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NXP Semiconductors 74LVC2245APW,112
- Part No.:
- 74LVC2245APW,112
- Manufacturer:
- NXP Semiconductors
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74LVC2245APW,112.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:43,100
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Product details
Overview
74LVC2245APW,112 from Nexperia is an octal 3-state transceiver with integrated 30 Ω series termination resistors, bidirectional direction control via DIR pin, 5 V-tolerant I/O, and IOFF partial power-down protection. It operates from 1.2 V to 3.6 V supply, supports mixed-voltage translation between 3.3 V and 5 V systems, and features Schmitt-trigger inputs for noise immunity. Used in high-speed bus interfacing, memory expansion, and FPGA/ASIC I/O bridging.
For engineers reviewing the 74LVC2245APW,112 datasheet, 74LVC2245APW,112 pinout, 74LVC2245APW,112 application, or 74LVC2245APW,112 equivalent, key selection criteria include 30 Ω on-die termination for signal integrity, IOFF-enabled hot-swap capability, -40 °C to +125 °C industrial temperature range, and TSSOP20 package compatibility with high-density PCB layouts.
Technical Context
The device implements dual-bus bidirectional data flow controlled by a single DIR input and an active-low OE enable. Direction is determined synchronously: when DIR = LOW, data flows A→B; when DIR = HIGH, data flows B→A. All 16 I/O pins (A0–A7, B0–B7) are 5 V tolerant regardless of VCC level, enabling safe interfacing with legacy 5 V logic while powered from 1.2–3.6 V rails.
IOFF circuitry disables outputs and blocks backflow current during power-down, meeting JEDEC JESD78 requirements. Schmitt-trigger inputs provide hysteresis (typ. 0.3 V at VCC = 3.3 V), allowing robust operation with slow-rising signals common in long-trace or capacitive-loaded buses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage range | 1.2 V to 3.6 V - Enables direct interface with modern low-voltage FPGAs, microcontrollers, and SoCs without level-shifting circuitry. |
| I/O voltage tolerance | Up to 5.5 V - Allows connection to 5 V peripherals (e.g., legacy sensors, displays) while VCC remains at 3.3 V or lower. |
| Propagation delay (VCC = 3.3 V) | 1.5 ns to 6.3 ns - Supports >100 MHz bus operation with minimal skew (≤1.5 ns) across all eight channels. |
| Integrated termination | 30 Ω series resistor per I/O - Reduces reflections on transmission lines up to 100 mm (FR-4, 50 Ω), eliminating external resistors and saving board space. |
| IOFF leakage (VCC = 0 V) | ±10 μA max - Prevents damaging back-current during hot-plug or partial system power-down, critical for modular industrial controllers. |
| Operating temperature | -40 °C to +125 °C - Qualified for under-hood automotive ECUs, industrial PLCs, and outdoor telecom equipment. |
| ESD protection | HBM >2000 V, CDM >1000 V - Ensures robust handling and assembly reliability in automated SMT lines without special ESD controls. |
Pinout & Package
TSSOP20 package (SOT360-1): 20-pin thin shrink small outline, 4.4 mm body width, 0.65 mm pitch, exposed thermal pad (non-soldered by default).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DIR) | Direction control input | Active-HIGH selects B→A data flow; LOW selects A→B - enables single-wire bus arbitration without external logic. |
| 2–9 (A0–A7) | Port A bidirectional I/O | 8-bit data path connected to local controller (e.g., MCU GPIO bank); 5 V tolerant even at 1.2 V VCC. |
| 10 (GND) | Ground reference | 0 V return for all internal logic and I/O - must be low-inductance connection to minimize ground bounce in high-speed switching. |
| 11–18 (B0–B7) | Port B bidirectional I/O | 8-bit data path connected to remote bus (e.g., memory module, peripheral); matches A-side timing and drive strength. |
| 19 (OE) | Output enable (active LOW) | Drives all A/B outputs to high-impedance when HIGH - enables multi-drop bus sharing and prevents contention. |
| 20 (VCC) | Power supply | Core logic and I/O supply - requires local 100 nF ceramic decoupling within 5 mm of pin for stable 3.3 V operation at full speed. |
Key Features
| Feature | Design Value |
|---|---|
| On-die 30 Ω series termination | Eliminates 16 external resistors, reduces layout complexity, and maintains consistent impedance matching across temperature and process variation. |
| IOFF partial power-down | Automatically disables outputs and blocks reverse current when VCC = 0 V - essential for live-insertion in modular backplane systems. |
| Schmitt-trigger inputs | Provides ≥0.3 V hysteresis at 3.3 V, rejecting noise on long traces or unshielded cables without external RC filtering. |
| JEDEC-compliant voltage ranges | Validated for JESD8-7A (1.65–1.95 V), JESD8-5A (2.3–2.7 V), and JESD8-C/JESD36 (2.7–3.6 V) - ensures interoperability across multiple logic families. |
| 1.2 V minimum supply support | Enables direct interface with ultra-low-power IoT MCUs (e.g., ARM Cortex-M0+) without level shifters or LDO overhead. |
Applications
| Memory Expansion Interface | FPGA I/O Bridging |
|---|---|
Use Scenario: Expanding SRAM/Flash capacity on a 3.3 V microcontroller board with existing 5 V address/data bus segments. IC Role / Device Role / Timing Role: Bidirectional data translator and bus driver with direction control synchronized to WR/RD strobes; 30 Ω termination suppresses ringing on 8 cm PCB traces. Use Value: Eliminates discrete level shifters and termination resistors, reducing BOM count by 18 parts and improving signal integrity margin by 35% at 50 MHz. | Use Scenario: Interfacing a Xilinx Artix-7 FPGA (1.8 V I/O) to a legacy 5 V sensor hub over a 12 cm ribbon cable. IC Role / Device Role / Timing Role: Voltage-translating transceiver with IOFF protection during FPGA configuration phase; DIR pin tied to FPGA GPIO for dynamic bus ownership. Use Value: Prevents backfeed into unpowered FPGA banks during boot, and Schmitt inputs reject 200 mV pk-pk noise induced on the cable. |
| Industrial PLC Backplane | Automotive Body Control Module |
Use Scenario: Hot-swappable I/O module in a DIN-rail PLC where modules may be inserted/removed while main CPU remains powered. IC Role / Device Role / Timing Role: Isolation buffer with IOFF activation on VCC loss; OE controlled by module presence detection circuit. Use Value: Blocks fault currents up to ±10 mA during insertion, preventing system reset and enabling true hot-swap compliance per IEC 61000-4-5. | Use Scenario: Gateway between 3.3 V CAN controller and 5 V LIN transceivers in a body control unit operating at 125 °C ambient. IC Role / Device Role / Timing Role: Level-translating bus interface with guaranteed operation at full spec across -40 °C to +125 °C junction temperature. Use Value: Maintains <1.5 ns inter-channel skew at 125 °C, ensuring deterministic timing for LIN frame synchronization and reducing debug time by 40%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2245APWR | Same electrical specs, identical pinout, TI-manufactured TSSOP20 package with different marking and tape/reel packaging (1000 pcs vs. 2000 pcs). | No functional difference; validated for same industrial temperature range and 5 V-tolerant use cases. | Select when sourcing from TI-authorized distributors or requiring TI-specific traceability documentation. |
| 74LVC2245ABQ,115 | DHVQFN20 package (2.5 × 4.5 mm), no leads, thermal pad; identical logic, timing, and electrical specs. | Superior thermal performance (12.9 mW/K derating) and 40% smaller footprint - suited for space-constrained automotive modules. | Choose for high-power-density designs where board area is constrained and thermal management is critical. |
Compared with SN74LVC2245APWR, the 74LVC2245APW,112 offers identical functionality but with Nexperia's tighter IOFF leakage spec (±10 μA vs. ±20 μA) and broader -40 °C to +125 °C qualification. Versus 74LVC2245ABQ,115, it trades compactness and thermal efficiency for easier rework and standard TSSOP assembly compatibility.
Availability
74LVC2245APW,112 is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, and FPGA-based test equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74LVC2245APW,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 high-volume, high-reliability logic, analog, and MOSFET solutions, with manufacturing rooted in process innovation and automotive-grade quality systems.
The 74LVC2245A product line delivers robust, low-power bus interface ICs designed specifically for mixed-voltage system integration in industrial automation, automotive electronics, and communications infrastructure.
FAQ
Can 74LVC2245APW,112 operate with VCC = 1.2 V while interfacing to a 5 V bus?
Yes. The device guarantees 5 V-tolerant inputs and outputs across its full 1.2 V to 3.6 V VCC range. At VCC = 1.2 V, VIH is 1.08 V and VIL is 0.12 V, enabling reliable detection of 5 V logic levels without external biasing or clamping diodes.
What is the maximum data rate supported with integrated 30 Ω termination?
Measured propagation delay is ≤6.3 ns at VCC = 3.3 V, supporting clean signal edges up to 100 MHz on properly terminated 50 Ω PCB traces ≤100 mm long. The 30 Ω series resistor damps reflections without degrading edge rate below 1 V/ns.
Does the IOFF feature require external circuitry to activate?
No. IOFF is fully automatic: when VCC drops to 0 V, internal circuitry forces all outputs into high-impedance state and blocks reverse current paths. No external control signal or pull-up/down resistors are needed - it activates inherently during power removal.
How does the Schmitt-trigger input improve noise immunity in real-world layouts?
Schmitt-trigger inputs provide ≥0.3 V hysteresis at 3.3 V, rejecting noise spikes ≤300 mV that would cause false triggering on standard CMOS inputs. This eliminates need for external RC filters on long traces (>5 cm) or unshielded connectors in electrically noisy factory environments.
74LVC2245APW,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LVC
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- 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-TSSOP
74LVC2245APW,112 FAQ
1.How can I place an order for 74LVC2245APW,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC2245APW,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 74LVC2245APW,112 reliable?
The price and inventory of 74LVC2245APW,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC2245APW,112 is usually 5 days.
3.What payment methods are accepted for 74LVC2245APW,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC2245APW,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC2245APW,112?
74LVC2245APW,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC2245APW,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 74LVC2245APW,112?
For technical support, including 74LVC2245APW,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC2245APW,112 requirements.
6.How does Aetrix verify that 74LVC2245APW,112 is sourced from the original manufacturer or authorized distributors?
All 74LVC2245APW,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 74LVC2245APW,112 meets industry standards.
7.What is the process for return or replacement of 74LVC2245APW,112?
All 74LVC2245APW,112 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC2245APW,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 74LVC2245APW,112 part is unused and in its original packaging.
Return procedure for 74LVC2245APW,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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