REFERENCE VOLTAGE REGULATOR CAPABLE OF COMPENSATING VOLTAGE DROP OF REFERENCE VOLTAGE AND SEMICONDUCTOR MEMORY DEVICE HAVING THE REFERENCE VOLTAGE GENERATOR

摘要

PURPOSE: A reference voltage regulator is provided to compensate a voltage drop of the reference voltage during a short time without increasing capacity, and also a Rambus DRAM is provided to prevent an output operation speed from being slowed or a mis-operation from being generated by a voltage drop of the reference voltage CONSTITUTION: The device includes an output driver(21), a reference voltage distributor(22), a current controlling circuit(24) includes a reference voltage generator(23a) and a reference voltage compensator(23b). The reference voltage generator generates the reference voltage and supplies the reference voltage to the reference voltage distributor. The reference voltage compensator responds to the output enable signal for compensating a drop of the reference voltage and supplies current to the terminal of the reference voltage generator during a predetermined time.