SEMICONDUCTOR MEMORY DEVICE FOR CONDUCTING MONITORING OPERATION TO VERIFY READ AND WRITE OPERATIONS

摘要

A semiconductor memory device includes, in part, a first data I/O block and a second data I/O block. During a write operation, the first data I/O block transmits input data supplied through a first pad to a first global I/O line, and further generates a write internal signal. The second data I/O block transmits the write internal signal to a second pad in response to a monitor enable signal. During a read operation, the first data I/O block supplies data from the first global I/O line to a first pad, and further generates a read internal signal. The second data I/O block transmits the read internal signal to the second pad in response to a monitor enable signal.

主权项

1. A semiconductor memory device comprising:
a first data input block configured to:
buffer a first input data supplied through a first pad to generate a first internal input data;load the first internal input data onto a first global I/O line during a first write operation; andgenerate a write internal signal during the first write operation; a second data input block configured to:
buffer a second input data supplied through a second pad to generate a second internal input data;execute a second write operation to load the second internal input data on a second global I/O line; and a data I/O block configured to:
transmit the write internal signal to a third pad in response to a monitor enable signal; andexecute a third write operation to load the second internal input data onto a third global I/O line.