SN74CB3Q3244PWR

The SN74CB3Q3244PWR from Texas Instruments is a high-bandwidth FET bus switch designed for demanding applications. It offers a data path bandwidth of up to 500 MHz and features low ON-state resistance of typically 4 Ohms, ensuring minimal signal distortion.

This bus switch supports rail-to-rail switching on data I/O ports and features 5-V tolerant I/Os, allowing operation whether the device is powered up or down. The device operates over a supply voltage range of 2.3 V to 3.6 V and supports 0- to 5-V signaling levels. Its low input/output capacitance of 3.5 pF typical minimizes loading on the data bus.

Designed for both digital and analog applications, the SN74CB3Q3244PWR includes features like bidirectional data flow with near-zero propagation delay and undershoot clamp diodes on data and control inputs. It also supports partial-power-down mode operation via the Ioff pin. The device is housed in a 20-TSSOP package suitable for surface mounting.

Key electrical characteristics include a fast switching frequency of 20 MHz maximum and low power consumption with a typical quiescent current of 0.7 mA. The device exhibits excellent ESD protection, tested up to 2000 V (HBM) and 1000 V (CDM), and latch-up performance exceeding 100 mA per JESD 78 Class II.