STR731FV1T6 STMicroelectronics, STR731FV1T6 Datasheet - Page 50

• Manufacturer Part Number: STR731FV1T6
• Description: MCU 32BIT 128K FLASH 100-TQFP
• Manufacturer: STMicroelectronics
• Series: STR7r

Specifications of STR731FV1T6

• Core Processor: ARM7
• Core Size: 32-Bit
• Speed: 36MHz
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 72
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TQFP, 100-VQFP
• Processor Series: STR731x
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 16 KB
• Interface Type: CAN, I2C, SPI, UART
• Maximum Clock Frequency: 36 MHz
• Number Of Programmable I/os: 72
• Number Of Timers: 9
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWARM, EWARM-BL, MCBSTR730, KSK-STR731-PL, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: STR730-SK/HIT, STR730-SK/RAIS, STR731-SK/IAR, STR730-EVAL, STX-PRO/RAIS, STX-RLINK, STR79-RVDK/CPP, STR79-RVDK, STR79-RVDK/UPG
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 12 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Known limitations
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Known limitations
Low power wait for interrupt mode
When the STR73x device is put in Low Power Wait For Interrupt mode (LPWFI), the Flash
goes into low power mode or power down mode, depending on the setting of the PWD bit in
the Flash Control Register 0 (default is ‘0’, Low Power mode). This default mode can create
excessive voltage conditions on the transistor gates and may affect the long term behavior
of the Low Power mode circuitry.
Workaround
There is no workaround. If Low Power Wait For Interrupt mode is used, it is strongly
suggested to configure the Flash to enter power down mode (bit PWD = ‘1’).
PLL free running mode at high temperature
When the STR73x device is operated and an ambient temperature (T
and the main system clock (f
may not work properly.
Workaround
At high temperature (more than 55° C), it is recommended to use the internal RC oscillator
as a backup clock source rather than the PLL free running mode.
MCLK
) is sourced by the PLL in free running mode, the device
A
) of more than 55° C
STR73xFxx