Integrated Device Technology, Inc.

The IDT logo is a registered trademark of 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 – 7

Ω

• 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

COMMERCIAL TEMPERATURE RANGE

FEBRUARY 1997

©1997 Integrated Device Technology, Inc.

DSC-3615/-

1

IDT74FST163244

ADVANCE INFORMATION

16-BIT BUS SWITCH

1

OE

1

1

1

1

1

1

1

1

2

OE

2

2

2

2

2

2

2

2

3

OE

3

3

3

3

3

3

3

3

4

OE

4

4

4

4

4

4

4

4

PIN DESCRIPTION

3615 drw 01

3615 tbl 01

Pin Names

Description

X

OE

Output Enable Inputs (Active LOW)

X

Ax

A Port Bits

X

Bx

B Port Bits

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,

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.

FUNCTIONAL BLOCK DIAGRAM