參數(shù)資料
型號: ST72651R6T1
英文描述: ST7 - LOW-POWER. FULL-SPEED USB 8-BIT MCU WITH 32K FLASH. 5K RAM. FLASH CARD I/F. TIMER. PWM. ADC. I2C
中文描述: ST7的-低功耗。全速USB 8位32K快閃微控制器。 5K內(nèi)存。閃存卡的I /樓計時器。脈寬調(diào)制。 ADC的。的I2C
文件頁數(shù): 41/166頁
文件大小: 2089K
代理商: ST72651R6T1
ST7265x
135/166
13.5 CLOCK AND TIMING CHARACTERISTICS
Subject to general operating conditions for VDD, fOSC, and TA.
13.5.1 General Timings
13.5.2 External Clock Source
Figure 77. Typical Application with an External Clock Source
Notes:
1. Data based on typical application software. Not tested in production.
2. Time measured between interrupt event and interrupt vector fetch.
t
c(INST) is the number of tCPU cycles needed to finish
the current instruction execution.
3. Data based on design simulation and/or technology characteristics, not tested in production.
Symbol
Parameter
Conditions
Min
Typ 1)
Max
Unit
tc(INST)
Instruction cycle time
2
4
12
tCPU
fCPU=8MHz
250
500
1500
ns
tv(IT)
Interrupt reaction time 2)
tv(IT) = tc(INST) + 10
10
22
tCPU
fCPU=8MHz
1.25
2.75
s
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VOSC1H
OSC1 input pin high level voltage
0.7xVDD
VDD
V
VOSC1L
OSC1 input pin low level voltage
VSS
0.3xVDD
tw(OSC1H)
tw(OSC1L)
OSC1 high or low time 3)
15
ns
tr(OSC1)
tf(OSC1)
OSC1 rise or fall time 3)
15
IL
OSCx Input leakage current
VSS≤VIN≤VDD
±1
A
OSC1
OSC2
fOSC
EXTERNAL
ST72XXX
CLOCK SOURCE
Not connected internally
VOSC1L
VOSC1H
tr(OSC1)
tf(OSC1)
tw(OSC1H)
tw(OSC1L)
IL
90%
10%
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