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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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JS28F128P30T85 데이터시트(PDF) 61 Page - Numonyx B.V |
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JS28F128P30T85 데이터시트(HTML) 61 Page - Numonyx B.V |
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61 / 99 page  November 2007 Datasheet Order Number: 306666-11 61 P30 11.6 Program Protection When VPP = VIL, absolute hardware write protection is provided for all device blocks. If VPP is at or below VPPLK, programming operations halt and SR[3] is set indicating a VPP- level error. Block lock registers are not affected by the voltage level on VPP; they may still be programmed and read, even if VPP is less than VPPLK. Figure 29: Example VPP Supply Connections • Factory Programming with V PP = VPPH • Complete write/Erase Protection when V PP ≤ VPPLK VCC VPP VCC VPP • Low Voltage and Factory Programming • Low-voltage Programming only • Logic Control of Device Protection VCC VPP • Low Voltage Programming Only • Full Device Protection Unavailable VCC VPP ≤ 10K Ω V PP V CC V CC PROT # V CC V PP=VPPH V CC |
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