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S75WS256NDFBAWMB Datasheet(PDF) 76 Page - SPANSION |
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S75WS256NDFBAWMB Datasheet(HTML) 76 Page - SPANSION |
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76 / 216 page  74 S75WS256Nxx Based MCPs S75WS-N-00_A0 February 17, 2005 Ad van c e Inf o rmation 12.8.6 Erase/Program Timing Notes: 1. Not 100% tested. 2. Asynchronous read mode allows Asynchronous program operation only. Synchronous read mode allows both Asynchronous and Synchronous program operation. 3. In asynchronous program operation timing, addresses are latched on the falling edge of WE#. In synchronous program operation timing, addresses are latched on the rising edge of CLK. 4. See the Erase and Programming Performance section for more information. 5. Does not include the preprogramming time. 6. The content in this document is Advance information for the S29WS064N and S29WS128N. Content in this document is Preliminary for the S29W256N. Parameter Description 54 MHz 66 MHz 80 MHz Unit JEDEC Standard tAVAV tWC Write Cycle Time (Note 1)Min 80 ns tAVWL tAS Address Setup Time (Notes 2, 3) Synchronous Min 5ns Asynchronous 0 ns tWLAX tAH Address Hold Time (Notes 2, 3) Synchronous Min 9 ns Asynchronous 20 tAVDP AVD# Low Time Min 8 ns tDVWH tDS Data Setup Time Min 45 20 ns tWHDX tDH Data Hold Time Min 0 ns tGHWL tGHWL Read Recovery Time Before Write Min 0 ns tCAS CE# Setup Time to AVD# Min 0 ns tWHEH tCH CE# Hold Time Min 0 ns tWLWH tWP Write Pulse Width Min 30 ns tWHWL tWPH Write Pulse Width High Min 20 ns tSR/W Latency Between Read and Write Operations Min 0 ns tVID VACC Rise and Fall Time Min 500 ns tVIDS VACC Setup Time (During Accelerated Programming) Min 1 µs tVCS VCC Setup Time Min 50 µs tELWL tCS CE# Setup Time to WE# Min 5 ns tAVSW AVD# Setup Time to WE# Min 5 ns tAVHW AVD# Hold Time to WE# Min 5 ns tAVSC AVD# Setup Time to CLK Min 5 ns tAVHC AVD# Hold Time to CLK Min 5 ns tCSW Clock Setup Time to WE# Min 5 ns tWEP Noise Pulse Margin on WE# Max 3 ns tSEA Sector Erase Accept Time-out Max 50 µs tESL Erase Suspend Latency Max 20 µs tPSL Program Suspend Latency Max 20 µs tASP Toggle Time During Sector Protection Typ 100 µs tPSP Toggle Time During Programming Within a Protected Sector Typ 1 µs |
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