STR731FV1T6 STMicroelectronics, STR731FV1T6 Datasheet - Page 29

• 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

STR73xFxx
4.3.2
Note:
1
2
Clock and timing characteristics
Crystal / ceramic resonator oscillator
The STR73xF can operate with a crystal oscillator or resonator clock source.
simple model of the internal oscillator driver as well as example of connection for an oscillator or a
resonator.
Figure 12. Crystal oscillator and resonator
XTAL2 must not be used to directly drive external circuits.
For test or boot purpose, XTAL2 can be used as an high impedance input pin to provide an
external clock to the device. XTAL1 should be grounded, and XTAL2 connected to a wave
signal generator providing a 0 to VDD signal. Directly driving XTAL2 may results in
deteriorated jitter and duty cycle.
C
L
STR73x
Crystal
R
S
STR73x
C
L
R
F
I
V
DD
Resonator
STR73x
Electrical parameters
Figure 12
describes a
29/52