ICs & ChipsCode fca0d723be
74125 SN74LS125N Quad 3-State Bus Buffer (DIP-14)
The SN74LS125N is a Quadruple Bus Buffer with 3-State Outputs, manufactured by Texas Instruments and housed in a standard 14-pin DIP through-hole package.
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Highlights
- Tri-state bus buffering and isolation in microprocessor systems
- Memory and I/O bus interfacing
- Signal line enabling/disabling in shared bus architectures
- General digital logic buffering in TTL-based designs
- 1 x SN74LS125N IC (14-pin DIP)
Specifications
- Function
- Quad non-inverting buffer with 3-state outputs (negative/active-LOW enable)
- Logic Family
- TTL, Low Power Schottky (LS)
- Output Type
- 3-state, high drive capability for bus lines
- Manufacturer
- Texas Instruments
About this product
Description
The SN74LS125N is a Quadruple Bus Buffer with 3-State Outputs, manufactured by Texas Instruments and housed in a standard 14-pin DIP through-hole package. This device contains four independent non-inverting buffer gates, each with an individual active-LOW enable input controlling its 3-state output.
When enabled, the outputs exhibit the low-impedance characteristics of a standard TTL/LS output, with additional drive capability that allows the buffers to drive bus lines directly, without needing external pull-up resistors. When disabled, each output goes into a high-impedance ("3-state") condition, effectively disconnecting it from the bus - a key feature for designs where multiple devices need to share a common data or address bus without conflict.
This makes the SN74LS125N a common choice for bus interfacing, tri-state data bus control, memory and I/O bus isolation, and any digital system where signal lines must be selectively enabled or floated.
Key Specifications
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Common Applications
Package Includes
