DS1558W+ Maxim Integrated Products, DS1558W+ Datasheet - Page 14

• 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: -

WRITE CYCLE, AC CHARACTERISTIC
(V
Write Cycle Tim e
Address Access T
Data Setup Time
Data Hold Time
Data Hold Time
Address Hold Time
Address Hold Time
Write Recovery Tim
CE
WE
WE
CC
Pulse Width
= +
Pulse Width
Data Off Ti
PARAMETER
3.3V ±10% or
me
im
e
e
+5V ±10%
SYMBO
t
t
t
t
t
t
t
WEW
t
t
t
CEW
WEZ
t
DH1
DH2
AH1
AH2
WC
WR
AS
DS
, T
L
A
= -4 C to
V
CC
MIN
0°
70
50
60
30
0
5
5
5
5
5
= +5.0V ±10%
14 of 18
S
+8
M X
5°C. (Figu e 6 an Figure
25
A
)
V
CC
MIN
120
100
110
80
10
0
5
5
0
5
r
= +3.3V ±1
d
MAX
40
0%
UNITS
7)
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES
8
9
8
9