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Nexperia USA Inc. 74HCT2G32DC,125
- Part No.:
- 74HCT2G32DC,125
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 8-VFSOP (0.091", 2.30mm Width)
- Datasheet:
-
74HCT2G32DC,125.pdf
- Description:
- IC GATE OR 2CH 2-INP 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,122
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Product details
Overview
74HCT2G32DC,125 from Nexperia is a dual 2-input OR gate logic IC operating at 4.5 V to 5.5 V supply, delivering TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max), propagation delay of 13–36 ns over -40 °C to +125 °C, and low static current (ICC ≤ 20 μA). It serves as a level-translating combinational logic element in digital control signal routing, bus arbitration, and status merging circuits.
For engineers reviewing the 74HCT2G32DC,125 datasheet, 74HCT2G32DC,125 pinout, 74HCT2G32DC,125 application, or 74HCT2G32DC,125 equivalent, key selection criteria include TTL-level input compatibility, VSSOP8 package footprint constraints, guaranteed operation up to +125 °C, and dual-gate integration for space-constrained control logic.
Technical Context
This device implements two independent OR logic functions with Schmitt-trigger–free inputs and push-pull CMOS outputs. Each gate accepts TTL-level inputs (2.0 V VIH min) while driving CMOS loads up to ±4.0 mA, enabling direct interfacing between legacy TTL subsystems and modern low-voltage logic rails.
It features input clamp diodes allowing safe interface to voltages exceeding VCC when used with current-limiting resistors, and meets JESD7A compliance across 4.5–5.5 V. Latch-up immunity exceeds 100 mA per JESD78 Class II Level B, supporting robust operation in noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Dual independent 2-input OR gates - enables compact implementation of parallel logical OR operations without external gating. |
| Supply Voltage Range | 4.5 V to 5.5 V - ensures compatibility with standard 5 V TTL and mixed-signal systems requiring rail tolerance. |
| Propagation Delay (tpd) | 13 ns (typ) to 36 ns (max) at VCC = 4.5 V, -40 °C to +125 °C - defines worst-case timing margin for synchronous control path design. |
| Input Thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V - guarantees reliable recognition of standard TTL output levels (e.g., 74LS, 74F) without level shifters. |
| Output Drive | ±4.0 mA at VCC = 4.5 V - supports fan-out of ≥10 74HCT inputs or direct LED drive with series resistor. |
| Operating Temperature | -40 °C to +125 °C - qualified for under-hood automotive modules, industrial PLC I/O, and high-ambient embedded controllers. |
| Power Dissipation | CPD = 11 pF per buffer - enables accurate dynamic power estimation (PD = CPD × VCC² × fi × N) for thermal budgeting. |
Pinout & Package
VSSOP8 plastic very thin shrink small outline package (SOT765-1); 8 leads; body width 2.3 mm; pin 1 indicator located on lower-left corner below marking "T32".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1A | First OR gate input A - accepts TTL-level signals; clamped to prevent overvoltage damage. |
| 2 | 1B | First OR gate input B - electrically identical to 1A; both inputs share same VIH/VIL specs. |
| 3 | 1Y | First OR gate output Y - push-pull CMOS output capable of sourcing/sinking 4 mA at 4.5 V. |
| 4 | GND | Ground reference - must be connected to system 0 V plane; decoupling capacitor recommended adjacent to pin. |
| 5 | 2A | Second OR gate input A - fully isolated from first gate; no internal coupling or crosstalk. |
| 6 | 2B | Second OR gate input B - identical electrical behavior to 1A/1B; supports independent logic function. |
| 7 | 2Y | Second OR gate output Y - matches 1Y in drive strength, voltage levels, and timing characteristics. |
| 8 | VCC | Positive supply - requires local 100 nF ceramic decoupling; not internally regulated. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | VIH ≥ 2.0 V and VIL ≤ 0.8 V at VCC = 4.5–5.5 V - eliminates need for external level translators when interfacing with 74LS/74F families. |
| Input clamp diodes | Enables safe connection to signals up to VCC + 0.5 V using series current-limiting resistors - protects against overvoltage during hot-swap or mixed-rail debugging. |
| High noise immunity | Typical noise margin > 1.2 V at VCC = 5 V - suppresses false triggering from EFT bursts or radiated RFI in industrial control cabinets. |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II Level B - prevents destructive latch-up during transient overcurrent events in motor drive feedback paths. |
| ESD protection | HBM > 2000 V, CDM > 1000 V - sustains handling and board assembly without special ESD precautions beyond standard IPC-610 practices. |
Applications
| Industrial Sensor Fusion Hub | Automotive Body Control Module |
|---|---|
Use Scenario: Merging fault flags from multiple temperature, pressure, and position sensors into a single aggregated alert line before feeding MCU interrupt input. IC Role / Device Role / Timing Role: Dual OR gate performing real-time logical OR of asynchronous sensor status bits - no clock required; combinatorial propagation delay <36 ns ensures sub-microsecond response. Use Value: Reduces MCU GPIO count by 2 pins while maintaining deterministic worst-case latency; VSSOP8 footprint saves PCB area versus discrete diode-OR solutions. |
Use Scenario: Combining door-open, trunk-open, and hood-open switch signals to trigger interior lighting activation regardless of which panel is opened. IC Role / Device Role / Timing Role: Level-translating OR logic element accepting 5 V switch pull-ups and driving 3.3 V MCU input - operates reliably at +105 °C ambient under dash. Use Value: Eliminates need for external voltage dividers or optocouplers; TTL input thresholds ensure clean recognition of mechanical switch bounce edges. |
| Programmable Logic Controller I/O Expansion | Medical Infusion Pump Safety Interlock |
Use Scenario: Consolidating enable signals from multiple safety relays and watchdog timers into a master RUN/STOP command for stepper motor driver ICs. IC Role / Device Role / Timing Role: Fail-safe combinatorial gate ensuring immediate shutdown if any upstream safety condition fails - zero hold time, no metastability risk. Use Value: Meets IEC 61508 SIL-2 requirement for hardware fault tolerance via redundant input paths; -40 °C to +125 °C rating supports extended industrial temperature range. |
Use Scenario: Validating simultaneous presence of door-closed, occlusion-detected, and air-in-line signals before permitting pump motor activation. IC Role / Device Role / Timing Role: Critical path OR gate in triple-redundant safety chain - output directly disables motor driver enable pin upon any fault detection. Use Value: Guarantees <100 ns fault-to-shutdown latency; input clamp diodes protect against ESD events during clinical cable handling without added TVS components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual 2-input OR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC2G32DBVR | Lower VCC range (1.65–5.5 V), CMOS inputs (VIH = 0.7×VCC), 3.7 ns tpd (typ) at 3.3 V - faster but less tolerant of 5 V TTL sources. | Preferred for 3.3 V-only systems with tight timing budgets; unsuitable for direct 5 V TTL input interfacing without external resistive divider. | Select when migrating to 3.3 V logic domains and speed outweighs input compatibility. |
| 74AHC2G32DC,125 | Wider VCC range (2.0–5.5 V), CMOS inputs (VIH = 0.5×VCC), 2.5 ns tpd (typ) at 5 V - higher speed and broader supply flexibility but lacks TTL input threshold. | Suitable for mixed 3.3/5 V designs where all drivers are CMOS; cannot replace 74HCT2G32DC in legacy TTL-connected nodes. | Choose for new designs prioritizing speed and rail flexibility over backward compatibility with TTL outputs. |
Compared with SN74LVC2G32DBVR and 74AHC2G32DC,125, the 74HCT2G32DC,125 uniquely preserves TTL input compatibility at 5 V while maintaining industrial temperature range and VSSOP8 footprint - making it irreplaceable in brownfield upgrades and mixed-technology control panels.
Availability
74HCT2G32DC,125 is available at Aetrix Electronics and suitable for industrial automation controllers, automotive body electronics, medical device safety interlocks, and programmable logic I/O expansion requiring stable component supply across extended temperature ranges.
Supply support for 74HCT2G32DC,125 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-performance logic, analog, and discrete components, with manufacturing rooted in process technology leadership and automotive-grade reliability.
The 74HCT series delivers TTL-compatible logic ICs optimized for seamless integration between legacy 5 V systems and modern low-power embedded platforms - designed specifically for industrial control, automotive body electronics, and medical equipment where interoperability and temperature resilience are critical.
FAQ
Is 74HCT2G32DC,125 pin-compatible with 74HC2G32DC,125?
Yes - both share identical VSSOP8 (SOT765-1) pinout, terminal assignments, and physical dimensions. However, 74HCT2G32DC,125 uses TTL input thresholds (VIH ≥ 2.0 V), while 74HC2G32DC,125 requires CMOS-level inputs (VIH ≥ 3.15 V at VCC = 4.5 V), making them functionally non-interchangeable without circuit review.
What is the maximum capacitive load this device can drive reliably?
The 74HCT2G32DC,125 is characterized up to 50 pF load capacitance in dynamic testing (Table 8), with transition times specified at CL = 50 pF. Driving >50 pF may increase propagation delay and rise/fall times beyond datasheet limits; for >100 pF loads, consider buffering or reducing trace length to maintain timing integrity.
Does this part support 3.3 V operation?
No - the 74HCT2G32DC,125 is specified only for 4.5 V to 5.5 V supply. Its TTL input thresholds (VIH ≥ 2.0 V) are defined relative to VCC; at 3.3 V, VIH would fall below 2.0 V, violating input specification and risking unreliable logic recognition. Use 74LVC2G32 or 74AHC2G32 for 3.3 V operation.
How does the input clamp diode affect external circuit design?
The integrated input clamp diodes allow safe connection to signals exceeding VCC (up to VCC + 0.5 V) when current is limited to ±20 mA via an external series resistor. This enables direct interfacing with 5 V signals in 3.3 V systems - but requires calculating resistor value using (Vsource − VCC − 0.5 V)/20 mA to stay within clamp current rating.
74HCT2G32DC,125 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 8-VFSOP (0.091", 2.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- OR Gate
- Number of Circuits:
- 2
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 1 µA
- Current - Output High, Low:
- 4mA, 4mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 24ns @ 4.5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-VSSOP
74HCT2G32DC,125 FAQ
1.How can I place an order for 74HCT2G32DC,125 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT2G32DC,125 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 74HCT2G32DC,125 reliable?
The price and inventory of 74HCT2G32DC,125 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT2G32DC,125 is usually 5 days.
3.What payment methods are accepted for 74HCT2G32DC,125?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT2G32DC,125 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT2G32DC,125?
74HCT2G32DC,125 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT2G32DC,125 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 74HCT2G32DC,125?
For technical support, including 74HCT2G32DC,125 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT2G32DC,125 requirements.
6.How does Aetrix verify that 74HCT2G32DC,125 is sourced from the original manufacturer or authorized distributors?
All 74HCT2G32DC,125 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 74HCT2G32DC,125 meets industry standards.
7.What is the process for return or replacement of 74HCT2G32DC,125?
All 74HCT2G32DC,125 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT2G32DC,125, 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 74HCT2G32DC,125 part is unused and in its original packaging.
Return procedure for 74HCT2G32DC,125:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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