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M41T00S Datasheet(PDF) 20 Page - STMicroelectronics

Part # M41T00S
Description  Serial access real-time clock
PDF  26 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41T00S Datasheet(HTML) 20 Page - STMicroelectronics

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DC and AC parameters
M41T00S
20/26
Table 9.
Power down/up AC characteristics
Table 10.
Power down/up trip points DC characteristics
Figure 14.
Bus timing requirements sequence
Symbol
Parameter(1)(2)
1.
VCC fall time should not exceed 5 mV/µs.
2.
Valid for ambient operating temperature: TA = –40 to 85°C; VCC = 2.7 to 5.5 V (except where noted).
Min
Typ
Max
Unit
tPD
SCL and SDA at VIH before power down
0
nS
trec
SCL and SDA at VIH after power up
10
µS
Sym
Parameter(1)(2)
1.
All voltages referenced to VSS.
2.
Valid for ambient operating temperature: TA = –40 to 85°C; VCC = 2.7 to 5.5 V (except where noted).
Min
Typ
Max
Unit
VPFD
Power-fail deselect
2.5
2.6
2.7
V
Hysteresis
25
mV
VSO
Battery backup switchover voltage
(VCC < VBAT; VCC < VPFD)
VBAT < VPFD
VBAT
V
VBAT > VPFD
VPFD
V
Hysteresis
40
mV
AI00589
SDA
P
tSU:STO
tSU:STA
tHD:STA
SR
SCL
tSU:DAT
tF
tHD:DAT
tR
tHIGH
tLOW
tHD:STA
tBUF
S
P



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