ST7LIT10BY1 STMicroelectronics, ST7LIT10BY1 Datasheet - Page 149
ST7LIT10BY1
Manufacturer Part Number
ST7LIT10BY1
Description
8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, DATA EEPROM, ADC, 5 TIMERS, SPI
Manufacturer
STMicroelectronics
Datasheet
1.ST7LIT10BF0.pdf
(159 pages)
Specifications of ST7LIT10BY1
Up To 4 Kbytes Single Voltage Extended Flash (xflash) 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.
128 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 (on ST7FLITE15B and ST7FLITE19B), crystal/ceramic resonator or external clock
Five Power Saving Modes
Halt, Active-Halt, Auto Wake-up from Halt, Wait and Slow
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15 DEVICE CONFIGURATION AND ORDERING INFORMATION
Each device is available for production in user pro-
grammable versions (FLASH).
15.1 OPTION BYTES
The two option bytes allow the hardware configu-
ration of the microcontroller to be selected.
The option bytes can be accessed only in pro-
gramming mode (for example using a standard
ST7 programming tool).
OPTION BYTE 0
OPT7 = Reserved, must always be 1.
OPT6 = PKG Package selection
0: 16-pin package
1: 20-pin package
OPT5:4 = CLKSEL Clock Source Selection
When the internal RC oscillator is not selected
(Option OSC=1), these option bits select the clock
source: resonator oscillator or external clock
Note: When the internal RC oscillator is selected,
the CLKSEL option bits must be kept at their de-
fault value in order to select the 256 clock cycle
delay (see
Default
Resonator
Ext.
Clock source:
CLKIN
Value
Clock Source
Reserved
Res. PKG
7
1
Section
on PB4
on PC0
1
7.5).
CLKSEL
1
Ext. Osc Disabled/
Ext. Osc Enabled/
OPTION BYTE 0
Port C Disabled
Port C Enabled
1
Port C
SEC1 SEC0
0
1
CLKSEL
0
0
1
1
FMP
R
0
0
1
1
0
FMP
W
0
0
ST7FLITE1xB devices are shipped to customers
with a default program memory content (FFh).
This implies that FLASH devices have to be con-
figured by the customer using the Option Bytes.
OPT3:2 = SEC[1:0] Sector 0 size definition
These option bits indicate the size of sector 0 ac-
cording to the following table.
OPT1 = FMP_R Read-out protection
Readout protection, when selected provides a pro-
tection against program memory content extrac-
tion and against write access to Flash memory.
Erasing the option bytes when the FMP_R option
is selected will cause the whole memory to be
erased first and the device can be reprogrammed.
Refer to the ST7 Flash Programming Reference
Manual and
tails
0: Read-out protection off
1: Read-out protection on
OPT0 = FMP_W FLASH write protection
This option indicates if the FLASH program mem-
ory is write protected.
Warning: When this option is selected, the pro-
gram memory (and the option bit itself) can never
be erased or programmed again.
0: Write protection off
1: Write protection on
Sector 0 Size
x4x8
PLL
1
7
0.5k
1k
2k
4k
OFF
PLL
1
section 4.5 on page 14
PLL32
OFF
1
OPTION BYTE 1
SEC1
OSC LVD1 LVD0
0
0
1
1
0
1
1
ST7LITE1xB
for more de-
SEC0
WDG
SW
1
0
1
0
1
149/159
HALT
WDG
0
1
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