Method and circuit for shortcircuiting data transfer lines and semiconductor memory device having the circuit
First Claim
1. A method of controlling data transmission lines of a semiconductor memory device which has a first pair of data transmission lines to which a sense amplifier and memory cells are connected, and a second pair of data transmission lines to which a read circuit and a write circuit are connected at an end of the second pair of the data transmission lines, which is connected to the first pair of data transmission lines via a column gate, said method comprising:
- a) shortcircuiting the second pair of data transmission lines for a first period when a read operation is carried out; and
b) shortcircuiting the second pair of data transmission lines for a second period when a write operation is carried out, said second period being shorter than the first period.
4 Assignments
0 Petitions
Accused Products
Abstract
There is provided a method of controlling data transmission lines of a semiconductor memory device which has a first pair of data transmission lines to which a sense amplifier and memory cells are connected, and a second pair of data transmission lines to which a read circuit and a write circuit are connected at an end of the second pair of the data transmission lines, which is connected to the first pair of data transmission lines via a column gate. The method includes a) shortcircuiting the second pair of data transmission lines for a first period when a read operation is carried out, and b) shortcircuiting the second pair of data transmission lines for a second period when a write operation is carried out, the second period being shorter than the first period.
-
Citations
22 Claims
-
1. A method of controlling data transmission lines of a semiconductor memory device which has a first pair of data transmission lines to which a sense amplifier and memory cells are connected, and a second pair of data transmission lines to which a read circuit and a write circuit are connected at an end of the second pair of the data transmission lines, which is connected to the first pair of data transmission lines via a column gate, said method comprising:
-
a) shortcircuiting the second pair of data transmission lines for a first period when a read operation is carried out; and b) shortcircuiting the second pair of data transmission lines for a second period when a write operation is carried out, said second period being shorter than the first period.
-
-
2. A semiconductor device comprising:
-
memory cells; a sense amplifier; a first pair of data transmission lines to which the sense amplifier and memory cells are connected; a second pair of data transmission lines to which a read circuit and a write circuit are connected at an end of the second pair of the data transmission lines, which is connected to the first pair of data transmission lines via a column gate; a shortcircuiting element which can shortcircuit the second pair of data transmission lines; and a first control circuit which controls the shortcircuiting element so that the second pair of data transmission lines is shortcircuited for a first period when a read operation is carried out, and the second pair of data transmission lines is shortcircuited for a second period when a write operation is carried out, said second period being shorter than the first period. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
-
Specification