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74HCT240D,653 Breakout
IC BUFF/LINE DRIVER 8BIT 3-STATE INV SO20
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Octal inverting buffer and line driver with 3-state outputs in 20-pin SO package. Features two independent 4-bit sections with separate output enables, wide supply range (2.0V-6.0V), and TTL-compatible inputs. Suitable for bus buffering, signal inversion, and high-impedance output control in digital systems.
Package: SOIC-20W (7.5mm wide) · 20 pins
Why does this need a breakout?
The 1.27mm pin pitch makes hand-soldering this 20-pin SOIC challenging and error-prone. A breakout board brings all pins to standard 0.1" spacing, enabling reliable breadboard prototyping and simplifying development of USB-to-UART interfaces without requiring reflow soldering or specialized equipment.
Component specifications
ELECTRICAL CHARACTERISTICS
| Manufacturer | Nexperia USA Inc. |
| Part Number | 74HCT240D,653 |
| Package | SOIC-20W (7.5mm wide) |
| Pin Count | 20 |
| Logic Type | Buffer, Inverting |
| Number of Bits per Element | 4 |
| Number of Elements | 2 |
| Output Type | 3-State |
| Voltage - Supply | 4.5V ~ 5.5V |
What's Included
BILL OF MATERIALS
- 1x 74HCT240D,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