Semiconductor integrated circuit
AssigneeRenesas Technology Corp.
InventorsMasato Momii, Naoki Yada, Masaru Iwabuchi
Life of this patent
Estimating the term…
Abstract
There is provided a fuse module that holds trimming information for an internal oscillation circuit module. The fuse module includes information-writing fuse circuits to which trimming information is written depending on whether an information-writing fuse is blown; a reference fuse circuit for determining whether the information-writing fuse has been blown; and a current-to-voltage converter section. Since the reference fuse circuit and the current-to-voltage converter section are shared by the information-writing fuse circuits, the circuit area of the fuse module is greatly reduced.
Claims6
A semiconductor integrated circuit including a control-information holding module that holds arbitrary bits of control information, wherein
- the control-information holding module includes:
- a control-information writing section that arbitrarily outputs the control information written for each bit in response to a first control signal;
- a reference-information output section that outputs reference information in response to a second control signal;
- a control-information output section that compares the control information for each bit output from the control-information writing section to the reference information output from the reference-information output section to determine for each bit whether the control information is at a low level or a high level, and outputs the comparison result;
- and
- a storage section that stores the control information output from the control-information output section.
Dependencies are inferred from the claim text.