Datasheet

UNISONIC TECHNOLOGIES CO., LTD
U74CBTLV3125
CMOS IC
LOW-VOLTAGE QUADRUPLE
FET BUS SWITCH

DESCRIPTION
The U74CBTLV3125 quadruple FET bus switch features
independent line switches. Each switch is disabled when the
associated output-enable ( OE ) input is high.
The device is fully specified for partial-power-down applications
using Ioff. The Ioff feature ensures that damaging current will not
backflow through the device when it is powered down. The device
has isolation during power off.
To ensure the high-impedance state during power up or power
down, OE should be tied to VCC through a pullup resistor; the
minimum value of the resistor is determined by the current-sinking
capability of the driver.

FEATURES
* 5-Ω Switch Connection Between Two Ports
* Standard ‘125-Type Pinout
* Isolation Under Power-Off Conditions

ORDERING INFORMATION
Ordering Number
U74CBTLV3125G-P14-R

Package
TSSOP-14
Packing
Tape Reel
MARKING
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co., Ltd
1 of 6
QW-R502-959.B
U74CBTLV3125

CMOS IC
PIN CONFIGURATION
1OE
4OE
2OE
3OE


FUNCTION TABLE (each bus switch)
INPUT OE
FUNCTION
L
H
A port = B port
Disconnect
LOGIC DIAGRAM (positive logic)
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 6
QW-R502-959.B
U74CBTLV3125

CMOS IC
SIMPLIFIED SCHEMATIC(each FET switch)
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 6
QW-R502-959.B
U74CBTLV3125

CMOS IC
ABSOLUTE MAXIMUM RATING (unless otherwise specified)(Note 1)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
-0.5~4.6
V
Input Voltage
VI
-0.5~4.6
V
Continuous channel current
128
mA
Input Clamp Current(VI/O<0)
IIK
-50
mA
Storage Temperature
TSTG
-65 ~ +150
°C
Notes: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51.

THERMAL DATA
PARAMETER
Junction to Ambient

SYMBOL
θJA
RATINGS
113
UNIT
°C/W
RECOMMENDED OPERATING COMDITIONS
PARAMETER
SYMBOL
VCC
Supply Voltage
High-control input voltage
VIH
TEST CONDITIONS
VCC=2.3V~2.7V
VCC=2.7V~3.6V
VCC=2.3V~2.7V
VCC=2.7V~3.6V
MIN
2.3
1.7
2
TYP
MAX UNIT
3.6
V
V
0.7
0.8
Operating Temperature
TA
-40
-85
Note: All unused control inputs of the device must be held at VCC or GND to ensure proper device operation.
Low-control input voltage

VIL
°C
STATIC CHARACTERISTICS
PARAMETER
SYMBOL
TEST CONDITIONS
Digital Input Diode Voltage
VIK
VCC =3V, II=-18mA
Input Leakage Current
II
VCC=3.6V, VI=VCC or GND
Power off Leakage Carrent
Ioff
VCC=0,VI or VO=0 to 4.5V
Quiosceut Supply Current
ICC
VCC=3.6V, VI= VCC or GND, IO=0
Additional
VCC=3.6V, One input at 3V,
Quiescent Supply Control inputs
∆ICC
Other inputs at VCC or GND
Current
Control input Capacitance
CI
VO=3V or 0
I/O Capacitance (OFF)
CIO(OFF) VO=3V or 0, OE=GND
VCC=2.3V
TYP at VCC=2.5V
Resistor between two ports
RON
VCC=3V
VI=0
VI=1.7V
VI=0V
VI=2.4V
Note: All typical values are at VCC=3.3V, TA=25°C, unless otherwise noted.

V
MIN
TYP
MAX UNIT
-1.2
V
±1
μA
10
μA
10
μA
300
2.5
7
5
5
27
5
5
10
II=64mA
II=24mA
II=-15mA
II=64mA
II=24mA
II=-15mA
μA
pF
pF
8
8
40
7
7
15
Ω
DYNAMIC CHARACTERISTICS
See Fig. 1 and Fig. 2 for test circuit and waveforms.
PARAMETER
SYMBOL
From input (A or B) to output (B or A)
tpd ( tPLH/tPHL )
From input (OE) to output (A or B)
ten ( tPZL/tPZH )
From input (OE) to output (A or B)
tdis ( tPLZ/tPHZ )
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
TEST CONDITIONS
VCC=2.5V±0.2V
VCC=3.3V±0.3V
VCC=2.5V±0.2V
VCC=3.3V±0.3V
VCC=2.5V±0.2V
VCC=3.3V±0.3V
MIN
2
2
1.1
1.0
TYP
MAX UNIT
0.35
ns
0.25
4.6
4.4
ns
3.9
4.2
4 of 6
QW-R502-959.B
U74CBTLV3125

CMOS IC
TEST CIRCUIT AND WAVEFORMS
Note: CL includes probe and jig capacitance.
tPLZ and tPHZ are the same as tdis.
tPZL and tPZH are the same as ten.
tPLH and tPHL are the same as tPD.
Fig. 1 Load circuitry for switching times.
Note: All input pulses are supplied by generators having the following characteristics:
tr, tf ≤ 2ns; PRR ≤10MHz; ZO=50Ω.
Fig. 2 Propagation delay from input(A) to output(B) and Output transition time.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 6
QW-R502-959.B
U74CBTLV3125
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.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
6 of 6
QW-R502-959.B
Similar pages