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Nexperia USA Inc. 74LVC2245ADB,112
- Part No.:
- 74LVC2245ADB,112
- Manufacturer:
- Nexperia USA Inc.
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74LVC2245ADB,112.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,072
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Product details
Overview
74LVC2245ADB,112 from Nexperia is an octal bus transceiver with integrated 30 Ω series termination resistors, direction control (DIR), and 3-state outputs enabled by active-low OE. It operates from 1.2 V to 3.6 V supply, supports 5 V tolerant I/O, and functions as a level translator between 3.3 V and 5 V domains in high-speed digital buses. Used in industrial control backplanes and FPGA I/O expansion interfaces.
For engineers reviewing the 74LVC2245ADB,112 datasheet, 74LVC2245ADB,112 pinout, 74LVC2245ADB,112 application, or 74LVC2245ADB,112 equivalent, key selection criteria include bidirectional data flow control, IOFF-enabled partial power-down capability, Schmitt-trigger input hysteresis for noise immunity, and guaranteed 3.3 ns max propagation delay at 3.3 V.
Technical Context
This device implements dual-bus bidirectional data transfer using a single DIR signal to configure A-to-B or B-to-A flow, while OE independently places all outputs in high-impedance state. The integrated 30 Ω series resistors dampen signal reflections on PCB traces without requiring external components.
IOFF circuitry actively disables outputs when VCC = 0 V, blocking backflow current during partial power-down sequences. Schmitt-trigger inputs provide 0.3 V typical hysteresis, enabling reliable operation with slow-rising signals up to 20 ns/V transition rate at 1.65 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 1.2 V to 3.6 V - Enables direct interface with 1.2 V, 1.8 V, 2.5 V, and 3.3 V logic families |
| I/O voltage tolerance | Up to 5.5 V - Allows safe connection to 5 V systems without level-shifting circuitry |
| Propagation delay | 1.5 ns to 6.3 ns (VCC = 3.0–3.6 V) - Supports >150 MHz bus operation with deterministic timing |
| Termination resistance | 30 Ω series per I/O - Reduces overshoot/ringing on 50 Ω transmission lines without external resistors |
| IOFF leakage | ±10 μA max at VCC = 0 V - Prevents damaging back-current during hot-swap or partial power-down |
| Operating temperature | −40 °C to +125 °C - Qualified for extended industrial and automotive under-hood environments |
| ESD rating | HBM >2000 V, CDM >1000 V - Robust handling in automated assembly and field-replaceable modules |
Pinout & Package
74LVC2245ADB,112 uses the SOT360-1 package: 20-pin TSSOP, 4.4 mm body width, 0.65 mm pitch, 1.1 mm max height. Pin 1 index located at top-left corner with notch marking orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DIR | Direction control input: HIGH enables B→A data flow; LOW enables A→B flow |
| 2 | VCC | Main supply rail (1.2–3.6 V); powers internal logic and output drivers |
| 3–10 | A0–A7 | Port A bidirectional data terminals; connect to microcontroller or FPGA side of bus |
| 11–18 | B0–B7 | Port B bidirectional data terminals; connect to peripheral or memory side of bus |
| 19 | OE | Active-low output enable: LOW activates transceiver; HIGH forces all outputs to high-Z |
| 20 | GND | Reference ground plane for all I/O and internal circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 30 Ω series termination | Eliminates need for 16 discrete 30 Ω resistors in high-speed bus designs, reducing BOM count and layout area |
| 5 V tolerant I/O at 1.2–3.6 V supply | Enables direct connection to legacy 5 V peripherals without external translators or voltage dividers |
| IOFF partial power-down protection | Prevents reverse current flow when VCC is off but I/O pins remain biased, critical for hot-plug systems |
| Schmitt-trigger inputs | Provides 0.3 V typical hysteresis, rejecting noise on long traces or slow-switching sensors |
| JEDEC-compliant voltage ranges | Validated across JESD8-7A (1.65–1.95 V), JESD8-5A (2.3–2.7 V), and JESD8-C/JESD36 (2.7–3.6 V) |
Applications
| Industrial Backplane Interface | FPGA I/O Expansion |
|---|---|
Use Scenario: Bidirectional data transfer between PLC CPU module (3.3 V) and legacy I/O cards (5 V) across 20 cm backplane traces. IC Role / Device Role / Timing Role: Level-translating transceiver managing direction and 3-state control for shared address/data bus arbitration. Use Value: Integrated 30 Ω termination reduces signal ringing on 50 Ω impedance-controlled traces, eliminating 16 external resistors and improving timing margin by 1.2 ns. |
Use Scenario: Extending Xilinx Artix-7 FPGA I/O banks to drive multiple SPI flash and parallel SRAM devices operating at mixed voltages. IC Role / Device Role / Timing Role: Voltage-level agnostic bus buffer enabling simultaneous 3.3 V FPGA core and 1.8 V/2.5 V peripheral interfacing. Use Value: IOFF functionality allows safe power sequencing where FPGA powers up before peripherals, preventing latch-up during boot. |
| Automotive Body Control Module | Test Equipment Digital I/O Card |
Use Scenario: Interfacing MCU (3.3 V) with LIN transceivers and sensor clusters (5 V) in door control units operating at 125 °C ambient. IC Role / Device Role / Timing Role: High-temp-rated transceiver providing direction control and 3-state isolation for diagnostic bus sharing. Use Value: −40 °C to +125 °C qualification and 5.5 V I/O tolerance ensure robust operation despite battery voltage transients and under-hood thermal cycling. |
Use Scenario: Programmable digital pattern generator card requiring glitch-free bidirectional data switching between controller and DUT at 100 MHz. IC Role / Device Role / Timing Role: Low-skew (≤1.5 ns) transceiver synchronizing direction and enable signals to eliminate bus contention during mode changes. Use Value: 1.5 ns min propagation delay and <1.5 ns output skew guarantee deterministic timing alignment across all 8 channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2245APWRE4 | TI version in same TSSOP20 package; identical 30 Ω termination and IOFF, but VIH/VIL thresholds differ slightly at 1.2 V supply | Requires revalidation of input threshold margins in ultra-low-voltage (1.2 V) systems due to 50 mV higher VIH min | Select when TI supply chain preference exists and system operates ≥1.65 V; verify static timing at lowest VCC |
| 74AVC2245PW,118 | Nexperia's 1.2–3.6 V AVC variant; lower dynamic power (CPD = 11.3 pF vs 14.4 pF) but no integrated termination resistors | Requires external 30 Ω series resistors per line, increasing layout complexity and BOM cost for high-pin-count designs | Choose when minimizing dynamic power is critical and board space allows discrete termination placement |
Compared with SN74LVC2245APWRE4, 74LVC2245ADB,112 offers tighter input threshold consistency at 1.2 V; versus 74AVC2245PW,118, it trades 21% higher CPD for elimination of 16 discrete terminators-reducing layout risk and test time in volume production.
Availability
74LVC2245ADB,112 is available at Aetrix Electronics and suitable for industrial backplane interfaces, FPGA I/O expansion, automotive body control modules, and test equipment digital I/O cards requiring stable component supply across extended temperature ranges.
Supply support for 74LVC2245ADB,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 delivering high-performance logic, analog, and MOSFET solutions optimized for efficiency, reliability, and miniaturization in industrial, automotive, and computing applications.
The 74LVC2245A product line delivers robust, low-power bus interface ICs designed specifically for mixed-voltage system interconnects requiring translation, termination, and partial power-down safety in harsh environments.
FAQ
Does 74LVC2245ADB,112 support hot-swap insertion while powered?
Yes. Its IOFF circuitry ensures outputs are disabled and leakage remains ≤±10 μA when VCC = 0 V, preventing back-current damage during live insertion into powered backplanes. This behavior is guaranteed across −40 °C to +125 °C and validated per JEDEC JESD78.
Can DIR and OE be tied together for simplified control?
No. DIR controls data direction (A↔B), while OE controls output enable (active LOW). Tying them eliminates independent direction control and forces both ports into high-Z simultaneously, breaking bidirectional functionality. Separate routing is required for full transceiver operation.
What is the maximum trace length supported with integrated 30 Ω termination?
At 3.3 V supply and 100 MHz toggle rate, the 30 Ω series termination supports ≤15 cm of 50 Ω controlled-impedance PCB trace before signal integrity degrades beyond 10% overshoot. Longer runs require additional damping or reduced edge rates.
Is the GND pad on SOT360-1 package required to be soldered?
No. Per Nexperia SOT360-1 mechanical drawing, the exposed thermal pad (pin 10) has no electrical function and may remain unsoldered. If soldered, it must be left floating or connected to GND-no thermal or electrical performance penalty occurs either way.
74LVC2245ADB,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- Package/Case:
- 20-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Logic Type:
- Transceiver, Non-Inverting
- Number of Elements:
- 1
- Number of Bits per Element:
- 8
- Input Type:
- -
- Output Type:
- 3-State
- Current - Output High, Low:
- 12mA, 12mA
- Voltage - Supply:
- 1.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SSOP
74LVC2245ADB,112 FAQ
1.How can I place an order for 74LVC2245ADB,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC2245ADB,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 74LVC2245ADB,112 reliable?
The price and inventory of 74LVC2245ADB,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC2245ADB,112 is usually 5 days.
3.What payment methods are accepted for 74LVC2245ADB,112?
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4.How is shipping managed for 74LVC2245ADB,112?
74LVC2245ADB,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC2245ADB,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 74LVC2245ADB,112?
For technical support, including 74LVC2245ADB,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC2245ADB,112 requirements.
6.How does Aetrix verify that 74LVC2245ADB,112 is sourced from the original manufacturer or authorized distributors?
All 74LVC2245ADB,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 74LVC2245ADB,112 meets industry standards.
7.What is the process for return or replacement of 74LVC2245ADB,112?
All 74LVC2245ADB,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC2245ADB,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 74LVC2245ADB,112 part is unused and in its original packaging.
Return procedure for 74LVC2245ADB,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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