| 摘要 |
A semiconductor memory apparatus includes a period control signal generation unit configured to generate a period control signal which is activated after a first time, in response to a programming enable signal, a first write control code generation unit configured to generate first write control codes which are cyclically updated for a second time, in response to the programming enable signal, and update the first write control codes in response to the period control signal, a second write control code generation unit configured to generate a second write control code in response to the programming enable signal, and a data write unit configured to output a first programming current pulse which has a magnitude corresponding to a code combination of the updated first write control codes or a second programming current pulse which has a magnitude corresponding to the second write control code.
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