74CBTLV3257 SWITCH Datasheet

74CBTLV3257 Datasheet, PDF, Equivalent


Part Number

74CBTLV3257

Description

LOW-VOLTAGE QUAD 2:1MUX/DEMUX BUS SWITCH

Manufacture

Renesas

Total Page 6 Pages
Datasheet
Download 74CBTLV3257 Datasheet


74CBTLV3257
74CBTLV3257
LOW-VOLTAGE QUAD 2:1 MUX/DEMUX BUS SWITCH
LOW-VOLTAGE
QUAD 2:1MUX/DEMUX
BUS SWITCH
INDUSTRIALTEMPERATURERANGE
74CBTLV3257
FEATURES:
• Functionally equivalent to QS3257
• 5Ω bi-directional switch connection between two ports
• Isolation under power-off conditions
• Over-voltage tolerant
• Latch-up performance exceeds 100mA
• VCC = 2.3V - 3.6V, Normal Range
• ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)
• Available in QSOP and TSSOP packages
DESCRIPTION:
The CBTLV3257 is a quad 2:1 multiplexer/demultiplexer. The low on-
state resistance of the switch allows connections to be made with minimal
propagation delay.
The select (S) input controls the data flow. The multiplexers/demultiplexers
are enabled when the output-enable (OE) input is low.
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.
APPLICATIONS:
• 3.3V High Speed Bus Switching, Multiplexing, and Bus Isolation
FUNCTIONAL BLOCK DIAGRAM
1A SW
SW
2A SW
SW
3A SW
SW
4A SW
SW
SIMPLIFIED SCHEMATIC, EACH
SWITCH
1B1
1B2
2B1
A
2B2
B
3B1
3B2
4B1
FROM ENABLE
4B2 CIRCUITRY
S
OE
INDUSTRIAL TEMPERATURE RANGE
© 2019 Integrated Device Technology, Inc.
1
MAY 2019
DSC-5744/6

74CBTLV3257
74CBTLV3257
LOW-VOLTAGE QUAD 2:1 MUX/DEMUX BUS SWITCH
PIN CONFIGURATION
S
1B1
1B2
1A
2B1
2B2
2A
GND
1
2
3
4
5
6
7
8
16 VCC
15 OE
14 4B1
13 4B2
12 4A
11 3B1
10 3B2
9 3A
Package Type
TSSOP
QSOP
TOP VIEW
Package Code
PGG16
PCG16
Order Code
PGG
QG
INDUSTRIALTEMPERATURERANGE
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Description
Max
VCC SupplyVoltage Range
–0.5 to +4.6
VI Input Voltage Range
–0.5 to +4.6
Continuous Channel Current
128
IIK Input Clamp Current, VI/O < 0
–50
TSTG Storage Temperature
–65 to +150
Unit
V
V
mA
mA
°C
NOTE:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and functional operation
of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
FUNCTION TABLE(1)
Inputs
OE S
LL
LH
HX
NOTE:
1. H = HIGH Voltage Level
L = LOW Voltage Level
X = Don't Care
Function
A Port = B1 Port
A Port = B2 Port
Disconnect
OPERATING CHARACTERISTICS, TA = 25°C(1)
Symbol
VCC
VIH
Parameter
Supply Voltage
High-Level Control Input Voltage
VIL Low-Level Control Input Voltage
TA OperatingFree-AirTemperature
Test Conditions
VCC = 2.3V to 2.7V
VCC = 2.7V to 3.6V
VCC = 2.3V to 2.7V
VCC = 2.7V to 3.6V
NOTE:
1. All unused control inputs of the device must be held at VCC or GND to ensure proper device operation.
Min.
2.3
1.7
2
40
Max. Unit
3.6 V
—V
0.7 V
0.8
85 °C
2


Features 74CBTLV3257 LOW-VOLTAGE QUAD 2:1 MUX/DEM UX BUS SWITCH LOW-VOLTAGE QUAD 2:1MUX/D EMUX BUS SWITCH INDUSTRIALTEMPERATURER ANGE 74CBTLV3257 FEATURES: • Functio nally equivalent to QS3257 • 5Ω bi-d irectional switch connection between tw o ports • Isolation under power-off c onditions • Over-voltage tolerant • Latch-up performance exceeds 100mA • VCC = 2.3V - 3.6V, Normal Range • ES D > 2000V per MIL-STD-883, Method 3015; > 200V using machine model (C = 200pF, R = 0) • Available in QSOP and TSSOP packages DESCRIPTION: The CBTLV3257 i s a quad 2:1 multiplexer/demultiplexer. The low onstate resistance of the swit ch allows connections to be made with m inimal propagation delay. The select (S ) input controls the data flow. The mul tiplexers/demultiplexers are enabled wh en the output-enable (OE) input is low. To ensure the high-impedance state dur ing power up or power down, OE should b e tied to VCC through a pullup resistor ; the minimum value of the resistor is determined by the current-sinking capabil.
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