ST72F321R6T6 STMicroelectronics, ST72F321R6T6 Datasheet - Page 72

• Manufacturer Part Number: ST72F321R6T6
• Description: MCU 8BIT 32KB FLASH 64TQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F321R6T6

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 48
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 3.8 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• 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: 48
• Number Of Timers: 5
• Operating Supply Voltage: 3.8 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST7F521-IND/USB, ST7232X-EVAL, ST7MDT20-DVP3, ST7MDT20M-EMU3, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• Height: 1.4 mm
• Length: 14 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 3.8 V
• Width: 14 mm
• For Use With: 497-5046 - KIT TOOL FOR ST7/UPSD/STR7 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: In Transition
• Other names: 497-4845

ST72321Rx ST72321ARx ST72321Jx
16-BIT TIMER (Cont’d)
Figure 43. Counter Timing Diagram, Internal Clock Divided by 2
Figure 44. Counter Timing Diagram, Internal Clock Divided by 4
Figure 45. Counter Timing Diagram, Internal Clock Divided By 8
Note: The MCU is in reset state when the internal reset signal is high, when it is low the MCU is running.
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TIMER OVERFLOW FLAG (TOF)
TIMER OVERFLOW FLAG (TOF)
TIMER OVERFLOW FLAG (TOF)
COUNTER REGISTER
COUNTER REGISTER
COUNTER REGISTER
INTERNAL RESET
INTERNAL RESET
INTERNAL RESET
TIMER CLOCK
CPU CLOCK
TIMER CLOCK
TIMER CLOCK
CPU CLOCK
CPU CLOCK
FFFC
FFFC
FFFD FFFE FFFF 0000 0001 0002 0003
FFFD
FFFD
0000
0001
0000