SN74CB3Q3253_15 Datasheet, PDF (1/25 Pages) Texas Instruments – Dual 1-of-4 FET Multiplexer – Demultiplexer

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SN74CB3Q3253
SCDS145B – OCTOBER 2003 – REVISED JUNE 2015
SN74CB3Q3253 Dual 1-of-4 FET Multiplexer – Demultiplexer
2.5-V – 3.3-V Low-Voltage High-Bandwidth Bus Switch
1 Features
•1 High-Bandwidth Data Path (Up to 500 MHz)
• 5-V Tolerant I/Os With Device Powered Up or
Powered Down
• Low and Flat ON-State Resistance (r_on)
Characteristics Over Operating Range
(r_on = 4 Ω Typical)
• Rail-to-Rail Switching on Data I/O Ports
– 0- to 5-V Switching With 3.3-V V_CC
– 0- to 3.3-V Switching With 2.5-V V_CC
• Bidirectional Data Flow With Near-Zero
Propagation Delay
• Low Input/Output Capacitance Minimizes Loading
and Signal Distortion (C_io(OFF) = 3.5 pF Typical)
• Fast Switching Frequency (f_OE = 20 MHz Max)
• Data and Control Inputs Provide Undershoot
Clamp Diodes
• Low Power Consumption (I_CC = 0.6 mA Typical)
• V_CC Operating Range From 2.3 V to 3.6 V
• Data I/Os Support 0- to 5-V Signal 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 and
3.3-V CMOS Outputs
• I_off 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 Both Digital and Analog Applications:
USB Interface, Differential Signal Interface Bus
Isolation, Low-Distortion Signal Gating
(1) _{For additional information regarding the performance}
characteristics of the CB3Q family, refer to the TI application
report CBT-C, CB3T, and CB3Q Signal-Switch Families,
(SCDA008).
3 Description
The SN74CB3Q3253 device is a high-bandwidth FET
bus switch using a charge pump to elevate the gate
voltage of the pass transistor, providing a low and flat
ON-state resistance (r_on). The low and flat ON-state
resistance allows for minimal propagation delay and
supports rail-to-rail switching on the data input and
output (I/O) ports.
Device Information
ORDER NUMBER
PACKAGE
BODY SIZE (NOM)
SN74CB3Q3253DBQ SSOP (16)
4.90 mm × 3.90 mm
SN74CB3Q3253DGV TVSOP (16)
3.60 mm × 4.40 mm
SN74CB3Q3253RGY VQFN (16)
4.00 mm × 3.50 mm
SN74CB3Q3253PW TSSOP (16)
5.00 mm × 4.40 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Logic Diagram (Positive Logic)
7
1A
SW
SW
SW
SW
6
1B1
5
1B2
4
1B3
3
1B4
9
2A
SW
SW
SW
SW
10
2B1
11
2B2
12
2B3
13
2B4
14
S0
2
S1
1
1OE
15
2OE
2 Applications
• Video Broadcasting: IP-Based Multi-Format
Transcoder
• Video Communications System
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.