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M48T201Y датащи(PDF) 30 Page - STMicroelectronics

номер детали M48T201Y
подробное описание детали  5.0 or 3.3 V TIMEKEEPER® supervisor
PDF  37 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M48T201Y датащи(HTML) 30 Page - STMicroelectronics

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DC and AC parameters
M48T201Y, M48T201V
30/37
Figure 14.
Power down/up mode AC waveforms
Table 14.
Power down/up mode AC characteristic
Symbol
Parameter(1)
1.
Valid for ambient operating temperature: TA = 0 to 70°C; VCC = 4.5 to 5.5 V or 3.0 to 3.6 V (except where noted).
Min
Max
Unit
tF
(2)
2.
VPFD (max) to VPFD (min) fall time of less than tF may result in deselection/write protection not occurring until 200 µs after
VCC passes VPFD (min).
VPFD (max) to VPFD (min) VCC fall time
300
µs
tFB
(3)
3.
VPFD (min) to VSS fall time of less than tFB may cause corruption of RAM data.
VPFD (min) to VSS VCC fall time
M48T201Y
10
µs
M48T201V
150
µs
tR
VPFD (min) to VPFD (max) VCC rise time
10
µs
tREC
VPFD (max) to RST high
40
200
ms
tRB
VSS to VPFD (min) VCC rise time
5
µs
AI03519
VCC
INPUTS
RST
OUTPUTS
DON'T CARE
HIGH-Z
tF
tFB
tR
tREC
tRB
VALID
VALID
VPFD (max)
VPFD (min)
VSO
VALID
VALID



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