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Diodes Incorporated 74LVC32AT14-13
- Part No.:
- 74LVC32AT14-13
- Manufacturer:
- Diodes Incorporated
- Category:
- Gates and Inverters
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74LVC32AT14-13.pdf
- Description:
- IC GATE OR 4CH 2-INP 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,496
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Product details
Overview
74LVC32AT14-13 from Diodes Incorporated is a quadruple 2-input OR gate logic IC in TSSOP-14 package, operating from 1.65V to 3.6V supply, with 5.5V-tolerant inputs, IOFF partial power-down protection, and 24mA output sink capability at 3.3V. It enables voltage translation and signal isolation in mixed-voltage digital systems such as notebook I/O expansion and peripheral interface control.
For engineers reviewing the 74LVC32AT14-13 datasheet, 74LVC32AT14-13 pinout, 74LVC32AT14-13 application, or 74LVC32AT14-13 equivalent, this page delivers verified functional identity, confirmed TSSOP-14 pin mapping, real-world level-shifting use cases, and validated alternative parts with documented electrical and packaging differences.
Technical Context
The 74LVC32AT14-13 implements four independent positive-logic OR gates (Y = A + B) using advanced CMOS process technology. Its IOFF circuit actively disables outputs during power-down to prevent backflow current, and its 5.5V input tolerance allows interfacing between 3.3V logic and legacy 5V subsystems without external level shifters.
Propagation delay is specified down to 2.5 ns (typ.) at 3.3V, with guaranteed operation across –40°C to +125°C ambient. Input thresholds scale with VCC (VIH = 0.65×VCC min), supporting robust noise margins in low-voltage embedded control and portable computing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Four independent 2-input OR gates (Y = A + B) |
| Supply Voltage Range | 1.65V to 3.6V - supports dual-rail 1.8V/3.3V system integration |
| Input Voltage Tolerance | Up to 5.5V - enables direct connection to 5V signals without clamping diodes |
| Output Drive (Sink) | 24mA at VCC = 3.3V - sufficient to drive standard TTL loads or multiple CMOS inputs |
| IOFF Leakage | Max 20μA at 3.6V - ensures safe bus hold and hot-swap compatibility |
| Propagation Delay | 4.1ns max at 3.3V - meets timing requirements for sub-100MHz synchronous logic |
| ESD Protection | 2000V HBM - exceeds JEDEC JESD22-A114 for board-level handling robustness |
Pinout & Package
TSSOP-14 package: 4.4mm × 5.0mm body, 0.65mm pitch, 1.0mm max height, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 9, 12 | Input A (Gate 1–4) | Active-high logic input; 5.5V tolerant; accepts 1.65–5.5V swing |
| 2, 5, 10, 13 | Input B (Gate 1–4) | Second active-high input per gate; identical voltage tolerance and threshold |
| 3, 6, 8, 11 | Output Y (Gate 1–4) | Push-pull CMOS output; IOFF-enabled during VCC = 0V |
| 7 | GND | Ground reference for all logic and power domains |
| 14 | VCC | Primary supply rail (1.65–3.6V); powers internal logic and output stage |
Key Features
| Feature | Design Value |
|---|---|
| Partial Power-Down (IOFF) | Automatically disables outputs when VCC = 0V, preventing back-current into powered subsystems |
| Voltage Translation Capability | 5.5V-tolerant inputs allow 3.3V device to accept 5V signals - eliminates discrete level-shifters |
| Low Dynamic Power | Typical Cpd = 12.4pF at 3.3V - reduces switching current and EMI in high-frequency I/O paths |
| Wide Temperature Range | Specified from –40°C to +125°C ambient - suitable for industrial and automotive under-hood environments |
Applications
| PC I/O Expansion | Notebook Peripheral Control |
|---|---|
Use Scenario: OR-ing of multiple interrupt request lines before routing to southbridge or EC. IC Role / Device Role / Timing Role: Signal aggregation logic with sub-5ns propagation ensuring deterministic interrupt latency. Use Value: Eliminates need for discrete diode-OR networks while maintaining full 3.3V logic compatibility and 5V-safe wake-up signaling. | Use Scenario: Enabling USB hub reset or SD card detect logic in battery-powered ultrabooks. IC Role / Device Role / Timing Role: Level-translating OR gate driving 3.3V enable lines from mixed 1.8V/5V sensor or switch inputs. Use Value: IOFF prevents leakage during suspend-to-RAM, preserving battery life and enabling clean power sequencing. |
| Industrial PLC I/O Module | Automotive Infotainment Interface |
Use Scenario: Combining multiple safety interlock signals before feeding to watchdog timer input. IC Role / Device Role / Timing Role: Fail-safe combinatorial logic with guaranteed operation at –40°C and 125°C junction temperature. Use Value: 250mA latch-up immunity and 2kV HBM ESD rating ensure reliability in electrically noisy factory-floor environments. | Use Scenario: Merging CAN transceiver fault flags and display backlight timeout signals in head unit design. IC Role / Device Role / Timing Role: Non-inverting logic gate with 5.5V-tolerant inputs accepting signals from legacy 5V analog front-ends. Use Value: Enables reuse of existing 5V sensor interfaces while powering core logic from 3.3V domain - no additional voltage translators required. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quadruple 2-input OR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC32APWRE4 (TI) | TSSOP-14, same VCC range (1.65–3.6V), but IOFF not explicitly specified; max tPD = 4.5ns at 3.3V | Lacks documented IOFF - unsuitable for hot-swap or partial-power-down systems requiring back-current prevention | Select only if IOFF is not required and TI supply chain preference applies |
| 74LVC32ADTR2G (ON Semi) | TSSOP-14, identical IOFF and 5.5V input tolerance; slightly higher ICC (max 50μA vs 40μA) | Same functional behavior and pinout; minor quiescent current difference has negligible impact on battery-powered designs | Drop-in replacement with identical logic, timing, and protection features - verified compatible in Diodes' cross-reference matrix |
Compared with SN74LVC32APWRE4 and 74LVC32ADTR2G, the 74LVC32AT14-13 provides guaranteed IOFF operation critical for power-gated systems, while matching the latter's full functional equivalence and surpassing both in ESD robustness (2000V HBM vs 1500V typical).
Availability
74LVC32AT14-13 is available at Aetrix Electronics and suitable for PC I/O expansion, notebook peripheral control, and industrial PLC I/O modules requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for 74LVC32AT14-13 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
Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability, energy-efficient components for computing, industrial, and automotive markets.
The 74LVC32AT14-13 belongs to Diodes' LVC logic family - designed specifically for low-voltage, mixed-signal interface applications demanding voltage translation, partial power-down resilience, and extended temperature operation.
FAQ
What is the maximum input voltage the 74LVC32AT14-13 can safely accept?
The 74LVC32AT14-13 accepts input voltages up to 5.5V regardless of VCC level, as confirmed in the Absolute Maximum Ratings table and reinforced by the "Inputs or outputs accept up to 5.5V" feature statement. This allows direct interfacing with 5V signals while powered from 1.65–3.6V, eliminating external level-shifting components in mixed-voltage designs.
Does the 74LVC32AT14-13 support partial power-down mode, and how is it implemented?
Yes - the device implements IOFF (power-off isolation) circuitry that automatically disables all outputs when VCC = 0V. As stated in the datasheet, this prevents damaging back-current flow from live buses into the unpowered IC. The IOFF function is intrinsic to the silicon design and requires no external control signals or configuration.
Can the 74LVC32AT14-13 be used in automotive applications?
The base 74LVC32AT14-13 is not AEC-Q100 qualified; however, Diodes offers automotive-grade variants (e.g., 74LVC32AT14-13Q) with PPAP documentation, IATF 16949 manufacturing, and extended qualification testing. For non-safety-critical infotainment or body-control functions where AEC-Q100 is not mandated, the commercial version may be used subject to system-level validation.
What is the thermal resistance (θJA) for the TSSOP-14 package of this device?
The datasheet specifies θJA = 159°C/W for the TSSOP-14 package under standard test conditions (FR-4 PCB, 2oz copper, minimum recommended pad layout). This value assumes natural convection cooling and is used to calculate junction temperature rise (TJ = TA + (θJA × PD)) for thermal design verification in compact layouts.
74LVC32AT14-13 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Diodes Incorporated
- Series:
- 74LVC
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- OR Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 1.65V ~ 3.6V
- Current - Quiescent (Max):
- 40 µA
- Current - Output High, Low:
- 24mA, 24mA
- Input Logic Level - Low:
- 0.7V ~ 0.8V
- Input Logic Level - High:
- 1.7V ~ 2V
- Max Propagation Delay @ V, Max CL:
- 4.1ns @ 3.3V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
74LVC32AT14-13 FAQ
1.How can I place an order for 74LVC32AT14-13 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74LVC32AT14-13 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 74LVC32AT14-13 reliable?
The price and inventory of 74LVC32AT14-13 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74LVC32AT14-13 is usually 5 days.
3.What payment methods are accepted for 74LVC32AT14-13?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74LVC32AT14-13 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74LVC32AT14-13?
74LVC32AT14-13 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74LVC32AT14-13 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 74LVC32AT14-13?
For technical support, including 74LVC32AT14-13 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74LVC32AT14-13 requirements.
6.How does Aetrix verify that 74LVC32AT14-13 is sourced from the original manufacturer or authorized distributors?
All 74LVC32AT14-13 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 74LVC32AT14-13 meets industry standards.
7.What is the process for return or replacement of 74LVC32AT14-13?
All 74LVC32AT14-13 units undergo pre-shipment inspection (PSI). If there is an issue with 74LVC32AT14-13, 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 74LVC32AT14-13 part is unused and in its original packaging.
Return procedure for 74LVC32AT14-13:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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