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US5C3257 Datasheet(PDF) 5 Page - Unisonic Technologies

Part No. US5C3257
Description  QUAD 2:1 MUX/DEMUX BUS SWITCH
Download  6 Pages
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

US5C3257 Datasheet(HTML) 5 Page - Unisonic Technologies

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US5C3257
Preliminary
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
5 of 6
www.unisonic.com.tw
QW-R502-891.a
POWER SUPPLY CHARACTERISTICS
PARAMETER
SYMBOL
TEST CONDITIONS (Note 1)
MIN
TYP
(Note 2)
MAX
UNIT
Quiescent Power Supply Current
ICC
VCC=Max., VIN=GND or VCC
0.1
3.0
µA
Supply Current per Input @ TTL
HIGH
∆ICC
VCC=Max., VIN=3.4V (Note 3)
2.5
mA
Supply Current per Input per MHz
(Note 4)
ICCD
VCC=Max., I and Y Pins Open
BE
=GND, Control Input Toggling
50% Duty Cycle
0.25
mA/
MHz
Notes:1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the
applicable device type.
2. Typical values are at VCC=5.0V, TA=25°C ambient and maximum loading.
3. Per TTL driven input (VIN=3.4V, control inputs only); I and Y pins do not contribute to ICC.
4. This current applies to the control inputs only and represent the current required to switch internal
capacitance at the specified frequency. The I and Y inputs generate no significant AC or DC currents as
they transition. This parameter is not tested, but is guaranteed by design.
SWITCHING CHARACTERISTICS OVER OPERATIONG RANGE
PARAMETER
SYMBOL
TEST CONDITIONS (Note 1)
MIN
TYP
MAX
UNIT
Propagation Delay In to Yn
(Note 2, 3)
tIY
CL=50pF, RL=500Ω
0.25
ns
Bus Select Time Sn to Yn
tSY
0.5
5.2
ns
Bus Disable Time E to Yn
tPZH / tPZL
0.5
4.8
ns
Bus Disable Time E to Yn
tPHZ / tPLZ
0.5
5.0
ns


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