CD74HC4049EE4 Texas Instruments Integrated Circuit (Dual-In-Line Packages) In Stock
The CD74HC4049EE4 is a high-speed CMOS hex inverting buffer and CMOS-to-TTL level translator from Texas Instruments in a 16-pin PDIP package, featuring 6 inverter channels with 50 pF load capacitance rating and 4mA output drive. Ideal for logic level conversion and signal buffering. Available from stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Dual-In-Line Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD74HC4049EE4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Six independent inverting buffer channels enabling CMOS-to-TTL level translation without external pull-up resistors in mixed-logic systems
- High-speed HC/UH CMOS family operation offering significantly faster propagation delays than legacy 4000B series CMOS for demanding digital designs
- 4mA output sink current (IOL) per channel providing sufficient drive strength for TTL loads and LED indicators directly from the output
- RoHS-compliant 16-pin PDIP through-hole package with 50 pF load capacitance rating for breadboard prototyping and through-hole PCB assembly
Applications
The CD74HC4049EE4 is primarily used for voltage level translation between 5V CMOS logic and TTL-level systems, allowing CMOS outputs to drive TTL inputs directly without external buffers. Its six inverting channels make it efficient for bus buffering, logic signal inversion, and driving multiple TTL loads in parallel from a single CMOS source. It is also used in clock signal distribution, display driver interfaces, and legacy 4000B-series CMOS replacement applications where higher speed and TTL compatibility are required.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | CMOS-TTL LEVEL TRANSLATOR |
| Family | HC/UH |
| JESD-30 Code | R-PDIP-T16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | INVERTER |
| Max I(ol) | 0.004A |
| Number of Functions | 6 |
| Number of Inputs | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Packing Method | TUBE |
| Power Supply Current-Max (ICC) | 0.04mA |
| Prop. Delay@Nom-Sup | 26ns |
| Propagation Delay (tpd) | 130ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 2V |
| Supply Voltage-Nom (Vsup) | 4.5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia, Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD74HC4049EE4:
Frequently Asked Questions
What is the CD74HC4049EE4 and how many channels does it have?
The CD74HC4049EE4 is a hex (6-channel) inverting buffer and CMOS-to-TTL level translator from Texas Instruments. It contains six independent inverter stages in one 16-pin PDIP package, making it a compact and economical solution for translating logic levels or inverting and buffering multiple digital signals simultaneously.
How does the CD74HC4049EE4 perform CMOS-to-TTL level translation?
The CD74HC4049EE4 accepts CMOS input voltage levels and produces TTL-compatible output levels with sufficient drive strength (4mA IOL) to directly interface with standard TTL logic gates. Unlike many HC-family devices, it can accept input voltages higher than VCC, making it particularly suited for translating 5V CMOS signals into 3.3V TTL-compatible logic in mixed-voltage digital systems.
What is the output drive capability of the CD74HC4049EE4?
Each inverter channel of the CD74HC4049EE4 can sink a maximum of 4mA (IOL) at its output. This is sufficient to drive standard TTL logic inputs, low-current LEDs (with appropriate series resistor), and typical CMOS loads rated at 50 pF capacitance, while maintaining valid TTL output voltage levels within the specification sheet limits.
What package does the CD74HC4049EE4 come in and is it RoHS compliant?
The CD74HC4049EE4 is packaged in a 16-pin PDIP (Plastic Dual Inline Package) through-hole format (JESD-30 code R-PDIP-T16). The E4 suffix confirms it is RoHS compliant and Pb-free, meeting international environmental regulations. Its through-hole format is ideal for hand assembly, prototyping on breadboards, and applications requiring mechanical durability.
What are typical applications for the CD74HC4049EE4?
Typical applications include CMOS-to-TTL level translation in mixed-logic PCB designs, logic signal inversion in control systems, bus buffering to extend fanout beyond what a single CMOS gate can drive, LED segment display drivers, clock signal buffering and distribution, and as a drop-in high-speed replacement for the slower CD4049B in existing designs requiring faster switching speeds.
Related Guides
ATF16V8B-15JU Selection Guide: Replacing Legacy 5V SPLD And GAL Logic
How to select and source ATF16V8B-15JU for legacy 5V programmable logic designs, including package, timing, programmer, and substitution checks.
Jun 4, 2026
DP83848IVVX/NOPB Application Note: Industrial 10/100 Ethernet PHY Design Checklist
Practical design checklist for using DP83848IVVX/NOPB in industrial 10/100 Ethernet PHY boards, covering interface mode, clocking, layout, validation, and sourcing.
Jun 4, 2026
DP83848 10/100 Mbps Ethernet PHY Transceiver: How to Choose the Right Variant
A complete selection guide for the DP83848 family: compare temperature grades, packages, JTAG support, and interface options across all five variants.
Jun 2, 2026
LM5156 Wide-VIN Boost/SEPIC/Flyback Controller: How to Choose the Right Variant
A concise selection guide for the LM5156 and LM51561 family: how to choose between automotive vs industrial grade, spread-spectrum vs fixed-frequency, and WSON-8 vs HTSSOP-14 package.
Jun 2, 2026
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
TPIC84000TPWPRQ1
Small Outline Packages
Integrated Circuit
TPS2115PWR
Small Outline Packages
Integrated Circuit
OPA2613IDRG4
Small Outline Packages
Integrated Circuit
TPS71518DCKRG4
SOT23 (5-Pin)
Integrated Circuit
DAC8771RGZR
Quad Flat No-Lead
Integrated Circuit
DS90CR217MTD/NOPB
Small Outline Packages
Integrated Circuit
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”