DS1315
Phantom Time Chip
www.dalsemi.com
FEATURES
搂
Real time clock keeps track of hundredths of
seconds, seconds, minutes, hours, days, date
of the month, months, and years
搂
Adjusts for months with fewer than 31 days
搂
Automatic leap year correction valid up to
2100
搂
No address space required to communicate
with RTC
搂
Provides nonvolatile controller functions for
battery backup of SRAM
搂
Supports redundant battery attachment for
high鈥搑eliability applications
搂
Full 卤10% V
CC
operating range
搂
+3.3 volt or +5 volt operation
搂
Industrial (鈥?5掳C to +85掳C) operating
temperature ranges available
搂
Drop in replacement for DS1215
PIN ASSIGNMENT
X1
X2
WE
BAT1
GND
D
Q
GND
1
2
3
4
5
6
7
8
16-Pin DIP (300-mil)
X1
X2
WE
BAT1
GND
D
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC1
V
CC0
BAT2
RST
OE
CEI
CEO
ROM/RAM
16
15
14
13
12
11
10
9
V
CC1
V
CC0
BAT2
RST
OE
CEI
CEO
ROM/RAM
ORDERING INFORMATION
{
33-3.3 volt operation
5-5 volt operation
blank-commercial temp range
N-industrial temp range
DS1315XX-XX
Q
GND
16-Pin SOIC (300-mil)
X1
1
2
3
4
5
6
7
8
9
10
20-Pin TSSOP
20
19
18
17
16
15
14
13
12
11
V
CC1
V
CC0
BAT2
NC
RST
OE
NC
CEI
CEO
ROM/RAM
blank-16-pin DIP
S-16-pin SOIC
E-20-pin TSSOP
X2
WE
NC
BAT1
GND
NC
D
Q
GND
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