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74HCT109D,653 Breakout
DUAL JK FLIP-FLOP POSITIVE-EDGE 16-SO
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Design a Custom BoardAbout This Component
Dual JK flip-flop with positive-edge triggering, asynchronous set and reset inputs, and complementary Q outputs. Features TTL-compatible input thresholds, Schmitt-trigger clock inputs, and operates from 4.5V to 5.5V (HCT variant). Configurable as D-type flip-flops or toggle circuits for sequential logic and frequency division applications.
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 | 74HCT109D,653 |
| Package | SOIC-16 (3.9×9.9mm) |
| Pin Count | 16 |
| Clock Frequency | 55 MHz |
| Current - Quiescent (Iq) | 4 µA |
| Number of Bits per Element | 1 |
| Number of Elements | 2 |
| Output Type | Complementary |
| Type | JK Type |
| Voltage - Supply | 4.5V ~ 5.5V |
What's Included
BILL OF MATERIALS
- 1x 74HCT109D,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