IDT74FST3384
10-BIT OCTAL BUS SWITCH
COMMERCIAL TEMPERATURE RANGE
10-BIT BUS SWITCH
IDT74FST3384
FEATURES:
DESCRIPTION:
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The FST3384 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 or 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 V CC applied, the
device has hot insertion capability.
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Bus switches provide zero delay paths
Extended commercial range of –40°C to +85°C
Low switch on-resistance: 5Ω
TTL-compatible input and output levels
ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
Available in QSOP, TSSOP, SOIC, and PDIP Packages
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 FST3384 is a 10-bit TTL-compatible bus switch. The BEx pins
provide enable control - BEA controls the lower 5-bits and BEB controls the
upper 5-bits.
PIN CONFIGURATION
FUNCTIONAL BLOCK DIAGRAM
A0
B0
BEA
A9
4
21
A8
5
20
B8
6
19
B7
7
18
A7
8
17
A6
B3
9
16
B6
B4
10
15
B5
A4
11
14
A5
GND
BEB
22
A3
BEA
3
B2
B9
B9
A2
A9
23
A1
B5
2
B1
A5
Vcc
A0
B4
24
B0
A4
1
12
13
BEB
P24-1
SO24-2
SO24-8
SO24-9
PDIP/ SOIC/ QSOP/ TSSOP
TOP VIEW
COMMERCIAL TEMPERATURE RANGE
OCTOBER 1999
1
c
1999 Integrated Device Technology, Inc.
DSC-5523/-
