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HEF4021BT,653 Breakout
IC SHIFT REG 8-BIT PARALLEL-SERIAL SO16
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£3.19
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Design a Custom BoardAbout This Component
The HEF4021B is an 8-bit static shift register functioning as a parallel-to-serial converter. It features synchronous serial data input, asynchronous parallel load capability, and buffered outputs from the last three stages. Operating across 3V to 15V supply range with CMOS low power consumption, high noise immunity, and Schmitt trigger clock input tolerant of slow signal transitions.
Package: SOIC-16 (3.9×9.9mm) · 16 pins
Why does this need a breakout?
The 1.27mm pin pitch on this 16-pin package makes hand-soldering impractical and breadboard mounting impossible. A breakout board brings the pins to standard 2.54mm spacing, enabling quick prototyping of RS-232/RS-485 transceivers, ADCs, and line drivers without requiring surface-mount soldering skills or PCB fabrication.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Nexperia USA Inc. |
| Part Number | HEF4021BT,653 |
| Package | SOIC-16 (3.9×9.9mm) |
| Pin Count | 16 |
| Logic Type | Shift Register |
| Number of Bits per Element | 8 |
| Number of Elements | 1 |
| Output Type | Push-Pull |
| Voltage - Supply | 3V ~ 15V |
What's Included
BILL OF MATERIALS
- 1x HEF4021BT,653 soldered onto breakout PCB
- Pin headers pre-soldered (2.54mm / 0.1" pitch)
- All IC pins broken out to 2.54mm headers
Breakout Board Design
PCB SPECIFICATIONS