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M41ST85W Folha de dados(PDF) 27 Page - STMicroelectronics

Nome de Peças M41ST85W
Descrição Electrónicos  3.0/3.3V I2C Combination Serial RTC, NVRAM Supervisor and Microprocessor Supervisor
PDF  34 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41ST85W Folha de dados(HTML) 27 Page - STMicroelectronics

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M41ST85W
Figure 22. Power Down/Up Mode AC Waveforms
Table 13. Power Down/Up AC Characteristics
Note: 1. Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 2.7 to 3.6V (except where otherwise noted).
2. VPFD(max) to VPFD(min) fall time of less than tF may result in deselection/write protection not occurring until
200µs after VCC passes VPFD(min).
3. VPFD(min) to VSS fall time of less than tFB may cause corruption of RAM data.
4. Programmable (see Table 6., page 22)
Symbol
Parameter(1)
Min
Typ
Max
Unit
tF
(2)
VPFD(max) to VPFD(min) VCC Fall Time
300
µs
tFB
(3)
VPFD(min) to VSS VCC Fall Time
10
µs
tPD
EX at VIH before Power Down
0µs
tPFD
PFI to PFO Propagation Delay
15
25
µs
tR
VPFD(min) to VPFD(max) VCC Rise Time
10
µs
tRB
VSS to VPFD(min) VCC Rise Time
1µs
trec
(4)
Power up Deselect Time
40
200
ms
AI03661
VCC
INPUTS
(PER CONTROL INPUT)
OUTPUTS
DON'T CARE
HIGH-Z
tF
tFB
tR
tPD
tRB
tDR
VALID
VALID
(PER CONTROL INPUT)
RECOGNIZED
RECOGNIZED
VPFD (max)
VPFD (min)
VSO
trec
RST
ECON
PFO



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