SN74LS75 Quad Bistable Latch IC (TTL)
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Prices updated: 13 Oct 2026
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About this product
The SN74LS75 is a TTL logic IC containing four D-type bistable latches in a single package, used to store and hold digital data bits in logic designs and educational circuits. The latches are grouped in pairs with shared enable inputs, and each latch provides complementary outputs.
Specifications
- Logic family
- TTL (LS)
- Number of latches
- 4
- Latch type
- D-type bistable
- Supply voltage
- 5V (4.75V to 5.25V)
- Outputs
- Q and Q̄ (complementary)
- Package
- 16-pin DIP
Frequently asked questions
How do I wire the SN74LS75?
Connect the 5V supply to the VCC pin and ground to the GND pin as shown in the Texas Instruments datasheet. Use the enable inputs to pass data through or hold the stored value, and wire the data inputs as needed.
Can I use it directly with a 3.3V microcontroller?
This is a 5V TTL device, so check its input and output levels against your 3.3V board before connecting. Use a level shifter or check the datasheet thresholds where the logic levels do not match.
