SN74CBT3257 is no longer in production
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SN74CBT3257C ACTIVE 5-V, 2:1 (SPDT), 4-channel FET bus switch with –2-V undershoot protection Upgraded powered-off protection and undershoot protection support

Product details

Configuration 2:1 SPDT Number of channels 4 Power supply voltage - single (V) 5 Protocols Analog Ron (typ) (Ω) 5 ON-state leakage current (max) (µA) 1 Bandwidth (MHz) 200 Operating temperature range (°C) -40 to 85 Input/output continuous current (max) (mA) 128 Rating Catalog Drain supply voltage (max) (V) 5.5 Supply voltage (max) (V) 5.5
Configuration 2:1 SPDT Number of channels 4 Power supply voltage - single (V) 5 Protocols Analog Ron (typ) (Ω) 5 ON-state leakage current (max) (µA) 1 Bandwidth (MHz) 200 Operating temperature range (°C) -40 to 85 Input/output continuous current (max) (mA) 128 Rating Catalog Drain supply voltage (max) (V) 5.5 Supply voltage (max) (V) 5.5
SOIC (D) 16 59.4 mm² 9.9 x 6 SSOP (DB) 16 48.36 mm² 6.2 x 7.8 SSOP (DBQ) 16 29.4 mm² 4.9 x 6 TSSOP (PW) 16 32 mm² 5 x 6.4
  • 5- Switch Connection Between Two Ports
  • TTL-Compatible Input Levels

  • 5- Switch Connection Between Two Ports
  • TTL-Compatible Input Levels

The SN74CBT3257 is a 4-bit 1-of-2 high-speed TTL-compatible FET multiplexer/demultiplexer. The low on-state resistance of the switch allows connections to be made with minimal propagation delay.

Output-enable (OE)\ and select-control (S) inputs select the appropriate B1 and B2 outputs for the A-input data.

The SN74CBT3257 is a 4-bit 1-of-2 high-speed TTL-compatible FET multiplexer/demultiplexer. The low on-state resistance of the switch allows connections to be made with minimal propagation delay.

Output-enable (OE)\ and select-control (S) inputs select the appropriate B1 and B2 outputs for the A-input data.

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* Data sheet SN74CBT3257 datasheet (Rev. M) 15 Jan 2004

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