DS1248Y-70 Maxim Integrated Products, DS1248Y-70 Datasheet - Page 11
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DS1248Y-70
Manufacturer Part Number
DS1248Y-70
Description
Real Time Clock
Manufacturer
Maxim Integrated Products
Datasheet
1.DS1248W-120.pdf
(18 pages)
Specifications of DS1248Y-70
Function
Clock, Calendar, NV Timekeeping RAM, Battery Backup
Rtc Memory Size
131072 B
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.5 V
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Mounting Style
Through Hole
Rtc Bus Interface
Phantom Clock, Parallel
Package / Case
eDIP
Time Format
HH:MM:SS:hh
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DS1248Y-70
Manufacturer:
DALLAS
Quantity:
22
Company:
Part Number:
DS1248Y-70+
Manufacturer:
Maxim Integrated Products
Quantity:
135
Company:
Part Number:
DS1248Y-70+
Manufacturer:
JST
Quantity:
500
Part Number:
DS1248Y-70+
Manufacturer:
DALLAS
Quantity:
20 000
Company:
Part Number:
DS1248Y-70IND+
Manufacturer:
Maxim
Quantity:
10
PHANTOM CLOCK AC ELECTRICAL CHARACTERISTICS
Over the Operating Range (5V)
Read Cycle Time
CE Access Time
OE Access Time
CE to Output Low-Z
OE to Output Low-Z
CE to Output High-Z
OE to Output High-Z
Read Recovery
Write Cycle Time
Write Pulse Width
Write Recovery
Data Setup Time
Data Hold Time
CE Pulse Width
RST Pulse Width
POWER-DOWN/POWER-UP TIMING
Over the Operating Range (3.3V)
CE at V
V
V
V
V
V
CE at V
(T
Expected Data-Retention Time
Warning: Under no circumstances are negative undershoots of any amplitude allowed when device
is in battery-backup mode.
CC
PF(min)
CC
CC
PF(min)
A
= +25°C)
Slew from V
Slew from V
Slew from V
( CE at V
(CE at V
IH
IH
PARAMETER
PARAMETER
PARAMETER
before Power-Down
after Power-Up
PF
PF
PF(max)
PF(min)
PF(max)
)
)
to V
to
to
SO
SYMBOL
SYMBOL
SYMBOL
t
t
t
t
t
t
t
t
t
t
t
t
t
t
ODO
t
t
COE
t
t
t
OEE
REC
RST
WC
WR
CW
OD
WP
DH
t
RC
CO
OE
RR
t
DR
DS
PD
FB
R
F
11 of 18
MIN
MIN
MIN
300
1.5
65
10
65
55
10
30
60
65
10
10
5
5
0
0
0
TYP
TYP
TYP
MAX
MAX
MAX
2.5
55
55
25
25
UNITS
UNITS
UNITS
years
ms
s
s
s
s
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES
NOTES
NOTES
10
5
5
3
4
4
9