SN74CB3T3257PWR
ActiveMULTIPLEXER/DEMULTIPLEXER BUS SWITCH 1-ELEMENT CMOS 8-IN 16-PIN TSSOP T/R
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SN74CB3T3257PWR
ActiveMULTIPLEXER/DEMULTIPLEXER BUS SWITCH 1-ELEMENT CMOS 8-IN 16-PIN TSSOP T/R
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Technical Specifications
Parameters and characteristics for this part
| Specification | SN74CB3T3257PWR |
|---|---|
| Circuit [custom] | 4 |
| Circuit [custom] | 2:1 |
| Independent Circuits | 1 |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 16-TSSOP |
| Package / Case [x] | 0.173 in |
| Package / Case [y] | 4.4 mm |
| Supplier Device Package | 16-TSSOP |
| Type | Multiplexer/Demultiplexer |
| Voltage - Supply [Max] | 3.6 V |
| Voltage - Supply [Min] | 2.3 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 | Cut Tape (CT) | 1 | $ 1.70 | |
| 10 | $ 1.52 | |||
| 25 | $ 1.44 | |||
| 100 | $ 1.22 | |||
| 250 | $ 1.15 | |||
| 500 | $ 1.01 | |||
| 1000 | $ 0.83 | |||
| Digi-Reel® | 1 | $ 1.70 | ||
| 10 | $ 1.52 | |||
| 25 | $ 1.44 | |||
| 100 | $ 1.22 | |||
| 250 | $ 1.15 | |||
| 500 | $ 1.01 | |||
| 1000 | $ 0.83 | |||
| Tape & Reel (TR) | 2000 | $ 0.71 | ||
| Texas Instruments | LARGE T&R | 1 | $ 1.27 | |
| 100 | $ 1.05 | |||
| 250 | $ 0.76 | |||
| 1000 | $ 0.57 | |||
Description
General part information
SN74CB3T3257 Series
The SN74CB3T3257 is a high-speed TTL-compatible FET multiplexer/demultiplexer with low ON-state resistance (ron), allowing for minimal propagation delay. The device fully supports mixed-mode signal operation on all data I/O ports by providing voltage translation that tracks VCC. The SN74CB3T3257 supports systems using 5-V TTL, 3.3-V LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels (see Figure 1).
The SN74CB3T3257 is a 4-bit 1-of-2 multiplexer/demultiplexer with a single output-enable (OE)\ input. The select (S) input controls the data path of the multiplexer/demultiplexer. When OE\ is low, the multiplexer/demultiplexer is enabled, and the A port is connected to the B port, allowing bidirectional data flow between ports. When OE\ is high, the multiplexer/demultiplexer is disabled, and a 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. The device has isolation during power off.
Documents
Technical documentation and resources
