HD74AC298 Overview
This device is a high-speed multiplexer with storage. It selects four bits of data from two sources (Ports) under the control of a mon Select input (S). The selected data is transferred to the 4-bit output register synchronous with the HIGH-to-LOW transition of the Clock input ( CP ). The 4-bit register is fully edge triggered. The Data inputs (I0 and I1) and Select input (S) must be stable only one setup time prior to the HIGH-to-LOW transition of the clock for predictable operation.
HD74AC298 Key Features
- Outputs Source/Sink 24 mA
- HD74ACT298 has TTL-patible Inputs
- I1d I0a
- I0d S CP Qa
- Qd Source 1 Data Inputs Source 0 Data Inputs Select Input Clock Pulse Input (Active Falling Edge) Outputs
- 2.1 V, VCC = 5.5 V, Ta = Worst case
- 7.0 5.0 7.5 5.5 Max
- 11.5 8.5 11.5 8.5 ns Unit MHz
- 6.0 6.5 Max
- 11.0 11.0 Unit MHz ns