CD74HC4049NS Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The CD74HC4049NS is a hex inverting buffer in a 16-pin SOIC package, part of the high-speed CMOS HC/UH family. It provides 6 independent inverting channels with CMOS-to-TTL level translation capability and 4 mA sink current. Available worldwide for logic interfacing applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD74HC4049NS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.5221(MOQ 285)
- 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 CD74HC4049NS?
- 6 independent inverting buffer channels with CMOS-to-TTL level translation in a single 16-SOIC package
- High-speed HC CMOS family with 50 pF load capacitance support and 4 mA output sink current
- Wide supply voltage range enabling mixed-voltage system interfacing between CMOS and TTL logic families
What is CD74HC4049NS used for?
The CD74HC4049NS is used in mixed-logic designs where CMOS signal levels must be translated to TTL-compatible outputs, such as microcontroller-to-peripheral interfaces. Its 6 inverting buffers allow simultaneous signal conditioning of multiple data lines in bus driver and line repeater circuits. The 16-SOIC package suits compact PCB layouts in communication, industrial control, and consumer electronics.
What are the specifications of CD74HC4049NS?
| Date Of Intro | 2018-09-27 |
| 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 |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.04mA |
| Prop. Delay@Nom-Sup | 26ns |
| Propagation Delay (tpd) | 130ns |
| 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 (Ni/Pd/Au) |
| 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 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Malaysia |
Where can I find the CD74HC4049NS datasheet?
CD74HC4049NS Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for CD74HC4049NS?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What output drive capability does the CD74HC4049NS provide per channel?
Each of the 6 inverting buffer channels in the CD74HC4049NS can sink up to 4 mA at the output, with a load capacitance rating of 50 pF. This makes it suitable for driving TTL inputs and short PCB traces at standard 5 V CMOS supply levels without requiring external buffers.
How does the CD74HC4049NS perform as a CMOS-to-TTL level translator in a 3.3 V to 5 V interface?
The CD74HC4049NS can be powered from 5 V while accepting input signals from a 3.3 V CMOS source, because its input thresholds are compatible with CMOS levels across a wide voltage range. This enables direct level shifting between 3.3 V logic outputs and 5 V TTL inputs across all 6 channels simultaneously.
Which package option does the CD74HC4049NS use and how does it affect PCB layout?
The CD74HC4049NS comes in a 16-pin SOIC (SO-16) package with 1.27 mm pitch, which fits standard SMT footprints and occupies minimal board space. The SOIC package supports automated solder reflow and is compatible with lead-free RoHS processes, making it suitable for high-volume PCB assembly.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 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
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 285+ | $1.0500 | $299.25 |
| 1000+ | $0.6989 | $698.90 |
| 10000+ | $0.6232 | $6232.00 |
| 100000+ | $0.5221 | $52210.00 |
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.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit