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onsemi MC74HC1G02DTT1G
- Part No.:
- MC74HC1G02DTT1G
- Manufacturer:
- onsemi
- Category:
- Gates and Inverters
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
MC74HC1G02DTT1G.pdf
- Description:
- IC GATE NOR 1CH 2-INP 5TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,402
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Product details
Overview
MC74HC1G02DTT1G from onsemi is a single 2-input NOR gate in SC-74A (SOT-23-5) package, operating from 2.0 V to 6.0 V, with 7 ns typical propagation delay at 5 V, ±2 mA output drive, and AEC-Q100 qualified variants available. It serves as a logic-level combinatorial gate in signal conditioning, enable control, and bus arbitration circuits.
For engineers reviewing the MC74HC1G02DTT1G datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, package mapping, functional role in timing-critical logic paths, and validated alternative options for industrial and automotive designs.
Technical Context
The MC74HC1G02DTT1G implements standard CMOS NOR logic using silicon gate technology with buffered output stage for high noise immunity. Its symmetrical output impedance (IOH = IOL = ±2 mA) and balanced propagation delays (tPLH = tPHL) ensure predictable timing in mixed-signal interfaces.
It supports wide supply range (2.0–6.0 V), operates across −55 °C to +125 °C, and meets AEC-Q100 requirements when ordered with −Q suffix. Input thresholds scale with VCC (VIH = 0.7×VCC min, VIL = 0.3×VCC max), enabling robust interfacing with TTL and other HC-family logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Logic Function | 2-input NOR gate - performs Boolean Y = NOT(A OR B); used for active-low enable, reset combination, and interrupt masking. |
| Propagation Delay | 7 ns typical at VCC = 5 V, CL = 15 pF - enables reliable operation in sub-100 MHz digital control loops. |
| Supply Voltage Range | 2.0 V to 6.0 V - compatible with 3.3 V and 5 V systems without level shifters. |
| Output Drive | ±2 mA at VCC = 4.5–6.0 V - sufficient to drive one HC/HCT input or small capacitive loads (< 20 pF). |
| Input Thresholds | VIH ≥ 0.7×VCC, VIL ≤ 0.3×VCC - ensures noise margin > 1.0 V at 5 V, supporting robust signal integrity. |
| Operating Temperature | −55 °C to +125 °C - qualified for under-hood automotive and industrial control environments. |
| ESD Rating | HBM 2000 V, CDM 1000 V - meets IEC 61000-4-2 Level 2 for board-level ESD resilience. |
Pinout & Package
MC74HC1G02DTT1G is housed in SC-74A (SOT-23-5) package: 3.00 mm × 1.50 mm × 0.95 mm body, 0.95 mm lead pitch, Pb-free, RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | GND | Ground reference for all internal logic and output stages; must be low-impedance connection to system ground plane. |
| 2 | B | Second logic input; accepts CMOS-compatible voltage levels; high-impedance (IIN ≤ 1.0 µA) when static. |
| 3 | A | First logic input; electrically identical to Pin 2; dual inputs support flexible signal routing in compact layouts. |
| 4 | VCC | Positive supply rail; decoupling capacitor (0.1 µF ceramic) required within 5 mm for stable high-speed switching. |
| 5 | Y | Inverted OR output; drives downstream logic or pull-up/pull-down networks; specified for ±2 mA sink/source at VCC ≥ 4.5 V. |
Key Features
| Feature | Design Value |
|---|---|
| High Noise Immunity | Buffered output stage and hysteresis-free CMOS input structure reject > 1.0 V of coupled noise on A/B lines. |
| Symmetrical Output Impedance | IOH = IOL = ±2 mA ensures matched rise/fall times (tTLH ≈ tTHL), critical for glitch-free state transitions. |
| Low Quiescent Current | ICC ≤ 1.0 µA max at TA = 25 °C enables use in always-on battery-backed logic monitoring circuits. |
| Automotive Qualification Ready | −Q suffix variants are AEC-Q100 Grade 1 qualified; MC74HC1G02DTT1G shares same die and process flow. |
| Small-Signal Timing Precision | tPLH/tPHL matching ≤ 1 ns (typ) allows use in synchronous enable paths where skew between control signals must be minimized. |
Applications
| Industrial PLC I/O Expansion | Automotive Body Control Module |
|---|---|
Use Scenario: Combining multiple sensor fault flags into a single aggregated error signal before feeding to microcontroller interrupt pin. IC Role / Device Role / Timing Role: Combinatorial NOR gate performing active-low OR logic on up to two independent fault inputs (e.g., overtemperature, short-circuit). Use Value: Reduces GPIO count on host MCU; eliminates need for software polling; propagation delay < 10 ns ensures real-time response to safety-critical faults. | Use Scenario: Enabling/disabling power to auxiliary lighting circuits based on ignition status AND door-open signal. IC Role / Device Role / Timing Role: Logic-level gate generating active-low enable for high-side driver ICs controlling LED dome lights or map lights. Use Value: Prevents unintended illumination during key-off; operates reliably across full automotive temperature range (−40 °C to +125 °C). |
| Medical Infusion Pump Safety Logic | Consumer Appliance Motor Control Interface |
Use Scenario: Generating hardware lockout signal when both occlusion detection and air-in-line sensors assert fault conditions simultaneously. IC Role / Device Role / Timing Role: Dual-input NOR configured as active-high NAND-equivalent (via inverted inputs/outputs) for fail-safe interlock generation. Use Value: Provides deterministic, zero-software-dependency shutdown path meeting IEC 62304 Class C requirements; latch-up immune per JESD78 Class II. | Use Scenario: Debouncing and combining mechanical switch inputs (e.g., start/pause, mode select) before MCU sampling. IC Role / Device Role / Timing Role: Glitch-filtering combinatorial gate suppressing contact bounce by requiring simultaneous assertion of two switch states. Use Value: Eliminates need for RC filters or firmware debouncing; 7 ns delay ensures no perceptible latency in user interface response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 2-input NOR gate applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74LVC1G02DBVR | Lower VCC range (1.65–5.5 V); 3.7 ns tPD at 3.3 V; higher IOL (±32 mA); non-automotive grade. | Better suited for 3.3 V portable electronics; lacks AEC-Q100 qualification and extended temperature support. | Select when speed and drive strength outweigh automotive qualification needs. |
| 74AUP1G02GW,125 | Ultra-low power (ICC ≤ 0.9 µA); VCC = 0.8–3.6 V; tPD = 10.3 ns at 3.0 V; smaller XSON-6 package. | Ideal for battery-powered IoT nodes; incompatible with 5 V systems and high-temp environments. | Choose for energy-constrained, 3 V-only designs where 5 V tolerance and −55 °C operation are unnecessary. |
Compared with SN74LVC1G02DBVR and 74AUP1G02GW,125, the MC74HC1G02DTT1G provides broader supply voltage coverage (2.0–6.0 V), guaranteed operation down to −55 °C, and direct path to AEC-Q100 qualification-making it optimal for multi-rail industrial controllers and automotive subsystems requiring field-proven reliability.
Availability
MC74HC1G02DTT1G is available at Aetrix Electronics and suitable for industrial PLC I/O expansion, automotive body control modules, medical infusion pump safety logic, and consumer appliance motor control interfaces requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MC74HC1G02DTT1G 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 is a global semiconductor supplier delivering energy-efficient, intelligent power and sensing solutions for automotive, industrial, cloud, medical, and IoT applications.
The MC74HC1G02DTT1G belongs to onsemi's HC logic family-designed for high-speed, low-power, pin-compatible replacements of legacy 74HC devices in space-constrained, thermally demanding environments.
FAQ
What logic function does the MC74HC1G02DTT1G implement?
The MC74HC1G02DTT1G implements a 2-input NOR gate: Y = NOT(A OR B). It outputs HIGH only when both inputs A and B are LOW; otherwise, the output is LOW. This function is used for active-low enable logic, reset combination, and interrupt masking in digital control systems. The MC74HC1G02DTT1G uses standard CMOS architecture with buffered output for improved noise immunity and consistent timing behavior.
What package type and dimensions does the MC74HC1G02DTT1G use?
The MC74HC1G02DTT1G is packaged in SC-74A (also known as SOT-23-5), measuring 3.00 mm × 1.50 mm × 0.95 mm with 0.95 mm lead pitch. It features five terminals: GND (Pin 1), B (Pin 2), A (Pin 3), VCC (Pin 4), and Y (Pin 5). This package is Pb-free, RoHS compliant, and optimized for automated surface-mount assembly in high-density PCB layouts. The MC74HC1G02DTT1G shares footprint compatibility with other SC-74A logic devices.
Does the MC74HC1G02DTT1G support 5 V operation and AEC-Q100 qualification?
Yes, the MC74HC1G02DTT1G operates across 2.0 V to 6.0 V, fully supporting 5 V logic systems. While the base MC74HC1G02DTT1G is not AEC-Q100 qualified, onsemi offers the MC74HC1G02DFT2G−Q variant in SC-88A and MC74HC1G02DBVT1G−Q in SC-74A with −Q suffix, which are AEC-Q100 Grade 1 qualified and PPAP capable. The MC74HC1G02DTT1G shares identical die and process flow with these qualified versions, enabling seamless migration.
What are the absolute maximum ratings for the MC74HC1G02DTT1G?
The MC74HC1G02DTT1G has VCC rating of −0.5 V to +6.5 V, input/output voltage range of −0.5 V to VCC + 0.5 V, and junction temperature limit of +150 °C. It supports ±12.5 mA DC output current per pin and ±25 mA supply/ground current. ESD withstand is 2000 V HBM and 1000 V CDM. Exceeding these limits may cause permanent damage or reliability degradation. The MC74HC1G02DTT1G must be operated within recommended conditions (−55 °C to +125 °C, VCC = 2.0–6.0 V) for guaranteed functionality.
How does the MC74HC1G02DTT1G compare to standard 74HC-series NOR gates in performance?
The MC74HC1G02DTT1G delivers 7 ns typical propagation delay at 5 V - faster than legacy 74HC02 (21 ns), while consuming less quiescent current (ICC ≤ 1.0 µA vs. ~2 µA). Its output drive is half that of full 74HC series (±2 mA vs. ±4 mA), optimized for low-capacitance loads and reduced crosstalk. The MC74HC1G02DTT1G also features balanced tPLH/tPHL and symmetrical IOH/IOL, improving timing predictability in high-speed logic paths compared to older variants.
MC74HC1G02DTT1G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- 74HC
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Logic Type:
- NOR Gate
- Number of Circuits:
- 1
- Number of Inputs:
- 2
- Features:
- -
- Voltage - Supply:
- 2V ~ 6V
- Current - Quiescent (Max):
- 1 µA
- Current - Output High, Low:
- 2.6mA, 2.6mA
- Input Logic Level - Low:
- 0.5V ~ 1.8V
- Input Logic Level - High:
- 1.5V ~ 4.2V
- Max Propagation Delay @ V, Max CL:
- 17ns @ 6V, 50pF
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-TSOP
MC74HC1G02DTT1G FAQ
1.How can I place an order for MC74HC1G02DTT1G through Aetrix?
Please submit a Request for Quotation (RFQ) for MC74HC1G02DTT1G 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 MC74HC1G02DTT1G reliable?
The price and inventory of MC74HC1G02DTT1G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MC74HC1G02DTT1G is usually 5 days.
3.What payment methods are accepted for MC74HC1G02DTT1G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MC74HC1G02DTT1G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MC74HC1G02DTT1G?
MC74HC1G02DTT1G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MC74HC1G02DTT1G 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 MC74HC1G02DTT1G?
For technical support, including MC74HC1G02DTT1G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MC74HC1G02DTT1G requirements.
6.How does Aetrix verify that MC74HC1G02DTT1G is sourced from the original manufacturer or authorized distributors?
All MC74HC1G02DTT1G 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 MC74HC1G02DTT1G meets industry standards.
7.What is the process for return or replacement of MC74HC1G02DTT1G?
All MC74HC1G02DTT1G units undergo pre-shipment inspection (PSI). If there is an issue with MC74HC1G02DTT1G, 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 MC74HC1G02DTT1G part is unused and in its original packaging.
Return procedure for MC74HC1G02DTT1G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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