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Cross Bar Technology CBT(D)

Bus switches for hot plug, isolation and multiplexing

Nexperia’s CBT(D) bus switches are low delay single transistor solutions for multiplexing data buses, hot swapping boards in backplanes, memory interleaving, signal conditioning and uni-direction level shifting.

Nexperia’s CBT(D) bus switch and multiplexer options include 5 V CBT and 5 V to 3.3 V CBTD level shifting variants of bit width ranging from dual-bit to 24-bit.

CBT(D) bus switches are available in standard logic and innovative PicoGate packages. Smaller leadless MicroPak and DQFN packages are available for PCB space saving. Nexperia’s CBT(D) products are fully specified from either -40 °C to 85 °C or -40 °C to 125 °C.

Key features and benefits

  • 5 V and 3.3 V level shifting
  • Low propagation delay
  • TTL control inputs

Key applications

  • Telecomunications infrastructure
  • Memory interleaving
  • Industrial control
  • Uni-directional level shifting
  • Cell phones

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Cross Bar Technology CBT(D)
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Products

Type number Description Status Quick access
CBT3125 Quadruple FET bus switch ACT
CBT3125D Quadruple FET bus switch Production
CBT3125PW Quadruple FET bus switch Production
CBT3244A Octal bus switch with quad output enables ACT
CBT3244ABQ Octal bus switch with quad output enables Production
CBT3244AD Octal bus switch with quad output enables Production
CBT3244APW Octal bus switch with quad output enables Production
CBT3245A Octal bus switch ACT
CBT3245ABQ Octal bus switch Production
CBT3245AD Octal bus switch Production
CBT3245APW Octal bus switch Production
CBT3245A-Q100 Octal bus switch ACT
CBT3245ABQ-Q100 Octal bus switch Production
CBT3245AD-Q100 Octal bus switch Production
CBT3245APW-Q100 Octal bus switch Production
CBT3251 1-of-8 FET multiplexer/demultiplexer ACT
CBT3251D 1-of-8 FET multiplexer/demultiplexer Production
CBT3251PW 1-of-8 FET multiplexer/demultiplexer Production
CBT3253 Dual 1-of-4 FET multiplexer/demultiplexer ACT
CBT3253D Dual 1-of-4 FET multiplexer/demultiplexer Production
CBT3253PW Dual 1-of-4 FET multiplexer/demultiplexer Production
CBT3253A Dual 1-of-4 FET multiplexer/demultiplexer ACT
CBT3253AD Dual 1-of-4 FET multiplexer/demultiplexer Production
CBT3253ADS Dual 1-of-4 FET multiplexer/demultiplexer Production
CBT3253APW Dual 1-of-4 FET multiplexer/demultiplexer Production
CBT3257A Quad 1-of-2 multiplexer/demultiplexer ACT
CBT3257ABQ Quad 1-of-2 multiplexer/demultiplexer Production
CBT3257AD Quad 1-of-2 multiplexer/demultiplexer Production
CBT3257ADB Quad 1-of-2 multiplexer/demultiplexer Not for design in
CBT3257ADS Quad 1-of-2 multiplexer/demultiplexer Production
CBT3257APW Quad 1-of-2 multiplexer/demultiplexer Production
CBT3257A-Q100 Quad 1-of-2 multiplexer/demultiplexer ACT
CBT3257APW-Q100 Quad 1-of-2 multiplexer/demultiplexer Production
CBT3306 Dual bus switch ACT
CBT3306GT Dual bus switch Production
CBT3306PW Dual bus switch Production
CBT3384 10-bit bus switch with 5-bit output enables ACT
CBT3384D 10-bit bus switch with 5-bit output enables Production
CBT3384PW 10-bit bus switch with 5-bit output enables Production
CBT3861 10-bit bus switch with output enable ACT
CBT3861BQ 10-bit bus switch with output enable Production
CBT3861PW 10-bit bus switch with output enable Production
CBTD3306 Dual bus switch with level shifting ACT
CBTD3306GT Dual bus switch with level shifting Production
CBTD3306PW Dual bus switch with level shifting Production
CBTD3384 10-bit level shifting bus switch with 5-bit output enables ACT
CBTD3384D 10-bit level shifting bus switch with 5-bit output enables Production
CBTD3384PW 10-bit level shifting bus switch with 5-bit output enables Production
CBTD3861 10-bit level shifting bus switch with output enable ACT
CBTD3861BQ 10-bit level shifting bus switch with output enable Production
CBTD3861PW 10-bit level shifting bus switch with output enable Production

Documentation

File name Title Type Date
DHVQFN24_SOT815-1_mk plastic, dual in-line compatible thermal enhanced very thin quad flat package; 24 terminals; 0.5 mm pitch; 3.5 mm x 5.5 mm x 0.85 mm body Marcom graphics 2017-01-28
AN90010 Pin FMEA for CBT(D) family Application note 2019-10-28
Nexperia_Selection_guide_2020 Nexperia Selection Guide 2020 Selection guide 2020-01-31

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Datasheets (15)

File name Title Type Date
CBT3125 Quadruple FET bus switch Data sheet 2018-10-01
CBT3244A Octal bus switch with quad output enables Data sheet 2017-09-08
CBT3245A Octal bus switch Data sheet 2020-04-09
CBT3245A_Q100 Octal bus switch Data sheet 2020-04-09
CBT3251 1-of-8 FET multiplexer/demultiplexer Data sheet 2017-03-17
CBT3253 Dual 1-of-4 FET multiplexer/demultiplexer Data sheet 2018-11-22
CBT3253A Dual 1-of-4 FET multiplexer/demultiplexer Data sheet 2017-05-09
CBT3257A Quad 1-of-2 multiplexer/demultiplexer Data sheet 2019-07-01
CBT3257A_Q100 Quad 1-of-2 multiplexer/demultiplexer Data sheet 2019-11-28
CBT3306 Dual bus switch Data sheet 2019-03-06
CBT3384 10-bit bus switch with 5-bit output enables Data sheet 2019-03-06
CBT3861 10-bit bus switch with output enable Data sheet 2019-03-06
CBTD3306 Dual bus switch with level shifting Data sheet 2018-11-16
CBTD3384 10-bit level shifting bus switch with 5-bit output enables Data sheet 2019-03-06
CBTD3861 10-bit level shifting bus switch with output enable Data sheet 2019-03-06