| 摘要 |
<p>A semiconductor device is provided with a first internal reference cell (4), a second internal reference cell (5), an external reference cell (6), and at least two current mirror circuits. The semiconductor device has cascode circuits (15, 16, 8), which output a reference voltage from a current flowing in the reference cell by corresponding to the current to at least two output paths, and switches (SWAR1, SWAR2, SWBR1, SWBR2, SWXR1, SWXR2), which are provided at least on each of the two output paths and select the output path for outputting the reference voltage. Therefore, the number of outputs of the reference voltage can be increased and reduced without increasing the number of reference cells. Thus, a judgment voltage obtained from such reference voltages can be easily adjusted, and reading can be performed without reducing a margin at the time of reading data from a core cell (3).</p> |
