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MM908E621 Fiches technique(PDF) 16 Page - Freescale Semiconductor, Inc |
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MM908E621 Fiches technique(HTML) 16 Page - Freescale Semiconductor, Inc |
16 / 65 page Analog Integrated Circuit Device Data 16 Freescale Semiconductor 908E621 ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS SPI INTERFACE TIMING SPI Operating Recommended Frequency(30) fSPIOP 0.25 — 4.0 MHz State Machine Reset Low Level Duration after VDD High tRST 0.8 1.25 1.94 ms Normal Request Timeout tNORMREQ 51 80 150 ms Window Watchdog Timer(31) Watchdog Period (WDP1:0 = 00) tWD80 52 80 124 ms Watchdog Period (WDP1:0 = 01) tWD40 26 40 62 ms Watchdog Period (WDP1:0 = 10) tWD20 13 20 31 ms Watchdog Period (WDP1:0 = 11) tWD10 6.5 10 15.5 ms Notes 30. This parameter is guaranteed by process monitoring but is not production tested. 31. This parameter is guaranteed only if correct trimming was applied. Additionally See Watchdog Period Range Value (AWD Trim) on page 50 Table 4. Dynamic Electrical Characteristics (continued) All characteristics are for the analog chip only. Please refer to the 68HC908EY16 datasheet for characteristics of the microcontroller chip. Characteristics noted under conditions 9.0V ≤ VSUP ≤ 16V, -40°C ≤ TJ ≤ 125°C, unless otherwise noted. Typical values noted reflect the approximate parameter mean at TA = 25°C under nominal conditions, unless otherwise noted. Characteristic Symbol Min Typ Max Unit |
Numéro de pièce similaire - MM908E621_08 |
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Description similaire - MM908E621_08 |
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