Overview
The CD4043BDWR is a CMOS Quad NOR R/S Latch with 3-State Outputs produced by Texas Instruments. This integrated circuit is part of the CD4000 series and is designed for use in a variety of digital logic applications. The CD4043B type is specifically tailored for positive logic systems, while its counterpart, the CD4044B, is designed for negative logic systems. Each latch in the CD4043B has separate SET and RESET inputs and a common ENABLE input that controls the output states.
The device is available in several package types, including the 16-pin SOIC (DW) package, which is the focus of the CD4043BDWR model. This packaging offers a compact and reliable solution for integrating the latch functionality into various electronic systems.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | SOIC (DW) |
| Pins | 16 |
| Operating Temperature Range | -55°C to 125°C |
| Bits | 4 |
| 3-State Output | Yes |
| Maximum Frequency at Nominal Voltage | 8 MHz |
| Quiescent Current at Nominal Voltage | 0.06 mA |
| Output Drive (IOL/IOH) | 1.5/-1.5 mA |
| VCC Range | 3 V to 18 V |
| Propagation Delay at Nominal Voltage | 140 ns |
Key Features
- 3-state outputs with common output ENABLE
- Separate SET and RESET inputs for each latch
- NOR and NAND configurations available (CD4043B for NOR, CD4044B for NAND)
- 5-V, 10-V, and 15-V parametric ratings
- Standardized symmetrical output characteristics
- 100% tested for quiescent current at 20 V
- Maximum input current of 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
- Meets all requirements of JEDEC Tentative Standard No. 13B, 'Standard Specifications for Description of 'B' Series CMOS Devices'
Applications
- Holding register in multi-register systems
- Four bits of independent storage with output ENABLE
- Strobed register
- General digital logic applications
Q & A
- What is the CD4043BDWR?
The CD4043BDWR is a CMOS Quad NOR R/S Latch with 3-State Outputs from Texas Instruments, packaged in a 16-pin SOIC (DW) package.
- What are the key features of the CD4043BDWR?
Key features include 3-state outputs, separate SET and RESET inputs, NOR configuration, and a wide operating temperature range.
- What is the operating temperature range of the CD4043BDWR?
The operating temperature range is -55°C to 125°C.
- What is the maximum frequency at nominal voltage for the CD4043BDWR?
The maximum frequency at nominal voltage is 8 MHz.
- What are the typical applications of the CD4043BDWR?
Typical applications include holding registers, strobed registers, and general digital logic.
- What is the quiescent current at nominal voltage for the CD4043BDWR?
The quiescent current at nominal voltage is 0.06 mA.
- Does the CD4043BDWR meet any specific industry standards?
Yes, it meets all requirements of JEDEC Tentative Standard No. 13B.
- What is the output drive capability of the CD4043BDWR?
The output drive capability is 1.5/-1.5 mA.
- What are the VCC range and propagation delay for the CD4043BDWR?
The VCC range is 3 V to 18 V, and the propagation delay at nominal voltage is 140 ns.
- Is the CD4043BDWR RoHS compliant?
Yes, the CD4043BDWR is RoHS compliant and free from lead, bromine, and antimony.
- What package types are available for the CD4043B series?
The CD4043B series is available in various package types including SOIC, PDIP, and TSSOP.
