SN74CBT3345CDW
Active5-V, 1:1 (SPST), 8-CHANNEL BUS SWITCH WITH –2-V UNDERSHOOT PROTECTION
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SN74CBT3345CDW
Active5-V, 1:1 (SPST), 8-CHANNEL BUS SWITCH WITH –2-V UNDERSHOOT PROTECTION
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Technical Specifications
Parameters and characteristics for this part
| Specification | SN74CBT3345CDW |
|---|---|
| Circuit [custom] | 8 |
| Circuit [custom] | 1:1 |
| Independent Circuits | 1 |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 20-SOIC |
| Package / Case [y] | 0.295 in |
| Package / Case [y] | 7.5 mm |
| Supplier Device Package | 20-SOIC |
| Type | Bus Switch |
| Voltage - Supply [Max] | 5.5 V |
| Voltage - Supply [Min] | 4.5 V |
| Voltage Supply Source | Single Supply |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 0.63 | |
| 10 | $ 0.56 | |||
| 25 | $ 0.53 | |||
| 100 | $ 0.44 | |||
| 250 | $ 0.41 | |||
| 500 | $ 0.36 | |||
| 1000 | $ 0.34 | |||
| Texas Instruments | TUBE | 1 | $ 0.66 | |
| 100 | $ 0.51 | |||
| 250 | $ 0.38 | |||
| 1000 | $ 0.27 | |||
Description
General part information
SN74CBT3345C Series
The SN74CBT3345C is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron), allowing for minimal propagation delay. Active Undershoot-Protection Circuitry on the A and B ports of the SN74CBT3345C provides protection for undershoot up to –2 V by sensing an undershoot event and ensuring that the switch remains in the proper OFF state.
The SN74CBT3345C is organized as an 8-bit bus switch with two output-enable (OE, OE\) inputs. When OE is high or OE\ is low, the bus switch is ON, and the A port is connected to the B port, allowing bidirectional data flow between ports. When OE is low and OE\ is high, the bus switch is OFF and the high-impedance state exists between the A and B ports.
This device is fully specified for partial-power-down applications using Ioff. The Iofffeature ensures that damaging current will not backflow through the device when it is powered down.
Documents
Technical documentation and resources
