CD74HC4049EG4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CD74HC4049EG4 is a hex inverting buffer with 6 independent CMOS inverter channels housed in a 16-pin DIP package, operating from 2 V to 6 V supply with propagation delays as low as 8 ns at 5 V. Its input voltage tolerance above VCC allows level-shifting from higher-voltage logic down to the operating rail. Available from major distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD74HC4049EG4 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.2066(MOQ 1800)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of CD74HC4049EG4?
- 6 independent inverting buffer channels in a single 16-pin DIP package for compact logic inversion
- Input voltage tolerance above VCC enables direct level-shifting from 5 V logic down to 3.3 V CMOS rails
- Wide supply range from 2 V to 6 V supporting both 3.3 V and 5 V system designs
- Propagation delay as low as 8 ns at 5 V with 50 pF load for medium-speed signal conditioning
What is CD74HC4049EG4 used for?
The CD74HC4049EG4 is commonly used for logic-level translation between 5 V TTL outputs and 3.3 V CMOS inputs in mixed-voltage embedded designs. Its six inverter channels also serve as signal buffers and line drivers in clock distribution networks and bus isolation circuits. The 16-pin DIP packaging makes it convenient for prototyping and breadboard-based designs in industrial control and test equipment.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the CD74HC4049EG4 datasheet?
CD74HC4049EG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC4049EG4?
Compatible alternatives and drop-in replacements for CD74HC4049EG4:
Frequently Asked Questions
How does CD74HC4049EG4 enable 5 V to 3.3 V logic-level translation?
The CD74HC4049EG4 inputs tolerate voltages up to 10 V regardless of VCC, so when VCC is set to 3.3 V, a 5 V input still registers as a valid logic high. The output then swings between 0 V and 3.3 V, providing clean level-shifted inverted signals without external clamping diodes or resistors.
What propagation delay should be budgeted when using CD74HC4049EG4 in a 5 V clock buffer chain?
At 5 V supply with a 50 pF load, propagation delay through each CD74HC4049EG4 inverter stage is typically 8 ns. For a two-inverter non-inverting buffer configuration, plan for approximately 16 ns total delay, which fits within setup-time margins of most microcontrollers clocked below 30 MHz.
Can CD74HC4049EG4 directly replace a CD4049UBE in an existing 5 V circuit?
CD74HC4049EG4 is a direct pin-compatible upgrade to CD4049UBE in most 5 V applications. The HC-family device offers significantly lower propagation delay (8 ns vs. approximately 60 ns for 4049UBE at 5 V) and higher output drive current of 4 mA compared to the 1 mA typical for the unbuffered CMOS version.
How many CD74HC4049EG4 channels are needed to buffer a 6-line address bus with inverted polarity?
A single CD74HC4049EG4 provides exactly 6 inverting channels, sufficient to simultaneously buffer all 6 address lines of an 8-bit address space (A0–A5) with inverted polarity output in one package. For 8 address lines (A0–A7), two channels from a second device are needed, requiring 2 packages total.
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Why Buy from FindMyChip
About Texas Instruments
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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1800+ | $0.2066 | $371.93 |
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