Exhibit 31



Certification of CEO Pursuant to

Securities Exchange Act Rules 13a-14 and 15d-14

as Adopted Pursuant to

Section 302 of the Sarbanes-Oxley Act of 2002



I, James M. Thorburn, certify that:



1. I have reviewed this quarterly report on Form 10-Q of ZiLOG, Inc.:



2. Based on my knowledge, this quarterly report does not contain any untrue statement of a material fact or omit to state a material fact
necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this quarterly report;



3. Based on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all
material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this quarterly report;



4. The registrants other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures
(as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:



a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including
its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;



b) Evaluated the effectiveness of the registrants disclosure controls and procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and



c) Disclosed in this report any change in the registrants internal control over financial reporting that occurred during the registrants most
recent fiscal quarter that has materially affected or is reasonably likely to materially affect, the registrants internal control over financial reporting; and



5. The registrants other certifying officer and I have disclosed, based on our most recent evaluation of internal control over
financial reporting, to the registrants auditors and the audit committee of registrants board of directors (or persons performing the equivalent function):



a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial
reporting which are reasonably likely to adversely affect the registrants ability to record, process, summarize and report financial information; and



b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrants internal control
over financial reporting.



|                     |  |  |  |  |  |  |  |                                                       
|-------------------- |  |  |  |  |  |  |  | ------------------------------------------------------
|Date: March 11, 2004 |  |  |  | 
|                     |  |  |  | 
|                     |  |  |  |  |  |  |  | /s/    JAMES M. THORBURN                              
|                     |  |  |  |  |  |  |  |                                                       
|                     |  |  |  |  |  |  |  | James M. Thorburn Chairman and Chief Executive Officer







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Certification of CFO Pursuant to

Securities Exchange Act Rules 13a-14 and 15d-14

as Adopted Pursuant to

Section 302 of the Sarbanes-Oxley Act of 2002



I, Perry J. Grace, certify that:



1. I have reviewed this quarterly report on Form 10-Q of ZiLOG, Inc.;



2. Based on my knowledge, this quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements
made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this quarterly report;



3. Based on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all material respects the
financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this quarterly report;



4. The registrants other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act
Rules 13a-15(e) and 15d-15(e)) for the registrant and have:



a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated
subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;



b) Evaluated the effectiveness of the registrants disclosure controls and procedures and presented in this report our conclusions about the
effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and



c) Disclosed in this report any change in the registrants internal control over financial reporting that occurred during the registrants most
recent fiscal quarter that has materially affected or is reasonably likely to materially affect, the registrants internal control over financial reporting; and



5. The registrants other certifying officer and I have disclosed, based on our most recent evaluation of internal control over
financial reporting, to the registrants auditors and the audit committee of registrants board of directors (or persons performing the equivalent function):



a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial
reporting which are reasonably likely to adversely affect the registrants ability to record, process, summarize and report financial information; and



b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrants internal control
over financial reporting.



|                     |  |  |  |  |  |  |  |                                                          
|-------------------- |  |  |  |  |  |  |  | ---------------------------------------------------------
|Date: March 11, 2004 |  |  |  | 
|                     |  |  |  | 
|                     |  |  |  |  |  |  |  | /S/    PERRY J. GRACE                                    
|                     |  |  |  |  |  |  |  |                                                          
|                     |  |  |  |  |  |  |  | Perry J. Grace Vice President and Chief Financial Officer

.