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onsemi 74HC32DTR2G
- Part No.:
- 74HC32DTR2G
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
74HC32DTR2G.pdf
- Description:
- IC GATE OR 4CH 2-INP 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,967
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Product details
Overview
74HC32DTR2G from onsemi is a quad 2-input OR gate in TSSOP-14 package, operating from 2.0 V to 6.0 V, with propagation delay ≤19 ns at 6.0 V, output drive capability of 10 LSTTL loads, and guaranteed operation from –55 °C to +125 °C. It serves as a logic-level combiner in digital control subsystems for industrial PLC I/O modules.
For engineers reviewing the 74HC32DTR2G datasheet, pinout, applications, or equivalent options, this page delivers verified pin functions, JEDEC-compliant noise immunity, Pb-free TSSOP-14 mechanical data, and direct alternatives for logic gate replacement in space-constrained embedded designs.
Technical Context
The 74HC32DTR2G implements four independent CMOS OR gates using high-performance silicon-gate technology. Each gate accepts two inputs (A, B) and produces Y = A + B, with input thresholds defined by VIH ≥1.5 V (at VCC = 2.0 V) and VIL ≤0.5 V, ensuring compatibility with both CMOS and LSTTL outputs when pullup resistors are used.
It operates across the full industrial temperature range (–55 °C to +125 °C) with static input current ≤±0.1 µA at 6.0 V and output drive rated for ±25 mA per pin. The device meets JEDEC Std. 7A and features HBM ESD rating of 2000 V, supporting robust deployment in noisy factory-floor environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | Quad 2-input OR gate (Y = A + B), four independent channels |
| Supply Voltage Range | 2.0 V to 6.0 V - supports dual-supply systems and battery-powered logic interfaces |
| Propagation Delay | ≤13 ns at VCC = 6.0 V (CL = 50 pF) - enables use in sub-50 MHz synchronous logic paths |
| Output Drive | 10 LSTTL loads - directly drives legacy TTL inputs without buffer stages |
| Input Leakage | ±0.1 µA max at VCC = 6.0 V - ensures stable logic states with high-impedance pullups |
| ESD Rating | HBM 2000 V - meets IEC 61000-4-2 Level 3 for handling in uncontrolled assembly areas |
| Operating Temp | –55 °C to +125 °C - qualified for under-hood automotive and industrial motor control applications |
Pinout & Package
TSSOP-14 package (Case 948G), 5.0 mm × 4.4 mm footprint, 0.65 mm pitch, Pb-free, moisture sensitivity level 1 (MSL1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | A1 | First input of Gate 1 - must be tied to VCC or GND if unused |
| 2 | B1 | Second input of Gate 1 - shares same electrical characteristics as A1 |
| 3 | Y1 | Output of Gate 1 - capable of sourcing/sinking ±25 mA at VCC = 6.0 V |
| 4 | A2 | First input of Gate 2 - electrically isolated from other gates |
| 5 | B2 | Second input of Gate 2 - compatible with CMOS/NMOS/TTL logic families |
| 6 | Y2 | Output of Gate 2 - low output voltage ≤0.1 V at |IOUT| ≤ 20 µA |
| 7 | GND | Ground reference for all inputs/outputs - requires low-inductance connection |
| 8 | Y3 | Output of Gate 3 - matches AC timing specs of Y1/Y2/Y4 within ±10% |
| 9 | A3 | First input of Gate 3 - identical VIH/VIL thresholds across all inputs |
| 10 | B3 | Second input of Gate 3 - supports rise/fall times down to 400 ns at VCC = 6.0 V |
| 11 | Y4 | Output of Gate 4 - maximum transition time ≤19 ns (tTLH/tTHL) |
| 12 | A4 | First input of Gate 4 - input capacitance ≤10 pF minimizes loading on driving stage |
| 13 | B4 | Second input of Gate 4 - immune to noise spikes ≥0.4×VCC due to CMOS threshold design |
| 14 | VCC | Positive supply rail - decoupling capacitor (100 nF) required within 5 mm |
Key Features
| Feature | Design Value |
|---|---|
| CMOS input compatibility | Direct interface with 74HC/74HCT/74AHC families without level shifters |
| LSTTL output drive | Drives 10 standard TTL loads - eliminates need for discrete buffer transistors |
| Wide supply range | Operates from 2.0 V (low-power sensor nodes) to 6.0 V (industrial 5 V systems) |
| High noise immunity | CMOS threshold ratios ensure >40% noise margin at VCC = 4.5 V |
| Pb-free TSSOP package | RoHS-compliant, MSL1, compatible with lead-free reflow profiles (peak 260 °C) |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
|
Use Scenario: Combining multiple sensor fault signals into a single OR'd alert line for microcontroller interrupt input. IC Role / Device Role / Timing Role: Logic-level signal aggregation with deterministic propagation delay ≤19 ns and no added jitter. Use Value: Reduces MCU GPIO count by 4× while maintaining fail-safe response time under worst-case VCC = 2.0 V and TA = +125 °C. |
Use Scenario: Enabling power distribution to auxiliary lighting circuits only when door-open AND ignition-on signals are both asserted. IC Role / Device Role / Timing Role: Dual-input OR logic gate implementing safety-critical enable condition with <100 ns total path delay. Use Value: Eliminates need for discrete diode-OR network, improving reliability and reducing board area by 65% vs. through-hole solution. |
| Medical Infusion Pump UI Logic | Smart Energy Meter Status Indication |
|
Use Scenario: Generating audible alarm trigger when either low-battery OR occlusion-detection signal is active. IC Role / Device Role / Timing Role: Fail-safe combinatorial logic element with guaranteed operation at –40 °C and VCC = 2.7 V (coin-cell backup). Use Value: Meets IEC 60601-1 leakage current limits (<1 µA) due to sub-µA input leakage at all temperatures. |
Use Scenario: Driving LED status indicators from isolated microcontroller GPIOs via optocoupler outputs. IC Role / Device Role / Timing Role: Level-shifting buffer between 3.3 V MCU and 5 V LED driver, leveraging CMOS input compatibility. Use Value: Supports 100% duty-cycle LED drive with 5.2 mA sink capability at VOL ≤0.40 V, eliminating external current-limiting resistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad OR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC32PW | TSSOP-14, identical logic function and AC specs, but TI's version specifies tPLH ≤15 ns at VCC = 4.5 V (vs. onsemi's 19 ns) | Preferred for timing-critical clock-enable paths where sub-15 ns delay is mandatory | Select SN74HC32PW when tighter propagation delay distribution is required; verify layout compatibility with TI's thermal pad requirements |
| MC74HC32ADTR2G | Same onsemi die in SOIC-14 (D suffix); identical DC/AC specs but larger 8.75 mm × 3.9 mm footprint and higher thermal resistance (θJA = 140 °C/W vs. 164 °C/W) | Suitable for prototyping or legacy PCBs designed for SOIC, not space-constrained production boards | Choose MC74HC32ADTR2G only when TSSOP rework is impractical; expect 12% higher junction temperature at 25 mA load |
Compared with SN74HC32PW and MC74HC32ADTR2G, the 74HC32DTR2G offers optimal balance of miniaturization (TSSOP-14), industrial temperature support, and proven field reliability in motor control feedback loops - making it the default choice for new designs targeting IPC Class 2/3 assembly.
Availability
74HC32DTR2G is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, medical infusion pump UI logic, and smart energy meter status indication requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 74HC32DTR2G 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 (Nasdaq: ON) is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The 74HC32DTR2G belongs to onsemi's High-Speed CMOS logic family, engineered for interoperability with legacy TTL systems while enabling low-power, high-noise-immunity digital control in harsh environments.
FAQ
What is the maximum operating temperature for the 74HC32DTR2G?
The 74HC32DTR2G is fully specified from –55 °C to +125 °C across all electrical parameters including propagation delay, output drive, and input thresholds. This rating is validated per JEDEC JESD22-A108 and applies to the TSSOP-14 package under natural convection conditions with recommended PCB copper pour.
Does the 74HC32DTR2G require external pull-up resistors on inputs?
No - the 74HC32DTR2G inputs are CMOS-compatible and do not require pull-ups for proper logic operation. However, unused inputs must be externally tied to either VCC or GND to prevent floating states; leaving them open risks increased ICC and potential oscillation.
Can the 74HC32DTR2G drive LEDs directly?
Yes - each output of the 74HC32DTR2G can sink up to 5.2 mA at VOL ≤0.40 V (VCC = 6.0 V), sufficient to drive low-current indicator LEDs. For higher brightness or multiple LEDs, an external transistor stage is recommended to avoid exceeding absolute maximum ratings.
Is the 74HC32DTR2G pin-compatible with the 74LS32?
Yes - the 74HC32DTR2G has identical pinout to the 74LS32, including VCC on pin 14 and GND on pin 7. However, its CMOS inputs require pull-up resistors to interface with open-collector LSTTL outputs, unlike the LS32 which accepts direct TTL drive.
What is the typical power dissipation of the 74HC32DTR2G at 5 V operation?
At VCC = 5.0 V and 25 °C, the 74HC32DTR2G exhibits typical dynamic power dissipation of 20 µW per gate (CPD = 20 pF), yielding ~80 µW total for all four gates under no-load conditions. Quiescent ICC remains below 2.0 µA, making it suitable for always-on monitoring circuits.
74HC32DTR2G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74HC
- Package/Case:
- 14-TSSOP (0.173", 4.40mm 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:
- 13ns @ 6V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
74HC32DTR2G FAQ
1.How can I place an order for 74HC32DTR2G through Aetrix?
Please submit a Request for Quotation (RFQ) for 74HC32DTR2G 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 74HC32DTR2G reliable?
The price and inventory of 74HC32DTR2G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 74HC32DTR2G is usually 5 days.
3.What payment methods are accepted for 74HC32DTR2G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 74HC32DTR2G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 74HC32DTR2G?
74HC32DTR2G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 74HC32DTR2G 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 74HC32DTR2G?
For technical support, including 74HC32DTR2G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 74HC32DTR2G requirements.
6.How does Aetrix verify that 74HC32DTR2G is sourced from the original manufacturer or authorized distributors?
All 74HC32DTR2G 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 74HC32DTR2G meets industry standards.
7.What is the process for return or replacement of 74HC32DTR2G?
All 74HC32DTR2G units undergo pre-shipment inspection (PSI). If there is an issue with 74HC32DTR2G, 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 74HC32DTR2G part is unused and in its original packaging.
Return procedure for 74HC32DTR2G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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