DESCRIPTION
The SN74LS273 is an 8-Bit Parallel Register with a common Clock and common Master Reset. When the MR input is LOW, the Q outputs are LOW, independent of the other inputs. Information meeting the setup and hold time requirements of the D inputs is transferred to the Q outputs on the LOW-to-HIGH transition of the clock input. 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 Inputs VIL Input LOW Voltage 0.8 V Guaranteed Input LOW Voltage for All Inputs VIK Input Clamp Diode Voltage −0.65 −1.5 V VOH Output HIGH Voltage 2.7 3.5 V VOL Output LOW Voltage 0.25 0.4 V 0.35 0.5 V IIH Input HIGH Current 20 μA 0.1 mA IIL Input LOW Current −0.4 mA IOS Short Circuit Current (Note 2) − 20 −100 mA ICC Power Supply Current 27 mA 2. Not more than one output should be shorted at a time, nor for more than 1 second. VCC = MIN, IIN = − 18 mA V...
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