m48t201v STMicroelectronics, m48t201v Datasheet - Page 29

• Manufacturer Part Number: m48t201v
• Description: 5.0 Or 3.3v Timekeeper Supervisor
• Manufacturer: STMicroelectronics

Figure 14. Power down/up mode AC waveforms
Table 14.
1. Valid for Ambient Operating Temperature: T
2. V
3. V
Symbol
V
t
t
t
FB
PFD
CC
PFD
REC
t
F
t
RB
R
(2)
(3)
passes V
(min) to V
(max) to V
V CC
V PFD (max)
V PFD (min)
V SO
INPUTS
OUTPUTS
RST
V
V
V
V
V
Power down/up mode AC characteristic
PFD
PFD
PFD
PFD
SS
PFD
SS
PFD
to V
(min) to V
(max) to V
(min) to V
(max) to RST High
(min).
fall time of less than t
(min) fall time of less than t
PFD
(min) V
VALID
VALID
PFD
SS
PFD
tF
V
(max) V
CC
CC
(min) V
Fall Time
Rise Time
FB
Parameter
may cause corruption of RAM data.
CC
CC
A
= 0 to 70°C; V
Rise Time
Fall Time
F
tFB
may result in deselection/write protection not occurring until 200µs after
(1)
CC
= 4.5 to 5.5V or 3.0 to 3.6V (except where noted).
M48T201Y
M48T201V
DON'T CARE
HIGH-Z
tRB
Min
300
150
10
10
40
5
tR
Max
tREC
200
VALID
VALID
AI03519
Unit
ms
µs
µs
µs
µs
µs
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