Electronic Components Datasheet Search |
|
DS12R885S-33+TR Datasheet(PDF) 1 Page - Maxim Integrated Products |
|
DS12R885S-33+TR Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 23 page General Description The DS12R885 is a functional drop-in replacement for the DS12885 real-time clock (RTC). The device pro- vides an RTC/calendar, one time-of-day alarm, three maskable interrupts with a common interrupt output, a programmable square wave, and 114 bytes of battery- backed static RAM. The date at the end of the month is automatically adjusted for months with fewer than 31 days, including correction for leap years. It also oper- ates in either 24-hour or 12-hour format with an AM/PM indicator. A precision temperature-compensated circuit monitors the status of VCC. If a primary power failure is detected, the device automatically switches to a back- up supply. The VBACKUP pin supports a rechargeable battery or a super cap and includes an integrated, always enabled trickle charger. The DS12R885 is accessed through a multiplexed byte-wide interface, which supports both Intel and Motorola modes. The DS12CR887 and DS12R887 integrate the DS12R885 die with a crystal and battery. Applications Embedded Systems Utility Meters Security Systems Network Hubs, Bridges, and Routers Features ♦ Trickle-Charge Capability for a Rechargeable Battery or Super Cap ♦ Selectable Intel or Motorola Bus Timing ♦ RTC Counts Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap-Year Compensation to 2100 ♦ Interrupt Output with Three Independently Maskable Interrupt Flags ♦ Time-of-Day Alarm is Once-per-Second to Once- per-Day ♦ Periodic Rates from 122µs to 500ms ♦ End-of-Clock Update Cycle Flag ♦ 14 Bytes of Clock and Control Registers ♦ 114 Bytes of General-Purpose Battery-Backed NV RAM with Clear Input ♦ Programmable Square-Wave Output ♦ Automatic Power-Fail Detect and Switch Circuitry ♦ +5.0V or +3.3V Operation ♦ Industrial Temperature Range ♦ DS12CR887 Encapsulated DIP (EDIP) Module with Integrated Battery and Crystal ♦ DS12R887 BGA Module Surface-Mountable Package with Integrated Crystal and Rechargeable Battery RTCs with Constant-Voltage Trickle Charger ______________________________________________ Maxim Integrated Products 1 DS12R885 DS83C520 ± R/W AS GND X2 X1 VCC VCC CRYSTAL DS VBACKUP SUPER CAP AD(0–7) SQW RESET IRQ RCLR CS MOT Typical Operating Circuit 19-5217; Rev 6; 4/10 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. PART TEMP RANGE PIN- PACKAGE TOP MARK* DS12R885S-5+ -40°C to +85°C 24 SO (300 mils) DS12R885-5 DS12R885S-5+ T&R -40°C to +85°C 24 SO (300 mils) DS12R885-5 DS12R885S-33+ -40°C to +85°C 24 SO (300 mils) DS12R885-33 DS12R885S-33+ T&R -40°C to +85°C 24 SO (300 mils) DS12R885-33 DS12CR887-5+ -40°C to +85°C 24 EDIP (700 mils) DS12CR887-5 DS12CR887-33+ -40°C to +85°C 24 EDIP (700 mils) DS12CR887-33 DS12R887-5 -40°C to +85°C 48 BGA DS12R887-5 DS12R887-33 -40°C to +85°C 48 BGA DS12R887-33 Pin Configurations appear at end of data sheet. + Denotes a lead(Pb)-free/RoHS-compliant package. T&R = Tape and reel. * A “+” anywhere on the top mark indicates a lead(Pb)-free device. Ordering Information |
Similar Part No. - DS12R885S-33+TR |
|
Similar Description - DS12R885S-33+TR |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | 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 |