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onsemi 74VHC32M
- Part No.:
- 74VHC32M
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
74VHC32M.pdf
- Description:
- IC GATE OR 4CH 2-INP 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,209
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Product details
Overview
74VHC32M from ON Semiconductor is a quad 2-input OR gate in a 14-lead SOIC package, operating at 2.0–5.5 V supply, with 3.8 ns typical propagation delay at 5 V, 2 µA max quiescent current, and input tolerance up to 7 V - used for logic-level translation and discrete gate logic in industrial control panels.
For engineers reviewing the 74VHC32M datasheet, pinout, applications, or equivalent options, key selection criteria include input voltage tolerance (–0.5 V to +7.0 V), noise immunity (28% VCC min), output drive capability (±8 mA), and compatibility with 74HC32-based designs requiring low-power CMOS performance.
Technical Context
The 74VHC32M implements four independent OR logic functions using silicon-gate CMOS technology, delivering TTL-compatible speed while maintaining CMOS power efficiency. Its internal buffer-output stage ensures stable switching and high noise immunity across temperature (–40°C to +85°C) and supply (2.0–5.5 V).
All inputs feature power-down protection and accept voltages from 0 V to 7 V regardless of VCC, enabling safe interfacing between 3 V and 5 V systems and battery-backup configurations without level shifters or external clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input OR gate - provides four independent Boolean OR operations per package |
| Propagation Delay | 3.8 ns typical at VCC = 5 V, CL = 15 pF - enables use in sub-100 MHz digital timing paths |
| Supply Voltage Range | 2.0 V to 5.5 V - supports mixed-voltage system integration and brown-out tolerant operation |
| Input Voltage Range | –0.5 V to +7.0 V - allows direct connection to overvoltage-safe nodes and 3 V/5 V bus bridging |
| Output Drive | ±8 mA at VCC = 4.5 V - sufficient to drive multiple CMOS inputs or small capacitive loads |
| Quiescent Current | 2 µA max at TA = 25°C - enables ultra-low standby power in battery-powered logic subsystems |
| Noise Immunity | 28% VCC min (VIH/VIL hysteresis) - resists EMI-induced glitches in noisy industrial environments |
Pinout & Package
74VHC32M is housed in a 14-lead Small Outline Integrated Circuit (SOIC) package per JEDEC MS-012, 0.150" narrow body, with standard 1.27 mm pitch and gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5, 8, 9, 11, 12 | Input (A1/B1, A2/B2, A3/B3, A4/B4) | Eight logic inputs grouped as four OR gate pairs; each accepts –0.5 V to +7.0 V independent of VCC |
| 3, 6, 10, 13 | Output (Y1–Y4) | Four buffered CMOS outputs capable of ±8 mA drive; VOL ≤ 0.44 V at IOL = 8 mA |
| 7 | GND | Ground reference for all logic and power domains; must be connected before VCC during power-up |
| 14 | VCC | Positive supply rail (2.0–5.5 V); powers all four gates and internal protection circuitry |
Key Features
| Feature | Design Value |
|---|---|
| High-speed CMOS architecture | 3.8 ns tPD at 5 V enables replacement of 74LS32 in timing-critical legacy designs |
| Input overvoltage tolerance | Supports 0–7 V input range regardless of VCC - eliminates need for external clamps in mixed-supply systems |
| Power-down input protection | Prevents latch-up or damage when inputs are driven while VCC = 0 - critical for hot-swap or partial-power-down systems |
| Low dynamic noise | VOLP ≤ 0.8 V ensures clean output transitions under 50 pF load, reducing crosstalk in dense PCB layouts |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
Use Scenario: Adding discrete OR logic to combine multiple sensor fault signals into a single alert line in programmable logic controller backplanes. IC Role / Device Role / Timing Role: Logic combiner aggregating active-HIGH fault flags from temperature, pressure, and flow sensors. Use Value: Enables deterministic fault prioritization without microcontroller intervention; operates reliably across –40°C to +85°C ambient. | Use Scenario: Merging door-open and trunk-latch status signals to trigger interior lighting activation in 12 V vehicle architectures. IC Role / Device Role / Timing Role: Level-translating OR gate interfacing 3.3 V MCU GPIOs with 5 V lamp driver enable lines. Use Value: Input voltage tolerance (up to 7 V) prevents damage from automotive load-dump transients on shared signal lines. |
| Medical Diagnostic Equipment UI | Test & Measurement Instrumentation |
Use Scenario: Generating "any-button-pressed" interrupt signals from membrane keypad matrices in portable ultrasound devices. IC Role / Device Role / Timing Role: Low-power combinatorial logic element consolidating row/column scan outputs into a single wake-up request. Use Value: 2 µA max ICC supports >10-year battery life in standby mode; SOIC package fits space-constrained front-panel PCBs. | Use Scenario: Implementing user-configurable trigger logic in benchtop oscilloscopes where multiple event sources feed a common acquisition enable path. IC Role / Device Role / Timing Role: Deterministic OR gate synchronizing external trigger, timer overflow, and software-initiated capture events. Use Value: 3.8 ns propagation delay ensures sub-10 ns timing resolution in multi-source trigger arbitration. |
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 |
|---|---|---|---|
| 74HC32D | Higher ICC (4 µA max), slower tPD (15 ns typ. at 5 V), same 14-pin SOIC package | Less suitable for high-speed timing paths but more tolerant of marginal VCC decoupling | Select when cost sensitivity outweighs speed requirements and design uses legacy 74HC layout footprints |
| SN74LVC32APWR | Wider VCC range (1.65–5.5 V), lower VOL (0.55 V max at 24 mA), TSSOP-14 package | Enables 1.8 V logic interfacing but requires PCB redesign due to different footprint and thermal pad | Select for new designs targeting 1.8 V/3.3 V mixed-signal systems where board space permits TSSOP |
Compared with 74HC32D and SN74LVC32APWR, the 74VHC32M delivers superior speed-to-power ratio at 5 V, maintains full 74HC32 pin compatibility, and offers unique 7 V input tolerance - making it optimal for retrofitting legacy 5 V systems requiring robustness against supply mismatch.
Availability
74VHC32M is available at Aetrix Electronics and suitable for industrial control panels, automotive body electronics, medical diagnostic UIs, and test equipment requiring stable component supply and long-term obsolescence management.
Supply support for 74VHC32M 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
ON Semiconductor is a global semiconductor manufacturer specializing in energy-efficient power and signal management solutions, with leadership in automotive, industrial, cloud computing, and medical markets.
The 74VHC32M belongs to ON Semiconductor's legacy logic portfolio inherited from Fairchild, designed specifically for robust, low-power, mixed-voltage digital interfacing in mission-critical industrial and automotive subsystems.
FAQ
What is the maximum input voltage rating for the 74VHC32M?
The 74VHC32M supports DC input voltages from –0.5 V to +7.0 V, independent of VCC level. This allows safe interfacing with higher-voltage nodes such as 5 V buses or transient-prone automotive lines without external protection components. The 74VHC32M's input protection circuitry prevents damage even when VCC is unpowered, making it ideal for hot-swap or backup-power scenarios.
Is the 74VHC32M pin-compatible with the 74HC32 family?
Yes, the 74VHC32M is pin and function compatible with the 74HC32 series, including identical pin assignments for all 14 terminals and matching truth table behavior. This allows drop-in replacement in existing 74HC32-based designs while delivering improved speed (3.8 ns vs. 15 ns typical) and enhanced input voltage tolerance. The 74VHC32M retains the same SOIC-14 footprint (M14A) as standard 74HC32 variants.
What is the recommended operating temperature range for the 74VHC32M?
The 74VHC32M is specified for continuous operation from –40°C to +85°C, meeting industrial-grade environmental requirements. This range is validated across all electrical parameters including propagation delay, output drive, and noise immunity. The 74VHC32M's silicon-gate CMOS process ensures stable performance across this full range without derating, supporting deployment in harsh environments like factory automation controllers or under-hood automotive modules.
Does the 74VHC32M require external pull-up or pull-down resistors on unused inputs?
No, unused inputs on the 74VHC32M must be held HIGH or LOW - they may not float - but no external resistors are required if tied directly to VCC or GND. The device does not integrate internal weak pull-ups or pull-downs; however, its input protection and defined VIH/VIL thresholds ensure reliable static logic levels when externally terminated. This requirement applies to all four OR gate inputs (pins 1,2,4,5,8,9,11,12) to prevent increased ICC or metastability.
What packaging and compliance information applies to the 74VHC32M?
The 74VHC32M is supplied in a lead-free 14-lead SOIC package (JEDEC MS-012, M14A) compliant with J-STD-020B reflow standards. It meets RoHS Directive 2011/65/EU and is halogen-free. The package features 1.27 mm pitch, gull-wing leads, and a 0.150" body width. No additional moisture sensitivity labeling is required, as the 74VHC32M is rated MSL-1 (unlimited floor life at ≤30°C/60% RH).
74VHC32M Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74VHC
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Logic Type:
- OR Gate
- Number of Circuits:
- 4
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 2V ~ 5.5V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 8mA, 8mA
- Input Logic Level - Low:
- 0.5V
- Input Logic Level - High:
- 1.5V
- Max Propagation Delay @ V, Max CL:
- 7.5ns @ 5V, 50pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
74VHC32M FAQ
1.How can I place an order for 74VHC32M through Aetrix?
Please submit a Request for Quotation (RFQ) for 74VHC32M 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 74VHC32M reliable?
The price and inventory of 74VHC32M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74VHC32M is usually 5 days.
3.What payment methods are accepted for 74VHC32M?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74VHC32M transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74VHC32M?
74VHC32M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74VHC32M 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 74VHC32M?
For technical support, including 74VHC32M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74VHC32M requirements.
6.How does Aetrix verify that 74VHC32M is sourced from the original manufacturer or authorized distributors?
All 74VHC32M 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 74VHC32M meets industry standards.
7.What is the process for return or replacement of 74VHC32M?
All 74VHC32M units undergo pre-shipment inspection (PSI). If there is an issue with 74VHC32M, 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 74VHC32M part is unused and in its original packaging.
Return procedure for 74VHC32M:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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