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AT52SC1283J Datasheet(PDF) 47 Page - ATMEL Corporation |
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AT52SC1283J Datasheet(HTML) 47 Page - ATMEL Corporation |
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47 / 52 page ![]() 47 3530B–STKD–2/4/05 AT52SC1283J/1284J [Preliminary] 50.4 Page Write Cycle (Address Controlled, ZZ = V IH) Notes: 1. A write occurs during the overlap (t WP) of low PCS1 and PWE. A write begins when PCS1 goes low and PWE goes low with asserting PUB or PLB for single byte operation or simultaneously asserting PUB and PLB for double byte operation. A write ends at the earliest transition when PCS1 goes high and PWE goes high. The t WP is measured from the beginning of write to the end of write. 2. tCW is measured from the PCS1 going low to end of write. 3. t AS is measured from the address valid to the beginning of write. 4. t WR is measured from the end of write to the address change. tWR applied in case a write ends as PCS1 or PWE going high. 5. Do not access device with cycle timing shorter than tRC (tWC) for continuous periods > 10 µs. High-Z Data Undefined Data Valid t WHZ High-Z Data Valid Data Valid Data Valid Data Valid Data Valid Data Valid Data Valid A4~ A20 PCS1 PUB, PLB WE Data In Data Out A0~ A3 t OW t DH t DW t DH t DW t DH t DW t DH t DW t DH t DW t DH t DW t DH t DW t DH t DW t WC t PC t PC t PC t PC t PC t PC t PC t MRC t AS (3) |
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