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SN74CB3Q3253 Datenblatt(PDF) 1 Page - Texas Instruments

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Teilenummer SN74CB3Q3253
Bauteilbeschribung  DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER 2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH
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Hersteller  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

SN74CB3Q3253 Datenblatt(HTML) 1 Page - Texas Instruments

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FEATURES
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1OE
S1
1B4
1B3
1B2
1B1
1A
GND
VCC
2OE
S0
2B4
2B3
2B2
2B1
2A
DBQ, DGV, OR PW PACKAGE
(TOP VIEW)
RGY PACKAGE
(TOP VIEW)
1
16
8
9
2
3
4
5
6
7
15
14
13
12
11
10
2OE
S0
2B4
2B3
2B2
2B1
S1
1B4
1B3
1B2
1B1
1A
DESCRIPTION/ORDERING INFORMATION
SN74CB3Q3253
DUAL 1-OF-4 FET MULTIPLEXER/DEMULTIPLEXER
2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH
SCDS145A – OCTOBER 2003 – REVISED MARCH 2005
Data and Control Inputs Provide Undershoot
Clamp Diodes
High-Bandwidth Data Path (up to 500 MHz (1))
Low Power Consumption (I
CC = 0.6 mA Typ)
5-V Tolerant I/Os With Device Powered Up or
Powered Down
V
CC Operating Range From 2.3 V to 3.6 V
Low and Flat ON-State Resistance (r
on)
Data I/Os Support 0- to 5-V Signal Levels (0.8
Characteristics Over Operating Range
V, 1.2 V, 1.5 V, 1.8 V, 2.5 V, 3.3 V, 5 V)
(r
on = 4 Ω Typ)
Control Inputs Can be Driven by TTL or
Rail-to-Rail Switching on Data I/O Ports
5-V/3.3-V CMOS Outputs
– 0- to 5-V Switching With 3.3-V V
CC
I
off Supports Partial-Power-Down Mode
Operation
– 0- to 3.3-V Switching With 2.5-V V
CC
Latch-Up Performance Exceeds 100 mA Per
Bidirectional Data Flow With Near-Zero
JESD 78, Class II
Propagation Delay
ESD Performance Tested Per JESD 22
Low Input/Output Capacitance Minimizes
Loading and Signal Distortion
– 2000-V Human-Body Model (A114-B,
(C
io(OFF) = 3.5 pF Typ)
Class II)
Fast Switching Frequency (f
OE = 20 MHz Max)
– 1000-V Charged-Device Model (C101)
Supports Both Digital and Analog
(1)
For additional information regarding the performance
Applications: USB Interface, Differential
characteristics of the CB3Q family, refer to the TI application
Signal Interface Bus Isolation, Low-Distortion
report CBT-C, CB3T, and CB3Q Signal-Switch Families,
literature number SCDA008.
Signal Gating
The SN74CB3Q3253 is a high-bandwidth FET bus switch utilizing a charge pump to elevate the gate voltage of
the pass transistor, providing a low and flat ON-state resistance (ron). The low and flat ON-state resistance allows
for minimal propagation delay and supports rail-to-rail switching on the data input/output (I/O) ports. The device
also features low data I/O capacitance to minimize capacitive loading and signal distortion on the data bus.
Specifically designed to support high-bandwidth applications, the SN74CB3Q3253 provides an optimized
interface solution ideally suited for broadband communications, networking, and data-intensive computing
systems.
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.
Copyright © 2003–2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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