ST7DALIF2 STMicroelectronics, ST7DALIF2 Datasheet - Page 163

• 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
Note:
OPT3:2 = LVD[1:0] Low voltage detection selection
These option bits enable the LVD block with a selected threshold as shown in
Table 97.
OPT1 = WDG SW Hardware or Software
Watchdog
This option bit selects the watchdog type.
0: Hardware (watchdog always enabled)
1: Software (watchdog to be enabled by software)
OPT0 = WDG HALT Watchdog Reset on Halt
This option bit determines if a RESET is generated when entering Halt mode while the
Watchdog is active.
0: No Reset generation when entering Halt mode
1: Reset generation when entering Halt mode
Table 98.
See Clock Management Block diagram in
LVD Off
Highest Voltage Threshold (∼4.1V)
Medium Voltage Threshold (∼3.5V)
Lowest Voltage Threshold (∼2.8V)
2.4 V - 3.3 V
3.3 V - 5.5 V
V
DD
range
LVD threshold configuration
List of valid option combinations
Internal RC 1%
External clock or
oscillator
(depending on OPT6:4
selection)
Internal RC 1%
External clock or
oscillator
(depending on OPT6:4
selection)
Clock source
Operating conditions
Configuration
PLL
off
x4
x8
off
x4
x8
off
x4
x8
off
x4
x8
Figure 12
0.7 MHz @3 V
2.8 MHz @3 V
1 MHz @5 V
8 MHz @5 V
Typ f
0-4 MHz
0-8 MHz
4 MHz
8 MHz
-
-
-
-
CPU
OSC
0
0
1
1
0
0
1
1
-
-
-
-
Device configuration
Option bits
PLLOFF PLLx4x8
LVD1
1
1
0
0
1
0
1
0
1
0
1
0
-
-
-
-
Table
LVD0
97.
163/171
1
0
1
0
1
1
1
0
0
1
1
1
-
-
-
-