ST7FOXK1T6TR STMicroelectronics, ST7FOXK1T6TR Datasheet - Page 34
![IC MCU 8BIT 4K FLASH 20LQFP](/photos/27/13/271337/tqfp-32_sml.jpg)
ST7FOXK1T6TR
Manufacturer Part Number
ST7FOXK1T6TR
Description
IC MCU 8BIT 4K FLASH 20LQFP
Manufacturer
STMicroelectronics
Series
ST7r
Datasheet
1.ST7FOXF1M6.pdf
(226 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ST7FOXK1T6TR
Manufacturer:
STMicroelectronics
Quantity:
10 000
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Supply, reset and clock management
6
6.1
6.1.1
34/226
Supply, reset and clock management
The device includes a range of utility features for securing the application in critical
situations (for example in case of a power brown-out), and reducing the number of external
components. The main features are the following:
RC oscillator adjustment
Internal RC oscillator
The device contains an internal RC oscillator with a specific accuracy for a given device,
temperature and voltage range (4.5 V - 5.5 V). It must be calibrated to obtain the frequency
required in the application. This is done by software writing a 10-bit calibration value in the
RCCRH (RC Control register High) and in the bits 6:5 in the RCCRL (RC Control register
Low).
Whenever the microcontroller is reset, the RCCR returns to its default value (FFh), i.e. each
time the device is reset, the calibration value must be loaded in the RCCR. Predefined
calibration values are stored for 5 V V
Table 7.
1. The DEE0h and DEE1h addresses are located in a reserved area in non-volatile memory. They are read-
In 38-pulse ICC mode, the internal RC oscillator is forced as a clock source, regardless of
the selection in the option byte.
Section 12: Electrical characteristics on page 187
and accuracy of the RC oscillator.
To improve clock stability and frequency accuracy, it is recommended to place a decoupling
capacitor, typically 100 nF, between the V
V
SSA
only bytes for the application code. This area cannot be erased or programmed by any ICC operations.
For compatibility reasons with the RCCRL register, CR[1:0] bits are stored in the 5th and 6th position of
DEE1 address.
Clock management
–
–
–
–
Reset Sequence Manager (RSM)
System Integrity management (SI)
–
RCCRH
RCCRL
pins as close as possible to the ST7 device.
RCCR
8 MHz internal RC oscillator (enabled by option byte)
Auto wakeup RC oscillator (enabled by option byte)
1 to 16 MHz or 32 kHz External crystal/ceramic resonator (selected by option byte)
External clock input (enabled by option byte)
Main supply Low voltage detection (LVD) with reset generation (enabled by option
byte)
Predefined RC oscillator calibration values
f
Conditions
RC
T
V
A
DD
= 25°C
= 8 MHz
= 5V
DD
supply voltage at 25 °C (see
DD
and V
for more information on the frequency
SS
pins and also between the V
ST7FOXF1, ST7FOXK1, ST7FOXK2
DEE0h
DEE1h
Address
ST7FOX
(1)
(1)
(CR[9:2])
(CR[1:0])
Table
7).
DDA
and
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