參數(shù)資料
型號: ST7FLIT19B
廠商: 意法半導(dǎo)體
英文描述: 8-Bit MCU With Single Voltage Flash Memory, Data EEPROM, ADC, 5 Timers, SPI(內(nèi)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(shù)據(jù)EEPROM,模數(shù)轉(zhuǎn)換器,5計時器和SPI(內(nèi)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(shù): 121/155頁
文件大?。?/td> 2968K
代理商: ST7FLIT19B
ST7LITE1xB
121/155
13.5 CLOCK AND TIMING CHARACTERISTICS
Subject to general operating conditions for V
DD
, f
OSC
, and T
A
.
13.5.1 General Timings
Notes:
1.
Guaranteed by Design. Not tested in production.
2.
Data based on typical application software.
3.
Time measured between interrupt event and interrupt vector fetch.
t
c(INST)
is the number of t
CPU
cycles needed to fin-
ish the current instruction execution.
4.
Data based on design simulation and/or technology characteristics, not tested in production.
13.5.2 External Clock Source
Figure 78. Typical Application with an External Clock Source
13.5.3 Auto Wakeup from Halt Oscillator (AWU)
Note: 1.
Guaranteed by Design. Not tested in production.
Symbol
Parameter
1)
Conditions
Min
Typ
2)
Max
Unit
t
c(INST)
Instruction cycle time
f
CPU
=8MHz
2
3
12
t
CPU
ns
t
CPU
μ
s
250
10
1.25
375
1500
22
2.75
t
v(IT)
Interrupt reaction time
3)
t
v(IT)
=
t
c(INST)
+ 10
f
CPU
=8MHz
Symbol
Parameter
Conditions
Min
0.7xV
DD
V
SS
Typ
Max
V
DD
0.3xV
DD
Unit
V
OSC1H
or
V
CLKIN_H
V
OSC1L
or
V
CLKIN_L
t
w(OSC1H) or
t
w(CLKINH)
t
w(OSC1L) or
t
w(CLKINL)
t
r(OSC1) or
t
r(CLKIN)
t
f(OSC1) or
t
f(CLKIN)
I
L
OSC1/CLKIN input pin high level voltage
OSC1/CLKIN input pin low level voltage
see
Figure 78
V
OSC1/CLKIN high or low time
4)
15
ns
OSC1/CLKIN rise or fall time
4)
15
OSCx/CLKIN Input leakage current
V
SS
V
IN
V
DD
±1
μ
A
OSC1/CLKIN
OSC2
f
OSC
EXTERNAL
CLOCK SOURCE
ST72XXX
Not connected internally
V
OSC1L
or
V
CLKINL
V
OSC1H
or
V
CLKINH
t
r(OSC1 or CLKIN))
t
f(OSC1
or
CLKIN)
t
w(OSC1H
or
CLKINH))
t
w(OSC1L
or
CLKINL)
I
L
90%
10%
Symbol
f
AWU
t
RCSRT
Parameter
1)
Conditions
Min
50
Typ
125
Max
250
50
Unit
kHz
μs
AWU Oscillator Frequency
AWU Oscillator startup time
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