ST7FDALIF2M6 STMicroelectronics, ST7FDALIF2M6 Datasheet - Page 32

• Manufacturer Part Number: ST7FDALIF2M6
• Description: IC MCU 8BIT 8K 20-SOIC
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST7FDALIF2M6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: DALI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 15
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.4 V ~ 5.5 V
• Data Converters: A/D 7x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-SOIC (7.5mm Width)
• Processor Series: ST7DALI
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 384 B
• Interface Type: DALI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 15
• Number Of Timers: 4 bit
• Operating Supply Voltage: 2.4 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST7FLITE-SK/RAIS, ST7DALI-EVAL, ST7MDT10-DVP3, ST7MDT10-EMU3, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• For Use With: 497-5046 - KIT TOOL FOR ST7/UPSD/STR7 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2131-5

Supply, reset and clock management
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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 reducing the number of external
components.
Main features
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●
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Internal RC oscillator adjustment
The device contains an internal RC oscillator with an accuracy of 1% for a given device,
temperature and voltage range (4.5 V-5.5 V). It must be calibrated to obtain the frequency
required in the application. This is done by software writing a calibration value in the RCCR
(RC Control Register).
Whenever the microcontroller is reset, the RCCR returns to its default value (FFh), i.e. each
time the device is reset, the calibration value must be loaded in the RCCR. Predefined
calibration values are stored in EEPROM for 3 and 5 V V
shown in the following table.
Clock management
–
–
–
–
–
–
–
–
–
Reset Sequence Manager (RSM)
System Integrity Management (SI)
–
–
1 MHz internal RC oscillator (enabled by option byte)
1 to 16 MHz or 32 kHz External crystal/ceramic resonator (selected by option byte)
External clock input (enabled by option byte)
PLL for multiplying the frequency by 8 or 4 (enabled by option byte)
For clock ART counter only: PLL32 for multiplying the 8 MHz frequency by 4
(enabled by option byte). The 8 MHz input frequency is mandatory and can be
obtained in the following ways:
1 MHz RC + PLLx8
16 MHz external clock (internally divided by 2)
2 MHz. external clock (internally divided by 2) + PLLx8
Crystal oscillator with 16 MHz output frequency (internally divided by 2)
Main supply Low voltage detection (LVD) with reset generation (enabled by option
byte)
Auxiliary Voltage detector (AVD) with interrupt capability for monitoring the main
supply (enabled by option byte)
DD
supply voltages at 25° C, as
ST7DALIF2