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AM29PDL640G 数据表(PDF) 45 Page - Advanced Micro Devices |
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AM29PDL640G 数据表(HTML) 45 Page - Advanced Micro Devices |
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45 / 61 page ![]() December 13, 2005 Am29PDL640G 43 D A TA SH EE T AC CHARACTERISTICS Read-Only Operations Notes: 1. Not 100% tested. 2. See Figure 10 and Table 17 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. 63 73 83 98 Unit t AVAV t RC Read Cycle Time (Note 1) Min 65 70 85 90 ns t AVQV t ACC Address to Output Delay CE#, OE# = V IL Max 65 708590 ns tELQV tCE Chip Enable to Output Delay OE# = VIL Max 65 708590 ns tPACC Page Access Time Max 25 30 45 ns tGLQV tOE Output Enable to Output Delay Max 25 30 45 ns tEHQZ tDF Chip Enable to Output High Z (Notes 1, 3) Max 25 30 45 ns tGHQZ tDF Output Enable to Output High Z (Notes 1, 3) Max 25 30 45 ns t AXQX t OH Output Hold Time From Addresses, CE# or OE#, Whichever Occurs First Min 4 5 ns tOEH Output Enable Hold Time (Note 1) Read Min 0 ns Toggle and Data# Polling Min 10 ns tOH tCE Data WE# Addresses CE#f OE# HIGH Z Valid Data HIGH Z Addresses Stable tRC tACC tOEH tRH tOE tRH 0 V RY/BY# RESET# tDF Figure 12. Read Operation Timings |
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