SN74HC05DE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The SN74HC05DE4 is a hex inverter with open-drain outputs in the HC/UH CMOS logic family, supporting 2 V to 6 V supply operation and six independent single-input inverter channels. Open-drain outputs allow wired-AND bus sharing and voltage level translation up to the external pull-up rail. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 14
- Lifecycle
- OBSOLETE
- Datasheet
- SN74HC05DE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Open-drain outputs on all 6 channels enable wired-AND logic and passive voltage level translation to 5 V from a 3.3 V logic supply
- HC CMOS family operation from 2 V to 6 V with rail-to-rail compatibility supports both 3.3 V and 5 V mixed-voltage systems
- 6 independent inverter channels in a 14-pin package reduce component count and board area in multi-signal inversion applications
Applications
The SN74HC05DE4 is used in microcontroller interface circuits to translate 3.3 V open-drain I2C or SMBus signals to a 5 V bus by connecting the pull-up resistors to a 5 V rail, enabling legacy 5 V peripherals to communicate with modern 3.3 V SoCs. It serves in LED driver arrays and relay activation circuits where open-drain outputs directly sink current through the load without needing a separate driver transistor. The device is also found in programmable logic reset distribution circuits and bus arbitration designs where wired-AND combining of multiple open-drain inverter outputs implements a hardware fault-OR function.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G14 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | INVERTER |
| Max I(ol) | 0.006A |
| Number of Functions | 6 |
| Number of Inputs | 1 |
| Output Characteristics | OPEN-DRAIN |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP14,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.02mA |
| Prop. Delay@Nom-Sup | 29ns |
| Propagation Delay (tpd) | 145ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SN74HC05DE4:
Frequently Asked Questions
How do the open-drain outputs of SN74HC05DE4 enable voltage level translation between 3.3 V and 5 V logic?
With open-drain outputs, SN74HC05DE4 can pull a signal low to ground but relies on an external pull-up resistor tied to a 5 V rail for the high state. A 3.3 V input signal drives the gate while the output swings to 5 V through the pull-up, achieving bidirectional level translation with no active circuitry beyond the 4.7 kΩ to 10 kΩ pull-up resistor.
What is the maximum sink current per output pin of SN74HC05DE4?
Each open-drain output of SN74HC05DE4 can sink up to 6 mA at VOL below 0.33 V when operating from a 4.5 V supply. This is sufficient to drive small indicator LEDs directly through a 470 Ω series resistor or to pull down I2C bus lines at standard 400 kHz fast-mode speeds with the recommended 1 kΩ to 4.7 kΩ pull-up resistors.
How does SN74HC05DE4 compare to SN74HC04 for implementing wired-AND bus logic?
SN74HC04 has totem-pole push-pull outputs that cannot be wire-connected without bus contention, while SN74HC05DE4 open-drain outputs can share a common pull-up resistor to form a wired-AND node. Any of the 6 channels pulling low drives the shared node low, implementing a fault-reporting bus where multiple independent sources can assert the same interrupt line without external diodes.
At what supply voltage does SN74HC05DE4 achieve its fastest propagation delay for high-speed applications?
The SN74HC05DE4 achieves its minimum propagation delay of approximately 7 ns at a 6 V supply with a 50 pF load. At 5 V the typical propagation delay rises to about 10 ns, and at 2 V it increases to roughly 40 ns, so designs that require timing below 10 ns should operate from a 5 V or 6 V supply rail.
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Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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