onsemi SN74LS298
The SN74LS298 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 ON Semiconductor TTL families.| Part No. | SN74LS298 |
|---|---|
| Datasheet | SN74LS298 Download |
| Manufacturer |  onsemi |
| 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 OUTPUT S I0 I1 Q I I X L I h X H h X I L h X h 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. 3 SN74LS298 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol VIH Parameter Input HIGH Voltage Min Typ Max Unit Test Conditions 2.0 V Guaranteed Input HIGH Voltage for All...
