ST7LITE49K2 STMicroelectronics, ST7LITE49K2 Datasheet - Page 41

• Manufacturer Part Number: ST7LITE49K2
• Description: 8-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST7LITE49K2

• 8 Kbytes Single Voltage Extended Flash (xflash) Program Memory With Read-out Protection In-circuit Programming And In-application Programming (icp And Iap) Endurance: 10K write/erase cycles guaranteed Data retention
• 256 Bytes Data Eeprom With Read-out Protection. 300k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55 °C.
• Clock Sources: Internal trimmable 8 MHz RC oscillator, auto-wakeup internal low power - low frequency oscillator, crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-halt, Auto-wakeup from Halt, Wait and Slow

ST7LITE49K2
Figure 13. Clock management block diagram
CLKIN
CLKIN
/OSC1
OSC2
f
OSC
CK2
1-16 MHz
or 32 kHz
OSC
CR9
Prescaler
CK1
CLKIN
CLKIN
CLKSEL[1:0]
CR8
/32 DIVIDER
Option bits
8 MHz (f
CK0
CR7
RC
Tunable
RC
CR6
500 kHz
Oscillator
)
8 MHz
4 MHz
2 MHz
1 MHz
DIVIDER
CR1
CR5
/2
OSC
CR0
RC OSC
LITE TIMER 2 COUNTER
CR4
f
f
OSC
OSC
MCO
DIVIDER
CLKIN/2
/32
/2
CR3
8-BIT
SMS
1
0
Clock controller
CR2
AWU RC OSC
f
MCCSR
CPU
AVDTHCR
RCCR
8 MHz --> 32 MHz
Supply, reset and clock management
(1ms timebase @ 8 MHz f
PLL
f
LTIMER
SICSR
CLKIN/2
OSC/2
f
CPU
RC/AWU
CLKSEL[1:0]
TO CPU AND
PERIPHERALS
AT TIMER 2
Option bits
12-BIT
CKCNTCSR
f
CPU
OSC
f
OSC
)
MCO
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