ST7LITE49M STMicroelectronics, ST7LITE49M Datasheet - Page 73
ST7LITE49M
Manufacturer Part Number
ST7LITE49M
Description
8-bit MCU
Manufacturer
STMicroelectronics
Datasheet
1.ST7LITE49M.pdf
(187 pages)
Specifications of ST7LITE49M
4 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
128 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
A/d Converter
10 input channels
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ST7LITE49M
10.6
10.7
10.7.1
10.7.2
Interrupts
The external interrupt event generates an interrupt if the corresponding configuration is
selected with DDR and OR registers and if the I bit in the CC register is cleared (RIM
instruction).
Table 27.
See application notes AN1045 software implementation of
software LCD driver
Device-specific I/O port configuration
The I/O port register configurations are summarized in
Section 10.7.2: Other
Standard ports
Table 28.
Other ports
Table 29.
Table 30.
M
External interrupt on selected
Interrupt event
external event
Description of interrupt events
PA5:0, PB7:0, PC7:4 and PC2:0 pins
PA7:6 pins
PC3 pin
pull-up interrupt input
ports.
open-drain output
open-drain output
push-pull output
push-pull output
interrupt input
floating input
floating input
floating input
pull-up input
Mode
Mode
Mode
Doc ID 13562 Rev 3
Event flag
-
control bit
Enable
DDRx
ORx
Section 10.7.1: Standard ports
I
2
C
bus master, and AN1048 -
Exit from
DDR
DDR
DDR
0
0
1
1
0
0
1
1
0
0
Wait
Yes
Exit from
OR
OR
OR
I/O ports
Halt
Yes
0
1
0
1
0
1
0
1
0
1
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