1. Device Description:

️· Type: 12-Bit 3:1 Multiplexer/Demultiplexer (MUX/DEMUX)
️· Function: Acts as a switch, routing signals between multiple inputs/outputs based on control signals (S). Can be configured for multiplexing (one input to one output) or demultiplexing (one input to multiple outputs).
️· Application: Primarily intended for bus switching applications within digital systems. This is common for memory interfaces, peripherals, or other situations where a single signal needs to be shared between several destinations.
️· Manufacturer: Integrated Device Technology (IDT).

2. Key Features & Benefits:

️· Fast Propagation Delay: Relatively low propagation delay for high-speed data transfer.
️· Wide Operating Voltage Range: Suitable for various power supply conditions.
️· TTL Compatible Inputs: Can interface directly with TTL-level signals.
️· Low Power Consumption: Designed for efficiency.
️· Bus Switch Functionality: Optimized for switching data between buses.

3. Electrical Characteristics (Highlights):

️· Supply Voltage (VCC): Operates with a range of voltages, but typically around 5V (specific ranges are detailed in the sheet).
️· Input Voltage Levels (Vih, Vil): Defines the voltage thresholds for logic HIGH and LOW inputs.
️· Output Voltage Levels (Voh, Vol): Defines the voltage levels for logic HIGH and LOW outputs.
️· Maximum Propagation Delay (tPLH, tPHL): Around 0.25 ns. Important for timing-critical applications.
️· Switch Multiplex Delay (tBX): Around 6.5ns.
️· Power Consumption (ICCC, ICDD): Power supply currents, including dynamic power consumption during switching.
️· Charge Injection: Measurements of unwanted charge introduced into the signal path during switching.

4. Timing Characteristics:

️· Data Propagation Delay: The time it takes for a signal to pass through the switch.
️· Switch Multiplex Delay: The delay associated with the switching action itself.
️· Switch Turn-On/Off Delays: The time it takes for the switch to enable or disable.

5. Ordering Information & Package Options:

️· Part Number: IDT74FST163214
️· Temperature Range: -40°C to +85°C
️· Package Options:
- SO56-1 (Shrink Small Outline Package)
- SO56-2 (Thin Shrink Small Outline Package)
- SO56-3 (Thin Very Small Outline Package) - These are different surface-mount package sizes.

6. Important Notes & Considerations (from the datasheet):

️· Bus Switching: The data sheet emphasizes that this part is designed for bus switching and is NOT a general-purpose multiplexer. It has specific characteristics optimized for this application.
️· Test Circuits: The data sheet includes test circuits and waveforms illustrating how to measure key performance parameters.
️· Datasheet Revisions: IDT reserves the right to change specifications without notice. Always check for the latest version of the datasheet.