DS14285 Maxim Integrated Products, DS14285 Datasheet - Page 22
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DS14285
Manufacturer Part Number
DS14285
Description
IC RTC W/NV RAM CNTRL 24-DIP
Manufacturer
Maxim Integrated Products
Type
Clock/Calendar/NVSRAMr
Datasheet
1.DS14285Q.pdf
(26 pages)
Specifications of DS14285
Memory Size
114B
Time Format
HH:MM:SS (12/24 hr)
Date Format
YY-MM-DD-dd
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
24-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DS14285
Manufacturer:
KEMET
Quantity:
2 000
Company:
Part Number:
DS14285S
Manufacturer:
DALLAS
Quantity:
14
Part Number:
DS14285S
Manufacturer:
MAXIM/美信
Quantity:
20 000
POWER-DOWN/POWER-UP TIMING
POWER-DOWN/POWER-UP TIMING
(T
NOTE: The RTC keeps time to an accuracy of +1 minute per month during
data retention time for the period of t
WARNING: Under no circumstances are negative undershoots, of any
amplitude, allowed when device is in battery-backup mode.
V
V
Chip-Enable Propagation Delay to
External SRAM
Expected Data Retention for DS14287
CS
CS
A
CC
CC
= +25°C)
at V
at V
slew from 4.5V to 0V (
slew from 0V to 4.5V (
IH
IH
before Power-Down
after Power-Up
PARAMETER
PARAMETER
CS
CS
at V
at V
IH
IH
)
)
SYMBOL
SYMBOL
t
t
t
t
CED
REC
t
t
DR
PD
F
R
22 of 26
DR
.
MIN
MIN
300
100
20
10
0
TYP
TYP
MAX
MAX
200
10
UNITS
UNITS
years
ms
µs
µs
µs
ns
NOTES
NOTES
10