CD4043BMS
CMOS Quad 3 State R/S Latch

Key Features

• High Voltage Types (20V Rating)
• Quad NOR R/S Latch- CD4043BMS
• Quad NAND R/S Latch - CD4044BMS
• 3 State Outputs with Common Output ENABLE
• Separate SET and RESET Inputs for Each Latch
• NOR and NAND Configuration
• 5V, 10V and 15V Parametric Ratings
• Standardized Symmetrical Output Characteristics
• 100% Tested for Quiescent Current at 20V
• Maximum Input Current of 1µa at 18V Over Full Package- Temperature Range;
• 100nA at 18V and 25^oC
• Noise Margin (Over Full Package Temperature Range):
• 1V at VDD = 5V
• 2V at VDD = 10V
• 2.5V at VDD = 15V
• Meets All Requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of 'B' Series CMOS Devices"

Description

CD4043BMS types are quad cross-coupled 3-state CMOS NOR latches and the CD4044BMS types are quad cross-coupled 3- state CMOS NAND latches. Each latch has a separate Q output and individual SET and RESET inputs. The Q outputs are controlled by a common ENABLE input. A logic "1" or high on the ENABLE input connects the latch states to the Q outputs. A logic "0" or low on the ENABLE input disconnects the latch states from the Q outputs, results in an open circuit feature allows common busing of the outputs.

The CD4043BMS and CD4044BMS are supplied in these 16- lead outline packages:

Braze Seal DIP *H4T †H4T
Frit Seal DIP *H1C †HIE
Ceramic Flatpack *H3X †H6W
*CD4043B Only †CD4044B Only

Applications

• Holding Register in Multi-Register System
• Four Bits of Independent Storage with Output ENABLE
• Strobed Register
• General Digital Logic
• CD4043BMS for Positive Logic Systems
• CD4044BMS for Negative Logic Systems