SN74CB3Q3257 4-Channel, 2:1 Switch with 5V Tolerant I/Os | TI.com

SN74CB3Q3257
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4-Channel, 2:1 Switch with 5V Tolerant I/Os

 

Recommended alternative parts

  • TMUX1574  -  2-Ω RON, 1.5-GHz analog switch with 1.8-V compatible control logic

Description

The SN74CB3Q3257 device 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).

Features

  • 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 (ron) Characteristics Over Operating Range
    (ron= 4 Ω Typical)
  • Rail-to-Rail Switching on Data I/O Ports
    • 0- to 5-V Switching With 3.3-V VCC
    • 0- to 3.3-V Switching With 2.5-V VCC
  • Bidirectional Data Flow With Near-Zero Propagation Delay
  • Low Input and Output Capacitance Minimizes Loading and Signal Distortion
    (Cio(OFF) = 3.5 pF Typical)
  • Fast Switching Frequency (f OE = 20 MHz Maximum)
  • Data and Control Inputs Provide Undershoot Clamp Diodes
  • Low Power Consumption
    (ICC = 0.7 mA Typical)
  • VCC Operating Range From 2.3 V to 3.6 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 Both Digital and Analog Applications: USB Interface, Differential Signal Interface,
    Bus Isolation, Low-Distortion Signal Gating (1)

(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.

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Parametrics

Compare all products in Analog switches/muxes Email Download to Excel
Part number Order Configuration Number of channels (#) Ron (Typ) (Ohms) Bandwidth (MHz) Rating Operating temperature range (C) Package Group Input/output continuous current (Max) (mA) Supply current (Typ) (uA) Features ON-state leakage current (Max) (µA) CON (Typ) (pF)
SN74CB3Q3257 Order now 2:1 SPDT     4     4     500     Catalog     -40 to 85     SSOP | 16
TSSOP | 16
TVSOP | 16
VQFN | 16    
64     250     Powered-off protection
Supports JTAG signals
Supports SPI signals
Supports input voltage beyond supply    
  10.5    
SN74CBT3257 Order now 2:1 SPDT     4     5     200     Catalog     -40 to 85     SOIC | 16
SSOP | 16
SSOP | 16
TSSOP | 16
VQFN | 16    
128       Supports JTAG signals
Supports SPI signals    
1      
SN74CBT3257C Order now 2:1 SPDT     4     3     200     Catalog     -40 to 85     SOIC | 16
SSOP | 16
SSOP | 16
TSSOP | 16
VQFN | 16    
128       Powered-off protection
Supports JTAG signals
Supports SPI signals
Undershoot protection    
  16.5    
SN74CBTLV3257 Order now 2:1 SPDT     4     5     200     Catalog     -40 to 85     SOIC | 16
SSOP | 16
TSSOP | 16
TVSOP | 16
UQFN | 16
VQFN | 16    
128       Powered-off protection
Supports JTAG signals
Supports SPI signals    
1      
TMUX1574 Order now 2:1 SPDT     4     2     2000     Catalog     -40 to 125     SOT-23-THN | 16
TSSOP | 16
UQFN | 16    
25     40     1.8-V compatible control inputs
Fail-safe logic
Integrated pulldown resistor on logic pin
Powered-off protection
Supports JTAG signals
Supports SPI signals
Supports input voltage beyond supply    
0.05     7.5