ST7FOXK1T6TR STMicroelectronics, ST7FOXK1T6TR Datasheet - Page 36

• Manufacturer Part Number: ST7FOXK1T6TR
• Description: IC MCU 8BIT 4K FLASH 20LQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST7FOXK1T6TR

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Processor Series: ST7FOXx
• Core: ST7
• Data Bus Width: 8 bit
• Data Ram Size: 384 B
• Interface Type: I2C
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 4
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Development Tools By Supplier: ST7FLITE-SK/RAIS, STX-RLINK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 1 Channel
• For Use With: 497-5049 - KIT STARTER RAISONANCE ST7FLITE
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Supply, reset and clock management
Caution:
6.1.3
36/226
If a programming cycle is interrupted (by a RESET action), the integrity of the data in
memory will not be guaranteed.
When the Read-Out Protection is enabled through an option bit (see
bytes), these two bytes are protected against Read-out (including a re-write protection). In
Flash devices, when this protection is removed by reprogramming the option byte, these two
bytes are automatically erased.
Figure 10. RC user calibration programming cycle
Auto wakeup RC oscillator
The ST7FOX also contains an Auto wakeup RC oscillator. This RC oscillator should be
enabled to enter Auto wakeup from halt mode.
The Auto wakeup (AWU) RC oscillator can also be configured as the startup clock through
the CKSEL[1:0] option bits (see
This is recommended for applications where very low power consumption is required.
Switching from one startup clock to another can be done in run mode as follows (see
Figure
Case 1 Switching from internal RC to AWU
1.
2.
3.
4.
5.
Internal
Programming
voltage
t
PROG
Set the RC/AWU bit in the CKCNTCSR register to enable the AWU RC oscillator
The RC_FLAG is cleared and the clock output is at 1.
Wait 3 AWU RC cycles till the AWU_FLAG is set
The switch to the AWU clock is made at the positive edge of the AWU clock signal
Once the switch is made, the internal RC is stopped
11):
is typically 5 ms and max 10 ms
DATA LATCHES
Byte 1 Byte 2
WRITE OF
READ OPERATION NOT POSSIBLE
ERASE CYCLE
Section 13.1: Option bytes on page
t
PROG
WRITE CYCLE
ST7FOXF1, ST7FOXK1, ST7FOXK2
READ OPERATION POSSIBLE
211).
Section 13.1: Option
RCCLAT
RCCPGM