ST7FDALIF2M6TR STMicroelectronics, ST7FDALIF2M6TR Datasheet - Page 50

• Manufacturer Part Number: ST7FDALIF2M6TR
• Description: IC MCU 8BIT 8K FLASH 20-SOIC
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST7FDALIF2M6TR

• 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: 3
• 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: 10 bit, 7 Channel / 13 bit, 7 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Power saving modes
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Power saving modes
Introduction
To give a large measure of flexibility to the application in terms of power consumption, five
main power saving modes are implemented in the ST7 (see
■
■
■
■
■
After a RESET the normal operating mode is selected by default (RUN mode). This mode
drives the device (CPU and embedded peripherals) by means of a master clock which is
based on the main oscillator frequency divided or multiplied by 2 (f
From RUN mode, the different power saving modes may be selected by setting the relevant
register bits or by calling the specific ST7 software instruction whose action depends on the
oscillator status.
Figure 20. Power saving mode transitions
Slow mode
This mode has two targets:
●
●
Slow mode is controlled by the SMS bit in the MCCSR register which enables or disables
Slow mode.
Slow
Wait (and Slow-Wait)
Active-halt
Auto Wake up From Halt (AWUFH)
Halt
To reduce power consumption by decreasing the internal clock in the device,
To adapt the internal clock frequency (f
AUTO WAKE UP FROM Halt
POWER CONSUMPTION
CPU
Active-halt
Slow Wait
Halt
) to the available supply voltage.
RUN
Slow
Wait
Low
High
Figure
OSC2
20):
).
ST7DALIF2