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NXP Semiconductors 74LVC623ADB,118
- Part No.:
- 74LVC623ADB,118
- Manufacturer:
- NXP Semiconductors
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74LVC623ADB,118.pdf
- Description:
- IC TXRX NON-INVERT 3.6V 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,374
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Product details
Overview
74LVC623ADB,118 from NXP Semiconductors is an octal non-inverting 3-state bus transceiver with dual active-low enable inputs (OEAB and OEBA), enabling bidirectional asynchronous data flow between two 8-bit buses. It operates from 1.2 V to 3.6 V supply, tolerates 5.5 V on outputs when disabled, and supports mixed-voltage interfacing between 3.3 V and 5 V logic domains in industrial control backplanes.
For engineers reviewing the 74LVC623ADB,118 datasheet, 74LVC623ADB,118 pinout, 74LVC623ADB,118 application, or 74LVC623ADB,118 equivalent, this device delivers deterministic bus isolation, dual-enable data latching capability, and JEDEC-compliant voltage-level translation across −40 °C to +125 °C ambient operation - critical for high-reliability embedded interconnect design.
Technical Context
The 74LVC623ADB,118 implements a dual-control transceiver architecture where OEAB enables A→B transmission and OEBA enables B→A transmission; simultaneous assertion of both enables transparent bidirectional latching. Its CMOS input structure accepts 3.3 V or 5 V logic levels while maintaining compatibility with TTL thresholds.
With 5 V-tolerant I/O, 1.2 V minimum VCC support, and guaranteed operation up to +125 °C, the device targets mixed-supply systems requiring robust level-shifting without external biasing. ESD protection exceeds HBM 2000 V, MM 200 V, and CDM 1000 V per JESD22 standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.2 V to 3.6 V - supports ultra-low-voltage microcontroller interfaces and legacy 3.3 V systems |
| Input Voltage Tolerance | Up to 5.5 V - allows direct connection to 5 V logic without level shifters |
| Propagation Delay (VCC = 3.3 V) | 1.0 ns to 5.2 ns - ensures sub-6 ns timing margin for 100 MHz bus cycles |
| Enable/Disable Time (VCC = 3.3 V) | 1.0 ns to 8.5 ns - guarantees fast bus arbitration and dynamic isolation control |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood automotive modules and industrial PLCs |
| Output Drive Strength | ±24 mA at 3.0 V - sufficient to drive 50 pF loads with <6.5 ns rise/fall times |
| Power Dissipation Capacitance | 18.8 pF at 3.0–3.6 V - enables accurate dynamic power estimation in high-speed switching |
Pinout & Package
74LVC623ADB,118 uses the SSOP20 (SOT339-1) package: plastic shrink small outline, 20 leads, 5.3 mm body width, 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OEAB | Active-low output enable for A→B direction; asserts Bn outputs when LOW |
| 19 | OEBA | Active-low output enable for B→A direction; asserts An outputs when LOW |
| 2–9 | A[0:7] | Bidirectional data terminals for bus A; function as inputs or outputs depending on OE state |
| 11–18 | B[0:7] | Bidirectional data terminals for bus B; function as inputs or outputs depending on OE state |
| 10 | GND | Ground reference (0 V) for all internal circuitry and I/O |
| 20 | VCC | Primary supply voltage (1.2–3.6 V); powers core logic and output drivers |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent enable control | OEAB and OEBA allow selective unidirectional or simultaneous bidirectional bus coupling - essential for memory-mapped I/O arbitration |
| 5 V-tolerant I/O with 1.2 V VCC | Enables direct interface between legacy 5 V peripherals and modern low-voltage SoCs without external translators |
| High-impedance OFF-state at VCC = 0 V | Prevents back-powering of powered-down subsystems - critical for hot-swap and power sequencing safety |
| JEDEC-compliant voltage standards | Meets 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 voltage bins |
| Industrial temperature range | −40 °C to +125 °C operation validated per JEDEC JESD22-A104 - suitable for extended-life embedded deployments |
Applications
| Industrial Backplane Interconnect | Microcontroller Bus Expansion |
|---|---|
|
Use Scenario: Isolating and translating data between a 3.3 V ARM-based main controller and legacy 5 V sensor interface cards in modular PLC racks. IC Role / Device Role / Timing Role: Bidirectional level-shifting transceiver managing synchronous parallel bus handshaking with programmable enable timing. Use Value: Eliminates need for discrete level-shifters and reduces PCB layer count by consolidating eight channels in one SSOP20 footprint. |
Use Scenario: Expanding GPIO and address/data bus lines from an MCU with limited native I/O to drive multiple peripheral ICs on a compact industrial HMI board. IC Role / Device Role / Timing Role: Octal bus buffer providing controlled drive strength and propagation delay matching for reliable 20 MHz parallel interface timing. Use Value: Enables deterministic setup/hold timing margins via matched tpd (1.0–5.2 ns) and precise enable/disable skew (<1.5 ns). |
| Automotive Body Control Module | Test Equipment Data Acquisition |
|
Use Scenario: Interfacing a 3.3 V CAN controller MCU with 5 V analog front-end ASICs in a vehicle body control unit operating at 125 °C ambient. IC Role / Device Role / Timing Role: High-temp-rated transceiver performing voltage translation and bus isolation during sleep/wake transitions. Use Value: Maintains functional integrity across full automotive temperature range without derating - validated to +125 °C with no performance loss. |
Use Scenario: Routing parallel digital test patterns between FPGA-based pattern generators and DUTs with mismatched supply voltages in automated test equipment. IC Role / Device Role / Timing Role: Precision-controlled bus switch enabling synchronized capture of multi-channel digital waveforms with sub-ns timing correlation. Use Value: Delivers <1.5 ns output skew (tsk(o)) and <6.5 ns max tpd - critical for time-aligned multi-channel sampling accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar octal transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC623APWRE4 | TSSOP20 package (SOT360-1), identical electrical specs and pinout; 4.4 mm body width vs. 5.3 mm | Higher-density PCB layouts where footprint area is constrained; same thermal profile but lower Ptot derating threshold above 60 °C | Select when board space optimization outweighs mechanical compatibility with existing SSOP20 footprints |
| 74LVC623AD,118 | SO20 package (SOT163-1), 7.5 mm body width; otherwise identical functionality, timing, and ratings | Legacy designs requiring through-hole-compatible SOIC footprint or higher thermal mass for passive cooling | Choose for ease of rework, compatibility with SOIC sockets, or improved heat dissipation in low-airflow enclosures |
Compared with SN74LVC623APWRE4 and 74LVC623AD,118, the 74LVC623ADB,118 offers optimal balance of compactness (5.3 mm SSOP), thermal performance (5.5 mW/K derating above 60 °C), and mechanical compatibility with mid-density industrial PCBs - making it the preferred choice for new designs prioritizing size and reliability trade-offs.
Availability
74LVC623ADB,118 is available at Aetrix Electronics and suitable for industrial automation backplanes, automotive body control modules, and test equipment data acquisition systems requiring stable component supply across extended temperature ranges and mixed-voltage environments.
Supply support for 74LVC623ADB,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
NXP Semiconductors is a global semiconductor leader specializing in secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in logic, interface, and power management ICs.
The 74LVC623ADB,118 belongs to NXP's LVC (Low-Voltage CMOS) logic family, designed specifically for energy-efficient, high-speed bidirectional bus interfacing in mixed-supply embedded systems.
FAQ
What is the maximum supply voltage rating for 74LVC623ADB,118?
The absolute maximum supply voltage (VCC) for 74LVC623ADB,118 is +6.5 V, but recommended operation is strictly 1.2 V to 3.6 V per Table 5. Exceeding 3.6 V risks violating JEDEC compliance and may degrade long-term reliability - always limit VCC to 3.6 V in production designs using 74LVC623ADB,118.
Can 74LVC623ADB,118 interface directly with 5 V microcontrollers?
Yes - 74LVC623ADB,118 features 5 V-tolerant inputs and outputs, allowing direct connection to 5 V logic even when powered at 1.2 V to 3.6 V. When disabled, outputs tolerate up to 5.5 V, enabling safe interfacing with 5 V peripherals without external level shifters in either direction of the 74LVC623ADB,118 transceiver.
How does the dual-enable function of 74LVC623ADB,118 enable data latching?
When both OEAB and OEBA are asserted LOW simultaneously, the 74LVC623ADB,118 enters bidirectional latching mode: each output reinforces its corresponding input, holding bus states even when all external drivers are in high-impedance. This behavior is explicitly defined in Table 3's function table and enables transparent data storage without additional flip-flops in the 74LVC623ADB,118 signal path.
What is the thermal derating behavior of 74LVC623ADB,118 above 60 °C?
For the SSOP20 package (SOT339-1), total power dissipation (Ptot) derates linearly at 5.5 mW/K above 60 °C, per Table 4 footnote [3]. At +125 °C ambient, maximum allowable Ptot drops to ~125 mW - designers must verify junction temperature using θJA and actual power draw to ensure 74LVC623ADB,118 remains within safe operating limits.
Is 74LVC623ADB,118 automotive-qualified?
No - 74LVC623ADB,118 is not automotive-qualified. While it operates across −40 °C to +125 °C, it lacks AEC-Q100 qualification, automotive-specific testing, or guaranteed PPAP documentation. For automotive applications, use only parts explicitly marked "AEC-Q100 qualified" - 74LVC623ADB,118 is intended for industrial, computing, and test equipment use cases.
74LVC623ADB,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- 74LVC
- Package/Case:
- 20-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 24mA, 24mA
- Voltage - Supply:
- 1.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-SSOP
74LVC623ADB,118 FAQ
1.How can I place an order for 74LVC623ADB,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC623ADB,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 74LVC623ADB,118 reliable?
The price and inventory of 74LVC623ADB,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC623ADB,118 is usually 5 days.
3.What payment methods are accepted for 74LVC623ADB,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC623ADB,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC623ADB,118?
74LVC623ADB,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC623ADB,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 74LVC623ADB,118?
For technical support, including 74LVC623ADB,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC623ADB,118 requirements.
6.How does Aetrix verify that 74LVC623ADB,118 is sourced from the original manufacturer or authorized distributors?
All 74LVC623ADB,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 74LVC623ADB,118 meets industry standards.
7.What is the process for return or replacement of 74LVC623ADB,118?
All 74LVC623ADB,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC623ADB,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 74LVC623ADB,118 part is unused and in its original packaging.
Return procedure for 74LVC623ADB,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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