m48t212a STMicroelectronics, m48t212a Datasheet - Page 6

• Manufacturer Part Number: m48t212a
• Description: 3.3v Timekeeper Controller
• Manufacturer: STMicroelectronics

M48T212A
Figure 5. Power Down/Up AC Waveform
Table 8. Power Down/Up AC Characteristics
(T
6/20
A
Symbol
= 0 to 70°C)
t
REC
t
t
t
RB
t
FB
R
F
V CC
V PFD (max)
V PFD (min)
V SO
INPUTS
OUTPUTS
RST
V CCSW
V
V
V
V
V
PFD
PFD
PFD
PFD
SS
to V
(min) to V
(max) to V
(min) to V
(max) to RST High
PFD
(min) V
VALID
VALID
PFD
SS
PFD
tF
V
(max) V
CC
CC
(min) V
Fall Time
Rise Time
Parameter
CC
CC
Fall Time
Rise Time
tFB
DON'T CARE
HIGH-Z
tRB
Min
300
150
10
40
5
tR
Max
200
tREC
VALID
VALID
AI02638
Unit
ms
µs
µs
µs
µs