DS1244Y-70 Maxim Integrated Products, DS1244Y-70 Datasheet - Page 12

• Manufacturer Part Number: DS1244Y-70
• Description: Real Time Clock
• Manufacturer: Maxim Integrated Products

Specifications of DS1244Y-70

• Function: Clock, Calendar, NV SRAM Control
• Rtc Memory Size: 32768 B
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Rtc Bus Interface: Phantom Clock, Parallel
• Package / Case: EMOD
• Time Format: HH:MM:SS:hh
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MEMORY AC ELECTRICAL CHARACTERISTICS
Read Cycle Time
Access Time
Output High-Z from Deselection
Output Hold from Address Change
Write Cycle Time
Write Pulse Width
Address Setup Time
Write Recovery Time
Output High-Z from
Output Active from
Data Setup Time
Data Hold Time from
PHANTOM CLOCK AC ELECTRICAL CHARACTERISTICS
Read Cycle Time
Read Recovery
Write Cycle Time
Write Pulse Width
Write Recovery
Data Setup Time
Data Hold Time
OE
CE
OE
CE
OE
CE
OE
CE
OE
CE
RESET
to Output Valid
to Output Valid
or
Access Time
Access Time
to Output Low-Z
to Output Low-Z
to Output High-Z
to Output High-Z
Pulse Width
CE
Pulse Width
PARAMETER
PARAMETER
to Output Active
WE
WE
WE
SYMBOL
SYMBOL
t
t
t
t
t
t
t
t
t
t
t
t
ODO
t
t
t
COE
OEE
RST
WC
WR
CW
WP
RC
CO
OE
OD
RR
DH
DS
t
t
t
t
t
t
t
t
t
t
ODW
OEW
t
t
t
t
ACC
COE
t
WC
AW
WR
OD
OH
WP
DH
RC
OE
CO
DS
MIN
120
120
100
105
120
12 of 19
20
20
45
5
5
0
MIN
120
120
90
20
50
20
DS1244W-120
5
5
0
5
TYP
MAX
120
120
Over the operating range (3.3V)
60
40
40
Over the operating range (3.3V)
MAX
100
100
40
40
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTES
NOTES
10
5
5
3
5
5
4
4
10
5
5
3
4
4