CD4042BDWRE4

Series:	4000B
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Logic Type:	D-Type Transparent Latch
Circuit:	1:1
Output Type:	Differential
Voltage - Supply:	3 V ~ 18 V
Independent Circuits:	4
Delay Time - Propagation:	40ns
Current - Output High, Low:	6.8mA, 6.8mA
Operating Temperature:	-55°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	16-SOIC
Base Part Number:	4042

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Introduction

CD4042BDWRE4 is a logic-latch that is used to store state information in digital logic circuits. This device contains four independent D-type latches, each of which can hold one bit of state information. The device can function as either a negative-edge triggered (active LOW) or a positive-edge triggered (active HIGH) latch. It is designed specifically to provide superior performance in low voltage applications, making it suitable for a variety of user applications.

Application Field

CD4042BDWRE4 is mainly used in automotive systems. Its low voltage operation makes it suitable for use in onboard vehicle electronic systems, where the design engineer needs to maximize the power efficiency of the entire system. It is also ideal for use in portable electronics and battery-operated consumer products, where a cost-effective solution is essential. Additionally, the device can be used in consumer appliances, computers, communications systems, and other industrial applications.

Working Principle

CD4042BDWRE4 is based on two CMOS (Complementary Metal-Oxide Semiconductor) logic inputs, which provide an input signal. Furthermore, the device contains four independent D-type latches, each of which stores a single bit of state information. When the latch receives a signal on its Input terminal, it will store the current state of that signal, and then output that state when queried by the correct output. The device is designed to be triggered by either a negative-edge (active LOW) or positive-edge (active HIGH). This means, depending on the logic conditions set, it will be triggered on either a rising or falling voltage, meaning the data is latched/presented/swapped depending on the logic condition of the input applied. The CD4042BDWRE4 uses CMOS process technologies, meaning it requires minimal power and allows for low-voltage operations. Furthermore, its tri-state output allows for driving multiple loads with a single output. The device can also be used to provide combinational logic operations, facilitating system-level functions such as clock signaling and data synchronization.

Conclusion

CD4042BDWRE4 is a versatile logic-latch that can be used in a variety of applications ranging from automotive to consumer electronics. It is designed to provide superior performance in low voltage applications, allowing the design engineer to maximize the power efficiency of the entire system. Furthermore, the device can also provide combinational logic operations, making it very useful for implementing clock signalling and data synchronization.

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