IDT74FST163212PF

24位总线交换开关 24-BIT BUS EXCHANGE SWITCH

DESCRIPTION:

The FST163212 belongs to IDT"s family of Bus switches. Bus switch devices perform the function of connecting or isolating two ports without providing any inherent current sink or source capability. Thus they generate little or no noise of their own while providing a low resistance path for an external driver. These devices connect input and output ports through an n-channel FET. When the gate-to-source junction of this FET is adequately forward-biased the device conducts and the resistance between input and output ports is small. With out adequate bias on the gate-to-source junction of the FET, the FET is turned off, therefore with no VCC applied, the device has hot insertion capability.

The low on-resistance and simplicity of the connection between input and output ports reduces the delay in this path to close to zero.

The FST163212 provides four 12-bit TTL- compatible ports that support 2 way bus exchange. The S0-2 pins control the bus exchange and switch enable functions.

FEATURES:

• Bus switches provide zero delay paths

• Extended commercial range of –40°C to +85°C

• Low switch on-resistance: FST163xxx – 4Ω

• TTL-compatible input and output levels

• ESD > 2000V per MIL-STD-883, Method 3015;

   > 200V using machine model C = 200pF, R = 0

• Available in SSOP, TSSOP and TVSOP