IDT74FST6800 Datasheet | Integrated Device

IDT74FST6800 10-BIT BUS SWITCH WITH PRECHARGED OUTPUTS INDUSTRIAL TEMPERATURE RANGE 10-BIT BUS SWITCH WITH PRECHARGED OUTPUTS Features : - - - - Bus switches provide zero delay paths Low switch on-resistance: 7Ω TTL-patible input and output levels ESD > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200p F, R = 0) - Available in QSOP and TSSOP packages The FST6800 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 forwardbiased the device conducts and the resistance between input and output ports is small. Without 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 FST6800 provides a 10-Bit TTL-patible interface. The ON pin serves as the enable pin. When ON is high, A and B ports are isolated and B outputs are precharged to the BIASV voltage, through the equivalent of a 10KΩ resistor. DESCRIPTION: FUNCTIONAL BLOCK DIAGRAM BIASV PIN CONFIGURATION ON A1 A2 A3 A4 A5 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 QSOP/ TSSOP TOP VIEW VCC B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 BIASV A1 B1 A6 A7 A8 A10 B10 A9 A10 GND The IDT logo is a registered trademark of Integrated Device Technology, Inc. INDUSTRIAL TEMPERATURE RANGE © 2004 Integrated Device Technology, Inc. JANUARY 2004 DSC-5519/2 IDT74FST6800 10-BIT BUS SWITCH WITH PRECHARGED OUTPUTS INDUSTRIAL TEMPERATURE...