參數資料
型號： ST7FLIT19B
廠商： 意法半導體
英文描述： 8-Bit MCU With Single Voltage Flash Memory, Data EEPROM, ADC, 5 Timers, SPI(內部RC,PLL,ADC,ROP,ICP, IAP,SPI的8位MCU)
中文描述： 8位微控制器單電壓閃存存儲器，數據EEPROM，模數轉換器，5計時器和SPI（內部鋼筋，鎖相環(huán)，藝發(fā)局，人事，電感，國際檢察官聯(lián)合會的SPI的8位微控制器）
文件頁數： 147/155頁
文件大?。?/td> 2968K
代理商： ST7FLIT19B
ST7LITE1xB
147/155
OPTION BYTES
(Cont’d)
OPTION BYTE 1
OPT7 =
PLLx4x8
PLL Factor selection.
0: PLLx4
1: PLLx8
OPT6 =
PLLOFF
PLL disable.
0: PLL enabled
1: PLL disabled (by-passed)
OPT5 =
PLL32OFF
32MHz PLL disable.
0: PLL32 enabled
1: PLL32 disabled (by-passed)
OPT4 =
OSC
RC
Oscillator selection
0: RC oscillator on
1: RC oscillator off
Notes:
– 1% RC oscillator available on ST7LITE15B and
ST7LITE19B devices only
– If the RC oscillator is selected, then to improve
clock stability and frequency accuracy, it is rec-
ommended to place a decoupling capacitor, typ-
ically 100nF, between the V
DD
and V
SS
pins as
close as possible to the ST7 device.
OPT3:2 =
LVD[1:0]
Low voltage detection selec-
tion
These option bits enable the LVD block with a se-
lected threshold as shown in
Table 26
.
Table 26. LVD Threshold Configuration
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 27. List of valid option combinations
Note 1: Configuration available on ST7LITE15B and ST7LITE19B devices only
Note:
see Clock Management Block diagram in
Figure 14
Configuration
LVD1 LVD0
1
1
0
0
LVD Off
Highest Voltage Threshold (
～
4.1V)
Medium Voltage Threshold (
～
3.5V)
Lowest Voltage Threshold (
～
2.8V)
1
0
1
0
Operating conditions
Clock Source
Option Bits
PLLOFF
1
0
-
1
0
-
1
-
0
1
-
0
V
DD
range
PLL
off
x4
x8
off
x4
x8
off
x4
x8
off
x4
x8
Typ f
CPU
1MHz @3.3V
4MHz @3.3V
-
0-4MHz
4MHz
-
1MHz @5V
-
8MHz @5V
0-8MHz
-
8 MHz
OSC
0
0
-
1
1
-
0
-
0
1
-
1
PLLx4x8
1
0
-
1
0
-
1
-
1
1
-
1
2.7V - 3.3V
Internal RC 1%
1)
External clock
3.3V - 5.5V
Internal RC 1%
1)
External clock
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相關代理商/技術參數
參數描述
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