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The SN74CBTLV3253PWR is a dual 1-of-4 multiplexer/demultiplexer built around a 2-bit FET bus switch, letting designers route two independent 4-channel buses with only 4 Ω typical on-resistance. Operating from 2.3 V to 3.6 V with 5 V tolerant control inputs, it isolates and connects mixed-voltage signal paths while preserving signal integrity at up to 200 MHz, making it a compact choice for bus switching in communications, industrial and computing equipment.
ManufacturerTexas Instruments
Package16-TSSOP (PW)
SeriesSN74CBTLV3253
Technical Specifications
| Parameter | Value / Specification |
|---|---|
| Logic Function | Dual 1-of-4 multiplexer/demultiplexer with integrated 2-bit FET bus switch |
| Channels / Elements | 2 independent 1-of-4 mux elements; 4 channels per element |
| Supply Voltage | 2.3 V to 3.6 V |
| Package / Case | 16-TSSOP (PW) |
| On-Resistance | 4 Ω typical (5 Ω max) at 3.3 V |
| Bandwidth | 200 MHz typical |
| Propagation Delay | 0.25 ns typical |
| Output Enable | Active-low OE per port for bus isolation |
| Operating Temperature | -40°C to +85°C |
| ESD Protection | 5 V tolerant control inputs; Ioff partial-power-down support |
Key Features & Applications
- Dual 1-of-4 multiplexer/demultiplexer routes two independent 4-channel buses through a low on-resistance FET switch
- 4 Ω typical on-resistance minimizes signal attenuation across the switched path
- 2.3 V to 3.6 V operation supports 3.3 V and 2.5 V bus-isolation applications
- 200 MHz bandwidth and 0.25 ns propagation delay preserve high-speed signal integrity
- Active-low output-enable pins place the switch outputs in high-impedance during isolation
- Ioff partial-power-down mode prevents backflow current when the supply is removed
- 5 V tolerant control inputs allow interfacing with mixed-voltage logic
- 16-pin TSSOP package rated for -40°C to +85°C commercial operation
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