CD74HC4049NSR Texas Instruments Logic ICs (SOIC-16) In Stock
CD74HC4049NSR is a hex inverting buffer and CMOS-to-TTL level translator IC by Texas Instruments in the HC/UH family. Key specs: 6 inverter functions, 50 pF load capacitance, 4 mA output sink current, 16-pin SOIC package. From $0.30, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOIC-16
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- CD74HC4049NSR Datasheet PDF
- Category
- Logic ICs
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 6 independent inverting buffer channels enabling CMOS-to-TTL level translation in a single 16-pin package
- Supports 50 pF load capacitance with 4 mA output sink current for reliable drive of TTL-level loads
- RoHS-compliant e4 JESD-609 lead-free construction and HC/UH family compatibility with wide supply voltage range
Applications
CD74HC4049NSR is ideal for interfacing CMOS logic stages to TTL-compatible inputs in mixed-voltage digital systems. Its 6 inverting buffer channels are widely used in microcontroller I/O expansion, signal conditioning, and bus driving applications in consumer electronics and industrial control boards. The small 16-pin SOIC package simplifies PCB layout in space-constrained designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| 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 (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOIC-16 |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many inverting buffer channels does CD74HC4049NSR have and what output sink current can it deliver?
CD74HC4049NSR integrates 6 independent inverting buffer channels, each capable of sinking up to 4 mA of output current. This combination allows the device to drive 6 separate TTL-level loads simultaneously from a single 16-pin SOIC package, reducing component count.
Can CD74HC4049NSR be used to translate logic levels between 5 V CMOS outputs and 3.3 V TTL inputs?
Yes, CD74HC4049NSR is specifically characterized as a CMOS-to-TTL level translator. Its input thresholds and output drive levels are designed to accept 5 V CMOS signals and produce TTL-compatible output voltages, making it effective for 5 V to lower-voltage bus translation in mixed-supply digital systems.
What load capacitance can CD74HC4049NSR drive and why does that matter for high-speed signal integrity?
CD74HC4049NSR is rated for a load capacitance (CL) of 50 pF per channel. Driving loads at or below 50 pF ensures the output rise and fall times stay within the HC-family propagation delay specifications, maintaining signal integrity at clock rates typically up to 25 MHz in standard 5 V HC logic designs.
Related Guides
ADSP-BF548BBCZ-5A Blackfin DSP Design Guide: Clocking, DDR, and Peripheral Configuration
Complete design guide for the ADSP-BF548BBCZ-5A 533 MHz Blackfin DSP: PLL sequencing, DDR memory timing, power rail order, and peripheral configuration for HMI, audio, and communications applications.
Jun 11, 2026
CL05B104KO5NNNC & 0402 X7R MLCC Selection Guide: How to Choose a 100 nF Decoupling Capacitor
A practical guide to selecting 100 nF 0402 X7R MLCCs for bypass and decoupling. Compare CL05B104KO5NNNC, CL21B104KBCNNNC, CL05B103KB5NNNC and choose the right voltage rating, dielectric, and package.
Jun 11, 2026
ADSP-BF706BCPZ-4 Selection Guide: How to Choose a Blackfin+ DSP for Your Embedded Design
Compare ADSP-BF706BCPZ-4, BF548BBCZ-5A, and BF512BSWZ-4 on clock speed, memory, peripherals, and power to select the right Blackfin+ DSP.
Jun 10, 2026
ADC128S102 Selection Guide: How to Choose the Right 8-Channel 12-Bit SAR ADC
Compare ADC128S102 variants by supply voltage, temperature range, package, and qualification to pick the right 8-channel 12-bit SAR ADC for your design.
Jun 10, 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
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.”