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PDF IDT74FST163209 Data sheet ( Hoja de datos )

Número de pieza IDT74FST163209
Descripción 9-BIT BUS EXCHANGE SWITCH
Fabricantes Integrated Device 
Logotipo Integrated Device Logotipo



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9-BIT BUS EXCHANGE
SWITCH
IDT74FST163209
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 – 4
• 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
DESCRIPTION:
The FST163209 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 FST163209 provides four 9-bit TTL- compatible ports
that support 2 way bus exchange. The S0-2 pins control the
bus exchange and switch enable functions.
FUNCTIONAL BLOCK DIAGRAM
1 of 9 Channels
1A1 1B1
1A2 1B2
Flow Control
S0
S1
S2
3510 drw 01
PIN DESCRIPTION
Pin Names
A1, A2
B1, B2
S0-2
I/O
I/O
I
Description
Buses A1, A2, B1, B2
Control Pins for Mux and Switch
Enable Functions
3510 tbl 01
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
COMMERCIAL TEMPERATURE RANGE
©1996 Integrated Device Technology, Inc.
1
SEPTEMBER 1996
DSC-3510/1

1 page




IDT74FST163209 pdf
IDT74FST163209
9-BIT BUS EXCHANGE SWITCH
COMMERCIAL TEMPERATURE RANGE
TEST CIRCUITS AND WAVEFORMS
TEST CIRCUITS FOR ALL OUTPUTS
V CC
VIN
Pulse
Generator
D.U.T.
RT
VOUT
50pF
CL
500
500
7.0V
SWITCH POSITION
Test
Switch
Open Drain
Disable Low
Closed
Enable Low
All Other Tests
Open
DEFINITIONS:
3510 lnk 08
CL= Load capacitance: includes jig and probe capacitance.
RT = Termination resistance: should be equal to ZOUT of the Pulse
Generator.
3510 lnk 03
SET-UP, HOLD AND RELEASE TIMES
PULSE WIDTH
DATA
INPUT
TIMING
tSU tH
3V
1.5V
0V
3V
LOW-HIGH-LOW
PULSE
1.5V
INPUT
ASYNCHRONOUS CONTROL
PRESET
tREM
1.5V
0V
3V
tW
CLEAR
ETC.
1.5V
0V
HIGH-LOW-HIGH
PULSE
1.5V
SYNCHRONOUS CONTROL
PRESET
CLEAR
CLOCK ENABLE
tSU
tH
3V
1.5V
0V
3510 lnk 05
ETC.
3510 lnk 04
PROPAGATION DELAY
SAME PHASE
INPUT TRANSITION
OUTPUT
OPPOSITE PHASE
INPUT TRANSITION
tPLH
tPLH
tPHL
tPHL
ENABLE AND DISABLE TIMES
3V
1.5V
0V
VOH
1.5V
VOL
3V
1.5V
0V
3510 lnk 06
ENABLE
CONTROL
INPUT
OUTPUT
NORMALLY
LOW
tPZL
SWITCH
CLOSED
tPZH
OUTPUT
NORMALLY
HIGH
SWITCH
OPEN
DISABLE
tPLZ
3.5V
1.5V
0.3V
tPHZ
1.5V
0V
0.3V
3V
1.5V
0V
3.5V
VOL
VOH
0V
NOTES:
3510 lnk 07
1. Diagram shown for input Control Enable-LOW and input Control Disable-
HIGH
2. Pulse Generator for All Pulses: Rate 1.0MHz; tF 2.5ns; tR 2.5ns
5

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