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FET MULTIPLEXER/DEMULTIPLEXER. SN74CBT3253CD Datasheet

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FET MULTIPLEXER/DEMULTIPLEXER. SN74CBT3253CD Datasheet






SN74CBT3253CD MULTIPLEXER/DEMULTIPLEXER. Datasheet pdf. Equivalent




SN74CBT3253CD MULTIPLEXER/DEMULTIPLEXER. Datasheet pdf. Equivalent





Part

SN74CBT3253CD

Description

DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER



Feature


www.ti.com SN74CBT3253C DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 5-V BUS SWIT CH WITH –2-V UNDERSHOOT PROTECTION SC DS123B – JULY 2003 – REVISED JANUAR Y 2007 FEATURES • SN74CBT3253C Funct ionally Identical to Industry-Standard ’3253 Function • Undershoot Protect ion for Off-Isolation on A and B Ports up to –2 V • Bidirectional Data Flo w, With Near-Zero Propagation Dela.
Manufacture

Texas Instruments

Datasheet
Download SN74CBT3253CD Datasheet


Texas Instruments SN74CBT3253CD

SN74CBT3253CD; y • Low ON-State Resistance (ron) Char acteristics (ron = 3 Ω Typical) • L ow Input/Output Capacitance Minimizes L oading and Signal Distortion (Cio(OFF) = 5.5 pF Typical) • Data and Control Inputs Provide Undershoot Clamp Diodes • Low Power Consumption (ICC = 3 µA Max) • VCC Operating Range From 4 V t o 5.5 V • Data I/Os Support 0 to 5-V Signaling Levels (0.8 V, 1.2 V, 1.


Texas Instruments SN74CBT3253CD

.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V) • Cont rol Inputs Can Be Driven by TTL or 5-V/ 3.3-V CMOS Outputs • Ioff Supports Pa rtial-Power-Down Mode Operation • Lat ch-Up Performance Exceeds 100 mA Per JE SD 78, Class II • ESD Performance Tes ted Per JESD 22 – 2000-V Human-Body M odel (A114-B, Class II) – 1000-V Char ged-Device Model (C101) • Supports I2 C Bus Expansion • Supports Both .


Texas Instruments SN74CBT3253CD

Digital and Analog Applications: USB Int erface, Bus Isolation, Low-Distortion S ignal Gating DESCRIPTION/ORDERING INFO RMATION The SN74CBT3253C is a high-spee d TTL-compatible FET multiplexer/demult iplexer with low ON-state resistance (r on), allowing for minimal propagation d elay. Active Undershoot-Protection Circ uitry on the A and B ports of the SN74C BT3253C provides p.

Part

SN74CBT3253CD

Description

DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER



Feature


www.ti.com SN74CBT3253C DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 5-V BUS SWIT CH WITH –2-V UNDERSHOOT PROTECTION SC DS123B – JULY 2003 – REVISED JANUAR Y 2007 FEATURES • SN74CBT3253C Funct ionally Identical to Industry-Standard ’3253 Function • Undershoot Protect ion for Off-Isolation on A and B Ports up to –2 V • Bidirectional Data Flo w, With Near-Zero Propagation Dela.
Manufacture

Texas Instruments

Datasheet
Download SN74CBT3253CD Datasheet




 SN74CBT3253CD
www.ti.com
SN74CBT3253C
DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER
5-V BUS SWITCH WITH –2-V UNDERSHOOT PROTECTION
SCDS123B – JULY 2003 – REVISED JANUARY 2007
FEATURES
SN74CBT3253C Functionally Identical to
Industry-Standard ’3253 Function
Undershoot Protection for Off-Isolation on A
and B Ports up to –2 V
Bidirectional Data Flow, With Near-Zero
Propagation Delay
Low ON-State Resistance (ron) Characteristics
(ron = 3 Typical)
Low Input/Output Capacitance Minimizes
Loading and Signal Distortion
(Cio(OFF) = 5.5 pF Typical)
Data and Control Inputs Provide Undershoot
Clamp Diodes
Low Power Consumption (ICC = 3 µA Max)
VCC Operating Range From 4 V to 5.5 V
Data I/Os Support 0 to 5-V Signaling Levels
(0.8 V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V)
Control Inputs Can Be Driven by TTL or
5-V/3.3-V CMOS Outputs
Ioff Supports Partial-Power-Down Mode
Operation
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
ESD Performance Tested Per JESD 22
– 2000-V Human-Body Model
(A114-B, Class II)
– 1000-V Charged-Device Model (C101)
Supports I2C Bus Expansion
Supports Both Digital and Analog
Applications: USB Interface, Bus Isolation,
Low-Distortion Signal Gating
DESCRIPTION/ORDERING INFORMATION
The SN74CBT3253C is a high-speed TTL-compatible FET multiplexer/demultiplexer with low ON-state
resistance (ron), allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B
ports of the SN74CBT3253C provides protection for undershoot up to –2 V by sensing an undershoot event and
ensuring that the switch remains in the proper OFF state.
The SN74CBT3253C is organized as two 1-of-4 multiplexer/demultiplexers with separate output-enable (1OE,
2OE) inputs. The select (S0, S1) inputs control the data path of each multiplexer/demultiplexer. When OE is low,
the associated multiplexer/demultiplexer is enabled, and the A port is connected to the B port, allowing
bidirectional data flow between ports. When OE is high, the associated multiplexer/demultiplexer is disabled, and
a high-impedance state exists between the A and B ports.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2003–2007, Texas Instruments Incorporated




 SN74CBT3253CD
SN74CBT3253C
DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER
5-V BUS SWITCH WITH –2-V UNDERSHOOT PROTECTION
SCDS123B – JULY 2003 – REVISED JANUARY 2007
www.ti.com
DESCRIPTION/ORDERING INFORMATION (CONTINUED)
This 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.
TA
–40°C to 85°C
ORDERING INFORMATION
PACKAGE (1)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
QFN – RGY
Reel of 1000
SN74CBT3253CRGYR
CU253C
SOIC – D
Tube of 40
Reel of 2500
SN74CBT3253CD
SN74CBT3253CDR
CBT3253C
SSOP – DB
Tube of 80
Reel of 2000
SN74CBT3253CDB
SN74CBT3253CDBR
CU253C
SSOP (QSOP) – DBQ Reel of 2500
SN74CBT3253CDBQR
CU253C
TSSOP – PW
Tube of 90
Reel of 2000
SN74CBT3253CPW
SN74CBT3253CPWR
CU253C
(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
FUNCTION TABLE
(each multiplexer/demultiplexer)
INPUTS
OE
S1
S0
L
L
L
L
L
H
L
H
L
L
H
H
H
X
X
INPUT/OUTPUT
A
B1
B2
B3
B4
X
FUNCTION
A port = B1 port
A port = B2 port
A port = B3 port
A port = B4 port
Disconnect
2
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 SN74CBT3253CD
www.ti.com
7
1A
9
2A
SN74CBT3253C
DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER
5-V BUS SWITCH WITH –2-V UNDERSHOOT PROTECTION
SCDS123B – JULY 2003 – REVISED JANUARY 2007
LOGIC DIAGRAM (POSITIVE LOGIC)
SW
SW
SW
SW
6
1B1
5
1B2
4
1B3
3
1B4
SW
SW
SW
SW
10
2B1
11
2B2
12
2B3
13
2B4
14
S0
2
S1
1
1OE
15
2OE
SIMPLIFIED SCHEMATIC, EACH FET SWITCH (SW)
(1) EN is the internal enable signal applied to the switch.
EN(1)
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3






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