ST7FLITE49K2T6TR STMicroelectronics, ST7FLITE49K2T6TR Datasheet - Page 92

• 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
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Figure 45. Block diagram of input capture mode
Figure 46. Input capture timing diagram
Long range input capture
Pulses that last more than 8 µs can be measured with an accuracy of 4 µs if f
MHz in the following conditions:
●
●
●
●
This configuration allows to cascade the Lite timer and the 12-bit AT4 timer to get a 20-bit
input capture value. Refer to
COUNTER1
ATIC
ICF FLAG
f
ATIC PIN
COUNTER
The 12-bit AT4 timer is clocked by the Lite timer (RTC pulse: CK[1:0] = 01 in the ATCSR
register)
The ICS bit in the ATCSR2 register is set so that the LTIC pin is used to trigger the AT4
timer capture.
The signal to be captured is connected to LTIC pin
Input Capture registers LTICR, ATICRH and ATICRL are read
32 MHz
f
(1 ms
@ 8MHz)
LTIMER
timebase
f
OFF
CPU
01h
ATCSR
02h
xxh
ATICR
ICF
03h
CNTR1
12-BIT INPUT CAPTURE REGISTER
ATR1
Figure
ICIE
04h
12-BIT AUTORELOAD REGISTER
47.
IC INTERRUPT
CK1
12-BIT UPCOUNTER1
REQUEST
05h
CK0
INTERRUPT
06h
07h
04h
08h
ATICR READ
09h
ST7LITE49K2
OSC
0Ah
09h
equals 8
INTERRUPT
t