SN74CB3T16212ZQLR

The SN74CB3T16212ZQLR from Texas Instruments is a high-speed, TTL-compatible FET bus exchange switch. It belongs to the Widebus family and offers low ON-state resistance (5 Ω typical) and near-zero propagation delay.

This 24-bit switch supports mixed-mode signal operation on all data I/O ports, providing voltage translation that tracks VCC. It is designed for systems using 5-V TTL, 3.3-V LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels. The device features 5-V tolerant I/Os, whether the device is powered up or down.

Key electrical characteristics include an operating voltage range of 2.3 V to 3.6 V, low power consumption (70 μA max), and low input/output capacitance (9 pF typical). Data I/Os support signaling levels from 0 V to 5 V. Control inputs can be driven by TTL or 5-V/3.3-V CMOS outputs. The switch also supports partial power-down mode operation via the Ioff feature.

Packaged in a 56-BGA Microstar Junior (7x4.5) or 56-VFBGA, the SN74CB3T16212ZQLR is suitable for surface mount applications. It operates within a temperature range of -40°C to 85°C. The device offers robust ESD performance, tested per JESD 22 standards, including 2000-V HBM and 1000-V CDM.