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(overline) is high. The '126 and 'LS126A devices' outputs are disabled when G is low.

Key features

• Output disable logic varies by model: 125 and LS125A devices disable output when G is HIGH; 126 and LS126A devices disable output when G is LOW
• Logic function: Y = A
• Available in multiple package types: J, W, N, D, NS, and FK packages
• 125 and 126 absolute maximum ratings: supply voltage VCC max 7V, input voltage V₁ max 5.5V, N package thermal resistance θJA 80°C/W, storage temperature range -65°C~150°C
• LS125A and LS126A absolute maximum ratings: supply voltage VCC max 7V, input voltage V₁ max 7V, D package thermal resistance θJA 86°C/W, N package thermal resistance θJA 80°C/W, NS package thermal resistance θJA 76°C/W, storage temperature range -65°C~150°C