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Z8F021ASH020SC 数据表(PDF) 239 Page - Zilog, Inc. |
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Z8F021ASH020SC 数据表(HTML) 239 Page - Zilog, Inc. |
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239 / 276 page  PS022815-0206 Electrical Characteristics Z8 Encore! XP® 4K Series Product Specification 220 Table 135. Flash Memory Electrical Characteristics and Timing Parameter VDD = 2.7 to 3.6V TA = -40°C to +105°C (unless otherwise stated) Units Notes Minimum Typical Maximum Flash Byte Read Time 100 – – ns Flash Byte Program Time 20 – 40 µs Flash Page Erase Time 10 – – ms Flash Mass Erase Time 200 – – ms Writes to Single Address Before Next Erase –– 2 Flash Row Program Time – – 8 ms Cumulative program time for single row cannot exceed limit before next erase. This parameter is only an issue when bypassing the Flash Controller. Data Retention 100 – – years 25°C Endurance 10,000 – – cycles Program / erase cycles Table 136. Watch-Dog Timer Electrical Characteristics and Timing Symbol Parameter VDD = 2.7 - 3.6V TA = -40°C to +105°C (unless otherwise stated) Units Conditions Minimum Typical Maximum FWDT WDT Oscillator Frequency 5 10 15 KHz TWDTCAL WDT Calibrated Timeout 100 ms VDD = 3.3V; TA = 30°C 100 ms VDD = 2.7V to 3.6V TA = 0°C to 70°C 100 ms VDD = 2.7V to 3.6V TA = -40°C to +105°C |
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