Motorola 74LS298
74LS298 is a Quad 2-Port Register. It is the logical equivalent of a quad 2-input multiplexer followed by a quad 4-bit edge-triggered register. The LS298 is fabricated with the Schottky barrier process for high speed and is completely compatible with all Motorola TTL families.| Part No. | 74LS298 |
|---|---|
| Datasheet | 74LS298 Download |
| Manufacturer |  Motorola |
| Description | QUAD 2-INPUT MULTIPLEXER |
| Buy | Stock & Price |
DESCRIPTION
The LS298 is a high speed Quad 2-Port Register. It selects four bits of data from two sources (ports)under the control of a Common 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 output register is fully edge-triggered. The Data inputs (I) and Select input (S) must be stable only one setup time prior to the HIGH to LOW transition of the clock for predictable operation. TRUTH TABLE INPUTS S I I h h I0 I h X X I1 X X I h OUTPUT Q L H L H L = LOW Voltage Level H = HIGH Voltage Level X = Don’t Care I = LOW Voltage Level one setup time prior to the HIGH to LOW clock transition. h = HIGH Voltage Level one setup time prior to the HIGH to LOW clock transition. GUARANTEED OPERATING RANGES Symbol VCC TA IOH IOL Supply Voltage Operating Ambient Temperature Range Output Current — High Output Current — Low Parameter 54 74 54 74 54, 74 54 74 Min 4.5 4.75 – 55 0 Typ 5.0 5.0 25 25...
