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Texas Instruments SN74HCT04DR
- Part No.:
- SN74HCT04DR
- Manufacturer:
- Texas Instruments
- Category:
- Gates and Inverters
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SN74HCT04DR.pdf
- Description:
- IC INVERTER 6CH 1-INP 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:9,248
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Product details
Overview
SN74HCT04DR from Texas Instruments is a hex inverter IC in SOIC-14 package, performing six independent Boolean Y = A (inversion) functions at 4.5–5.5 V supply. It delivers ±4-mA output drive, 13 ns typical propagation delay, and supports TTL-compatible inputs for logic-level translation in digital control systems.
For engineers reviewing the SN74HCT04DR datasheet, SN74HCT04DR pinout, SN74HCT04DR application, or SN74HCT04DR equivalent, this page provides verified functional identity, SOIC-14 package mapping, confirmed 14-pin inverter topology, and two validated alternative parts with documented electrical and application differences.
Technical Context
The SN74HCT04DR implements six identical CMOS-based inverters with TTL-voltage-compatible inputs, enabling direct interfacing with legacy LS-TTL logic without level-shifting. Its architecture ensures rail-to-rail output swing and low input current (≤1 µA), minimizing loading on upstream drivers.
It operates strictly within 4.5–5.5 V VCC, with guaranteed switching performance across –40°C to +85°C ambient. Propagation delay (tpd = 13 ns typ @ 5.5 V, CL = 50 pF) and transition time (tt = 8 ns typ) are specified under defined load and temperature conditions - not extrapolated or derated.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 4.5 V to 5.5 V - defines strict 5-V system compatibility; operation outside this range invalidates all AC/DC specs. |
| tpd (Propagation Delay) | 13 ns typical @ 5.5 V, CL = 50 pF - determines maximum clock/data rate in synchronous logic paths. |
| Output Drive | ±4 mA @ 5 V - sufficient to drive 10 LSTTL loads directly, eliminating need for buffer stages in fanout-critical nodes. |
| ICC (Supply Current) | 20 µA max @ 5.5 V - enables low-static-power operation in battery-backed or energy-sensitive control logic. |
| Input Compatibility | TTL-voltage compatible (VIH = 2.0 V min, VIL = 0.8 V max) - allows seamless integration with 74LS/74ALS families without external biasing. |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded control, motor drives, and instrumentation environments. |
Pinout & Package
SN74HCT04DR is housed in a 14-pin SOIC (Small Outline Integrated Circuit) package, 8.65 mm × 3.90 mm body size, 1.75 mm max height, with standard 1.27 mm pitch and gull-wing leads. Pin 1 is marked by a beveled corner or notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 3, 5, 9, 11, 13 | Inverter Input (A1–A6) | Accepts TTL-compatible logic signals; must be tied high or low if unused to prevent floating inputs and undefined outputs. |
| 2, 4, 6, 8, 10, 12 | Inverter Output (Y1–Y6) | Provides inverted logic-level output with ±4-mA drive capability; capable of sourcing/sinking up to 25 mA absolute max. |
| 7 | GND | Ground reference for all internal circuitry and output stages; requires low-impedance connection to system ground plane. |
| 14 | VCC | Positive supply terminal; requires local 0.1-µF bypass capacitor placed ≤2 mm from pin to suppress high-frequency noise and ensure stable switching. |
Key Features
| Feature | Design Value |
|---|---|
| Hex inverter function | Six independent Y = A inverters in one SOIC-14 package - reduces board space and component count vs. discrete gate solutions. |
| Low ICC | 20 µA max supply current - minimizes quiescent power in always-on control logic, supporting energy-efficient system design. |
| TTL-compatible inputs | VIH ≥ 2.0 V, VIL ≤ 0.8 V - eliminates need for external pull-up resistors or level translators when interfacing with 74LS-family devices. |
| 13 ns tpd @ 5.5 V | Enables reliable operation in 30-MHz+ digital timing paths with margin; measured under standardized CL = 50 pF load. |
| SOIC-14 RoHS-compliant | NIPDAU lead finish, MSL Level-1, 260°C peak reflow - supports automated SMT assembly and long-term supply continuity. |
Applications
| Industrial PLC I/O Conditioning | Digital Signal Polarity Correction |
|---|---|
|
Use Scenario: Inverting sensor status signals (e.g., active-low limit switches) before feeding into microcontroller GPIOs with fixed interrupt polarity. IC Role / Device Role / Timing Role: Logic-level inversion with deterministic 13 ns delay; no timing skew between channels due to matched internal structure. Use Value: Eliminates software-based bit-flipping, reducing firmware complexity and ensuring sub-20 ns response consistency across six parallel inputs. |
Use Scenario: Correcting inverted data bus lines from legacy peripherals (e.g., certain UART transceivers or memory controllers) before connecting to FPGA I/O banks. IC Role / Device Role / Timing Role: Parallel signal inversion with TTL-compatible thresholds - preserves setup/hold timing margins while restoring logical polarity. Use Value: Enables drop-in integration of non-standard peripherals without PCB redesign or FPGA logic resource overhead. |
| Motor Driver Enable Logic | LED Display Segment Drivers |
|
Use Scenario: Generating complementary enable signals for H-bridge gate drivers where one side requires active-high and the other active-low control. IC Role / Device Role / Timing Role: Six-channel inverter providing matched propagation delay and drive strength - critical for preventing shoot-through during direction transitions. Use Value: Guarantees <1 ns inter-channel skew, enabling safe dead-time implementation in cost-sensitive motor control boards. |
Use Scenario: Driving common-anode 7-segment LED displays where segment anodes connect to VCC and cathodes require active-low control. IC Role / Device Role / Timing Role: Low-power inverter buffering MCU GPIO outputs - sustains 4-mA sink per segment without external transistors. Use Value: Reduces BOM count by replacing six discrete NPN/PNP pairs; maintains consistent brightness across segments via matched output impedance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar hex inverter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN74HC04DR | CMOS-input thresholds (VIH = 3.15 V min), wider VCC range (2–6 V), higher tpd (19 ns typ @ 6 V). | Not TTL-compatible; unsuitable for direct LS-TTL interface without pull-ups; better for mixed-voltage or battery-powered designs. | Select SN74HC04DR only if system uses pure CMOS logic or requires 2–6 V flexibility - not as a drop-in replacement for SN74HCT04DR. |
| MC74HCT04ADR2G | Identical electrical specs and pinout; manufactured by ON Semiconductor; same SOIC-14 package, RoHS-compliant, MSL-1 rating. | Functionally interchangeable in all SN74HCT04DR applications; validated for industrial temp range (–40°C to +85°C). | Choose MC74HCT04ADR2G for dual-sourcing assurance or regional supply chain resilience - no design or layout changes required. |
Compared with SN74HCT04DR, SN74HC04DR lacks TTL input compatibility and exhibits slower switching at 5 V, while MC74HCT04ADR2G matches all key parameters and qualifies as a second-source option with identical thermal and mechanical behavior.
Availability
SN74HCT04DR is available at Aetrix Electronics and suitable for industrial PLC I/O conditioning, motor driver enable logic, digital signal polarity correction, and LED display segment driving requiring stable component supply and long-term manufacturability.
Supply support for SN74HCT04DR 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and logic solutions, with over 50 years of innovation in industrial and automotive electronics.
The SN74HCT04DR belongs to TI's 74HCT logic family, engineered specifically for TTL-to-CMOS interfacing in industrial control, instrumentation, and legacy-system upgrade applications.
FAQ
What is the maximum operating temperature for SN74HCT04DR?
The SN74HCT04DR is rated for operation from –40°C to +85°C ambient temperature. This industrial-grade specification is validated per TI's characterization testing and applies to all DC and AC parameters in the datasheet - including propagation delay, output drive, and input thresholds - across the full range.
Does SN74HCT04DR require external pull-up resistors on its inputs?
No, SN74HCT04DR does not require external pull-up resistors because its inputs are TTL-voltage compatible (VIH ≥ 2.0 V, VIL ≤ 0.8 V). However, all unused inputs must be actively tied to VCC or GND - floating inputs can cause excessive ICC and unpredictable output states.
Can SN74HCT04DR drive a 50-pF capacitive load reliably?
Yes, SN74HCT04DR's switching characteristics - including tpd = 13 ns typ and tt = 8 ns typ - are explicitly characterized at CL = 50 pF per output. The device maintains full output drive (±4 mA) and voltage swing (VOH ≥ 3.7 V, VOL ≤ 0.33 V) under this load condition at 5.5 V VCC and 25°C.
Is SN74HCT04DR pin-compatible with SN74HC04DR?
Yes, SN74HCT04DR and SN74HC04DR share identical SOIC-14 pinouts and functional assignments. However, they are not functionally interchangeable due to differing input thresholds: SN74HCT04DR accepts TTL levels, while SN74HC04DR requires CMOS-level inputs (VIH ≥ 3.15 V at 6 V).
What is the recommended bypass capacitor for SN74HCT04DR?
Texas Instruments recommends a 0.1-µF ceramic capacitor placed as close as possible (≤2 mm) to the VCC (pin 14) and GND (pin 7) pins of SN74HCT04DR. This minimizes high-frequency supply noise and ensures stable switching performance - especially critical when driving multiple LSTTL loads simultaneously.
SN74HCT04DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- 74HCT
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Logic Type:
- Inverter
- Number of Circuits:
- 6
- Number of Inputs:
- 1
- Features:
- -
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Quiescent (Max):
- 2 µA
- Current - Output High, Low:
- 4mA, 4mA
- Input Logic Level - Low:
- 0.8V
- Input Logic Level - High:
- 2V
- Max Propagation Delay @ V, Max CL:
- 18ns @ 5.5V, 50pF
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
SN74HCT04DR FAQ
1.How can I place an order for SN74HCT04DR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN74HCT04DR 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 SN74HCT04DR reliable?
The price and inventory of SN74HCT04DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN74HCT04DR is usually 5 days.
3.What payment methods are accepted for SN74HCT04DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN74HCT04DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN74HCT04DR?
SN74HCT04DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN74HCT04DR 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 SN74HCT04DR?
For technical support, including SN74HCT04DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN74HCT04DR requirements.
6.How does Aetrix verify that SN74HCT04DR is sourced from the original manufacturer or authorized distributors?
All SN74HCT04DR 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 SN74HCT04DR meets industry standards.
7.What is the process for return or replacement of SN74HCT04DR?
All SN74HCT04DR units undergo pre-shipment inspection (PSI). If there is an issue with SN74HCT04DR, 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 SN74HCT04DR part is unused and in its original packaging.
Return procedure for SN74HCT04DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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