ST72521M7 查看數據表（PDF） - STMicroelectronics
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ST72521M7
STMicroelectronics
ST72521M7 Datasheet PDF : 199 Pages
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ST72521M/R/AR
CONTROL PIN CHARACTERISTICS (Cont’d)
12.9.2 ICCSEL/VPP Pin
Subject to general operating conditions for VDD, fCPU, and TA unless otherwise specified.
Symbol
Parameter
Conditions
Min Max Unit
VIL
Input low level voltage 1)
VIH
Input high level voltage 1)
IL
Input leakage current
FLASH versions
ROM versions
FLASH versions
ROM versions
VIN=VSS
VSS
0.2
VSS 0.3xVDD
V
VDD-0.1 12.6
0.7xVDD VDD
±1
µA
Figure 105. Two typical Applications with ICCSEL/VPP Pin 2)
ICCSEL/VPP
ST72XXX
PROGRAMMING
TOOL
VPP
10kΩ
ST72XXX
Notes:
1. Data based on design simulation and/or technology characteristics, not tested in production.
2. When ICC mode is not required by the application ICCSEL/VPP pin must be tied to VSS.
12.10 TIMER PERIPHERAL CHARACTERISTICS
Subject to general operating conditions for VDD, fOSC, and TA unless otherwise specified.
Refer to I/O port characteristics for more details on the input/output alternate function characteristics (out-
put compare, input capture, external clock, PWM output...).
12.10.1 8-Bit PWM-ART Auto-Reload Timer
Symbol
Parameter
tres(PWM) PWM resolution time
fEXT
fPWM
ResPWM
VOS
ART external clock frequency
PWM repetition rate
PWM resolution
PWM/DAC output step voltage
Conditions
fCPU=8MHz
VDD=5V, Res=8-bits
Min
Typ
Max
Unit
1
tCPU
125
ns
0
fCPU/2
MHz
0
fCPU/2
8
bit
20
mV
12.10.2 16-Bit Timer
Symbol
Parameter
tw(ICAP)in Input capture pulse time
tres(PWM) PWM resolution time
fEXT
fPWM
ResPWM
Timer external clock frequency
PWM repetition rate
PWM resolution
Conditions
fCPU=8MHz
Min
Typ
Max
Unit
1
tCPU
2
tCPU
250
ns
0
fCPU/4
MHz
0
fCPU/4
MHz
16
bit
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