 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
DS14285N Datasheet(PDF) 1 Page - Dallas Semiconductor |
|
||||||||||||||||||||||||||||||
DS14285N Datasheet(HTML) 1 Page - Dallas Semiconductor |
|
|
1 / 25 page  1 of 25 080400 FEATURES Direct replacement for IBM AT computer clock/calendar Functionally compatible with the DS1285/DS1287 Available as chip (DS14285, DS14285S, or DS14285Q) or stand-alone module with embedded lithium battery and crystal (DS14287) Automatic backup supply and write protection to make external SRAM nonvolatile Counts seconds, minutes, hours, days, day of the week, date, month, and year with leap year compensation valid up to 2100 Binary or BCD representation of time, calendar, and alarm 12- or 24-hour clock with AM and PM in 12-hour mode Daylight Savings Time option Multiplex bus for pin efficiency Interfaced with software as 128 RAM locations – 14 bytes of clock and control registers – 114 bytes of general purpose RAM Programmable square wave output signal Bus-compatible interrupt signals ( IRQ ) Three interrupts are separately software- maskable and testable – Time-of-day alarm once/second to once/day – Periodic rates from 122 µs to 500 ms – End of clock update cycle Optional industrial temperature version available DS14285 DIP, SOIC, and PLCC PIN ASSIGNMENT DS14285/DS14287 Real Time Clock with NV RAM Control www.dalsemi.com DS14285 24-Pin DIP DS14285S 24-Pin SOIC 23 X2 AD1 AD3 AD4 AD5 AD6 AD7 GND VCC CEI VBAT IRQ RESET DS GND R/W AS CS 1 2 3 4 5 6 7 8 9 10 11 12 24 22 21 20 19 18 17 16 15 14 13 X1 AD0 AD2 SQW CEO DS14285Q 28-Pin PLCC AD0 AD1 AD2 AD3 AD4 AD5 CEI VBAT IRQ RESET DS GND NC R/W 25 24 23 22 21 20 19 5 6 7 8 9 10 11 4 3 2 1 28 27 26 12 13 14 15 16 17 18 23 NC AD1 AD3 AD4 AD5 AD6 AD7 GND VCC SQW CEO CEI NC IRQ RESET DS NC R/W AS CS 1 2 3 4 5 6 7 8 9 10 11 12 24 22 21 20 19 18 17 16 15 14 13 NC AD0 AD2 VCCO DS14287 24-Pin Encapsulated Package VCCO |
Similar Part No. - DS14285N |
|
Similar Description - DS14285N |
|
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.NET |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
