DS1558W+ Maxim Integrated Products, DS1558W+ Datasheet - Page 17

• Manufacturer Part Number: DS1558W+
• Description: IC RTC W/NV RAM 3.3V 48-LQFP
• Manufacturer: Maxim Integrated Products
• Type: Watchdog Timer/NVSRAMr

Specifications of DS1558W+

• 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 9. +3.3V POWER-UP/DOWN WAVEFORM TIMING
CAPACITANCE
(T
Before Power-Down
V
V
V
CE
Capacitance On All Input Pins
Capacitance On
DQ Pins
A
CC
CC
CC
PF
= +25C)
to
= +3.3V 10%, T
or
Fall Time: V
Rise Time: V
RST
WE
PARAMETER
at V
High
PARAMETER

IH
IRQ
PF(MAX)
PF(MIN)
,
/FT,
to V
to V
A
= -40°C to +85°C.) (Figure 9)
RST
PF(MAX)
PF(MIN)
, and
SYMBOL
SYMBOL
C
C
IN
IO
t
t
REC
t
t
PD
R
F
17 of 18
MIN
MIN
300
40
0
0
TYP
TYP
MAX
MAX
10
7
200
UNITS
UNITS
pF
pF
ms
s
s
s
NOT
NOTES
1
1
ES