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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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PSD4235G2V-10UI датащи(PDF) 91 Page - STMicroelectronics |
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PSD4235G2V-10UI датащи(HTML) 91 Page - STMicroelectronics |
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91 / 100 page  91/100 PSD4256G6V This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. Table 67. WRITE Timing Note: 1. Any input used to select an internal PSD function. 2. In multiplexed mode, latched address generated from ADIO delay to address output on any port. 3. WR has the same timing as E, LDS, UDS, WRL, and WRH signals. 4. Assuming data is stable before active WRITE signal. 5. Assuming WRITE is active before data becomes valid. 6. tWHAX2 is the address hold time for DPLD inputs that are used to generate Sector Select signals for internal PSD memory. 7. tWHAX is 11 ns when writing to the Output Macrocell Registers. Symbol Parameter Conditions -10 Unit Min Max tLVLX ALE or AS Pulse Width 22 tAVLX Address Setup Time (Note 1) 7ns tLXAX Address Hold Time (Note 1) 8ns tAVWL Address Valid to Leading Edge of WR (Notes 1,3) 15 ns tSLWL CS Valid to Leading Edge of WR (Note 3) 15 ns tDVWH WR Data Setup Time (Note 3) 40 ns tWHDX WR Data Hold Time (Note 3,7) 5ns tWLWH WR Pulse Width (Note 3) 40 ns tWHAX1 Trailing Edge of WR to Address Invalid (Note 3) 8ns tWHAX2 Trailing Edge of WR to DPLD Address Invalid (Note 3,6) 0ns tWHPV Trailing Edge of WR to Port Output Valid Using I/O Port Data Register (Note 3) 45 ns tDVMV Data Valid to Port Output Valid Using Macrocell Register Preset/Clear (Notes 3,5) 65 ns tAVPV Address Input Valid to Address Output Delay (Note 2) 35 ns tWLMV WR Valid to Port Output Valid Using Macrocell Register Preset/Clear (Notes 3,4) 65 ns |
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