CMOS 8-Bit Static Shift Register – NTE4021B

Reliable 8-Bit Static Shift Register for Serial and Parallel Data Processing

The NTE4021B is a CMOS 8-bit static shift register designed for efficient parallel-to-serial conversion and serial-in/parallel-out operations. Engineered for high-reliability applications, this IC provides low power dissipation, high noise immunity, and robust static operation. Suitable for a wide range of digital processing, buffering, and data queuing tasks, its versatility stems from a combination of master-slave flip-flops and buffered outputs.

Key Features

• 8-bit static shift register
• CMOS technology for low power operation
• Supports both serial-in/parallel-out and parallel-in/serial-out modes
• Parallel data inputs and buffered parallel outputs
• Wide supply voltage range
• High noise immunity and fully static operation
• D-type master-slave flip-flop architecture
• Standardized symmetrical output characteristics
• Meets JEDEC standard JESD 13-B

Technical Specifications

• Technology: CMOS
• Register Length: 8 bits
• Configuration: Serial-in/parallel-out (SIPO), parallel-in/serial-out (PISO)
• Functionality: Static operation with asynchronous parallel load
• Outputs: Buffered parallel outputs

Typical Applications

• Parallel-to-serial data conversion
• Serial-to-parallel data conversion
• Data queuing and digital buffering
• Logic level translation and digital interface circuitry

Usage Instructions

The NTE4021B shift register operates via synchronous serial data input with the capability for asynchronous parallel loading. Its D-type master-slave flip-flop structure ensures data integrity during clock transitions, while the Schmitt trigger inputs provide precise logic threshold control. For maximum reliability, connect power and ground to recommended supply levels and consult the relevant timing diagrams for optimal clock input usage.

Note: NTE Part Number: NTE4021B. Supplied as one IC per package.

This part is the equivalent replacement for the following:

029866-000, 1079-BN, 179-56227-04, 179866, 1820-0961, 1820-1898, 1820-2031, 201087, 227-04, 34021DC, 34021PC, 4021BDC, 4021BE, 4021PDC, 804058, 991-029866, 991-029866-000, BCL4021B, CD4021, CD4021A, CD4021AC, CD4021AE, CD4021AM, CD4021B, CD4021BE, CD4021C, CM4021A, CM4021AE, D4021(IC), ECD4021B, F4021, F4021B, F4021BC, F4021BDC, F4021BM, F4021BPC, F4021DC, F4021PC, FD-1079-BN, GE-4021, HBF4021A, HBF4021BD, HBF4021BP, HCC4021B, HCF4021B, HCF4021BE, HCF4021BF, HD1-4021-9, HD14021B, HD14021BP, HEF4021BD, HEF4021BP, HEF4021P, M4021B, M4021BP, MB84021, MB84021B, MC14021, MC14021B, MC14021BCL, MC14021BCP, MC14021CP, MM4021, MM5621A, MM5621AJ, MM5621AN, MN4021B, MSM4021, N4021, NTE4021B, RS2421, SCL4021, SCL4021AE, SCL4021B, SCL4021BE, SK4021, SK4021B, SK4021B/4021B, SL58912, SW4021, TC4021B, TC4021BP, TC4021P, TM4021B, TP4021, TP4021AN, UPD4021, UPD4021C