ST7DALIF2 STMicroelectronics, ST7DALIF2 Datasheet - Page 161

• 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
22
22.1
22.1.1
Default
Value
Res.
7
1
Device configuration
Each device is available for production in user programmable versions (FLASH) as well as in
factory coded versions (FASTROM).
ST7FDALI devices are FLASH versions. ST7PDALI devices are Factory Advanced Service
Technique ROM (FASTROM) versions: they are factory programmed FLASH devices.
ST7FDALI devices are shipped to customers with a default program memory content (FFh),
while FASTROM factory coded parts contain the code supplied by the customer. This
implies that FLASH devices have to be configured by the customer using the Option Bytes
while the FASTROM devices are factory configured.
Option bytes
The two option bytes allow the hardware configuration of the microcontroller to be selected.
The option bytes can be accessed only in programming mode (for example using a standard
ST7 programming tool).
Option byte 0
OPT7 = Reserved, must always be 1.
OPT6:4 = OSCRANGE[2:0] Oscillator range
When the internal RC oscillator is not selected (Option OSC=1), these option bits select the
range of the resonator oscillator current source or the external clock source.
Table 95.
Typ.
frequency range with
Resonator
External
Clock source:
CLKIN
1
OSCRANGE
2:0
1
OPTION BYTE 0
Oscillator source configuration
1
SEC1 SEC0
1
Reserved
LP
MP
MS
HS
VLP
on OSC1
on PB4
1
FMP
R
0
FMP
W
0
32.768 kHz
8~16 MHz
0
1~2 MHz
2~4 MHz
4~8 MHz
x4x8
PLL
1
7
OFF
PLL
1
PLL32
OFF
1
OPTION BYTE 1
2
0
0
0
0
1
1
1
1
OSC LVD1 LVD0
0
OSCRANGE
Device configuration
1
1
0
0
1
1
0
0
1
1
1
WDG
SW
1
161/171
0
0
1
0
1
0
1
1
0
WDG
HALT
0
1