Datasheet

UNISONIC TECHNOLOGIES CO., LTD
US5C3257
Preliminary
CMOS IC
QUAD 2:1 MUX/DEMUX BUS
SWITCH
„
DESCRIPTION
The UTC US5C3257 is a QUAD 2:1 multiplexer/demultiplexer
with low on-resistance and is pinout and function compatible with
the TTL device. Inputs can be connected to outputs with low on
resistance (5Ω) with no additional ground bounce noise or
propagation delay.
„
FEATURES
* 5Ω switches connect inputs to outputs
* ESD protection on pin
* Near zero propagation delay
* Ultra Low Quiescent Power (0.2µA Typical)
–Ideally suited for notebook applications
* Direct bus connection when switches are ON
* Pin compatible with U74 series logic devices
„
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
US5C3257L-S16-R
US5C3257G-S16-R
US5C3257L-S16-T
US5C3257G-S16-T
Note: xx: Output Voltage, refer to Marking Information.
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Copyright © 2013 Unisonic Technologies Co., Ltd
Package
Packing
SOP-16
SOP-16
Tape Reel
Tube
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Preliminary
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PIN CONFIGURATION
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PIN DESCRIPTION
PIN NO.
1
2, 3, 5, 6, 10,
11,13,14,
4, 7, 9, 12
8
15
16
PIN NAME
S
DESCRIPTION
Select Inputs
IAn-IDn
Data Inputs
YA-YD
GND
Data Outputs
Ground
Enable
E
VCC
CMOS IC
Power
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„
Preliminary
CMOS IC
BLOCK DIAGRAM
IA0
IA1
IB1
IB0
IC1
IC0
ID1
ID0
E
S
YA
„
YC
YB
YD
TRUTH TABLE
E
S
YA
YB
YC
YD
Function
H
X
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Disable
L
L
IA0
IB0
IC0
ID0
S=0
L
H
IA1
IB1
IC1
ID1
S=1
Note: H=High Voltage Level, L=Low Voltage Level
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„
Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage to Ground Potential (Inputs & VCC Only)
-0.5~+7.0
V
Supply Voltage to Ground Potential (Outputs & D/O Only)
-0.5~+7.0
V
DC Input Voltage
-0.5~+7.0
V
DC Output Current
120
mA
Power Dissipation
PD
0.5
W
Storage Temperature
TSTG
-55~+150
°C
Ambient Temperature with Power Applied
TOPR
-40~+85
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
„
DC ELECTRICAL CHARACTERISTICS
(Typical application at VCC=5 V, TA=25°C, unless otherwise noted)
PARAMETER
Input HIGH Voltage
Input LOW Voltage
Input HIGH Current
Input LOW Current
High Impedance Output Current
Clamp Diode Voltage
Short Circuit Current (Note 2)
Input Hysteresis at Control Pins
Switch On Resistance (Note 3)
„
SYMBOL
VIH
VIL
IIH
IIL
IOZH
VIK
IOS
VH
RON
TEST CONDITIONS (Note 1)
Guaranteed Logic HIGH Level
Guaranteed Logic LOW Level
VCC=Max., VIN=VCC
VCC=Max., VIN=GND
0≤I, Y≤VCC
VCC=Min., IIN=-18mA
I(Y)=0V, Y(I)=VCC
VCC=Min., VIN=0.0V, ION=48mA
VCC=Min., VIN=2.4V, ION=15mA
MIN
TYP
MAX
(Note 1)
2.0
-0.5
-0.7
0.8
±1
±1
±1
-1.2
150
5
10
7
15
100
UNIT
V
V
µA
µA
µA
V
mA
mV
Ω
Ω
CAPACITANCE (TA=25°C, f=1MHz)
PARAMETER (Note 4)
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input Capacitance
CIN
VIN=0V
6
pF
In/Yn Capacitance, Switch Off
COFF
VIN=0V
6
pF
In/Yn Capacitance, Switch On
CON
VIN=0V
14
pF
Notes: 1. Typical values are at VCC=5.0V, TA=25°C ambient and maximum loading.
2. Not more than one output should be shorted at one time. Duration of the test should not exceed one
second.
3. Measured by the voltage drop between I and Y pin at indicated current through the switch. ON resistance is
determined by the lower of the voltages on the two (I, Y) pins.
4. This parameter is determined by device characterization but is not production tested.
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Preliminary
CMOS IC
POWER SUPPLY CHARACTERISTICS
PARAMETER
Quiescent Power Supply Current
Supply Current per Input @ TTL
HIGH
SYMBOL
ICC
∆ICC
TEST CONDITIONS (Note 1)
MIN
VCC=Max., VIN=GND or VCC
TYP
MAX
(Note 2)
0.1
3.0
VCC=Max., VIN=3.4V (Note 3)
2.5
UNIT
µA
mA
VCC=Max., I and Y Pins Open
mA/
0.25
BE =GND, Control Input Toggling
MHz
50% Duty Cycle
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.
Supply Current per Input per MHz
(Note 4)
„
ICCD
SWITCHING CHARACTERISTICS OVER OPERATIONG RANGE
PARAMETER
Propagation Delay In to Yn
(Note 2, 3)
Bus Select Time Sn to Yn
SYMBOL
TEST CONDITIONS (Note 1)
MAX
UNIT
0.25
ns
0.5
0.5
5.2
4.8
ns
ns
0.5
5.0
ns
tIY
Bus Disable Time E to Yn
tSY
tPZH / tPZL
Bus Disable Time E to Yn
tPHZ / tPLZ
CL=50pF, RL=500Ω
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MIN
TYP
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Preliminary
CMOS IC
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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