DS1283
Dallas Semiconductor
Watchdog Timekeeper ChipDS1283
DS1283 Watchdog Timekeeper Chip
FEATURES
PIN ASSIGNMENT
INTA X1 X2 NC A5 A4 A3 A2 A1 A0 DQ0 DQ1 DQ2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 V CC WE INTB(INTB) V BAT
• Keeps track of hundredths of seconds, sec
DS1245W
3.3V 1024k Nonvolatile SRAMDS1245W 3.3V 1024k Nonvolatile SRAM
www.dalsemi.com
FEATURES
10 years minimum data retention in the absence of external power Data is automatically protected during power loss Replaces 128k x 8 volatile static RAM, EEPROM or Flash memory Unlimited write cycles Low-power CMOS Read and write access t
Dallas Semiconducotr
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DS1244
Low-Power / 24-Bit ANALOG-TO-DIGITAL CONVERTERADS1244
ADS1 244
SBAS273 – DECEMBER 2002
Low-Power, 24-Bit ANALOG-TO-DIGITAL CONVERTER
FEATURES
q 20-BIT EFFECTIVE RESOLUTION q CURRENT CONSUMPTION: 90µA q ANALOG SUPPLY: 2.5V to 5.25V q DIGITAL SUPPLY: 1.8V to 3.6V q ±5V DIFFERENTIAL INPUT RANGE q 0.0002% INL (TYP), 0.0008% INL (MAX) q SIMPLE
Burr-Brown Corporation
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