U74CBT3257CG-P16-R [UTC]
4-BIT 1-OF-2 FET MULTIPLEXER / DEMULTIPLEXER;
| 型号： | U74CBT3257CG-P16-R |
| 厂家： | 
Unisonic Technologies |
| 描述： | 4-BIT 1-OF-2 FET MULTIPLEXER / DEMULTIPLEXER |
| 文件： | 总5页 (文件大小：224K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
U74CBT3257C
CMOS IC
4-BIT 1-OF-2 FET
MULTIPLEXER/
DEMULTIPLEXER
DESCRIPTION
The UTC U74CBT3257C is a 4-BIT 1-OF-2 FET multiplexer/
demultiplexer with Low ON-State Resistance (RON
)
and
TTL-compatibility.
FEATURES
Undershoot Protection for Off-Isolation on A and B Ports Up to -2V
VCC Operating Range From 4V to 5.5V
*
*
*
*
*
*
*
Bidirectional Data Flow, With Near-Zero Propagation Delay
Low ON-State Resistance (RON) Characteristics (RON =3Ω Typ.)
Low Power Consumption ICC =3μA (Max)
Data and Control Inputs Provide Undershoot Clamp Diodes
Data I/Os Support 0 to 5-V Signaling Levels
(0.8V, 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, 5V)
Control Inputs Can be Driven by TTL or 5V/3.3V CMOS Outputs
*
I
* OFF Supports Partial-Power-Down Mode Operation
Supports I2C Bus Expansion
*
ORDERING INFORMATION
Ordering Number
Package
SSOP-16
TSSOP-16
Packing
Tape Reel
Tape Reel
U74CBT3257CG-R16-R
U74CBT3257CG-P16-R
MARKING
SSOP-16
TSSOP-16
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Copyright © 2015 Unisonic Technologies Co., Ltd
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U74CBT3257C
CMOS IC
PIN CONFIGURATION
FUNCTION TABLE
INPUT
INPUT/OUTPUT
A
FUNCTION
S2
L
OE
L
B1
B2
Z
A port=B1 port
A port=B2 port
Disconnect
L
H
X
H
LOGIC DIAGRAM
1A
2A
SW
SW
1B1
1B2
2B1
2B2
SW
SW
3A
4A
3B1
3B2
SW
SW
SW
SW
4B1
4B2
S
OE
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U74CBT3257C
CMOS IC
ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
VCC
RATINGS
-0.5 ~ 7
UNIT
V
Supply Voltage
DC Input Voltage (Note 2, 3)
VIN
-0.5 ~ 7
V
VIN(SW)
VOUT(SW)
IIK
DC Switch Voltage (Note 2, 3)
-0.5 ~7
V
Control Input Clamp Current
DC VCC or GND Current
-50
mA
mA
ICC
±100
IIN(SW)
IOUT(SW)
TOPR
ON-State Switch Current
±128
mA
Operating Temperature
Storage Temperature
-40~+85
°C
°C
TSTG
-65~+150
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
SYMBOL
RATINGS
90
UNIT
°C/W
SSOP-16
Junction to Ambient
θJA
TSSOP-16
110
RECOMMENDED OPERATING CONDITIONS
PARAMETER
Supply Voltage
SYMBOL
VCC
MIN
4
TYP
MAX
5.5
5.5
0.8
5.5
5.5
85
UNIT
V
V
V
V
High-Level Control Input Voltage
Low-Level Control Input Voltage
Data Input Voltage
VIH
2
VIL
0
VIN
0
Data Output Voltage
VOUT
TA
0
Operating Temperature
-40
°C
ELECTRICAL CHARACTERISTICS (TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
VIK
TEST CONDITIONS
VCC =4.5V, IIN = -18mA
CC =5V, 0mA >IIN ≥ -50mA
MIN TYP MAX UNIT
Control Input Clamp Voltage
Data Inputs Clamp Voltage
Input Leakage Current
-1.8
V
V
VIKU
II(LEAK)
IOZ
-2
V
GND, Switch OFF
VCC =5.5V, VIN =VCC or GND
±1
µA
V
V
CC=5.5V, VOUT=0 to 5.5V, VIN=0
IN =VCC or GND, Switch OFF
Output OFF-State Current
Power OFF Leakage Current
Quiescent Supply Current
±10 µA
IOFF
ICC
VCC=0, VO=0 to 5.5V, VIN=0
CC=5.5 V, IIN /IOUT =0
VIN=VCC or GND, Switch ON or OFF
CC=5.5V, One input at 3.4V,
10
3
µA
µA
V
V
Additional Quiescent Supply Current
∆ICC
CIN
2.5 mA
Other inputs at VCC or GND
VIN=3V or 0 VCC=5V
Control Input Capacitance
A Port Input Capacitance
B Port Input Capacitance
Port Input Capacitance
3.5
8.5
5.5
16.5
8
pF
pF
pF
pF
VIN/VOUT=3V or 0, VCC=5V
VIN=VCC or GND, Switch OFF
CIO(OFF)
CIO(ON)
VI/O=3V or 0, VIN=VCC or 0, Switch ON
VCC=4V, VIN=2.4V,IOUT =-15mA
12
6
Ω
Ω
Ω
Ω
IOUT =64mA
VCC =4.5V, VIN =0
3
ON-Resistance
RON
IOUT =30mA
3
6
VCC =4.5V, VIN =2.4V IOUT =-15mA
5
10
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U74CBT3257C
CMOS IC
SWITCHING CHARACTERISTICS CL=50PF (see TEST CIRCUIT AND WAVEFORMS)
PARAMETER
SYMBOL
tPD
TEST CONDITIONS
VCC=4V, CL=50pF, RL=500Ω
VCC= 5V±0.5V, CL=50pF, RL=500Ω
VCC=4V, CL=50pF, RL=500Ω
MIN TYP MAX UNIT
0.24 ns
From input (A or B) to output
(B or A) (Note)
0.15 ns
6.0
5.6
6.3
ns
ns
ns
From input S to output A
tPD(S)
VCC= 5V±0.5V, CL=50pF, RL=500Ω
1.5
1.5
1.5
1.5
1.5
VCC=4V, CL=50pF, RL=500Ω
From input S to output B
VCC= 5V±0.5V, CL=50pF, RL=500Ω
VCC=4V, CL=50pF, RL=500Ω
5.8 ns
tEN
6.3
5.8
6.5
6.0
5.9
5.9
ns
ns
ns
ns
ns
ns
From input OE to output (A or B)
From input S to output B
VCC= 5V±0.5V, CL=50pF, RL=500Ω
VCC=4V, CL=50pF, RL=500Ω
VCC= 5V±0.5V, CL=50pF, RL=500Ω
VCC=4V, CL=50pF, RL=500Ω
tDIS
From input OE to output (A or B)
VCC= 5V±0.5V, CL=50pF, RL=500Ω
Note: The propagation delay is the calculated RC time constant of the typical ON-state resistance of the switch and
the specified load capacitance, when driven by an ideal voltage source (zero output impedance).
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U74CBT3257C
CMOS IC
TEST CIRCUIT AND WAVEFORMS
TEST
VCC
4V
VI
tR / tF
Vꢀ
S
CL
RL
VCC or GND
≤2.5ns
≤2.5ns
≤2.5ns
≤2.5ns
≤2.5ns
≤2.5ns
Open
Open
VEXT
50pF
50pF
50pF
50pF
50pF
50pF
500Ω
500Ω
500Ω
500Ω
500Ω
500Ω
tPLH/tPHL
5V±0.5V
4V
V
CC or GND
GND
0.3V
0.3V
0.3V
0.3V
tPLZ/tPZL
tPHZ/tPZH
5V±0.5V
4V
GND
VEXT
VCC
Open
Open
5V±0.5V
VCC
Propagation Delay Times
Notes: 1. CL includes probe and jig capacitance.
Enable and Disable Times
2. All input pulses are supplied by generators having the following characteristics: PRR≤10MHz,
ZO=50Ω, tR≤2.5ns, tF≤2.5 ns.
3. The outputs are measured one at a time with one transition per measurement.
4. tPLZ and tPHZ are the same as tDIS
5. tPZL and tPZH are the same as tEN
6. tPLH and tPHL are the same as tPD(S)
7. All parameters and waveforms are not applicable to all devices.
.
.
.
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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