ST7DALIF2 STMicroelectronics, ST7DALIF2 Datasheet - Page 49

• Manufacturer Part Number: ST7DALIF2
• Description: 8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, TIMERS, SPI
• Manufacturer: STMicroelectronics

Specifications of ST7DALIF2

• 8 Kbytes Single Voltage Flash Program Memory With Read-out Protection, In-circuit Programming And In-application Programming (icp And Iap). 10k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55°C.
• 256 Bytes Data Eeprom With Read-out Protection. 300k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55°C.
• Clock Sources: Internal 1% RC oscillator, crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-Halt, Wait and Slow, Auto Wake Up From Halt

ST7DALIF2
Table 17.
1. Reset state
Bits 5:4 = ei2[1:0] ei2 pin selection
These bits are written by software. They select the Port B I/O pin used for the ei2 external
interrupt according to the table below.
Table 18.
1. Reset state
2. PB4 cannot be used as an external interrupt in Halt mode.
Bit 3:2 = ei1[1:0] ei1 pin selection
These bits are written by software. They select the Port A I/O pin used for the ei1 external
interrupt according to the table below.
Table 19.
1. Reset state
Bits 1:0 = ei0[1:0] ei0 pin selection
These bits are written by software. They select the Port A I/O pin used for the ei0 external
interrupt according to the table below.
Table 20.
1. Reset state
ei31
ei21
ei11
ei01
0
0
1
0
0
1
1
0
0
1
1
0
0
1
1
External interrupt I/O pin selection
External interrupt I/O pin selection
External interrupt I/O pin selection
External interrupt I/O pin selection
ei30
ei20
ei10
ei00
0
1
0
0
1
0
1
0
1
0
1
0
1
0
1
I/O pin
PB0
I/O pin
PB3
PB4
I/O pin
I/O pin
PA0
PA7
PB1
PB2
PB5
PB6
PA4
PA5
PA6
PA1
PA2
PA3
(1)
(1)
(1)
(1)
(2)
Interrupts
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