ST7LITE49K2 STMicroelectronics, ST7LITE49K2 Datasheet - Page 61

• 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
Table 18.
1. For an interrupt, all events do not have the same capability to wake up the MCU from Halt, Active-Halt or Auto-wakeup from
2. This interrupt exits the MCU from Auto-wakeup from Halt mode only.
3. These interrupts exit the MCU from Active-Halt mode only.
Number
13
8
Halt modes. Refer to the description of interrupt events for more details.
10
11
12
0
1
2
3
4
5
6
7
9
(3)
(3)
LITE TIMER
AT TIMER
COMPB
COMPA
Source
RESET
ST7LITE49K2 interrupt mapping
TIM16
TRAP
block
AWU
AVD
SPI
I
ei0
ei1
ei2
2
C
Auxiliary Voltage Detector interrupt
Lite timer RTC/IC/RTC2 interrupt
16-bit timer peripheral interrupt
AT timer input Capture/Output
AT timer Overflow 2 interrupt
AT timer overflow 1 interrupt
External interrupt 2 (Port C)
External interrupt 0 (Port A)
External interrupt 1 (Port B)
Comparator A interrupt
Comparator B interrupt
Auto-wakeup interrupt
Compare interrupt
Software interrupt
Description
SPI interrupt
I
2
C interrupt
Reset
AWUCSR
CMPBCR
CMPACR
Register
I2CSR1/
SPICSR
LTCSR2
I2CSR2
ATCSR
TACSR
SICSR
label
N/A
N/A
Priority
Highest
Priority
Lowest
Priority
order
AWUFH
Halt or
yes
from
Exit
yes
yes
yes
no
no
no
no
no
no
no
no
no
no
(1)
(2)
FFECh-FFEDh
FFFCh-FFFDh
FFEEh-FFEFh
FFEAh-FFEBh
FFFEh-FFFFh
FFFAh-FFFBh
FFE8h-FFE9h
FFE6h-FFE7h
FFE4h-FFE5h
FFE2h-FFE3h
FFE0h-FFE1h
FFF8h-FFF9h
FFF6h-FFF7h
FFF4h-FFF5h
FFF2h-FFF3h
FFF0h-FFF1h
Address
vector
Interrupts
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