ST72F344K4T6 STMicroelectronics, ST72F344K4T6 Datasheet - Page 99

• Manufacturer Part Number: ST72F344K4T6
• Description: MCU 8BIT 16KB FLASH MEM 32-LQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F344K4T6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, LIN, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Processor Series: ST72F3x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: I2C, SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 34
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST72F34X-SK/RAIS, ST7MDT40-EMU3, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• For Use With: 497-5046 - KIT TOOL FOR ST7/UPSD/STR7 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5611

ST72344xx ST72345xx
6
Moreover if one of the ICAPi pin is configured as an input and the second one as an output,
an interrupt can be generated if the user toggle the output pin and if the ICIE bit is set.
This can be avoided if the input capture function i is disabled by reading the ICiHR (see note
1).
The TOF bit can be used with interrupt in order to measure event that go beyond the timer
range (FFFFh).
Figure 47. Input capture block diagram
Figure 48. Input capture timing diagram
1. The active edge is the rising edge.
2. The time between an event on the ICAPi pin and the appearance of the corresponding flag is from 2 to 3
Output compare
In this section, the index, i, may be 1 or 2 because there are 2 output compare functions in
the 16-bit timer.
This function can be used to control an output waveform or indicate when a period of time
has elapsed.
COUNTER REGISTER
ICAP2
ICAP1
pin
pin
CPU clock cycles. This depends on the moment when the ICAP event happens relative to the timer clock.
ICAPi REGISTER
TIMER CLOCK
ICAPi FLAG
ICAPi PIN
16-BIT
EDGE DETECT
IC2R Register
16-BIT
CIRCUIT2
FREE RUNNING
COUNTER
FF01
EDGE DETECT
Doc ID 12321 Rev 5
CIRCUIT1
IC1R Register
FF02
ICF1
ICIE
FF03
ICF2
(Control Register 1) CR1
(Control Register 2) CR2
CC1
On-chip peripherals
(Status Register) SR
CC0
FF03
0
IEDG2
IEDG1
0
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