SN74CBTLV3245A 3.3V 8-Channel 1:1 Bus Switch | TI.com

SN74CBTLV3245A (ACTIVE) 3.3V 8-Channel 1:1 Bus Switch

3.3V 8-Channel 1:1 Bus Switch - SN74CBTLV3245A
Datasheet
 

Description

The SN74CBTLV3245A provides eight bits of high-speed bus switching in a standard '245 device pinout. The low on-state resistance of the switch allows connections to be made with minimal propagation delay.

The device is organized as one 8-bit switch. When output enable (OE) is low, the 8-bit bus switch is on, and port A is connected to port B. When OE is high, the switch is open, and the high-impedance state exists between the two ports.

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.

Features

  • Standard '245-Type Pinout
  • 5- Switch Connection Between Two Ports
  • Rail-to-Rail Switching on Data I/O Ports
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)

Parametrics

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Part number Order Configuration Number of channels (#) Ron (Typ) (Ohms) Bandwidth (MHz) Power supply type Vdd (Min) (V) Vdd (Max) (V) Rating Operating temperature range (C) Package Group Input/output continuous current (Max) (mA) Supply current (Typ) (uA) Features OFF-state leakage current (Max) (µA) ON-state leakage current (Max) (µA) CON (Typ) (pF)
SN74CBTLV3245A Order now 1:1 SPST     8     5     200     Single     2.3     3.6     Catalog     -40 to 85     SOIC | 20
SSOP | 20
TSSOP | 20
TVSOP | 20
VQFN | 20    
128       Powered-off protection     60     60      
SN74CB3Q3245 Order now 1:1 SPST     8     4     500     Single     2.3     3.6     Catalog     -40 to 85     SSOP | 20
TSSOP | 20
TVSOP | 20
VQFN | 20    
64     1     Powered-off protection
Supports input voltage beyond supply    
1       9    
SN74CBT3245A Order now 1:1 SPST     8     5     200     Single     4     5.5     Catalog     -40 to 85     SOIC | 20
SSOP | 20
SSOP | 20
TSSOP | 20
TVSOP | 20
VQFN | 20    
128         5     5      
SN74CBT3245C Samples not available 1:1 SPST     8     3     200     Single     4     5.5     Catalog     -40 to 85     SOIC | 20
SSOP | 20
SSOP | 20
TSSOP | 20
TVSOP | 20
VQFN | 20    
128       Powered-off protection
Undershoot protection    
10       14