My Inquiry
My Account
Nexperia USA Inc. 74LVC4245ADB,118
- Part No.:
- 74LVC4245ADB,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
74LVC4245ADB,118.pdf
- Description:
- IC TRANSLTR BIDIRECTIONAL 24SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,386
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
74LVC4245ADB,118 from Nexperia is an octal dual-supply translating transceiver with 3-state bus-compatible outputs in both directions, designed to interface 3 V and 5 V buses in mixed-voltage systems. It features independent VCCA (1.5–5.5 V) and VCCB (1.5–3.6 V) supplies, DIR-controlled bidirectional data flow, active-low OE for high-impedance isolation, and Schmitt-trigger inputs for noise immunity. Used in industrial control backplanes and legacy-to-modern MCU interconnects.
For engineers reviewing the 74LVC4245ADB,118 datasheet, 74LVC4245ADB,118 pinout, 74LVC4245ADB,118 application, or 74LVC4245ADB,118 equivalent, this device supports voltage translation between 3.3 V microcontrollers and 5 V peripherals while maintaining JEDEC JESD8B compliance, ±24 mA drive capability, and -40 °C to +125 °C operation - critical for embedded system interoperability and bus isolation design.
Technical Context
The 74LVC4245ADB,118 implements a dual-rail CMOS transceiver architecture with separate A-side (5 V bus) and B-side (3 V bus) supply domains. Direction control is managed via DIR input, while OE enables/disables all outputs simultaneously into high-impedance state. VCCA ≥ VCCB under normal operation ensures correct level-shifting behavior and prevents reverse current flow.
Schmitt-trigger inputs on all control and data pins tolerate slow edge rates and improve noise margin. In suspend mode (VCCA = 0 V), the device blocks current between supplies, eliminating leakage paths. The SO24 package (SOT137-1) provides 24-pin leaded plastic small outline construction with 7.5 mm body width and 1.27 mm pitch.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCCA Range | 1.5 V to 5.5 V - powers A-side I/O (5 V bus); supports TTL-level compatibility at 3.3 V |
| VCCB Range | 1.5 V to 3.6 V - powers B-side I/O (3 V bus); enables interfacing with modern low-voltage MCUs |
| Propagation Delay (An→Bn) | 1.0–6.3 ns @ VCCB = 3.3 V - ensures sub-7 ns timing for high-speed 3 V/5 V bus bridging |
| Output Drive Strength | ±24 mA @ VCC = 4.5 V - sufficient to drive standard 50 Ω transmission lines or multiple TTL loads |
| Input Hysteresis | Typ. 0.3 V - Schmitt-trigger action rejects noise on DIR, OE, and data lines in electrically noisy environments |
| Operating Temperature | -40 °C to +125 °C - qualified for extended industrial and automotive-adjacent applications |
| ESD Rating (HBM) | >2000 V - meets ANSI/ESDA/JEDEC JS-001 Class 2, enabling robust handling in manufacturing |
Pinout & Package
74LVC4245ADB,118 is packaged in SO24 (SOT137-1): plastic small outline, 24-lead, 7.5 mm body width, 1.27 mm pitch, with gull-wing leads. Pin 1 index located at top-left corner of package marking side.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VCCA | Supply for A-side (5 V bus) I/O drivers and internal logic; must be ≥ VCCB during operation |
| 2 | DIR | Direction control input: HIGH enables B→A data flow; LOW enables A→B flow |
| 3–10 | A0–A7 | A-side bidirectional data terminals; connect to 5 V bus; tolerate up to 5.5 V inputs |
| 11–13 | GND | Common ground reference for both supply domains; three dedicated pins reduce ground bounce |
| 14–21 | B7–B0 | B-side bidirectional data terminals; connect to 3 V bus; referenced to VCCB |
| 22 | OE | Active-low output enable: LOW enables transceiver; HIGH forces all A/B outputs to high-impedance |
| 23–24 | VCCB | Supply for B-side (3 V bus) I/O drivers; dual VCCB pins improve power integrity |
Key Features
| Feature | Design Value |
|---|---|
| Dual-supply translation | Enables seamless 3.3 V ↔ 5 V communication without external level shifters or resistors |
| 5 V-tolerant inputs/outputs | A-side pins accept 0–5.5 V signals regardless of VCCA setting - simplifies connection to legacy 5 V peripherals |
| Overvoltage-tolerant controls | DIR and OE withstand up to 5.5 V even when VCCA = 0 V - supports hot-swap and suspend-mode safety |
| High-impedance isolation | Outputs enter true 3-state mode with <±0.1 μA OFF-state current - prevents bus contention during reset or sleep |
| JEDEC-compliant operation | Meets JESD8B/JESD36 standards and JESD78 Class 1 latch-up immunity - certified for production-grade reliability |
Applications
| Industrial PLC Backplane Interface | Legacy Peripheral Interfacing |
|---|---|
Use Scenario: Connecting a 3.3 V ARM Cortex-M7 controller to a 5 V RS-485 transceiver and discrete I/O modules on a shared backplane bus. IC Role / Device Role / Timing Role: Bidirectional voltage translator managing data flow direction via DIR, isolating domains during configuration changes using OE. Use Value: Eliminates need for discrete MOSFET translators or resistor networks, reducing BOM count and PCB area while guaranteeing sub-7 ns propagation delay across voltage domains. |
Use Scenario: Integrating vintage 5 V parallel EEPROMs and LCD controllers into a new 3.3 V SoM-based HMI design. IC Role / Device Role / Timing Role: Level-shifting transceiver operating in A→B mode (5 V → 3.3 V) with OE held active only during read/write cycles. Use Value: Enables direct pin-to-pin connection without pull-up resistors or timing penalties - preserves original EEPROM access timing specs while meeting 3.3 V I/O thresholds. |
| Automotive Body Control Module | Test Equipment Signal Conditioning |
Use Scenario: Isolating CAN controller (3.3 V) from 5 V sensor signal conditioning circuitry in a body ECU with extended temperature requirements. IC Role / Device Role / Timing Role: Voltage-translating buffer with DIR fixed for unidirectional sensing path and OE used for diagnostic bus shutdown. Use Value: Maintains signal integrity across supply domains while supporting -40 °C to +125 °C operation and >2000 V HBM ESD protection for under-hood reliability. |
Use Scenario: Adapting FPGA I/O banks (3.3 V) to legacy 5 V test instrumentation interfaces (e.g., GPIB, parallel port) in automated test systems. IC Role / Device Role / Timing Role: Reconfigurable bus transceiver allowing dynamic switching between stimulus and response modes via DIR, with OE synchronized to test sequence states. Use Value: Provides deterministic, low-skew (<1.5 ns) bidirectional translation - critical for timing-critical boundary-scan and functional test vector delivery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-supply translating transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC4245APWRE4 | TSSOP24 package (SOT355-1); 4.4 mm body width; 0.65 mm pitch; slightly higher thermal resistance than SO24 | Better PCB space efficiency but lower power dissipation margin at full 24 mA load; requires tighter layout for thermal management | Select for compact designs where board area is constrained and ambient temperature remains ≤85 °C |
| 74AVC4245BQ,115 | DHVQFN24 package (SOT815-1); 3.5 × 5.5 mm footprint; no leads; enhanced thermal performance; supports VCCA/VCCB down to 1.2 V | Enables ultra-low-voltage operation (1.2–3.6 V) and superior heat dissipation - suitable for dense, thermally limited applications | Choose when migrating to sub-1.8 V logic families or when junction temperature must stay below 110 °C under continuous load |
Compared with SN74LVC4245APWRE4 and 74AVC4245BQ,115, the 74LVC4245ADB,118 offers optimal mechanical robustness and thermal margin in through-hole-compatible SO24 packaging, making it preferred for industrial field equipment where vibration resistance and long-term solder joint reliability are prioritized over miniaturization.
Availability
74LVC4245ADB,118 is available at Aetrix Electronics and suitable for industrial PLC backplanes, automotive body control modules, legacy peripheral integration, and test equipment signal conditioning requiring stable component supply across extended temperature ranges and mixed-voltage environments.
Supply support for 74LVC4245ADB,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 specializing in high-volume, high-reliability logic, analog, and discrete components, with leadership in automotive-qualified and industrial-grade solutions.
The 74LVC4245A product line delivers robust dual-supply voltage translation for mixed-voltage system integration - engineered specifically for industrial automation, test instrumentation, and embedded control applications demanding JEDEC compliance and extended temperature operation.
FAQ
Can 74LVC4245ADB,118 operate with VCCA = 3.3 V and VCCB = 1.8 V?
No. Per datasheet Section 8 (Recommended Operating Conditions), VCCA must be ≥ VCCB at all times during normal operation. With VCCB = 1.8 V, VCCA must be set to at least 1.8 V - but the LVC family's minimum VCCA is 1.5 V. However, the device is not characterized or guaranteed for VCCA = VCCB = 1.8 V; its specified dual-supply translation function requires VCCA ≥ VCCB and VCCA ≥ 3.0 V for reliable 5 V bus compatibility.
What happens if OE is left floating?
Leaving OE floating violates recommended operating conditions and risks undefined output states. The pin has no internal pull-up/down; floating OE may drift to intermediate voltage, causing partial turn-on of output drivers and excessive ICC or bus contention. Always tie OE to GND (active) or VCCA (inactive) via a 10 kΩ resistor or controlled logic signal.
Is DIR required to be driven actively, or can it be hardwired?
DIR can be hardwired to VCCA (for B→A mode) or GND (for A→B mode) depending on unidirectional data flow needs. No timing constraints apply when DIR is static. Hardwiring eliminates control logic overhead and reduces pin count on resource-constrained MCUs - confirmed by functional table (Table 3) and application note AN10699.
Does 74LVC4245ADB,118 support hot insertion when VCCA = 0 V?
Yes. When VCCA = 0 V, the device enters suspend mode: no current path exists between VCCA and VCCB, and all outputs remain in high-impedance state regardless of DIR/OE. This allows safe insertion into a live 3 V bus (VCCB powered) without damaging the 5 V domain - verified in Section 1 (General Description) and Table 4 (Limiting Values).
74LVC4245ADB,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74LVC
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Translator Type:
- -
- Channel Type:
- -
- Number of Circuits:
- -
- Channels per Circuit:
- -
- Voltage - VCCA:
- -
- Voltage - VCCB:
- -
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- -
- Data Rate:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-SSOP (0.209", 5.30mm Width)
74LVC4245ADB,118 FAQ
1.How can I place an order for 74LVC4245ADB,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC4245ADB,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 74LVC4245ADB,118 reliable?
The price and inventory of 74LVC4245ADB,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC4245ADB,118 is usually 5 days.
3.What payment methods are accepted for 74LVC4245ADB,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC4245ADB,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC4245ADB,118?
74LVC4245ADB,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC4245ADB,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 74LVC4245ADB,118?
For technical support, including 74LVC4245ADB,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC4245ADB,118 requirements.
6.How does Aetrix verify that 74LVC4245ADB,118 is sourced from the original manufacturer or authorized distributors?
All 74LVC4245ADB,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 74LVC4245ADB,118 meets industry standards.
7.What is the process for return or replacement of 74LVC4245ADB,118?
All 74LVC4245ADB,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC4245ADB,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 74LVC4245ADB,118 part is unused and in its original packaging.
Return procedure for 74LVC4245ADB,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
74LVC4245ADB,118 Tags
-
74LVC1T45GW,125
Nexperia USA Inc.
-
74LVCH2T45DC,125
Nexperia USA Inc.
-
SN74LVC1T45DBVR
Texas Instruments
-
SN74LVC1T45DRLR
Texas Instruments
-
SN74LVC1T45DPKR
Texas Instruments
-
SN74LVC2T45DCTR
Texas Instruments
-
74LVC2T45GT,115
Nexperia USA Inc.
-
SN74LVC1T45YZPR
Texas Instruments
-
LSF0102DCUR
Texas Instruments
-
SN74LVC1T45DCKR
Texas Instruments
-
TXS0102DCTR
Texas Instruments
-
FXLP34P5X
onsemi
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
