DS1558W Maxim Integrated Products, DS1558W Datasheet - Page 13
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DS1558W
Manufacturer Part Number
DS1558W
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
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
Contains lead / RoHS non-compliant
Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DS1558W+
Manufacturer:
Maxim
Quantity:
250
Part Number:
DS1558W+
Manufacturer:
MAXIM/美信
Quantity:
20 000
Company:
Part Number:
DS1558W+T&R
Manufacturer:
ATMEL
Quantity:
6 772
Company:
Part Number:
DS1558W+TRL
Manufacturer:
Maxim Integrated
Quantity:
10 000
Company:
Part Number:
DS1558W-TRL
Manufacturer:
Maxim Integrated
Quantity:
10 000
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