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AM29DL640H Datasheet(PDF) 38 Page - SPANSION |
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AM29DL640H Datasheet(HTML) 38 Page - SPANSION |
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38 / 54 page ![]() 36 Am29DL640H June 7, 2005 AC CHARACTERISTICS Read-Only Operations Notes: 1. Not 100% tested. 2. See Figure 12 and Table 14 for test specifications 3. Measurements performed by placing a 50 ohm termination on the data pin with a bias of V CC/2. The time from OE# high to the data bus driven to V CC/2 is taken as tDF . Parameter Description Test Setup Speed Options JEDEC Std. 55 60 70 90 Unit t AVAV t RC Read Cycle Time (Note 1) Min 55 60 70 90 ns t AVQV t ACC Address to Output Delay CE#, OE# = V IL Max 5560 7090 ns t ELQV t CE Chip Enable to Output Delay OE# = V IL Max 5560 7090 ns t GLQV t OE Output Enable to Output Delay Max 25 30 35 ns t EHQZ t DF Chip Enable to Output High Z (Notes 1, 3) Max 16 ns t GHQZ t DF Output Enable to Output High Z (Notes 1, 3) Max 16 ns t AXQX t OH Output Hold Time From Addresses, CE# or OE#, Whichever Occurs First Min 0 ns t OEH Output Enable Hold Time (Note 1) Read Min 0 ns Toggle and Data# Polling Min 5 10 ns tOH tCE Outputs WE# Addresses CE# OE# HIGH Z Output Valid HIGH Z Addresses Stable tRC tACC tOEH tRH tOE tRH 0 V RY/BY# RESET# tDF Figure 14. Read Operation Timings |
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