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Quadruple Bus Buffers With 3-State Outputs


Package | PIN: D | 14
Temp: C (0 to 70)
Carrier: Cut Tape
Qty Price
1-9 $0.73
10-24 $0.64
25-99 $0.58
100-249 $0.50
250-499 $0.45
500-749 $0.35
750-999 $0.27
1000+ $0.23


  • Quad Bus Buffers
  • 3-State Outputs
  • Separate Control for Each Channel

The SN54125, SN54126, SN74125, SN74126, and SN54LS126A are obsolete and are no longer supplied.

Texas Instruments  SN74LS125ADR

These bus buffers feature three-state outputs that, when enabled, have the low impedance characteristics of a TTL output with additional drive capability at high logic levels to permit driving heavily loaded bus lines without external pullup resistors. When disabled, both output transistors are turned off, presenting a high-impedance state to the bus so the output will act neither as a significant load nor as a driver. The ’125 and ’LS125A devices’ outputs are disabled when G\ is high. The ’126 and ’LS126A devices’ outputs are disabled when G is low.