SN74CBT3244 Octal FET Bus Switch |

SN74CBT3244 (ACTIVE) Octal FET Bus Switch

Octal FET Bus Switch - SN74CBT3244


The SN74CBT3244 device provides eight bits of high-speed TTL-compatible bus switching. The SOIC, SSOP, TSSOP, and TVSOP packages provide a standard ’244 device pinout. The low ON-state resistance of the switch allows connections to be made with minimal propagation delay. The device is organized as two 4-bit low-impedance switches with separate output-enable (OE) inputs.


  • High-Bandwidth Data Path (Up to 200 MHz)
  • Control Inputs Can Be Driven by TTL or 5-V/3.3-V
    CMOS Outputs
  • Low and Flat ON-State Resistance (ron)
    Characteristics Over Operating Range
    (ron= 5 Ω Typical)
  • Bidirectional Data Flow With Near-Zero
    Propagation Delay
  • Low Input/Output Capacitance Minimizes Loading
    and Signal Distortion
    (Cio(OFF) = 6 pF Typical)
  • Low Power Consumption (ICC = 50 µA Maximum)
  • VCC Operating Range From 4.5 V to 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)
  • Standard ’244-Type Pinout


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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 Supply range (Max) Ron (Max) (Ohms) Input/output continuous current (Max) (mA) Supply current (Max) (uA) OFF-state leakage current (Max) (µA) ON-state leakage current (Max) (µA) COFF (Typ) (pF) ESD CDM (kV) ESD HBM (kV) VIL (Max) (V) VIH (Min) (V)
SN74CBT3244 Order now 1:1 SPST     8     5     200     Single     4.5     5.5     Catalog     -40 to 85     SOIC | 20
SSOP | 20
SSOP | 20
TSSOP | 20
TVSOP | 20
VQFN | 20    
5.5     15     128     3     5     5     6     0.5     1.5     0.8     2