Overview
The CD4049UBDWRE4, produced by Texas Instruments, is a CMOS hex inverting buffer and logic-level converter. This device is part of the CD4049UB series and is specifically packaged in a 16-pin SOIC (Small Outline Integrated Circuit) package. It is designed to operate as an inverting buffer, converting CMOS logic levels to DTL (Diode-Transistor Logic) or TTL (Transistor-Transistor Logic) levels using a single supply voltage (VCC). This component is suitable for a variety of applications requiring high sink current and logic-level conversion.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Supply Voltage (VCC) | 3 | 5 | 15 | V |
| Output Low Voltage (VOL) | 0 | 0.4 | V | |
| Output High Voltage (VOH) | 4.95 | 5 | V (at VCC = 5V) | |
| Input Low Voltage (VIL) | 1 | 2.5 | V (full temperature range) | |
| Input High Voltage (VIH) | 4 | 7 | V (full temperature range) | |
| Output Low Current (IOL) | 2.6 | 5.2 | mA (at VCC = 5V, TA = 25°C) | |
| Propagation Delay Time (tPLH) | 60 | 120 | ns (at VCC = 5V, TA = 25°C) | |
| Propagation Delay Time (tPHL) | 32 | 65 | ns (at VCC = 5V, TA = 25°C) | |
| Input Capacitance (CIN) | 15 | 22.5 | pF | |
| Operating Temperature Range | -55 | 125 | °C | |
| Package Type | 16-pin SOIC |
Key Features
- Inverting hex buffer with six independent buffers.
- High sink current capability to drive two TTL loads directly.
- Logic-level conversion from CMOS to DTL or TTL using a single supply voltage.
- Low input current of ±0.1 µA at 18 V over the full package temperature range.
- High-to-low level logic conversion.
- 100% tested for quiescent current at 20 V.
- Available in various packages including SOIC, PDIP, SO, and TSSOP.
Applications
- CMOS to DTL or TTL hex converters.
- CMOS current sink or source drivers.
- CMOS high-to-low logic level converters.
- General-purpose logic buffering and level shifting in digital circuits.
Q & A
- What is the primary function of the CD4049UBDWRE4?
The CD4049UBDWRE4 is an inverting hex buffer and logic-level converter, designed to convert CMOS logic levels to DTL or TTL levels. - What are the typical output low and high voltages for the CD4049UBDWRE4?
The output low voltage (VOL) is typically 0.4 V, and the output high voltage (VOH) is typically 4.95 V at VCC = 5 V. - How much current can the CD4049UBDWRE4 sink?
The device can sink up to 5.2 mA of current at VCC = 5 V and TA = 25°C. - What is the propagation delay time for the CD4049UBDWRE4?
The propagation delay time (tPLH and tPHL) ranges from 60 to 120 ns and 32 to 65 ns, respectively, at VCC = 5 V and TA = 25°C. - What are the input and output capacitances of the CD4049UBDWRE4?
The input capacitance (CIN) is typically 15 to 22.5 pF. - What is the operating temperature range of the CD4049UBDWRE4?
The operating temperature range is from -55°C to 125°C. - In what packages is the CD4049UBDWRE4 available?
The device is available in 16-pin SOIC, PDIP, SO, and TSSOP packages. - What are some common applications of the CD4049UBDWRE4?
Common applications include CMOS to DTL or TTL hex converters, CMOS current sink or source drivers, and CMOS high-to-low logic level converters. - How many independent buffers does the CD4049UBDWRE4 have?
The device has six independent inverting buffers. - What is the maximum input current of the CD4049UBDWRE4?
The maximum input current is ±0.1 µA at 18 V over the full package temperature range.
