U74CBT3251 Datasheet PDF - Unisonic Technologies


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U74CBT3251
Unisonic Technologies

Part Number U74CBT3251
Description 1-OF-8 FET MULTIPLEXER/DEMULTIPLEXER
Page 6 Pages

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UNISONIC TECHNOLOGIES CO., LTD
U74CBT3251
1-OF-8 FET MULTIPLEXER/
DEMULTIPLEXER
CMOS IC
DESCRIPTION
The U74CBT3251 is a 1-OF-8 high-speed TTL-compatible FET
multiplexer / demultiplexer. The low on-state resistance of the
switch allows connections to be made with minimal propagation
delay.
When output enable (OE) is low, the U74CBT3251 is enabled.
S0, S1, and S2 select one of the B outputs for the A-input data.
FEATURES
* VCC Operating Range From 4V to 5.5V
* Bidirectional Data Flow, With minimal Propagation Delay
* Low ON-State Resistance (RON) Characteristics (RON =5Typ.)
* Low Power Consumption ICC=3μA (Max)
ORDERING INFORMATION
Ordering Number
U74CBT3251G-R16-R
U74CBT3251G-P16-R
Package
SSOP-16
TSSOP-16
Packing
Tape Reel
Tape Reel
MARKING
SSOP-16
TSSOP-16
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U74CBT3251
PIN CONFIGURATION
CMOS IC
FUNCTION TABLE
INPUT
OE S2
S1
LL
L
LL
L
LL
H
LL
H
LH
L
LH
L
LH
H
LH
H
HX
X
S0
L
H
L
H
L
H
L
H
X
FUNCTION
A port=B1 port
A port=B2 port
A port=B3 port
A port=B4 port
A port=B5 port
A port=B6 port
A port=B7 port
A port=B8 port
Disconnect
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U74CBT3251
LOGIC DIAGRAM
A SW
SW
SW
SW
SW
SW
SW
SW
CMOS IC
B1
B2
B3
B4
B5
B6
B7
B8
OE
S0
S1
S2
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U74CBT3251
CMOS IC
ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
-0.5 ~ 7
V
DC Input Voltage(see Note 2,3)
Control Input Clamp Current
VIN
IIK
-0.5 ~ 7
-50
V
mA
ON-State Switch Current
IIN(SW)
IOUT(SW)
±128
mA
Operating Temperature
Storage Temperature
TOPR
TSTG
-40~+85
-65~+150
°C
°C
Notes: 1. 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.
2. All voltages are with respect to ground
3. The input and output voltage ratings may be exceeded if the input and output clamp-current ratings are
observed.
THERMAL DATA
PARAMETER
Junction to Ambient
SSOP-16
TSSOP-16
SYMBOL
θJA
RATINGS
90
110
UNIT
°C/W
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
High-Level Control Input Voltage
Low-Level Control Input Voltage
Data Input Voltage
Data Output Voltage
Operating Temperature
SYMBOL
VCC
VIH
VIL
VIN
VOUT
TA
MIN
4
2
0
0
0
-40
TYP
ELECTRICAL CHARACTERISTICS (Ta=25°C, unless otherwise specified)
MAX
5.5
5.5
0.8
5.5
5.5
85
UNIT
V
V
V
V
V
°C
PARAMETER
Control Input Clamp Voltage
Input Leakage Current
Quiescent Supply Current
Additional Quiescent Supply
Current
Control Input Capacitance
A Port Input Capacitance
B Port Input Capacitance
ON-Resistance
SYMBOL
VIK
II(LEAK)
ICC
ICC
CIN
CIO(OFF)
RON
TEST CONDITIONS
VCC =4.5V, IIN = -18mA
VCC =5.5V, VIN =VCC or GND
VCC=5.5 V, IIN /IOUT =0
VIN=VCC or GND, Switch ON or OFF
VCC=5.5V, One input at 3.4V,
Other inputs at VCC or GND
VIN=3V or 0
VCC=5V, VIN/VOUT=3V or 0
VIN=VCC or GND, Switch OFF
VCC=4V, VIN=2.4V, IOUT =-15mA
VCC =4.5V, VIN =0
IOUT =64mA
IOUT =30mA
VCC =4.5V, VIN =2.4V IOUT =-15mA
MIN TYP MAX UNIT
-1.2 V
±1 µA
3 µA
2.5
3.5
17.5
4
14 20
57
57
10 15
mA
pF
pF
pF
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www.unisonic.com.tw
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