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TC74HC259AP/AF
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74HC259AP, TC74HC259AF
8-Bit Addressable Latch
The TC74HC259A is a high speed CMOS ADDRESSABLE LATCH fabricated with silicon gate C2MOS technology.
It achieve the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation.
The respective bits are controlled by address inputs A, B, and C. When CLEAR input is held high and enable input G is held low, the data is written into the bit selected by address inputs, the other bit hold their previous conditions.
When both CLEAR and G held high, writing of all bits is inhibited regardless of adress inputs, and their previous condition are held.