- Motorized
- Tools
-
Dev. Tools
-
Electronics
- Power and Energy
- Wires and Connectors
- Grove
- USB Peripherals
- Motors and Servos
- LEDs & Lights
- Assembly kits
- Domotic
- Break-out Boards
- Network
- Electronic basics
- PCBs
- Sound
- Integrated Circuits (ICs, Chips)
- Wireless Connectivity
- Sensors
- Human Interface
- CMS / SMD
- Others
- Prototyping
CD4021BE 8bit Shift Register (parallel to serial)
€1.45
Tax included
CD4021 is a cascadable 8bit parallel to serial shift register (basically the inverse of the 74hc595).
Sometimes you'll end up needing more digital input than the pins on your microcontroller board can readily handle. Using a parallel to serial shift register allows you collect information from 8 or more switches while only using 3 of the pins on your microcontroller.
By the way, this is the IC you need for Arduino ShiftIn function.
The CD4021BE is an 8-bit parallel-in, serial-out shift register designed to expand digital input capabilities.
This component allows you to read the state of eight switches or sensors while using only three microcontroller pins (Data Out, Clock, Latch). It works seamlessly with the Arduino ShiftIn() function.
Specifications
- Type: Parallel-to-Serial Shift Register
- Data Bits: 8
- Cascadable: Yes (up to 64 bits with multiple chips)
- Operating Voltage: 3V to 15V
- Packaging: DIP-16
Useful Links
- Texas Instruments Datasheet: CD4021B Datasheet
- Arduino ShiftIn Tutorial: ShiftIn Guide
You might also like
CD4021 is a cascadable 8bit parallel to serial shift register (basically the inverse of the 74hc595).
Sometimes you'll end up needing more digital input than the pins on your microcontroller board can readily handle. Using a parallel to serial shift register allows you collect information from 8 or more switches while only using 3 of the pins on your microcontroller.
By the way, this is the IC you need for Arduino ShiftIn function.