| 摘要 |
PURPOSE: A device for monitoring an internal source is provided to decrease a chip size by monitoring an internal source without a probe pad. CONSTITUTION: A device for monitoring an internal source includes numerous internal source monitoring control parts(11 to 15), numerous address pads(21 to 25), and numerous address buffering part(31 to 35). The numerous internal source monitoring control parts(11 to 15) receives internal sources(Vint, Vcore, Vblp, Vcp, Vpp) according to a test mode control signal(test_mode) for discriminating a normal operation mode and a test mode, and controls a monitoring about the internal sources. The numerous address pads(21 to 25) are connected to each of output terminals of the numerous internal source monitoring control parts(11 to 15). The numerous address buffering part(31 to 35) are connected to each of output terminals of the numerous address pads(21 to 25), and controls an existing of an enabling under a control of the test mode control signal(test_mode), and perform a buffering of external signals transmitted from the numerous address pads(21 to 25).
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