ST72215G2 STMicroelectronics, ST72215G2 Datasheet - Page 17

• Manufacturer Part Number: ST72215G2
• Description: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY,ADC, 16-BIT TIMERS, SPI, I2C INTERFACES
• Manufacturer: STMicroelectronics

Specifications of ST72215G2

• Emulation Voltage: 5.5 V

6 SUPPLY, RESET AND CLOCK MANAGEMENT
The ST72104G, ST72215G, ST72216G and
ST72254G microcontrollers include a range of util-
ity features for securing the application in critical
situations (for example in case of a power brown-
out), and reducing the number of external compo-
nents. An overview is shown in
See
TICS" on page 96
Main Features
■
■
■
■
Figure 8. Clock, Reset and Supply Block Diagram
– 4 Crystal/Ceramic resonator oscillators
– 1 External RC oscillator
– 1 Internal RC oscillator
– Clock Filter
– Backup Safe Oscillator
Supply Manager with main supply low voltage
detection (LVD)
Reset Sequence Manager (RSM)
Multi-Oscillator (MO)
Clock Security System (CSS)
RESET
OSC2
OSC1
MCO
Section 13 "ELECTRICAL CHARACTERIS-
VDD
VSS
for more details.
OSCILLATOR
RESET SEQUENCE
MULTI-
(MO)
LOW VOLTAGE
MANAGER
DETECTOR
(RSM)
(LVD)
Figure
CLOCK SECURITY SYSTEM
8.
CLOCK
FILTER
ST72104Gx, ST72215Gx, ST72216Gx, ST72254Gx
(CSS)
CRSR
SAFE
OSC
PERIPHERAL
WATCHDOG
0
FROM
0
f
OSC
0
CONTROLLER
MAIN CLOCK
RF
(MCC)
LVD
0
CSS INTERRUPT
IE
CSS
D
WDG
f
RF
CPU
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