ST72F63BH2T1 STMicroelectronics, ST72F63BH2T1 Datasheet - Page 41

• Manufacturer Part Number: ST72F63BH2T1
• Description: IC MCU 8BIT 8K FLASH 48-LQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F63BH2T1

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SCI, USB
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 27
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 12x8b
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 48-LQFP
• Processor Series: ST72F6x
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 384 B
• Interface Type: I2C, SCI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 27
• Number Of Timers: 1
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST7MDTU3-EPB/US, ST7MDTULS-EVAL, ST72F63B-SK/RAIS, ST7MDTU3-EMU3, STX-RLINK
• Minimum Operating Temperature: 0 C
• On-chip Adc: 8 bit, 8 Channel / 8 bit, 12 Channel
• For Use With: 497-5521 - EVAL BOARD LOW SPEED USB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

ST7263Bxx
8.3
8.4
Figure 20. Halt mode flowchart
1. Before servicing an interrupt, the CC register is pushed on the stack. The I-Bit is set during the interrupt
Slow mode
In Slow mode, the oscillator frequency can be divided by 2 as selected by the SMS bit in the
Miscellaneous register. The CPU and peripherals are clocked at this lower frequency. Slow
mode is used to reduce power consumption, and enables the user to adapt the clock
frequency to the available supply voltage.
Wait mode
Wait mode places the MCU in a low power consumption mode by stopping the CPU.
This power saving mode is selected by calling the “WFI” ST7 software instruction.
All peripherals remain active. During Wait mode, the I bit of the CC register is forced to 0 to
enable all interrupts. All other registers and memory remain unchanged. The MCU remains
in Wait mode until an interrupt or Reset occurs, whereupon the Program Counter branches
to the starting address of the interrupt or Reset service routine.
routine and cleared when the CC register is popped.
N
Doc ID 7516 Rev 8
INTERRUPT*
EXTERNAL
Y
OSCILLATOR
PERIPH. CLOCK
CPU CLOCK
I-BIT
OSCILLATOR
PERIPH. CLOCK
OR SERVICE INTERRUPT
CPU CLOCK
I-BIT
FETCH RESET VECTOR
N
4096 CPU CLOCK
CYCLES DELAY
HALT INSTRUCTION
RESET
Y
OFF
OFF
OFF
CLEARED
ON
ON
ON
SET
Power saving modes
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