MULTICHIP, BATTERY PROTECTION APPARATUS, AND BATTERY PACK

The invention provides a multichip, a battery protection apparatus, and a battery pack. Even if an external connection terminal capable of accessing an internal node of a monitoring IC from the exterior of a package is arranged, total number of the external connection terminal can be restrained. The multichip is provided with a protection IC and a monitoring IC, wherein the protection IC detects overcharge, overdischarge or overcurrent of a secondary battery and carries out protection; and the monitoring IC monitors battery states of the secondary battery. The package comprises a first side edge, and a second side edge opposite to the first side edge. An adjuster output terminal, a grounding terminal, a power supply terminal and a current detection terminal are arranged on the first side edge side. A communication terminal, a discharge control terminal, a charging control terminal and an overcurrent detection terminal are arranged on the second side edge side. The multichip also comprises a selection circuit