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M41T81S 데이터시트(PDF) 22 Page - STMicroelectronics

부품명 M41T81S
상세설명  Serial Access Real-Time Clock with Alarms
PDF  29 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41T81S 데이터시트(HTML) 22 Page - STMicroelectronics

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Figure 17. Power Down/Up Mode AC Waveforms
Table 11. Power Down/Up AC Characteristics
Note: 1. VCC fall time should not exceed 5mV/µs.
2. Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 2.7 to 5.5V (except where noted).
Table 12. Power Down/Up Trip Points DC Characteristics
Note: 1. All voltages referenced to VSS.
2. Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 2.7 to 5.5V (except where noted).
Symbol
Parameter(1,2)
Min
Typ
Max
Unit
tPD
SCL and SDA at VIH before Power Down
0nS
trec
SCL and SDA at VIH after Power Up
10
µS
Sym
Parameter(1,2)
Min
Typ
Max
Unit
VPFD
Power-fail Deselect
2.5
2.6
2.7
V
Hysteresis
25
mV
VSO
Battery Back-up Switchover Voltage
(VCC < VBAT; VCC < VPFD)
VBAT < VPFD
VBAT
V
VBAT > VPFD
VPFD
V
Hysteresis
40
mV
AI00596
VCC
trec
tPD
VSO
SDA
SCL
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