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參數(shù)資料
| 型號(hào)： | ST6245BQ1 |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | DRAM |
| 英文描述： | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| 中文描述： | 該CAT24FC02是一個(gè)2 KB的EEPROM的國(guó)內(nèi)256個(gè)8位每字舉辦的串行CMOS |
| 文件頁(yè)數(shù)： | 18/72頁(yè) |
| 文件大?。?/td> | 514K |
| 代理商： | ST6245BQ1 |
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ST62T45B/E45B
3 CLOCKS, RESET, INTERRUPTS AND POWER SAVING MODES
3.1 CLOCK SYSTEM
3.1.1 Main Oscillator
The MCU features a Main Oscillator which can be
driven by an external clock, or used in conjunction
with an AT-cut parallel resonant crystal or a suita-
ble ceramic resonator.
Figure 8 illustrates various possible oscillator con-
figurations usingan external crystalorceramic res-
onator, an external clock input. C
L1
an C
L2
should
have a capacitance in the range 12 to 22 pF for an
oscillator frequency in the 4-8 MHz range.
The internal MCU clock Frequency (F
INT
) is divid-
ed by 13 to drive the CPU core and by 12 to drive
the A/D converter and the watchdog timer, while
clock used to drive on-chip peripherals depends
on the peripheral as shown in the clock circuit
block diagram.
With an 8MHz oscillator frequency, the fastest
machine cycle is therefore 1.625
μ
s.
A machine cycleis thesmallest unit of time needed
to execute anyoperation (forinstance,to increment
the Program Counter). An instruction may require
two, four, or five machine cycles for execution.
Figure 8.Oscillator Configurations
Figure 9. Clock Circuit Block Diagram
OSC
in
OSC
out
C
L1n
C
L2
ST6xxx
CRYSTAL/RESONATORCLOCK
OSC
in
OSC
out
ST6xxx
EXTERNAL CLOCK
NC
VA0016
VA0015A
MAIN
OSCILLATOR
Core
: 13
: 12
Timer 1 & 2
Watchdog
POR
f
INT
ADC
OSCin
OSCout
f
OSC
f
INT
OSC32in
OSC32out
32kHz
OSCILLATOR
MUX
LCD
CONTROLLER
DRIVER
EOCR bit 5
(START/STOP)
17
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| ST62T45B | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
| ST6245BQ6 | The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST6245BQ1/XXX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| ST6245BQ6 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT OTP/EPROM MCU WITH LCD DRIVER, EEPROM AND A/D CONVERTER |
| ST6245BQ6/XXX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| ST6245-P/QFP | 功能描述:插座和適配器 ST62 P/QFP Adaptor RoHS:否 制造商:Silicon Labs 產(chǎn)品:Adapter 用于:EM35x |
| ST6245Q1/XX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
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