ST72F344K4T6 STMicroelectronics, ST72F344K4T6 Datasheet - Page 93

• 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
11.3
11.3.1
11.3.2
Note:
16-bit timer
Introduction
The timer consists of a 16-bit free-running counter driven by a programmable prescaler.
It may be used for a variety of purposes, including pulse length measurement of up to two
input signals (input capture) or generation of up to two output waveforms (output compare
and PWM).
Pulse lengths and waveform periods can be modulated from a few microseconds to several
milliseconds using the timer prescaler and the CPU clock prescaler.
Some devices of the ST7 family have two on-chip 16-bit timers. They are completely
independent, and do not share any resources. They are synchronized after a Device reset
as long as the timer clock frequencies are not modified.
This description covers one or two 16-bit timers. In the devices with two timers, register
names are prefixed with TA (Timer A) or TB (Timer B).
Main features
●
●
●
●
●
●
●
●
●
The block diagram is shown in
Some timer pins may not available (not bonded) in some devices. Refer to the device pin out
description.
When reading an input signal on a non-bonded pin, the value will always be ‘1’.
Programmable prescaler: f
Overflow status flag and maskable interrupt
External clock input (must be at least 4 times slower than the CPU clock speed) with
the choice of active edge
Output compare functions with
–
–
–
–
Input capture functions with
–
–
–
–
Pulse width modulation mode (PWM)
One-pulse mode
Reduced-power mode
5 alternate functions on I/O ports (ICAP1, ICAP2, OCMP1, OCMP2, EXTCLK). See
note below.
2 dedicated 16-bit registers
2 dedicated programmable signals
2 dedicated status flags
1 dedicated maskable interrupt
2 dedicated 16-bit registers
2 dedicated active edge selection signals
2 dedicated status flags
1 dedicated maskable interrupt
Doc ID 12321 Rev 5
Figure
CPU
divided by 2, 4 or 8.
42.
On-chip peripherals
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