Semiconductor memory device sharing a data line sense amplifier and a write driver in order to reduce a chip size
First Claim
Patent Images
1. A semiconductor memory device, comprising:
- a first and a second bank;
a global data line configured between the first and the second banks and commonly shared by the first and the second banks, wherein the global data line is commonly used by input data and output data;
a first local data line configured in the first bank;
a second local data line configured in the second bank;
a data transmitter configured to transmit data between the global data line and the first and the second local data lines; and
a switch configured to couple the data transmitter with the first or the second local data line in response to a corresponding bank selection signal.
12 Assignments
0 Petitions
Reexamination
Accused Products
Abstract
A semiconductor memory device includes a first and a second bank, a global data line, a first and a second data line, a data transmitter, and a switch. The global data line is configured between the first and the second banks and commonly shared by the first and the second banks. The first and the second local data lines are respectively configured in the first and the second banks. The data transmitter is configured to transmit data between the global data line and the first and the second local data lines. The switch is configured to couple the data transmitter with the first or the second local data line in response to a corresponding bank selection signal.
12 Citations
7 Claims
-
1. A semiconductor memory device, comprising:
-
a first and a second bank; a global data line configured between the first and the second banks and commonly shared by the first and the second banks, wherein the global data line is commonly used by input data and output data; a first local data line configured in the first bank; a second local data line configured in the second bank; a data transmitter configured to transmit data between the global data line and the first and the second local data lines; and a switch configured to couple the data transmitter with the first or the second local data line in response to a corresponding bank selection signal. - View Dependent Claims (2, 3, 4)
-
-
5. A semiconductor memory device, comprising:
-
a plurality of banks; and a plurality of global data lines commonly shared by the plurality of banks, wherein each global data line is commonly used by input data and output data; and a plurality of data transmitters, each of which is commonly shared by two adjacent said banks to transmit data between the global data and the two adjacent banks, wherein each bank includes; a plurality of local data lines; and a plurality of switches corresponding to the local data lines configured to selectively couple corresponding data transmitters with corresponding local data lines in response to a corresponding bank selection signal. - View Dependent Claims (6, 7)
-
Specification