CD74HC4049NSRE4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The CD74HC4049NSRE4 is a hex inverting buffer and CMOS-to-TTL level translator in a 16-pin SOIC package. It features 6 independent inverting channels with 50 pF load capacitance for reliable high-speed signal conditioning. Available worldwide with competitive pricing and fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC4049NSRE4 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
What are the key features of CD74HC4049NSRE4?
- Six independent inverting channels with CMOS-to-TTL level translation capability for mixed-logic system integration
- High-speed HC/UH CMOS family with 50 pF load capacitance and low 4 mA output current per channel
- 16-pin SOIC package (JESD-30 R-PDSO-G16) with tape-and-reel packaging (SRE4) for automated SMT assembly
What is CD74HC4049NSRE4 used for?
The CD74HC4049NSRE4 is widely used in digital logic interfacing where CMOS outputs must drive TTL inputs, eliminating the need for dedicated level-shifter ICs in industrial control boards and PLC backplanes. Its six inverting channels support signal conditioning in bus buffering, fanout expansion, and polarity correction for data communication lines operating at 3.3 V to 5 V. The tape-and-reel format suits high-volume automated assembly in consumer electronics, telecommunication equipment, and embedded computing modules.
What are the specifications of CD74HC4049NSRE4?
| YTEOL | 0 |
| Additional Feature | CMOS-TTL LEVEL TRANSLATOR |
| Family | HC/UH |
| JESD-30 Code | R-PDSO-G16 |
| 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 | SOP16,.3 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| 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 | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia |
Where can I find the CD74HC4049NSRE4 datasheet?
CD74HC4049NSRE4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC4049NSRE4?
Compatible alternatives and drop-in replacements for CD74HC4049NSRE4:
Frequently Asked Questions
How does the CD74HC4049NSRE4 handle CMOS-to-TTL level translation across its 6 channels?
The CD74HC4049NSRE4 accepts CMOS-level inputs and drives TTL-compatible outputs across all 6 inverting channels simultaneously, with a maximum output low current (I(ol)) of 4 mA per channel. This makes it suitable for directly interfacing 3.3 V CMOS logic to 5 V TTL devices without external resistors or discrete level-shift circuits.
For a PLC backplane design, what load capacitance can each CD74HC4049NSRE4 channel handle?
Each of the 6 inverting buffer channels in the CD74HC4049NSRE4 is rated for 50 pF load capacitance, which covers typical PCB trace loads in PLC backplane and industrial control designs. At this capacitance with a 5 V supply, propagation delays remain within the high-speed HC family specification, ensuring reliable signal timing across the backplane.
When is the CD74HC4049NSRE4 preferred over a dedicated logic-level translator IC for a new board design?
The CD74HC4049NSRE4 is preferred when a design already uses HC-family logic and needs to invert and buffer up to 6 signals with CMOS-to-TTL compatibility in a single 16-pin SOIC footprint. It eliminates a dedicated translator IC, saving board space, reducing BOM cost, and simplifying layout—particularly when output current of 4 mA per channel is sufficient and tape-and-reel (SRE4) packaging aligns with automated SMT production.
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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.
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