ST7FLITE49K2T6TR STMicroelectronics, ST7FLITE49K2T6TR Datasheet - Page 178

• 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

On-chip peripherals
11.8.3
178/245
Functional description
To make an analog comparison, the CMPON bit in the CMPxCR register must be set to
power-on the comparator and internal voltage reference module.
The VP comparator A input is mapped on PC6 and the VP comparator B input is mapped on
PC5. The VN comparator A input is mapped on PA0 and the VN comparator B input is
mapped on PC4.
The internal voltage reference can provide a range of different voltages to the comparator
VN input, selected by several bits in the VREFCR register, as described in
page
The comparator A output is connected to pin PC7 and the comparator B output is connected
to pin PB5 when the COUT bit in the CMPxCR register is set.
The comparator output is also connected internally to the break function of the 12-bit
Autoreload Timer (refer to
When the Comparator is OFF, the output value of comparator is ‘1’.
Important note: To avoid spurious toggling of the output of the comparator due to noise on
the voltage reference, it is recommended to enable the hysteresis through the CHYST bit in
the CMPxCR register.
Figure 81. Analog comparator and internal voltage reference
COMPINA+
COMPINB+
COMPINB-
COMPINA-
180.
1.2V Bandgap
Voltage Reference
Section 11.2: Dual 12-bit autoreload timer on page
VCEXT bit
VCBGR bit
VR[3:0] bits
4
0
1
VP
VN
VCEXTB bit
Comparator
+
-
VP
VN
Comparator
+
-
Break 1 input
to 12-bit
Break 2 input
to 12-bit Autoreload Timer
COMPA
Autoreload Timer
Table 59 on
ST7LITE49K2
84)
COMPB