DS1558W+TRL Maxim Integrated Products, DS1558W+TRL Datasheet - Page 16
![IC RTC W/NV RAM 3.3V 48-LQFP](/photos/6/55/65521/48-lqfp_21-0054f_sml.jpg)
DS1558W+TRL
Manufacturer Part Number
DS1558W+TRL
Description
IC RTC W/NV RAM 3.3V 48-LQFP
Manufacturer
Maxim Integrated Products
Type
Watchdog Timer/NVSRAMr
Datasheet
1.DS1558W.pdf
(18 pages)
Specifications of DS1558W+TRL
Time Format
HH:MM:SS (24 hr)
Date Format
YY-MM-DD-dd
Interface
Parallel
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
48-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Memory Size
-
POWER-UP/DOWN CHARACTERISTICS
(V
Figure 8. +5V POWER-UP/DOWN WAVEFORM TIMING
Before Power-Down
V
V
V
V
CE
C
CC
CC
CC
PF
C
to
= +5V 10%
or
Fall Tim
Fall Time: V
Rise Time: V
RST
WE
P
at V
High
e: V
ARAMETE
IH
PF(MAX)
PF(MIN)
PF(MIN)
,
, T
A
to V
to
to
= -40°C o +85°C.) (Figure 8)
R
V
V
SO
PF(
PF(
MIN)
MAX)
t
SYMBOL
t
t
t
REC
t
t
PD
FB
R
F
16 of 18
M
300
10
40
0
0
IN
TYP
MAX
200
UNITS
ms
s
s
s
s
NOTES