CD4049UBPW Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The CD4049UBPW is a CMOS hex inverting buffer and converter from Texas Instruments 4000 family, featuring six independent single-input inverters with 18mA output drive in a 16-pin TSSOP package. Operates from 3V to 15V supply for level conversion between different logic families. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- CD4049UBPW 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 buffers in a single 16-pin TSSOP package for high-density multi-channel signal inversion
- Unbuffered (UB) CMOS design with 18mA output drive current enabling direct drive of LEDs and other loads
- Wide 3V to 15V supply range and logic level conversion capability for interfacing CMOS, TTL, and NMOS logic families
- Input voltage can exceed VCC allowing use as a level converter from 5V or higher logic down to 3V or lower CMOS outputs
Applications
The CD4049UBPW is widely used as a logic level translator between different voltage domains, such as converting 5V TTL signals to 3V CMOS levels, because its inputs can tolerate voltages higher than its supply voltage. Its six inverting channels make it useful for signal conditioning, clock distribution buffering, and driving multiple loads simultaneously in industrial control, consumer electronics, and automotive applications. The unbuffered CMOS topology also allows use in linear mode as an oscillator or amplifier for low-frequency analog signal processing.
Specifications
| YTEOL | 0 |
| Family | 4000/14000/40000 |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Load Capacitance (CL) | 50pF |
| Logic IC Type | INVERTER |
| Max I(ol) | 0.018A |
| Number of Functions | 6 |
| Number of Inputs | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Power Supply Current-Max (ICC) | 0.6mA |
| Prop. Delay@Nom-Sup | 120ns |
| Propagation Delay (tpd) | 120ns |
| Qualification Status | Not Qualified |
| Schmitt Trigger | NO |
| Supply Voltage-Max (Vsup) | 18V |
| Supply Voltage-Min (Vsup) | 3V |
| Supply Voltage-Nom (Vsup) | 10V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | MILITARY |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| 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 | 8542.39.00.01 |
| Country of Origin | Malaysia |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for CD4049UBPW:
Frequently Asked Questions
What makes the CD4049UBPW useful as a logic level converter?
The CD4049UBPW is particularly valuable as a level converter because its input pins can accept voltages higher than the VCC supply voltage. For example, with VCC at 3V, the inputs can still accept 5V TTL or CMOS signals. The outputs will swing between 0V and VCC (approximately 3V), effectively down-converting 5V signals to 3V CMOS levels. This makes it a simple and cost-effective solution for voltage translation without requiring specialized level-shifter ICs.
What is the difference between CD4049UB and CD4049B?
The CD4049UB (unbuffered) and CD4049B (buffered) versions differ in their internal structure. The buffered 4049B has three inverting stages for a sharper switching threshold and better noise margin but higher propagation delay. The unbuffered UB version has only one inverter stage, resulting in faster but slightly less defined switching. The UB version can also operate in the linear region, making it suitable for oscillator and amplifier circuits, while the buffered version is strictly digital.
What package does the CD4049UBPW use?
The CD4049UBPW is packaged in a 16-pin TSSOP (Thin Shrink Small Outline Package), as indicated by the PW suffix and JESD-30 code R-PDSO-G16. The TSSOP has a 0.65mm lead pitch and a very thin profile, making it suitable for compact surface-mount designs. It is significantly smaller than the equivalent DIP package, enabling higher density PCB layouts while still being hand-solderable with standard SMD equipment.
What is the output drive current of the CD4049UBPW?
The CD4049UBPW provides a maximum output low current (IOL) of 18mA, which is higher than most standard CMOS logic gates. This enhanced drive capability allows the device to directly drive LEDs (with appropriate series resistors), small relay coils, and other moderate-current loads in addition to standard logic inputs. The high drive current also enables faster switching of capacitive loads compared to lower-drive logic families.
What are typical applications for the CD4049UBPW?
The CD4049UBPW is commonly used in logic level translation between 5V TTL and lower-voltage CMOS systems, signal inversion in control logic, LED drivers with current-limiting resistors, clock signal buffering and distribution, and oscillator circuits using external RC networks. In industrial applications it serves as a line driver for long PCB traces, and in consumer electronics as a simple interface buffer between microcontrollers and display or sensor modules operating at different voltages.
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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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