ADDRESS CONTROL CIRCUIT FOR SEMICONDUCTOR MEMORY DEVICE

摘要

PURPOSE: An address control circuit for semiconductor memory device is provided to decrease a pad size when manufacturing a memory chip to decrease a basic cost and prevent the decrease of the productivity by latching an address to a cell of an EEPROM and decreasing a size of an address pad and the number of a pin of a package. CONSTITUTION: An inputted address is provided to a comparator(19) through a shift register(17) and three signal lines(18) when an address of a memory chip with a clock signal(CK) and a chip selecting signal(CS) are inputted to a serial input terminal through a serial port. Each address latched in flash memory cells(M1-M3) of an address latch unit(20) on a printed circuit board is provided to the comparator(19). The comparator(19) compares the address inputted through the shift register(17) with the address inputted through the address latch unit(20).