TI CD74ACT139M96

CD54ACT139 is available in the F package, and CD74ACT139 is available in the E or M package. The ACT139 devices are dual 2-line to 4-line decoders/demultiplexers designed for 4.5V to 5.5V VCC operation. These devices are designed for high-performance memory decoding or data routing applications requiring very short propagation delay times. In high-performance memory systems, these decoders can be used to minimize the impact of system decoding. When used with high-speed memories that employ fast enable circuits, the combined delay time of these decoders and the enable time of the memory is typically less than the memory's typical access time. This means the effective system delay introduced by the decoder is negligible. The active-low enable (G) input can be used as a data line in demultiplexer applications. These decoders/demultiplexers feature fully buffered inputs, with each input representing only one normalized load to its driving circuit.

• 1.5V to 5.5V operation with balanced noise immunity at 30% of supply voltage
• Buffered inputs
• Two integrated enable inputs for simplified cascading and/or data reception
• Speed comparable to bipolar F, AS, and S with significantly reduced power dissipation
• Balanced propagation delay
• ±24-mA output drive current
• Fan-out to 15 F devices
• SCR latch-up protected CMOS process and circuit design
• Over 2-kV ESD protection per MIL-STD-883 Method 3015

• High-performance memory decoding
• Data routing
• High-performance memory systems
• Demultiplexing applications