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onsemi MC74HC32ADTR2G-Q
- Part No.:
- MC74HC32ADTR2G-Q
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MC74HC32ADTR2G-Q.pdf
- Description:
- IC GATE OR 4CH 2-INP 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,262
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Product details
Overview
MC74HC32ADTR2G-Q from onsemi is a quad 2-input OR gate in TSSOP-14 package, operating across 2.0–6.0 V supply, with propagation delay as low as 13 ns at 6.0 V, output drive capability of 10 LSTTL loads, and AEC-Q100 qualification for automotive control logic applications.
For engineers reviewing the MC74HC32ADTR2G-Q datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, automotive-grade thermal and ESD performance, pin-accurate terminal roles, and real-world use cases in vehicle body electronics and powertrain interface logic.
Technical Context
The MC74HC32ADTR2G-Q implements four independent CMOS OR gates (Y = A + B) using high-performance silicon-gate technology. Each gate features symmetrical input thresholds (VIH = 1.5 V min at VCC = 2.0 V; VIL = 0.5 V max), rail-to-rail output swing, and guaranteed operation from –55 °C to +125 °C.
It supports mixed-voltage interfacing: inputs tolerate Standard CMOS outputs natively and LSTTL outputs with pullup resistors. Its 10 pF maximum input capacitance and 20 pF typical power dissipation capacitance per buffer enable stable timing in noise-sensitive digital subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Four independent 2-input OR gates (Y = A + B); no internal interconnect between gates. |
| Supply Voltage Range | 2.0 V to 6.0 V - enables direct integration into 3.3 V and 5 V systems without level shifters. |
| Propagation Delay | 13 ns max (A/B → Y) at VCC = 6.0 V, TA ≤ 125 °C - ensures sub-20 ns timing margin for 25 MHz clocked logic. |
| Output Drive | ±25 mA DC output current per pin - drives 10 LSTTL loads or fan-out to multiple CMOS/NMOS inputs. |
| Input Leakage | ±1.0 µA max at VCC = 6.0 V, TA ≤ 125 °C - minimizes standby current in battery-backed modules. |
| ESD Rating | >2000 V HBM - meets automotive board-level ESD robustness requirements per ISO 10605. |
| Operating Temperature | –55 °C to +125 °C - qualified for under-hood and chassis-mounted electronic control units. |
Pinout & Package
TSSOP-14 (Case 948G), 4.9 mm × 4.4 mm × 1.2 mm profile, Pb-free, RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A1 | First input of Gate 1 - must be tied to valid logic level if unused (no floating inputs). |
| 2 | B1 | Second input of Gate 1 - paired with Pin 1 to form first OR function (Y1 = A1 + B1). |
| 3 | Y1 | Output of Gate 1 - rail-to-rail CMOS output compatible with TTL, NMOS, and CMOS loads. |
| 4 | A2 | First input of Gate 2 - electrically isolated from other gates; identical VIH/VIL thresholds. |
| 5 | B2 | Second input of Gate 2 - forms second OR function (Y2 = A2 + B2) with Pin 4. |
| 6 | Y2 | Output of Gate 2 - shares same drive strength and AC characteristics as Y1–Y4. |
| 7 | GND | Ground reference for all logic and power domains - requires low-impedance PCB connection. |
| 8 | Y3 | Output of Gate 3 - matches propagation delay and transition time specs of Y1/Y2/Y4. |
| 9 | A3 | First input of Gate 3 - positioned adjacent to Y3 for minimized trace length in layout. |
| 10 | B3 | Second input of Gate 3 - completes third OR function (Y3 = A3 + B3). |
| 11 | Y4 | Output of Gate 4 - final buffered OR output; same CPD (20 pF) and ICC quiescent current. |
| 12 | A4 | First input of Gate 4 - located near Y4 to support compact routing in space-constrained modules. |
| 13 | B4 | Second input of Gate 4 - forms fourth OR function (Y4 = A4 + B4); fully decoupled from others. |
| 14 | VCC | Positive supply rail - requires local 0.1 µF ceramic decoupling capacitor within 5 mm. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for automotive applications requiring operation from –40 °C to +125 °C ambient, including PPAP documentation support. |
| CMOS input compatibility | Direct interface with standard CMOS outputs; LSTTL compatibility enabled via external pullups - eliminates need for translators. |
| Rail-to-rail output swing | VOH ≥ 5.9 V and VOL ≤ 0.1 V at VCC = 6.0 V - ensures full noise margin against downstream logic thresholds. |
| Low dynamic power consumption | CPD = 20 pF per gate - enables <1 mW total dynamic power at 1 MHz and VCC = 5 V (PD = CPD × VCC² × f + ICC × VCC). |
| High noise immunity | Typical noise margin >1.5 V at VCC = 5 V - suppresses false triggering from coupled transients in motor drive or lighting circuits. |
Applications
| Body Control Module Logic | Powertrain Sensor Interface |
|---|---|
|
Use Scenario: Combining door lock status, window position, and key fob signals to trigger interior lighting activation. IC Role / Device Role / Timing Role: Quad OR gate performs wired-OR signal aggregation with deterministic propagation (<19 ns at 5 V) and no added latency from software polling. Use Value: Enables deterministic response within 20 ms of any input change, meeting OEM body electronics timing requirements without MCU intervention. |
Use Scenario: Merging crankshaft and camshaft position fault flags before forwarding to engine ECU diagnostic bus. IC Role / Device Role / Timing Role: Hardware-level OR logic provides fail-safe fault indication with guaranteed worst-case delay of 22 ns at 125 °C. Use Value: Eliminates single-point software failure risk; maintains diagnostic integrity even during MCU reset or firmware hang. |
| LED Driver Enable Logic | Transmission Control Unit Safety Interlock |
|
Use Scenario: Enabling high-brightness LED arrays only when both ignition-on and brake-pedal-press signals are active. IC Role / Device Role / Timing Role: One OR gate combines redundant enable paths; remaining gates handle auxiliary lighting states. Use Value: Prevents unintended LED activation during power-up transients or CAN bus glitches - critical for ASIL-B compliant lighting systems. |
Use Scenario: Validating neutral gear selection and parking brake engagement before permitting torque request execution. IC Role / Device Role / Timing Role: Dedicated OR gate implements hardware-enforced safety interlock with sub-25 ns decision latency. Use Value: Meets ISO 26262 ASIL-B hardware fault tolerance requirements by providing independent, analog-free logic path outside MCU domain. |
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 |
|---|---|---|---|
| MC74HC32ADR2G-Q | SOIC-14 package (7.5 mm × 5.3 mm), higher thermal resistance (116 °C/W vs. 150 °C/W), same electrical specs and AEC-Q100 grade. | Suitable for through-hole or legacy PCB layouts where TSSOP reflow is not supported; lower pin density but easier manual inspection. | Select when board assembly uses wave soldering or requires larger pitch for reliability in high-vibration environments. |
| SN74LVC32APWR | 3.3 V only (1.65–3.6 V), lower propagation delay (4.5 ns typ), but not AEC-Q100 qualified; different pinout (Y1/A1/B1 order differs). | Applicable in non-automotive industrial controllers or consumer devices needing faster switching at 3.3 V. | Choose only for cost-sensitive, non-automotive designs where AEC-Q100 compliance and 5 V tolerance are unnecessary. |
Compared with MC74HC32ADR2G-Q, the MC74HC32ADTR2G-Q offers 27% smaller footprint and better high-frequency thermal performance; versus SN74LVC32APWR, it trades speed for automotive qualification, wider voltage range, and proven reliability in harsh environments.
Availability
MC74HC32ADTR2G-Q is available at Aetrix Electronics and suitable for automotive body control, powertrain interface, LED driver enable, and transmission safety interlock applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC74HC32ADTR2G-Q 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
onsemi (formerly ON Semiconductor) is a global semiconductor supplier specializing in energy-efficient electronics for automotive, industrial, cloud, and IoT applications.
The MC74HC32ADTR2G-Q belongs to the HC-series high-speed CMOS logic family, designed specifically for automotive-grade digital signal conditioning, fault aggregation, and hardware-enforced safety interlocks in harsh environments.
FAQ
What is the maximum operating temperature for the MC74HC32ADTR2G-Q?
The MC74HC32ADTR2G-Q is rated for continuous operation from –55 °C to +125 °C junction temperature and is AEC-Q100 Grade 1 qualified, meaning it supports ambient temperatures up to +125 °C in automotive under-hood applications. Derating applies above 85 °C ambient based on package thermal resistance (150 °C/W) and power dissipation.
Does the MC74HC32ADTR2G-Q require external pull-up resistors for TTL input compatibility?
Yes - the MC74HC32ADTR2G-Q inputs are compatible with Standard CMOS outputs natively, but to interface with LSTTL outputs, external pull-up resistors are required to raise the input voltage above the VIH threshold (e.g., 2.1 V min at VCC = 3.0 V). Typical values range from 4.7 kΩ to 10 kΩ depending on source impedance and noise margin requirements.
Can unused inputs on the MC74HC32ADTR2G-Q be left floating?
No - unused inputs on the MC74HC32ADTR2G-Q must be tied to a valid logic level (VCC or GND) to prevent undefined output states, increased ICC current, and potential oscillation. The datasheet explicitly states that unused inputs must never be left open, as CMOS inputs exhibit high impedance and susceptibility to noise-induced switching.
Is the MC74HC32ADTR2G-Q pin-compatible with the standard 74LS32?
Yes - the MC74HC32ADTR2G-Q is identical in pinout to the 74LS32, including the same 14-pin TSSOP layout with VCC on Pin 14 and GND on Pin 7. However, due to differing logic families (HC vs. LS), voltage levels, drive strength, and timing, direct substitution requires verification of supply voltage, loading, and timing margins in the target circuit.
What is the typical power dissipation of the MC74HC32ADTR2G-Q at 5 V and 1 MHz?
At VCC = 5.0 V and f = 1 MHz, the typical power dissipation of the MC74HC32ADTR2G-Q is calculated as PD = CPD × VCC² × f + ICC × VCC = (20 pF × 4 × 5² × 10⁶) + (1 µA × 5 V) ≈ 0.5 mW + 5 µW ≈ 0.505 mW per gate, or ~2.02 mW for all four gates - well within the 833 mW TSSOP-14 package limit.
MC74HC32ADTR2G-Q Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74HC
- 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:
- 2V ~ 6V
- Current - Quiescent (Max):
- 1 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:
- 13ns @ 6V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
MC74HC32ADTR2G-Q FAQ
1.How can I place an order for MC74HC32ADTR2G-Q through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74HC32ADTR2G-Q 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 MC74HC32ADTR2G-Q reliable?
The price and inventory of MC74HC32ADTR2G-Q are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74HC32ADTR2G-Q is usually 5 days.
3.What payment methods are accepted for MC74HC32ADTR2G-Q?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74HC32ADTR2G-Q transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74HC32ADTR2G-Q?
MC74HC32ADTR2G-Q orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74HC32ADTR2G-Q 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 MC74HC32ADTR2G-Q?
For technical support, including MC74HC32ADTR2G-Q datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74HC32ADTR2G-Q requirements.
6.How does Aetrix verify that MC74HC32ADTR2G-Q is sourced from the original manufacturer or authorized distributors?
All MC74HC32ADTR2G-Q 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 MC74HC32ADTR2G-Q meets industry standards.
7.What is the process for return or replacement of MC74HC32ADTR2G-Q?
All MC74HC32ADTR2G-Q units undergo pre-shipment inspection (PSI). If there is an issue with MC74HC32ADTR2G-Q, 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 MC74HC32ADTR2G-Q part is unused and in its original packaging.
Return procedure for MC74HC32ADTR2G-Q:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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