DS17285_1 Datasheet, PDF (30/31 Pages) Maxim Integrated Products – Real-Time Clocks

Real-Time Clocks
Typical Operating Circuit
VCC
CRYSTAL
VCC
DS83C520
X1
X2
VCC
IRQ
ALE
SQW
WR _DS17285
RD ^{DS17485 RCLR}
DS17885
CS
KS
AD0–AD7
VSB
VBAUX
SUPPLY
CONTROL
PWR
CIRCUIT
VCC
GND ^VBAT
Thermal Information
PACKAGE
DIP
SO
THETA-JA (°C/W)
75
105
THETA-JC (°C/W)
30
22
Chip Information
SUBSTRATE CONNECTED TO GROUND
PROCESS: CMOS
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.
PACKAGE TYPE
DOCUMENT NO.
24 PDIP (600 mils)
21-0044
24 SO (300 mils)
21-0042
24 EDIP
21-0241
28 TSOP
21-0273
30 ____________________________________________________________________