SN74CB3T16212 is a 24-bit FET bus exchange switch, a 2.5-V/3.3-V low-voltage bus switch with 5-V tolerant level shifter.
The SN74CB3T16212 is a high-speed TTL-compatible FET bus-exchange switch designed for mixed-mode signal operation. It supports voltage translation between 5-V, 3.3-V, and 2.5-V systems while maintaining near-zero propagation delay. The device features low ON-state resistance (typical 5 Ω) and low input/output capacitance to minimize loading effects.
Key characteristics include 5-V tolerant I/Os that function whether the device is powered up or down, bidirectional data flow, and support for partial-power-down mode via an off-state current feature. It is ideal for applications such as PCI interfaces, USB interfaces, memory interleaving, and bus isolation in low-power portable equipment.
| Number of Bits | 24-bit |
|---|---|
| Supply Voltage Range | 2.3 V to 3.6 V |
| ON-State Resistance (Typ) | 5 Ω |
| Input/Output Capacitance (Typ) | 9 pF |
| Supply Current (Max) | 70 µA |
| Operating Temperature Range | -40 °C to 85 °C |
The device supports 5-V TTL, 3.3-V LVTTL, and 2.5-V CMOS switching standards.
Yes, it has 5-V tolerant I/Os that work whether the device is powered up or down.
It is ideal for level translation, PCI interface, USB interface, memory interleaving, and bus isolation.