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Nexperia USA Inc. 74HC32DB,118
- Part No.:
- 74HC32DB,118
- Manufacturer:
- Nexperia USA Inc.
- Category:
- Gates and Inverters
- Package:
- 14-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
74HC32DB,118.pdf
- Description:
- IC GATE OR 4CH 2-INP 14SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,719
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Product details
Overview
74HC32DB,118 from Nexperia is a quad 2-input OR gate logic IC in SO14 (SOT108-1) package, operating from 2.0 V to 6.0 V supply, delivering CMOS-level input compatibility, symmetrical output impedance, balanced propagation delays (6–90 ns depending on VCC and load), and specified operation from −40 °C to +125 °C. It serves as a fundamental combinational logic building block in digital control, signal routing, and bus arbitration circuits.
For engineers reviewing the 74HC32DB,118 datasheet, 74HC32DB,118 pinout, 74HC32DB,118 application, or 74HC32DB,118 equivalent, key selection considerations include its 2.0–6.0 V wide supply range, TTL-compatible variants (74HCT32), input clamp diodes enabling overvoltage-tolerant interfacing, ESD robustness (HBM >2000 V), and thermal performance in industrial-grade SO14 packaging.
Technical Context
The 74HC32DB,118 implements four independent OR gates with fully buffered inputs and outputs, each featuring internal clamp diodes that allow safe interface to signals exceeding VCC when used with current-limiting resistors. Its CMOS architecture ensures low static power consumption (ICC ≤ 40 μA at 6.0 V, −40 °C to +125 °C) and high noise immunity.
Propagation delay is tightly balanced across all four gates (tpd = 6 ns typ @ VCC = 6.0 V, CL = 50 pF), and transition times (tt = 6 ns typ @ VCC = 6.0 V) support reliable timing in synchronous logic systems. Input thresholds scale with VCC (VIH = 0.7×VCC min for 74HC32), while output drive capability is ±4.0 mA (VOH/VOL guaranteed at 4.5 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input OR gate - provides four independent Boolean OR operations per package |
| Supply Voltage Range | 2.0 V to 6.0 V - enables interoperability across 3.3 V and 5 V systems without level shifters |
| Propagation Delay | 6 ns (typ) @ VCC = 6.0 V, CL = 50 pF - supports >30 MHz toggle rates in clean logic paths |
| Output Drive | ±4.0 mA @ VCC = 4.5 V - sufficient to drive multiple 74HC/T inputs or small capacitive loads |
| Operating Temperature | −40 °C to +125 °C - qualified for under-hood, industrial control, and extended-environment applications |
| ESD Protection | HBM >2000 V, CDM >1000 V - reduces risk of handling damage during assembly and rework |
| Input Clamp Diodes | Integrated - permits safe interface to voltages up to VCC + 0.5 V using external series resistors |
Pinout & Package
74HC32DB,118 is supplied in SO14 (SOT108-1) plastic small outline package: 14-lead, 3.9 mm body width, 1.27 mm lead pitch, gull-wing leads, JEDEC MS-012 compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1A, 4A, 9A, 12A | Input A of Gates 1–4 | First input terminal per OR gate; accepts CMOS-level signals (VIH ≥ 0.7×VCC) |
| 2B, 5B, 10B, 13B | Input B of Gates 1–4 | Second input terminal per OR gate; electrically identical to corresponding A pin |
| 3Y, 6Y, 8Y, 11Y | Output Y of Gates 1–4 | OR result (nY = nA ∨ nB); rail-to-rail swing with symmetrical sourcing/sinking capability |
| 7 | GND | Ground reference (0 V); must be connected to system common for proper logic threshold referencing |
| 14 | VCC | Positive supply rail; decoupling capacitor (100 nF ceramic) recommended within 10 mm |
Key Features
| Feature | Design Value |
|---|---|
| Wide supply range | 2.0 V to 6.0 V - eliminates need for separate voltage domains in mixed-supply boards |
| Latch-up immunity | Exceeds 100 mA per JESD78 Class II Level B - prevents destructive latch-up under transient overcurrent |
| Input clamping | Integrated diodes enable overvoltage-safe interfacing (e.g., 5 V signals into 3.3 V system) |
| Thermal rating | Rated to +125 °C ambient - supports use in sealed enclosures or near heat sources |
| Low dynamic power | CPD = 16 pF - limits switching power dissipation in high-frequency clock distribution |
Applications
| Industrial PLC I/O Expansion | Digital Signal Routing |
|---|---|
Use Scenario: Combining status signals from multiple sensors (e.g., limit switches, proximity detectors) into a single fault-bus line. IC Role / Device Role / Timing Role: OR gate aggregating discrete ON/OFF inputs; no timing-critical path - propagation delay tolerance >100 ns. Use Value: Reduces PCB footprint vs. discrete transistor solutions; eliminates external pull-ups required by open-collector alternatives. |
Use Scenario: Selecting between two microcontroller peripheral outputs (e.g., UART TX or debug SWO) onto a shared test header. IC Role / Device Role / Timing Role: Active-high signal combiner; operates at system clock domain edge rates (<10 MHz). Use Value: Provides glitch-free bus sharing without contention; avoids bidirectional buffer complexity or software coordination. |
| Power Sequencing Monitor | Legacy Bus Arbitration |
Use Scenario: Detecting failure of any one of four regulated DC rails (3.3 V, 5 V, 12 V, −5 V) to assert a global POWER_GOOD# signal. IC Role / Device Role / Timing Role: Fault-or logic element; static assertion with no timing constraints beyond setup/hold. Use Value: Enables single-point monitoring without custom ASIC or FPGA logic; supports hot-swap compliance via fast response (<1 µs). |
Use Scenario: Resolving bus grant requests from four legacy peripherals (e.g., ISA-style DMA controllers) competing for shared memory access. IC Role / Device Role / Timing Role: Priority encoder front-end; OR-ing request lines before priority resolution logic. Use Value: Simplifies arbitration logic design; maintains deterministic latency due to matched gate delays across all four channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad 2-input OR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 74HCT32DB,118 | TTL-compatible inputs (VIH = 2.0 V min), otherwise identical pinout, timing, and drive | Required when interfacing with legacy 5 V TTL outputs; not suitable for pure CMOS 3.3 V systems without level translation | Select when driving from 5 V TTL sources; avoid if all upstream logic is 3.3 V CMOS |
| SN74LVC32APWR | Lower VCC range (1.65–5.5 V), higher speed (tpd = 3.5 ns typ @ 3.3 V), 3.3 V optimized | Better suited for modern low-voltage, high-speed designs; lacks input clamp diodes for overvoltage tolerance | Prefer for new 3.3 V designs requiring <5 ns delay; verify input overvoltage protection separately |
Compared with 74HC32DB,118, the 74HCT32DB,118 offers guaranteed TTL input compatibility at 5 V but sacrifices 2.0 V minimum supply operation, while SN74LVC32APWR delivers faster switching at lower voltage but removes integrated overvoltage protection - making the HC variant optimal for robust, wide-supply industrial signal conditioning.
Availability
74HC32DB,118 is available at Aetrix Electronics and suitable for industrial control panels, automotive body electronics modules, and telecom infrastructure equipment requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HC32DB,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 leading Dutch semiconductor manufacturer specializing in high-volume logic, analog, and discrete components, with emphasis on reliability, efficiency, and automotive-grade qualification.
The 74HC32DB,118 belongs to Nexperia's 74HC logic family - designed for general-purpose digital interfacing where wide supply range, robust ESD performance, and industrial temperature operation are essential.
FAQ
Is 74HC32DB,118 pin-compatible with 74LS32?
No. While both are quad 2-input OR gates, 74HC32DB,118 uses SO14 (SOT108-1) packaging with different pin numbering than the through-hole DIP-14 used by 74LS32. More critically, it has CMOS input thresholds (VIH ≈ 0.7×VCC) versus TTL (VIH = 2.0 V), so direct substitution may cause logic misreads unless supply and source levels match.
Can 74HC32DB,118 drive an LED directly?
Yes, with current limiting. At VCC = 5 V, VOH ≥ 4.4 V and VOL ≤ 0.26 V (IO = ±4.0 mA), allowing direct connection of a standard 2 mA LED (anode to VCC, cathode to output) with a 1.5 kΩ series resistor. Do not exceed 4 mA continuous per output to maintain VOL specification and avoid thermal stress.
Does 74HC32DB,118 require external pull-up or pull-down resistors?
No - all inputs have defined CMOS thresholds and high impedance (II ≤ ±1 μA), so floating inputs are electrically unstable and must be tied to VCC or GND. Outputs are push-pull and do not require termination unless driving transmission lines or high-capacitance buses (>100 pF), where series damping may improve signal integrity.
What is the maximum capacitive load for reliable 74HC32DB,118 operation?
At VCC = 5 V, CL ≤ 50 pF ensures tpd ≤ 18 ns and tt ≤ 15 ns per datasheet. For loads up to 100 pF, propagation delay increases to ~25 ns but remains functional. Beyond 150 pF, rise/fall times degrade significantly, risking setup/hold violations in synchronous systems - add a buffer stage for heavy loads.
74HC32DB,118 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Series:
- 74HC
- Package/Case:
- 14-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- OR Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 5.2mA, 5.2mA
- Input Logic Level - Low:
- 0.5V ~ 1.8V
- Input Logic Level - High:
- 1.5V ~ 4.2V
- Max Propagation Delay @ V, Max CL:
- 15ns @ 6V, 50pF
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SSOP
74HC32DB,118 FAQ
1.How can I place an order for 74HC32DB,118 through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC32DB,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 74HC32DB,118 reliable?
The price and inventory of 74HC32DB,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC32DB,118 is usually 5 days.
3.What payment methods are accepted for 74HC32DB,118?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC32DB,118 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC32DB,118?
74HC32DB,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC32DB,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 74HC32DB,118?
For technical support, including 74HC32DB,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC32DB,118 requirements.
6.How does Aetrix verify that 74HC32DB,118 is sourced from the original manufacturer or authorized distributors?
All 74HC32DB,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 74HC32DB,118 meets industry standards.
7.What is the process for return or replacement of 74HC32DB,118?
All 74HC32DB,118 units undergo pre-shipment inspection (PSI). If there is an issue with 74HC32DB,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 74HC32DB,118 part is unused and in its original packaging.
Return procedure for 74HC32DB,118:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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