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.
The SN54125, SN54126, SN74125, SN74126, and SN54LS126A are obsolete and are no longer supplied.
|Part number||Order||Technology Family||VCC (Min) (V)||VCC (Max) (V)||Bits (#)||Voltage (Nom) (V)||F @ nom voltage (Max) (MHz)||ICC @ nom voltage (Max) (mA)||tpd @ nom Voltage (Max) (ns)||IOL (Max) (mA)||IOH (Max) (mA)||Schmitt trigger||Rating||Operating temperature range (C)|
||LS||4.75||5.25||4||5||35||0.062||18||24||-2.6||No||Catalog||0 to 70|