37914

The Fairchild Switch 37914 provides up to 48-bits of high-speed CMOS TTL-compatible bus switching. The low on resistance of the switch allows inputs to be connected to outputs without adding propagation delay or generating additional ground bounce noise. A diode to V_CC has been integrated into the circuit to allow for level shifting between 5V inputs and 3.3V outputs.

The 37914 can be organized as four 12-bit, two 24-bit, or one 48-bit bus switch. When routed as a 40-bit bus switch,the device can be organized as four 10-bit, two 20-bit or one 40-bit bus switch. When OE₁ is LOW, the switch is ON and Port 1A is connected to Port 1B. When OE₂ is LOW,the switch is ON and Port 2A is connected to Port 2B. When OE3 is LOW, the switch is ON and Port 3A is connected to Port 3B. When OE₄ is LOW, the switch is ON and Port 4A is connected to Port 4B. When OE₁, OE₂, OE₃, or OE₄ are HIGH, a high impedance state exists between the A and B Ports.