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M41T81 датащи(PDF) 24 Page - STMicroelectronics

номер детали M41T81
подробное описание детали  Serial access Real-Time Clock with alarm
PDF  30 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41T81 датащи(HTML) 24 Page - STMicroelectronics

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DC and AC parameters
M41T81
24/30
Figure 16.
Bus timing requirements sequence
Table 11.
Power down/up AC characteristics
Symbol
Parameter(1) (2)
1.
VCC fall time should not exceed 5mV/µs.
2.
Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 2.0 to 5.5V (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
Table 12.
Power down/up trip points DC characteristics
Sym
Parameter(1) (2)
1.
All voltages referenced to VSS.
2.
Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 2.0 to 5.5V (except where noted).
Min
Typ
Max
Unit
VSO
Battery back-up switchover voltage
VBAT – 0.80 VBAT – 0.50 VBAT – 0.30
V
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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