Semiconductor device and integrated semiconductor device

An integrated semiconductor device comprising

• a plurality of semiconductor devices, each of said semiconductor devices including:
• a semiconductor identifier holding portion configured to hold a semiconductor identifier for identifying a semiconductor device;
• and
• a control portion configured such that upon elapse of a predetermined time period following receipt of an externally input instruction to hold the semiconductor identifier, said control portion issues an instruction to the semiconductor device immediately downstream of said semiconductor device to hold a semiconductor identifier of the immediately downstream semiconductor device and that during the time period between the point in time at which said externally input instruction is received and the point in time at which said instruction is issued to said immediately downstream semiconductor device to hold the semiconductor identifier thereof, said control portion causes said semiconductor identifier holding portion to hold the externally input identifiers issued parallelly to all of said plurality of semiconductor devices.