Overview
The CD4044BDW is a quad cross-coupled 3-state CMOS NAND latch produced by Texas Instruments. Each latch in this device has a separate Q output and individual SET and RESET inputs. The Q outputs are controlled by a common ENABLE input, allowing for the outputs to be connected or disconnected from the latch states. This feature enables common busing of the outputs, making it versatile for various digital logic applications.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | SOIC (DW) |
| Pins | 16 |
| Operating Temperature Range (°C) | -55 to 125 |
| Package Quantity | Carrier 40, Tube |
| Input Current | 1 µA at 18 V over full package temperature range; 100 nA at 18 V and 25°C |
| Noise Margin | 1 V at VDD= 5 V, 2 V at VDD= 10 V, 2.5 V at VDD= 15 V |
| Eco Plan | Green (RoHS & no Sb/Br) |
| Lead/Ball Finish | Cu NIPDAU |
| MSL Peak Temp | Level-1-260C-UNLIM |
Key Features
- 3-state outputs with common output ENABLE
- Separate SET and RESET inputs for each latch
- NOR and NAND configurations (CD4044B for negative logic systems)
- 5-V, 10-V, and 15-V parametric ratings
- Standardized symmetrical output characteristics
- 100% tested for quiescent current at 20 V
- Meets all requirements of JEDEC Tentative Standard No. 13B, 'Standard Specifications for Description of 'B' Series CMOS Devices'
Applications
- Holding register in multi-register system
- Four bits of independent storage with output ENABLE
- Strobed register
- General digital logic
- Specifically suited for negative logic systems (CD4044B), while CD4043B is for positive logic systems
Q & A
- What is the CD4044BDW?
The CD4044BDW is a quad cross-coupled 3-state CMOS NAND latch. - How many pins does the CD4044BDW have?
The CD4044BDW has 16 pins. - What is the operating temperature range of the CD4044BDW?
The operating temperature range is -55°C to 125°C. - What is the package type of the CD4044BDW?
The package type is SOIC (DW). - What are the key features of the CD4044BDW?
Key features include 3-state outputs, separate SET and RESET inputs, and standardized symmetrical output characteristics. - What are the typical applications of the CD4044BDW?
Typical applications include holding registers, strobed registers, and general digital logic. - Is the CD4044BDW suitable for new designs?
As of the latest information, the CD4044BDW is not recommended for new designs due to its NRND status. - What is the noise margin of the CD4044BDW?
The noise margin is 1 V at VDD= 5 V, 2 V at VDD= 10 V, and 2.5 V at VDD= 15 V. - What is the input current of the CD4044BDW?
The input current is 1 µA at 18 V over the full package temperature range and 100 nA at 18 V and 25°C. - Is the CD4044BDW RoHS compliant?
Yes, the CD4044BDW is RoHS compliant and free of Sb/Br.
