MC146818P vs DS1287 feature comparison

MC146818P Motorola Semiconductor Products

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DS1287 Dallas Semiconductor

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Rohs Code No No
Part Life Cycle Code Obsolete Obsolete
Ihs Manufacturer MOTOROLA INC DALLAS SEMICONDUCTOR
Package Description DIP, DIP-18
Reach Compliance Code unknown unknown
ECCN Code EAR99 EAR99
HTS Code 8542.39.00.01 8542.39.00.01
Bus Compatibility 8085; 8048; 8049; MC3870; MC6805; MC146805; S2000; 8021
Clock Frequency-Max 0.032 MHz 0.032 MHz
External Data Bus Width 8 8
Information Access Method PARALLEL, MUXED BUS PARALLEL, MUXED BUS
JESD-30 Code R-PDIP-T24 R-PDIP-T18
JESD-609 Code e0 e0
Length 31.75 mm
Number of Terminals 24 18
Number of Timers 1
On Chip Data RAM Width 8 8
Operating Temperature-Max 70 °C 70 °C
Operating Temperature-Min
Output Clock Frequency-Max 0.032768 MHz 0.008192 MHz
Package Body Material PLASTIC/EPOXY PLASTIC/EPOXY
Package Code DIP DIP
Package Shape RECTANGULAR RECTANGULAR
Package Style IN-LINE IN-LINE
Qualification Status Not Qualified Not Qualified
RAM (words) 50 50
Seated Height-Max 5.08 mm
Supply Current-Max 3 mA 15 mA
Supply Voltage-Max 5.25 V 5.5 V
Supply Voltage-Min 4.5 V 4.5 V
Supply Voltage-Nom 5 V 5 V
Surface Mount NO NO
Technology CMOS CMOS
Temperature Grade COMMERCIAL COMMERCIAL
Terminal Finish TIN LEAD TIN LEAD
Terminal Form THROUGH-HOLE THROUGH-HOLE
Terminal Pitch 2.54 mm 2.54 mm
Terminal Position DUAL DUAL
Width 15.24 mm
uPs/uCs/Peripheral ICs Type TIMER, REAL TIME CLOCK TIMER, REAL TIME CLOCK
Base Number Matches 1 2
Additional Feature DAYLIGHT SAVINGS OPTION; SELECTABLE MOTOROLA/INTEL TIMING; 10 YEARS DATA RETENTION
Interrupt Capability Y
Package Equivalence Code DIP24,.6
Time-Min SECONDS
Volatile NO

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