ST72F361J7T3 STMicroelectronics, ST72F361J7T3 Datasheet - Page 20

• Manufacturer Part Number: ST72F361J7T3
• Description: IC MCU 8BIT 48K FLASH 44-LQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F361J7T3

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: LINSCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 48KB (48K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 3.8 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 44-LQFP
• Processor Series: ST72F3x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: LINSCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 34
• Number Of Timers: 2
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST72F36X-SK/RAIS, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 11 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

ST72361
6 SUPPLY, RESET AND CLOCK MANAGEMENT
The device includes a range of utility features for
securing the application in critical situations (for
example, in case of a power brown-out), and re-
ducing the number of external components. An
overview is shown in
For more details, refer to dedicated parametric
section.
Main features
■
■
■
■
Figure 11. Clock, Reset and Supply Block Diagram
20/225
RESET
OSC2
OSC1
– 4 Crystal/Ceramic resonator oscillators
– Main supply Low voltage detection (LVD)
– Auxiliary Voltage detector (AVD) with interrupt
V
V
Optional PLL for multiplying the frequency by 2
Reset Sequence Manager (RSM)
Multi-Oscillator Clock Management (MO)
System Integrity Management (SI)
SS
DD
capability for monitoring the main supply
OSCILLATOR
RESET SEQUENCE
Figure
MULTI-
(MO)
MANAGER
(RSM)
11.
f
OSC
(option)
PLL
f
OSC2
SICSR
SYSTEM INTEGRITY MANAGEMENT
0
AVD AVD LVD
IE
AVD Interrupt Request
6.1 PHASE LOCKED LOOP
If the clock frequency input to the PLL is in the
range 2 to 4 MHz, the PLL can be used to multiply
the frequency by two to obtain an f
MHz. The PLL is enabled by option byte. If the PLL
is disabled, then f
Caution: The PLL is not recommended for appli-
cations where timing accuracy is required.
“PLL Characteristics” on page 187.
Figure 10. PLL Block Diagram
AUXILIARY VOLTAGE
F
LOW VOLTAGE
f
RF
OSC
DETECTOR
DETECTOR
(AVD)
(LVD)
0
/ 8000
0
PLL x 2
0
OSC2
/ 2
WDG
RF
= f
OSC
CLOCK (MCC/RTC)
WITH REALTIME
PLL OPTION BIT
TIMER (WDG)
CONTROLLER
MAIN CLOCK
WATCHDOG
/2.
8-BIT TIMER
0
1
OSC2
of 4 to 8
f
OSC2
f
See
CPU