**EXHIBIT      31.1**

**PERICOM      SEMICONDUCTOR CORPORATION**

**CERTIFICATION      PURSUANT TO SECTION 302 OF THE**

**SARBANES-OXLEY      ACT OF 2002**

|   | 1. | I                have reviewed this annual report on Form 10-K of Pericom Semiconductor                Corporation; |
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|   | 2. | Based                on my knowledge, this 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                report; |
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|   | 3. | Based                on my knowledge, the financial statements, and other financial information                included in this 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                report; |
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|   | 4. | The                registrant’s other certifying officers 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)), and internal                control over financial reporting (as defined in Exchange Act Rules                13a-15(f) and 15d-15(f)) for the registrant and                have: |
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|   | 5. | The                registrant’s other certifying officer(s) 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 the registrant’s                board of directors (or persons performing the equivalent                functions): |
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|   | 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 data;                and |
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|   | 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. |
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| /s/                Alex C. Hui                   |
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| Alex                C. Hui                       |
| Chief                Executive Officer           |
| Pericom                Semiconductor Corporation |

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