DS1558W+ Maxim Integrated Products, DS1558W+ Datasheet - Page 13

• 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: -

READ CYCLE, AC CHARACTERISTICS
(V
Figure 5. READ CYCLE TIMING DIAGRAM
Read Cycle Time
Address Access Time
Output Hold from Address
Delay, +5V
Delay, +5V
Delay, +3.3V
Delay, +3.3V
CE
CE
CE
OE
OE
OE
CE
OE
CE
OE
CC
= +3.3V ±10% or +5V ±10%, T = -40°C to +85°C.) (Figure 5)
to DQ Low-Z
Acce
Data Off
to DQ Low-Z
Access Time
Data Off Time
to
to
to
to
PARAMETER
CER
OER
CER
OER
ss Time
Propagation
Propagation
Propagation
Propagation
Time
SYMBOL
t
t
t
t
t
t
t
t
t
t
CEPD
OEPD
CEPD
OEPD
t
t
t
OEA
CEL
CEA
CEZ
OEL
O
AA
OH
RC
EZ
A
V
MIN
CC
70
5
5
5
= +5.5V ±10%
13 of 18
MAX
70
7
25
35
25
15
20
30
40
0
V
MIN
CC
120
5
5
5
= +3.3V ±10%
MAX
120
120
100
40
35
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES