Data output circuit of semiconductor memory apparatus

Details Data output circuit of semiconductor memory apparatus Data output circuit of semiconductor memory apparatus

2006-11-03

2009-08-25

Ho, Hoai V (Department: 2827)

Static information storage and retrieval

Read/write circuit

Data transfer circuit

C365S189050, C365S201000

Reexamination Certificate

active

07580300

ABSTRACT:
A data output circuit of a semiconductor memory apparatus includes: a control unit that outputs a first standby instruction signal, a second standby instruction signal, a first output instruction signal, and a second output instruction signal in response to an input of a standby instruction signal, an output instruction signal, a first test signal, and a second test signal; a first output driver that causes first data to be output or to enter a standby state according to whether or not the first standby instruction signal or the first output instruction signal is enabled; and a second output driver that causes second data to be output or to enter a standby state according to whether or not the second standby instruction signal or the second output instruction signal is enabled.

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