SN74HC244 Octal Buffer/Line Driver, Non-Inverting, 3-State
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Prices updated: 12 Oct 2026
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About this product
The SN74HC244 is a CMOS octal buffer and line driver with non-inverting 3-state outputs. It is organized as two groups of four buffers, each with its own active-low output enable. It is used to buffer signals and drive bus lines in digital circuits.
Specifications
- Logic family
- CMOS (74HC series)
- Function
- Octal non-inverting buffer/line driver
- Channels
- 8 (two groups of 4)
- Output enables
- 1OE and 2OE, active low
- Supply voltage
- 2 V to 6 V
- Package
- 20-pin DIP
Frequently asked questions
How does the SN74HC244 differ from the SN74HC240?
The SN74HC244 has non-inverting outputs, while the SN74HC240 inverts its outputs. Check the required signal polarity before choosing between them.
How are the output enables used?
Pull 1OE low to enable the first group of four outputs and 2OE low to enable the second group. When an enable is high, the corresponding outputs go into a high-impedance state.
