Data I/O port B (Section 1) | First 8-bit bidirectional bus segment; connects to peripheral or memory bus side B. |
| 2A0–2A7 (Pins 36, 35, 33, 32, 30, 29, 27, 26) | Data I/O port A (Section 2) | Second 8-bit bidirectional bus segment; supports dual-bus architectures or wider 16-bit mode. |
| 2B0–2B7 (Pins 13, 14, 16, 17, 19, 20, 22, 23) | Data I/O port B (Section 2) | Second 8-bit bidirectional bus segment; allows independent control of two memory banks or peripherals. |
| VCC (Pins 7, 18, 31, 42) | Power supply | Four dedicated VCC pins minimize IR drop and supply noise across high-speed switching activity. |
| GND (Pins 4, 10, 15, 21, 28, 34, 39, 45) | Ground reference | Eight GND pins provide low-inductance return paths, critical for signal integrity at sub-5 ns edge rates. |
Key Features
| Feature | Design Value |
|---|---|
| BiCMOS high-speed architecture | Delivers 2.0 ns typical tPLH/tPHL and <5 ns 3-state transitions, enabling >100 MHz bus clocking with margin. |
| Dual independent 8-bit control | Separate 1DIR/1OE and 2DIR/2OE allow concurrent operation of two isolated bus segments without contention. |
| IOFF partial power-down | Prevents destructive back-current during live insertion or asymmetric power sequencing in modular backplanes. |
| Power-up 3-state | Outputs remain in high-impedance state until VCC stabilizes, eliminating bus glitches during power-on reset. |
| Latch-up immunity | Exceeds 500 mA per JESD78 Class II Level B, ensuring robustness against transient overvoltage and ground bounce. |
Applications
| Memory Expansion Interface | Industrial Backplane Interconnect |
|---|---|
|
Use Scenario: Connecting an 8-bit microcontroller data bus to a 16-bit SRAM module requiring bidirectional data transfer and address/data multiplexing. IC Role / Device Role / Timing Role: Acts as a 16-bit bidirectional bus buffer with independent direction control per byte lane, synchronizing read/write cycles between mismatched bus widths. Use Value: Eliminates need for discrete logic or FPGA glue logic; enables direct CPU-to-SRAM access with <3.5 ns propagation delay and guaranteed 3-state isolation during bus turnaround. |
Use Scenario: Isolating and extending parallel control/data buses between hot-pluggable I/O modules in a programmable logic controller (PLC) rack. IC Role / Device Role / Timing Role: Provides electrically isolated, direction-controllable bus extension with IOFF protection during module insertion/removal. Use Value: Supports live insertion/extraction without disrupting master controller operation; IOFF limits back-current to <100 μA, preventing damage to powered-backplane circuitry. |
| Legacy System Bus Bridge | Test Equipment Data Acquisition |
|
Use Scenario: Bridging a 5 V TTL ISA bus to a modern FPGA-based controller in retro-computing or industrial retrofit applications. IC Role / Device Role / Timing Role: Serves as a level-compatible, high-drive bus transceiver with TTL-input thresholds and 64 mA sink capability for driving legacy bus loads. Use Value: Matches legacy bus electrical requirements (VIL ≤ 0.8 V, VOL ≤ 0.55 V) while delivering sufficient drive strength to meet ISA spec loading without external buffers. |
Use Scenario: Routing parallel digital test signals between a PXI chassis controller and multi-channel DMM or waveform generator modules. IC Role / Device Role / Timing Role: Functions as a low-latency, noise-immune bus repeater with distributed VCC/GND pins minimizing crosstalk in high-density test fixtures. Use Value: Achieves <4 ns worst-case propagation delay and <6 ns 3-state disable time, preserving signal fidelity for 100+ MHz digital pattern generation and capture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit bidirectional bus transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74ABT16245DGGR (TI) | Same 48-pin TSSOP package, identical 4.5–5.5 V supply, but higher ICC (700 μA vs 250 μA) and no IOFF specification. | Lacks IOFF protection; unsuitable for partial power-down or hot-swap systems requiring back-current blocking. | Select only for fixed-power systems where IOFF is not required and TI supply chain preference applies. |
| 74LVT16245ADL,118 (Nexperia) | Lower 3.3 V supply (2.7–3.6 V), reduced drive (±32 mA), faster tPLH/tPHL (1.8 ns typ), but no IOFF or HBM >2000 V rating. | Optimized for 3.3 V LVTTL systems; incompatible with 5 V buses and lacks industrial ESD robustness. | Choose only for 3.3 V designs prioritizing speed over voltage compatibility and ruggedness. |
Compared with SN74ABT16245DGGR and 74LVT16245ADL,118, the 74ABT16245BDL,118 uniquely combines 5 V TTL compatibility, IOFF-enabled hot-swap safety, and industrial-grade ESD/latch-up immunity-making it the sole option for robust 5 V modular backplane and legacy interface applications.
Availability
74ABT16245BDL,118 is available at Aetrix Electronics and suitable for industrial automation, test equipment, and legacy system retrofits requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for 74ABT16245BDL,118 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 efficiency technologies, delivering high-performance logic, analog, and MOSFET solutions for automotive, industrial, and computing markets.
The 74ABT series targets high-speed, robust 5 V TTL-compatible logic interfaces, emphasizing noise immunity, bus drive strength, and reliability in demanding industrial environments.
FAQ
Does 74ABT16245BDL,118 support hot-swap operation?
Yes. Its IOFF circuitry actively disables outputs when VCC = 0 V, limiting backflow current to ±100 μA. This prevents damage during live insertion or removal in modular backplanes, satisfying JEDEC JESD78 Class II latch-up immunity and enabling safe hot-swap in PLC and telecom rack systems.
What is the maximum capacitive load this transceiver can drive reliably?
It drives up to 50 pF loads while maintaining VOL ≤ 0.55 V at IOL = 64 mA and VOH ≥ 2.0 V at IOH = -32 mA, per datasheet Table 6. This supports standard PCB traces and multiple TTL inputs on shared buses without signal degradation or timing violations.
Can 74ABT16245BDL,118 be used in mixed-voltage systems with 3.3 V controllers?
No. Its absolute minimum VCC is 4.5 V, and input thresholds (VIH ≥ 2.0 V, VIL ≤ 0.8 V) are specified for 5 V TTL levels. Driving it from a 3.3 V controller risks marginal VIH recognition and violates recommended operating conditions; a level-shifter or 3.3 V-compatible part like 74LVT16245ADL is required.
How does the dual OE/DIR architecture improve system design flexibility?
Separate 1OE/1DIR and 2OE/2DIR pins allow independent control of two 8-bit bus segments-for example, isolating memory-mapped I/O from data RAM, or managing separate peripheral buses. This eliminates external gating logic, reduces PCB routing complexity, and enables precise timing control for concurrent bus operations.
74ABT16245BDL,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- *
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Logic Type:
- -
- Number of Elements:
- -
- Number of Bits per Element:
- -
- Input Type:
- -
- Output Type:
- -
- Current - Output High, Low:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
74ABT16245BDL,118 FAQ
1.How can I place an order for 74ABT16245BDL,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74ABT16245BDL,118 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 74ABT16245BDL,118 reliable?
The price and inventory of 74ABT16245BDL,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74ABT16245BDL,118 is usually 5 days.
3.What payment methods are accepted for 74ABT16245BDL,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74ABT16245BDL,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74ABT16245BDL,118?
74ABT16245BDL,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74ABT16245BDL,118 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 74ABT16245BDL,118?
For technical support, including 74ABT16245BDL,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74ABT16245BDL,118 requirements.
6.How does Aetrix verify that 74ABT16245BDL,118 is sourced from the original manufacturer or authorized distributors?
All 74ABT16245BDL,118 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 74ABT16245BDL,118 meets industry standards.
7.What is the process for return or replacement of 74ABT16245BDL,118?
All 74ABT16245BDL,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74ABT16245BDL,118, 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 74ABT16245BDL,118 part is unused and in its original packaging.
Return procedure for 74ABT16245BDL,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74ABT16245BDL,118 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
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
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…
