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Nexperia USA Inc. 74HCT1G32GW,165
- Part No.:
- 74HCT1G32GW,165
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
74HCT1G32GW,165.pdf
- Description:
- IC GATE OR 1CH 2-INP 5TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,192
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Product details
Overview
74HCT1G32GW,165 from Nexperia is a single 2-input OR gate logic IC with TTL-compatible input thresholds (VIH = 2.0 V min, VIL = 0.8 V max at VCC = 4.5–5.5 V), 5-pin TSSOP5 (SOT353-1) package, −40 °C to +125 °C operating range, and propagation delay of 10 ns (typ) at VCC = 4.5 V / CL = 50 pF. It serves as a discrete logic building block in level-shifting, signal combining, and enable-gating functions within industrial control I/O modules.
For engineers reviewing the 74HCT1G32GW,165 datasheet, 74HCT1G32GW,165 pinout, 74HCT1G32GW,165 application, or 74HCT1G32GW,165 equivalent, key selection criteria include TTL-level input compatibility, guaranteed operation up to +125 °C, low dynamic power (CPD = 20 pF), symmetrical output drive (±2.0 mA), and validated performance under JEDEC JESD7A and JESD8C standards.
Technical Context
This device implements a standard positive-logic OR function (Y = A + B) using CMOS silicon with buffered TTL-compatible input stages. Its input clamping diodes allow safe interfacing to voltages exceeding VCC when used with current-limiting resistors.
It operates across a fixed 4.5–5.5 V supply range for TTL compatibility, delivers rail-to-rail CMOS output swing, and maintains balanced tPLH/tPHL propagation delays (≤27 ns max over full temperature range). Latch-up immunity exceeds 100 mA per JESD78 Class II Level B.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Single 2-input OR gate (Y = A OR B); enables basic combinatorial logic without external pull-ups or level translators. |
| Supply Voltage Range | 4.5 V to 5.5 V; ensures interoperability with legacy 5 V TTL systems and avoids marginal operation near VCC limits. |
| Input Thresholds | VIH ≥ 2.0 V, VIL ≤ 0.8 V (at VCC = 4.5–5.5 V); guarantees reliable recognition of standard TTL logic levels. |
| Propagation Delay | 10 ns typical, 27 ns maximum (VCC = 4.5 V, CL = 50 pF, −40 °C to +125 °C); supports timing-critical enable/control paths up to ~30 MHz toggle rate. |
| Output Drive | ±2.0 mA at VOH/VOL specifications; sufficient to directly drive one 74-series TTL input or multiple CMOS inputs with minimal fanout restriction. |
| Operating Temperature | −40 °C to +125 °C; qualified for under-hood automotive sub-systems, industrial motor drives, and extended-temperature embedded controllers. |
| ESD Robustness | HBM > 2000 V, CDM > 1000 V; reduces risk of field failure during manual handling or board assembly in non-EPA environments. |
Pinout & Package
TSSOP5 (SOT353-1) plastic thin shrink small outline package: 5-lead, 1.25 mm body width, 0.65 mm lead pitch, exposed pad not present, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (B) | Data input B | Standard CMOS input with clamp diodes; accepts DC voltages up to VCC + 0.5 V when series current limiting is applied. |
| 2 (A) | Data input A | Identical to Pin 1; dual inputs support independent signal routing without shared bus contention. |
| 3 (GND) | Ground reference | Primary return path for all internal logic and output currents; must be low-impedance to minimize ground bounce in multi-gate layouts. |
| 4 (Y) | Data output Y | CMOS push-pull output capable of sourcing/sinking 2.0 mA while maintaining VOH ≥ 4.13 V and VOL ≤ 0.33 V at VCC = 4.5 V. |
| 5 (VCC) | Positive supply | Power rail connection; decoupling capacitor (100 nF ceramic) required within 5 mm for stable high-speed switching. |
Key Features
| Feature | Design Value |
|---|---|
| TTL-compatible inputs | Enables direct interface with legacy 5 V microcontrollers, FPGAs, and peripheral ICs without level-shifting circuitry. |
| Symmetrical output impedance | Ensures matched rise/fall times (tPLH ≈ tPHL), critical for minimizing skew in timing-sensitive control signals. |
| High noise immunity | Input hysteresis and 0.4 V noise margin (VIH − VIL) suppress false triggering from EMI or crosstalk in noisy industrial environments. |
| Low dynamic power | CPD = 20 pF enables <1 mW typical dynamic dissipation at 1 MHz toggle rate, supporting thermally constrained PCB layouts. |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II Level B, preventing destructive latch-up during transient overvoltage events on I/O lines. |
Applications
| Industrial PLC Input Conditioning | Automotive Body Control Module |
|---|---|
|
Use Scenario: Combining multiple sensor fault flags (e.g., door open, seatbelt unfastened, trunk ajar) into a single aggregated warning signal. IC Role / Device Role / Timing Role: Discrete OR gate performing real-time logical OR of asynchronous digital inputs with no software overhead. Use Value: Eliminates need for MCU GPIO polling or firmware logic, reducing latency (<27 ns) and freeing CPU cycles for higher-priority tasks. |
Use Scenario: Enabling power to auxiliary lighting circuits only when both ignition-on signal AND headlight switch are active. IC Role / Device Role / Timing Role: Hardware-level safety interlock gate ensuring power delivery requires concurrent valid conditions. Use Value: Provides fail-safe hardware-enforced logic independent of microcontroller state, meeting ASIL-B functional safety requirements. |
| Medical Equipment Power Sequencing | Test & Measurement Signal Gating |
|
Use Scenario: Generating a master "system ready" signal only after all subsystems (HV supply, cooling, sensor bias) report readiness. IC Role / Device Role / Timing Role: Final-stage combiner in multi-stage power-up sequence, synchronizing enable propagation across isolated domains. Use Value: Guarantees deterministic startup order with nanosecond-level timing precision, avoiding race conditions in analog front-end initialization. |
Use Scenario: Gating oscilloscope trigger outputs to prevent false triggers during calibration or self-test modes. IC Role / Device Role / Timing Role: Fast-response logic gate enabling/disabling trigger paths based on mode-select signals. Use Value: Achieves sub-30 ns enable/disable transition, preserving instrument timing resolution and eliminating post-trigger artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 2-input OR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74LVC1G32GW,165 | Wider supply range (1.65–5.5 V), CMOS input thresholds (VIH = 0.7×VCC), lower ICC (max 10 μA vs. 20 μA). | Better suited for mixed-voltage systems (e.g., 3.3 V MCU controlling 5 V peripherals) but lacks native TTL compatibility. | Select when operating below 4.5 V or integrating with modern low-voltage logic families; avoid if interfacing with legacy 5 V TTL sources. |
| SN74LVC1G32DBVR | Same logic function and supply range, but SOT-23-5 package (larger footprint, 2.92 mm × 1.6 mm vs. TSSOP5's 2.2 mm × 1.35 mm), higher thermal resistance (θJA = 278 K/W vs. 220 K/W). | Preferred where hand-soldering or legacy pick-and-place tooling favors SOT-23 over TSSOP; less suitable for dense, thermally constrained layouts. | Choose for prototyping ease or backward compatibility with existing SOT-23 footprints; prefer 74HCT1G32GW,165 for space- and thermal-constrained production designs. |
Compared with 74LVC1G32GW,165 and SN74LVC1G32DBVR, the 74HCT1G32GW,165 uniquely delivers TTL-level input compatibility at 5 V while fitting the smallest industry-standard 5-pin logic package - making it optimal for retrofitting legacy 5 V systems without redesigning voltage translation or layout.
Availability
74HCT1G32GW,165 is available at Aetrix Electronics and suitable for industrial PLC input conditioning, automotive body control modules, medical equipment power sequencing, and test & measurement signal gating requiring stable component supply across extended temperature ranges.
Supply support for 74HCT1G32GW,165 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, discrete, and MOSFET solutions, serving automotive, industrial, and consumer markets with ISO/TS 16949-certified manufacturing.
The 74HCT1G32GW,165 belongs to Nexperia's 74HCT logic family, engineered specifically for seamless integration with legacy 5 V TTL systems while delivering CMOS efficiency, robustness, and extended temperature operation.
FAQ
Can 74HCT1G32GW,165 operate reliably at 3.3 V supply?
No. The 74HCT1G32GW,165 is specified only for 4.5 V to 5.5 V operation per its recommended conditions table. At 3.3 V, VIH minimum (2.0 V) exceeds 60% of VCC, violating TTL input threshold ratios and risking unreliable HIGH detection. Use 74LVC1G32GW,165 instead for 3.3 V systems.
What is the maximum capacitive load this OR gate can drive without exceeding propagation delay specs?
The datasheet specifies tpd ≤ 27 ns maximum at CL = 50 pF and VCC = 4.5 V. Driving loads >50 pF increases delay nonlinearly; for 100 pF, measured tpd exceeds 40 ns. For loads beyond 50 pF, add a buffer stage or reduce trace length to maintain timing integrity in high-speed control paths.
Does this device require external pull-up or pull-down resistors on unused inputs?
No. Unused inputs must be tied HIGH or LOW via direct connection to VCC or GND. Floating inputs cause increased ICC, unpredictable output states, and potential oscillation due to CMOS input stage metastability. Current-limiting resistors are unnecessary - direct hard-wiring ensures lowest power and highest noise immunity.
How does the input clamping diode functionality affect system-level ESD protection design?
The integrated input clamp diodes (to VCC and GND) provide primary ESD current shunting per HBM/CDM tests, but they are not rated for system-level IEC 61000-4-2 events. External TVS diodes remain mandatory for board-level ESD protection; these clamps serve only to protect the die during handling and assembly, not end-equipment operation.
74HCT1G32GW,165 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HCT
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- OR Gate
- Number of Circuits:
- 1
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 20 µA
- Current - Output High, Low:
- 2mA, 2mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 10ns @ 4.5V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSSOP
74HCT1G32GW,165 FAQ
1.How can I place an order for 74HCT1G32GW,165 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HCT1G32GW,165 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 74HCT1G32GW,165 reliable?
The price and inventory of 74HCT1G32GW,165 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HCT1G32GW,165 is usually 5 days.
3.What payment methods are accepted for 74HCT1G32GW,165?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HCT1G32GW,165 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HCT1G32GW,165?
74HCT1G32GW,165 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HCT1G32GW,165 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 74HCT1G32GW,165?
For technical support, including 74HCT1G32GW,165 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HCT1G32GW,165 requirements.
6.How does Aetrix verify that 74HCT1G32GW,165 is sourced from the original manufacturer or authorized distributors?
All 74HCT1G32GW,165 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 74HCT1G32GW,165 meets industry standards.
7.What is the process for return or replacement of 74HCT1G32GW,165?
All 74HCT1G32GW,165 units undergo pre-shipment inspection (PSI). If there is an issue with 74HCT1G32GW,165, 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 74HCT1G32GW,165 part is unused and in its original packaging.
Return procedure for 74HCT1G32GW,165:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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