×

CBT3244AD

Octal bus switch with quad output enables

The CBT3244A provides eight bits of high-speed TTL-compatible bus switching in a standard '244 device pinout. The low ON-state resistance of the switch allows connections to be made with minimal propagation delay. The CBT3244A device is organized as two 4-bit low-impedance switches with separate output-enable (OE) inputs. When OE is LOW, the switch is on and data can flow from port A to port B, or vice versa. When OE is HIGH, the switch is open and high-impedance state exists between the two ports. The CBT3244A is characterized for operation from -40 °C to +85 °C.

This product has been discontinued, click here for discontinuation information and replacement parts.

Features and benefits

  • Standard '244-type pinout

  • 5 Ω switch connection between two ports

  • TTL compatible control input levels

  • Package options include:

    • plastic small outline (SO20)

    • shrink small outline (SSOP20)

    • shrink small outline, QSOP (SSOP20)

    • thin shrink small outline (TSSOP20)

    • depopulated heatsink very thin quad flat package, no leads (DHVQFN20)

  • Latch-up protection exceeds 500 mA per JESD78

  • ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per JESD22-A115 and 1000 V CDM per JESD22-C101

Applications

Parametrics

Type number Product status VCC (V) VPASS (V) Logic switching levels RON (Ω) f(-3dB) (MHz) Nr of bits tpd (ns) Power dissipation considerations Tamb (°C) Rth(j-a) (K/W) Ψth(j-top) (K/W) Rth(j-c) (K/W)
CBT3244AD End of life 4.5 - 5.5 3.9 TTL 7 300 8 0.25 very low -40~85 85 27.2 61

PCB Symbol, Footprint and 3D Model

Model Name Description

Package

All type numbers in the table below are discontinued. See the table Discontinuation information for more information.

Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
CBT3244AD CBT3244AD,112
(935275999112)
Obsolete no package information
CBT3244AD,118
(935275999118)
Obsolete

Environmental information

All type numbers in the table below are discontinued. See the table Discontinuation information for more information.

Type number Orderable part number Chemical content RoHS RHF-indicator
CBT3244AD CBT3244AD,112 CBT3244AD rohs rhf rhf
CBT3244AD CBT3244AD,118 CBT3244AD rohs rhf rhf
Quality and reliability disclaimer

Series

Documentation (2)

File name Title Type Date
CBT3244A Octal bus switch with quad output enables Data sheet 2017-09-08
AN90010 Pin FMEA for CBT(D) family Application note 2019-10-28

Support

If you are in need of design/technical support, let us know and fill in the answer form we'll get back to you shortly.

Models

No documents available

PCB Symbol, Footprint and 3D Model

Model Name Description

How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.