Integrated circuits including memory cells
AssigneeHewlett-Packard Development Company, L.P.
InventorsScott A. Linn, James Michael Gardner, Michael W. Cumbie
Life of this patent
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Abstract
An integrated circuit to drive a plurality of fluid actuation devices includes a plurality of memory cells, a select circuit, configuration logic, and control logic. Each memory cell corresponds to a fluid actuation device. The select circuit selects fluid actuation devices and memory cells corresponding to the selected fluid actuation devices. The configuration logic enables or disables access to the plurality of memory cells. The control logic either activates the selected fluid actuation devices or accesses the memory cells corresponding to the selected fluid actuation devices based on a state of the configuration logic.
Claims22
An integrated circuit to drive a plurality of fluid actuation devices, the integrated circuit comprising:
- a plurality of memory cells, each memory cell corresponding to a fluid actuation device;
- a select circuit to select fluid actuation devices and memory cells corresponding to the selected fluid actuation devices;
- configuration logic to enable or disable access to the plurality of memory cells;
- and
- control logic to either activate the selected fluid actuation devices or access the memory cells corresponding to the selected fluid actuation devices based on a state of the configuration logic.
An integrated circuit comprising:
- an elongate substrate having a length, a thickness, and a width, the length being at least twenty times the width, wherein on the elongate substrate there is provided:
- a plurality of nozzles arranged in a column along the length of the elongate substrate,
- a plurality of memory cells arranged adjacent to the plurality of nozzles, each memory cell corresponding to a nozzle, and
- fluid actuation logic to either eject fluid from selected nozzles or access memory cells corresponding to the selected nozzles.
An integrated circuit to drive a plurality of fluid actuation devices, the integrated circuit comprising:
- a plurality of memory cells, each memory cell corresponding to a fluid actuation device;
- a single interface coupled to each of the plurality of memory cells, the single interface to connect to a single contact of a host print apparatus;
- a select circuit to select fluid actuation devices and memory cells corresponding to the selected fluid actuation devices;
- a configuration register storing data to enable or disable access to the plurality of memory cells;
- and
- control logic to either activate the selected fluid actuation devices or access the memory cells corresponding to the selected fluid actuation devices based on the data stored in the configuration register.
Dependencies are inferred from the claim text.