Specifications

DS12885/DS12887/DS12887A/DS12C887/DS12C887A
Real-Time Clocks
____________________________________________________________________ 21
PACKAGE THETA-JA (°C/W) THETA-JC (°C/W)
PDIP 75 30
SO 105 22
PLCC 95 25
Thermal Information
Chip Information
PROCESS: CMOS
SUBSTRATE CONNECTED TO GROUND
TQFP
TOP VIEW
32 28
293031
25
26
27
X2 X1 MOT V
CC
N.C. N.C. SQW N.C.
10
13
15
14
1611 12
9
AD6 AD7
N.C.
CS
GND
N.C.
AS
R/W
17
18
19
20
21
22
23
N.C.
24 RCLR
V
BAT
IRQ
N.C.
RESET
DS
GND
2
3
4
5
6
7
8AD5
AD4
N.C.
AD3
N.C.
AD2
AD1
1AD0
DS12885T
Pin Configurations (continued)
Ordering Information
PART TEMP RANGE PIN-PACKAGE TOP MARK*
DS12885+ 0°C to +70°C 24 PDIP DS12885
DS12885N+ -40°C to +85°C 24 PDIP DS12885
DS12885Q+ 0°C to +70°C 28 PLCC DS12885Q
DS12885QN+ -40°C to +85°C 28 PLCC DS12885Q
DS12885Q+T&R 0°C to +70°C 28 PLCC DS12885Q
DS12885QN+T&R -40°C to +85°C 28 PLCC DS12885Q
DS12885S+ 0°C to +70°C 24 SO (300 mils) DS12885S
DS12885SN+ -40°C to +85°C 24 SO (300 mils) DS12885S
DS12885S+T&R 0°C to +70°C 24 SO (300 mils) DS12885S
DS12885T+ 0°C to +70°C 32 TQFP DS12885
DS12885TN+ -40°C to +85°C 32 TQFP DS12885
DS12887+ 0°C to +70°C 24 EDIP DS12887
DS12887A+ 0°C to +70°C 24 EDIP DS12887A
DS12C887+ 0°C to +70°C 24 EDIP DS12C887
DS12C887A+ 0°C to +70°C 24 EDIP DS12C887AA
+ Denotes a lead(Pb)-free/RoHS-compliant package.
T&R = Tape and reel.
*A “+” anywhere on the top mark indicates a lead(Pb)-free device, and an “N” indicates an industrial temperature range device.
PACKAGE TYPE PACKAGE CODE DOCUMENT NO.
24 SO W24+1
21-0042
24 PDIP P24+4
21-0044
24 EDIP MDP24+1
21-0241
28 PLCC Q28+13
21-0049
32 TQFP C32+3
21-0292
Package Information
For the latest package outline information and land patterns,
go to www.maxim-ic.com/packages
. Note that a “+”, “#”, or
“-” in the package code indicates RoHS status only. Package
drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.