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RD38F203000YBQ0 数据表(PDF) 38 Page - Numonyx B.V |
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RD38F203000YBQ0 数据表(HTML) 38 Page - Numonyx B.V |
38 / 46 page 32WQ and 64WQ Family with Asynchronous RAM Datasheet November 2007 38 Order Number: 251407-13 32WQ and 64WQ Family with Asynchronous RAM Appendix A Write State Machine Refer to the Numonyx Wireless Flash Memory (W18) Datasheet (order number 290701) and Numonyx Wireless Flash Memory (W30) Datasheet (order number 290702) for the WSM details. Appendix B Common Flash Interface Refer to the Numonyx Wireless Flash Memory (W18) Datasheet (order number 290701) and Numonyx™ Wireless Flash Memory (W30) Datasheet (order number 290702) for the CFI details. Appendix C Flash Flowcharts Refer to the Numonyx™ Wireless Flash Memory (W18) Datasheet (order number 290701) and Numonyx™ Wireless Flash Memory (W30) Datasheet (order number 290702) for the flash flowchart details. Appendix D Additional Information : Table 20: PSRAM Special Write Constraints Description Min Max Unit Notes Need either R-WE# high or P-CS# high for at least tWC time, for every 4us window during write operations. N/A N/A – R-OE# high to R-WE# low in active mode (P-CS# low) 0 10,000 ns R-WE# high to R-OE# low in active mode (P-CS# low) 10 10,000 ns Address Skew time (unstable address with P-CS# low) – 10 ns 1 Note: 1. Address skew time (tSKEW) indicates the following three types of time depending on the condition. a. When switching P-CS# from high to low, tSKEW is the time from the P-CS# low input point until the next address is determined. b. When switching P-CS# from low to high, tSKEW is the time from the address change start point to the P-CS# high input point. c. When P-CS# is fixed to low, tSKEW is the time from the address start point until the next address is determined. Since specs are defined for tSKEW only when P-CS# is active, tSKEW is not subject to limitations when P-CS# is switched from high to low following address determination, or when the address is changed after P-CS# is switched from low to high. Order Number Document 290701 Numonyx™ Wireless Flash Memory (W18) Datasheet 290702 Numonyx™ Wireless Flash Memory (W30) Datasheet 251216 64-Mbit 1.8 Volt Numonyx™ Wireless Flash Memory SCSP Family Application Note Note: Contact your local Numonyx or distribution sales office or visit the Numonyx website at http://www.numonyx.com for the most current information on Numonyx Flash memory products, software, and tools. |
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