Watchdog Timekeeping Controller
DS1384 Watchdog Timekeeping Controller
www.maxim-ic.com
FEATURES
Keeps Track of Hundredths of Seconds, Seconds, Minute...
Description
DS1384 Watchdog Timekeeping Controller
www.maxim-ic.com
FEATURES
Keeps Track of Hundredths of Seconds, Seconds, Minutes, Hours, Days, Date of the Month, Months, and Years with Leap Year Compensation Valid Up to 2100
Watchdog Timer Restarts an Out-ofControl Processor
Alarm Function Schedules Real-Time Related Activities
Programmable Interrupts and SquareWave Outputs
Bytewide RAM-Like Access
50 Bytes of On-Board User RAM
Greater Than 10 Years Timekeeping and Data Retention in the Absence of Power with Small Lithium Coin Cells
Supports Up to 128k x 8 of External Static RAM
All Timekeeping Registers and On-Board RAM are Individually Addressable via the Address and Data Bus
PIN CONFIGURATION
TOP VIEW
44
1 INTB/(INTB)
N.C. A14 A12 A7 A6 A5
A4 A3 A2 A1
11 12
DS1384
MQFP
A0 DQ0 DQ1 DQ2 GND DQ3 DQ4 DQ5 DQ6 DQ7 CEO
GND X1 X2 GND A16 INTA VCC VCCO SQW PFO VBAT2
34
33
23 22
A15 VBAT1 WE A13 A8
A9 A11 OE A10 CE OE
ORDERING INFORMATION
PART
TEMP RANGE
DS1384FP-12
0°C to +70°C
DS13...
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