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STR750FXX 데이터시트(PDF) 45 Page - STMicroelectronics

부품명 STR750FXX
상세설명  ARM7TDMI-S??32-bit MCU with Flash, SMI, 3 std 16-bit timers, PWM timer, fast 10-bit ADC, I2C, UART, SSP, USB and CAN
PDF  84 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STR750FXX 데이터시트(HTML) 45 Page - STMicroelectronics

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Electrical parameters
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XRTC1 external clock source
Subject to general operating conditions for VDD_IO, and TA.
Figure 20.
Typical application with an external clock source
Table 21.
XRTC1 external clock source
Symbol
Parameter
Conditions(1)
1.
Data based on typical application software.
Min
Typ
Max
Unit
fXRTC1
External clock source
frequency
see Figure 20
32.768
500
kHz
VXRTC1H
XRTC1 input pin high
level voltage
0.7xVDD_IO
VDD_IO
V
VXRTC1L
XRTC1 input pin low
level voltage
VSS
0.3xVDD_IO
tw(XRTC1H)
tw(XRTC1L)
XRTC1 high or low
time(2)
2.
Data based on design simulation and/or technology characteristics, not tested in production.
900
ns
tr(XRTC1)
tf(XRTC1)
XRTC1 rise or fall time(2)
50
IL
XRTCx Input leakage
current
VSS≤VIN≤VDD_I
O
±1
μA
CIN(RTC1)
XRTC1 input
capacitance(2)
5pF
DuCy(RTC1) Duty cycle
30
70
%
XT1
XT2
fOSC4M
EXTERNAL
STR750
CLOCK SOURCE
VXT1L
VXT1H
tr(XT1)
tf(XT1)
tw(XT1H)
tw(XT1L)
IL
90%
10%
TXT1
hi-Z



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