ST7FLITE49K2T6TR STMicroelectronics, ST7FLITE49K2T6TR Datasheet - Page 89

• Manufacturer Part Number: ST7FLITE49K2T6TR
• Description: IC MCU 8BIT 8K FLASH 32LQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST7FLITE49K2T6TR

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 24
• 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 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Processor Series: ST7FLITE4x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 384 B
• Interface Type: I2C, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 4
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST7FLITE-SK/RAIS, ST7FLI49M-D/RAIS, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 10 Channel
• For Use With: 497-8399 - BOARD EVAL ST7LITE49M/STLED316S497-5858 - EVAL BOARD PLAYBACK ST7FLITE
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ST7LITE49K2
Figure 42. Dead time generation
In the above example, when the DTE bit is set:
●
●
With this programmable delay (Tdt), the PWM0 and PWM1 signals which are generated are
not overlapped.
Break function
The break function can be used to perform an emergency shutdown of the application being
driven by the PWM signals.
The break function is activated by the external BREAKx pins. This can be selected by using
the BRxSEL bits in BREAKCRx register. In order to use the break function it must be
previously enabled by software setting the BPENx bits in the BREAKCRx registers.
The Break active level can be programmed by the BRxEDGE bits in the BREAKCRx
registers. When an active level is detected on the BREAKx pins, the BAx bits are set and the
break function is activated. In this case, the PWM signals are forced to BREAK value if
respective OEx bit is set in PWMCR register.
Software can set the BAx bits to activate the break function without using the BREAKx pins.
The BREN1 and BREN2 bits in the BREAKEN register are used to enable the break
activation on the 2 counters respectively. In Dual Timer mode, the break for PWM2 and
PWM3 is enabled by the BREN2 bit. In Single Timer mode, the BREN1 bit enables the
break for all PWM channels.
CK_CNTR1
CNTR1
PWM goes low at DCR0 match and goes high at ATR1+Tdt
PWM1 goes high at DCR0+Tdt and goes low at ATR match.
PWM 1
PWM 0
PWM 0
PWM 1
counter = DCR0
DCR0
DCR0+1
T
counter1
T
dt
counter = DCR1
OVF
T
dt
= DT[6:0] x T
ATR1
counter1
T
dt
On-chip peripherals
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