Part Name
         Description
ST10F272B

 16-bit MCU with 256 Kbyte Flash memory and 12/20 Kbyte RAM ( 181 Page)


STMICROELECTRONICS
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ST10F272B/ST10F272E
Contents
5/181
21.2
Power down mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
21.2.1
Protected power down mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
21.2.2
Interruptible power down mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
21.3
Stand-by mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
21.3.1
Entering stand-by mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
21.3.2
Exiting stand-by mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
21.3.3
Real time clock and stand-by mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
21.3.4
Power reduction modes summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
22
Programmable output clock divider . . . . . . . . . . . . . . . . . . . . . . . . . . 112
23
Register set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
23.1
Special function registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
23.2
X-registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
23.3
Flash registers ordered by name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
23.4
Identification registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
24
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
24.1
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
24.2
Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
24.3
Power considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
24.4
Parameter interpretation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
24.5
DC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
24.6
Flash characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
24.7
A/D converter characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
24.7.1
Conversion timing control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
24.7.2
A/D conversion accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
24.7.3
Total unadjusted error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
24.7.4
Analog reference pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
24.8
AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
24.8.1
Test waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
24.8.2
Definition of internal timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
24.8.3
Clock generation modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
24.8.4
Prescaler operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
24.8.5
Direct drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
24.8.6
Oscillator watchdog (OWD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
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