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ML610Q421 датащи(PDF) 22 Page - LAPIS Semiconductor Co., Ltd. |
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ML610Q421 датащи(HTML) 22 Page - LAPIS Semiconductor Co., Ltd. |
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22 / 37 page ![]() FEDL610Q421-03 ML610Q421/ML610Q422 CLOCK GENERATION CIRCUIT OPERATING CONDITIONS (VSS = 0V) Parameter Symbol Condition Rating Unit Min. Typ. Max. Low-speed crystal oscillation frequency fXTL 32.768k Hz Recommended equivalent series resistance value of low-speed crystal oscillation RL 40k Ω Low-speed crystal oscillation external capacitor *1 CDL/CGL CL=6pF of crystal oscillation *2 0 pF CL=9pF of crystal oscillation 6 CL=12pF of crystal oscillation 12 High-speed crystal/ceramic oscillation frequency fXTH 4.0M / 4.096M Hz High-speed crystal oscillation external capacitor CDH 24 pF CGH 24 *1: The external C DL and CGL need to be adjusted in consideration of variation of internal loading capacitance CD and CG, and other additional capacitance such as PCB layout. *2: When using a crystal oscillator C L = 6pF, there is a possibility that can not be adjusted by external CDL and CGL. OPERATING CONDITIONS OF FLASH ROM (VSS = AVSS = 0V) Parameter Symbol Condition Range Unit Operating temperature TOP At write/erase 0 to +40 °C Operating voltage VDD At write/erase *1 2.75 to 3.6 V VDDL At write/erase *1 2.5 to 2.75 VPP At write/erase *1 7.7 to 8.3 Write cycles CEP 80 cycles Data retention YDR 10 years *1: Those voltages must be supplied to V DDL pin and VPP pin when programming and eraseing Flash ROM. VPP pin has an internal pulldown resister. 22/37 |
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