Product Folder - CD4021BC - 8-Stage Static Shift Register

CD4021BC
8-Stage Static Shift Register

General Description

The CD4021BC is an 8-stage parallel input/serial output shift register. A parallel/serial control input enables individual JAM inputs to each of 8 stages. Q outputs are available from the sixth, seventh, and eighth stages. All outputs have equal source and sink current capabilities and conform to standard "B" series output drive.

When the parallel/serial control input is in the logical "0" state, data is serially shifted into the register synchronously with the positive transition of the clock. When the parallel/serial control is in the logical "1" state, data is jammed into each stage of the register asynchronously with the clock.

All inputs are protected against static discharge with diodes to V_DD and V_SS.

Features

Wide supply voltage range: 3.0V to 15V
High noise immunity: 0.45 V_DD (typ.)
Low power TTL compatibility:
Fan out of 2 driving 74L or 1 driving 74LS
5V-10V-15V parametric ratings
Symmetrical output characteristics
Maximum input leakage 1 µA at 15V over full temperature range

Product Status/Pricing/Packaging

Product	Product status	Eco Status	Pricing*	Package type	Leads	Packing method	Package Marking Convention**
CD4021BCM	Full Production	RoHS Compliant	$0.19	SOIC	16	RAIL	Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: CD4021BCM
CD4021BCMX	Full Production	RoHS Compliant	$0.19	SOIC	16	TAPE REEL	Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &2 (2-Digit Date Code) &K Line 2: CD4021BCM
CD4021BCN	Full Production	RoHS Compliant	$0.321	DIP	16	RAIL	Line 1: $Y (Fairchild logo) &Z (Asm. Plant Code) &4 (4-Digit Date Code) &K Line 2: CD4021BCN

* Fairchild 1,000 piece Budgetary Pricing

** A sample button will appear if the part is available through Fairchild's on-line samples program. If there is no sample button, please contact a Fairchild distributor to obtain samples

Package marking information for product CD4021BC is available. Click here for more information .

Qualification Support

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Product
CD4021BCM
CD4021BCMX
CD4021BCN