M051 DN/DE
6.9
Watchdog Timer (WDT)·············································································································46
6.9.1 Overview·······································································································································46
6.9.2 Features········································································································································46
6.10 Window Watchdog Timer (WWDT) ··························································································47
6.10.1 Overview·····································································································································47
6.10.2 Features······································································································································47
6.11 UART Controller (UART) ···········································································································48
6.11.1 Overview·····································································································································48
6.11.2 Features······································································································································48
6.12 I2C Serial Interface Controller (I2C) ··························································································49
6.12.1 Overview·····································································································································49
6.12.2 Features······································································································································49
6.13 Serial Peripheral Interface (SPI)·······························································································50
6.13.1 Overview·····································································································································50
6.13.2 Features······································································································································50
6.14 Analog-to-Digital Converter (ADC)···························································································51
6.14.1 Overview·····································································································································51
6.14.2 Features······································································································································51
6.15 Analog Comparator (ACMP) ·····································································································52
6.15.1 Overview·····································································································································52
6.15.2 Features······································································································································52
6.16 Hardware Divider (HDIV) (M05xxDN/DE Only) ······································································53
6.16.1 Overview·····································································································································53
6.16.2 Features······································································································································53
7 APPLICATION CIRCUIT ····················································································································· 54
8 M05XXDN ELECTRICAL CHARACTERISTICS··············································································· 55
8.1
8.2
8.3
Absolute Maximum Ratings·······································································································55
DC Electrical Characteristics·····································································································56
AC Electrical Characteristics·····································································································60
8.3.1 External Input Clock····················································································································60
8.3.2 External 4~24 MHz High Speed Crystal (HXT) ······································································60
8.3.3 Typical Crystal Application Circuits ··························································································61
8.3.4 22.1184 MHz Internal High Speed RC Oscillator (HIRC) ·····················································61
8.3.5 10 kHz Internal Low Speed RC Oscillator (LIRC) ··································································61
8.4
Analog Characteristics ···············································································································62
8.4.1 12-bit SAR ADC···························································································································62
8.4.2 LDO & Power Management·······································································································64
8.4.3 Low Voltage Reset······················································································································64
8.4.4 Brown-out Detector·····················································································································64
8.4.5 Power-on Reset···························································································································65
8.4.6 Temperature Sensor···················································································································66
8.4.7 Comparator ··································································································································66
8.5
Flash DC Electrical Characteristics··························································································67
8.6
SPI Dynamic Characteristics·····································································································67
8.6.1 Dynamic Characteristics of Data Input and Output Pin·························································67
Oct. 05, 2015
Page 3 of 86
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