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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ATtiny44 датащи(PDF) 223 Page - ATMEL Corporation |
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ATtiny44 датащи(HTML) 223 Page - ATMEL Corporation |
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223 / 236 page  223 8006H–AVR–10/09 ATtiny24/44/84 26. Errata The revision letters in this section refer to the revision of the corresponding ATtiny24/44/84 device. 26.1 ATtiny24 26.1.1 Rev. D – E No known errata. 26.1.2 Rev. C • Reading EEPROM when system clock frequency is below 900 kHz may not work 1. Reading EEPROM when system clock frequency is below 900 kHz may not work Reading data from the EEPROM at system clock frequency below 900 kHz may result in wrong data read. Problem Fix/Work around Avoid using the EEPROM at clock frequency below 900 kHz. 26.1.3 Rev. B • EEPROM read from application code does not work in Lock Bit Mode 3 • Reading EEPROM when system clock frequency is below 900 kHz may not work 1. EEPROM read from application code does not work in Lock Bit Mode 3 When the Memory Lock Bits LB2 and LB1 are programmed to mode 3, EEPROM read does not work from the application code. Problem Fix/Work around Do not set Lock Bit Protection Mode 3 when the application code needs to read from EEPROM. 2. Reading EEPROM when system clock frequency is below 900 kHz may not work Reading data from the EEPROM at system clock frequency below 900 kHz may result in wrong data read. Problem Fix/Work around Avoid using the EEPROM at clock frequency below 900 kHz. 26.1.4 Rev. A Not sampled. |
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