The SCDS159B is a level translator from Texas Instruments that supports mixed-mode signal operation and has a working voltage range of 2.3V to 3.6V. The data I/O supports 0 to 5V signal levels.
The Texas Instruments SN74CB3T3384 is a high-speed TTL-compatible Field-Effect Transistor (FET) bus switch designed with low ON-state resistance to minimize propagation delay. It fully supports mixed-mode signal operation on all data I/O ports by providing voltage translation that tracks the supply voltage (V CC). The device allows for minimal loading due to its low input/output capacitance and is ideal for applications requiring level shifting between 5-V, 3.3-V, and 2.5-V logic standards.
| Supply Voltage Range (V CC) | 2.3 V to 3.6 V |
|---|---|
| Operating Temperature Range | -40°C to 85 °C |
| ON-state Resistance (Typical) | 5 Ω |
| Input/Output Capacitance (Typical) | 5 pF |
| Max Power Consumption (I CC) | 40 µA |
The device supports data I/Os for signaling levels from 0 to 5-V, including specific examples like 0.8-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, and 5-V.
The output high voltage level tracks the supply voltage (V CC) when the input high voltage is between V CC - 1 V and 5.5 V.
The Ioff feature ensures that damaging current will not backflow through the device when it is powered down, providing isolation.