Apparatus and methods for triggering row hammer address sampling
First Claim
1. An apparatus comprising:
- an oscillator circuit configured to provide a clock signal; and
a filter circuit including;
a control circuit configured to receive pulses of the clock signal and provide an output signal that represents a count number by counting a number of pulses of the clock signal and control a probability of enabling the output signal based on the count number; and
a logic gate configured to pass one of the pulses of the clock signal responsive to the output signal from the control circuit being enabled and filter another of the pulsesresponsive to the output signal from the control circuit being not enabled.
3 Assignments
0 Petitions
Accused Products
Abstract
Apparatuses and methods for triggering row hammer address sampling are described. An example apparatus includes an oscillator circuit configured to provide a clock signal, and a filter circuit. The filter circuit includes a control circuit configured to receive pulses of the clock signal and provide an output signal that represents a count number by counting a number of pulses of the clock signal and control a probability of enabling the output signal based on the count number. The filter circuit further includes a logic gate configured to pass one of the pulses of the clock signal responsive to the output signal from the control circuit being enabled and filter another of the pulses responsive to the output signal from the control circuit being not enabled.
-
Citations
12 Claims
-
1. An apparatus comprising:
-
an oscillator circuit configured to provide a clock signal; and a filter circuit including; a control circuit configured to receive pulses of the clock signal and provide an output signal that represents a count number by counting a number of pulses of the clock signal and control a probability of enabling the output signal based on the count number; and a logic gate configured to pass one of the pulses of the clock signal responsive to the output signal from the control circuit being enabled and filter another of the pulses responsive to the output signal from the control circuit being not enabled. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method comprising:
-
receiving a plurality of pulses of a clock signal at a sampling timing generator circuit of a memory; adjusting a count value in response each pulse of the plurality of pulses of the clock signal; setting an output signal based on the count value, wherein a probability of setting the output signal is based on the count value; and providing a pulse of the plurality of pulses of the clock signal in response to the output signal being set. - View Dependent Claims (9, 10, 11, 12)
-
Specification