IDT74FST163244 Datasheet, PDF (1/6 Pages) Integrated Device Technology – 16-BIT BUS SWITCH

16-BIT BUS SWITCH
IDT74FST163244
ADVANCE INFORMATION
Integrated Device Technology, Inc.
FEATURES:
• Bus switches provide zero delay paths
• Extended commercial range of –40°C to +85°C
• Low switch on-resistance:
FST163xxx – 7Ω
• 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
• Pin-compatible with FCT16244/FCT162244T
FUNCTIONAL BLOCK DIAGRAM
1OE
1A1
1B1
1A2
1B2
1A3
1B3
1A4
1B4
DESCRIPTION:
The FST163244 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.
3OE
3A1
3B1
3A2
3B2
3A3
3B3
3A4
3B4
2OE
2A1
2B1
2A2
2B2
2A3
2B3
2A4
2B4
4OE
4A1
4A2
4A3
4A4
PIN DESCRIPTION
Pin Names
XOE
XAx
XBx
Description
Output Enable Inputs (Active LOW)
A Port Bits
B Port Bits
3615 tbl 01
4B1
4B2
4B3
4B4
3615 drw 01
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
COMMERCIAL TEMPERATURE RANGE
©1997 Integrated Device Technology, Inc.
1
FEBRUARY 1997
DSC-3615/-