Voltage supplier of semiconductor memory device
First Claim
1. A voltage supplier of a semiconductor memory device, comprising:
- a clock transferring block for receiving and transferring an external clock;
a control signal generator for generating a control signal;
a charge pumping unit for generating an internal voltage required for an internal operation by pumping charges in response to a clock signal; and
a clock oscillation unit for generating the clock signal or outputting the external clock as the clock signal according to the control signal,wherein the clock transferring block includes;
a frequency divider for dividing the external clock by a predetermined period;
a clock transferring unit for transferring the external clock in responses to an operation signal; and
a clock signal output unit for outputting one of the output signal of the frequency divider and the output signal of the clock transferring unit into the charge pumping unit in response to the control signal.
0 Assignments
0 Petitions
Accused Products
Abstract
The present invention provides voltage supplier for supplying an internal voltage with optimized drivability required for internal operation. The voltage supplier of a semiconductor memory device includes: an internal voltage detection means for detecting a voltage level of an internal voltage; a clock oscillation means for outputting a charge pumping clock signal; an internal voltage control means for controlling the clock oscillation means to be performed selectively in accordance with a data access mode or a non-data access mode; and a charge pumping means for outputting the internal voltage required for internal operation by pumping charges in response to the charge pumping clock signal.
-
Citations
13 Claims
-
1. A voltage supplier of a semiconductor memory device, comprising:
-
a clock transferring block for receiving and transferring an external clock; a control signal generator for generating a control signal; a charge pumping unit for generating an internal voltage required for an internal operation by pumping charges in response to a clock signal; and a clock oscillation unit for generating the clock signal or outputting the external clock as the clock signal according to the control signal, wherein the clock transferring block includes; a frequency divider for dividing the external clock by a predetermined period; a clock transferring unit for transferring the external clock in responses to an operation signal; and a clock signal output unit for outputting one of the output signal of the frequency divider and the output signal of the clock transferring unit into the charge pumping unit in response to the control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
Specification