Device Overview
Designed as a 8-bit bus switch with output enable, Nexperia 74CBTLV3245PW,118 uses the TSSOP-20 package. Selection of this exact part is driven primarily by Device Function (8-bit bus switch with output enable), Channel Topology (8-pole SPST bus switch), Supply Voltage (2.3 to 3.6 V).
Selection-Critical Data
| Parameter | Confirmed Data | Why It Matters |
|---|---|---|
| Device Function | 8-bit bus switch with output enable | Defines the device function or architecture that a compatible replacement must preserve before secondary ratings are compared. |
| Channel Topology | 8-pole SPST bus switch | Defines the number or arrangement of parallel signal/control paths and therefore the resources a replacement must provide. |
| Supply Voltage | 2.3 to 3.6 V | Defines compatibility with the available board power rail and required bias range. |
| On Resistance | 7 ohm (parametric typical/class value) | Affects conduction loss and heat generation under the stated current, gate-drive and temperature conditions. |
| Bandwidth | 400 MHz (-3 dB class parametric) | Defines usable signal-path bandwidth and therefore whether the device covers the intended modulation or data spectrum. |
| Propagation Delay | 0.2 ns (switch path class parametric) | Consumes part of the digital timing budget and therefore limits the maximum practical signal or control-path speed. |
| Exact Package | TSSOP-20 | Determines PCB footprint, pinout, mechanical assembly and orderable-variant compatibility. |
Logic and Interface Selection Notes
At 8-bit bus switch with output enable, the device function defines the device function or architecture that a compatible replacement must preserve before secondary ratings are compared. The channel topology is 8-pole SPST bus switch; this defines the number or arrangement of parallel signal/control paths and therefore the resources a replacement must provide.
At 2.3 to 3.6 V, the supply voltage defines compatibility with the available board power rail and required bias range.
Exact Package is TSSOP-20. Determines PCB footprint, pinout, mechanical assembly and orderable-variant compatibility.
On Resistance is 7 ohm. Affects conduction loss and heat generation under the stated current, gate-drive and temperature conditions. Technical condition: parametric typical/class value. Bandwidth is 400 MHz. Defines usable signal-path bandwidth and therefore whether the device covers the intended modulation or data spectrum. Technical condition: -3 dB class parametric.
0.2 ns is the stated propagation delay value. Consumes part of the digital timing budget and therefore limits the maximum practical signal or control-path speed. Technical condition: switch path class parametric.
