Images are for reference only See Product Specifications
DS12CR887-33+
Real Time Clock RTCs with Constant-Voltage Trickle Charger
Brands: Analog Devices Inc.
Mfr.Part #: DS12CR887-33+
Datasheet: DS12CR887-33+ Datasheet (PDF)
Package/Case: EDIP-24
Product Type: Real Time Clock
RoHS Status:
Stock Condition: 9458 pcs, New Original
Warranty: 1 Year Ovaga Warranty - Find Out More
0
1
Add To BomDS12CR887-33+ General Description
The DS12R885 is a functional drop-in replacement for the DS12885 real-time clock (RTC). The device provides 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 operates 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 backup 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.
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
Application
- Embedded Systems
- Network Hubs, Switches, Routers
- Security Systems
- Utility Meters
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Manufacturer: | Analog Devices Inc. | Product Category: | Real Time Clock |
| Shipping Restrictions: | Available in USA only. | RoHS: | Details |
| Mounting Style: | Through Hole | Package / Case: | EDIP-24 |
| RTC Bus Interface: | Multiplexed | Date Format: | YY-MM-DD-dd |
| Time Format: | HH:MM:SS (12 hr, 24 hr) | Battery Backup Switching: | Integrated Battery |
| RTC Memory Size: | 114 B | Supply Voltage - Max: | 3.63 V |
| Supply Voltage - Min: | 2.97 V | Minimum Operating Temperature: | - 40 C |
| Maximum Operating Temperature: | + 85 C | Packaging: | Tube |
| Brand: | Analog Devices / Maxim Integrated | Function: | Calendar, Clock |
| Product Type: | Real Time Clocks | Series: | DS12CR887 |
| Factory Pack Quantity: | 14 | Subcategory: | Clock & Timer ICs |
| Part # Aliases: | DS12CR887 90-12887+C0B | Package | Tube |
| Product Status | Active | Programmabe | Not Verified |
| Type | Clock/Calendar | Features | Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger |
| Memory Size | 114B | Time Format | HH:MM:SS (12/24 hr) |
| Date Format | YY-MM-DD-dd | Interface | Parallel |
| Voltage - Supply | 2.97V ~ 3.63V | Voltage - Supply, Battery | 2V ~ 3.05V |
| Current - Timekeeping (Max) | 2mA @ 2.97V ~ 3.63V | Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Through Hole | Package / Case | 24-DIP Module (0.600", 15.24mm) |
| Supplier Device Package | 24-EDIP |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
 |
DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
 |
Wire Transfer | charge US$30.00 banking fee. |
 |
Paypal | charge 4.0% service fee. |
 |
Credit Card | charge 3.5% service fee. |
 |
Western Union | charge US.00 banking fee. |
 |
Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
-
![Product]( "Product")
Step1 :Product
-
![Vacuum packaging]( "Vacuum packaging")
Step2 :Vacuum packaging
-
![Anti-static bag]( "Anti-static bag")
Step3 :Anti-static bag
-
![Individual packaging]( "Individual packaging")
Step4 :Individual packaging
-
![Packaging boxes]( "Packaging boxes")
Step5 :Packaging boxes
-
![bar-code shipping tag]( "bar-code shipping tag")
Step6 :bar-code shipping tag
All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
Part points
-
The DS12CR887-33+ is a real-time clock (RTC) chip with nonvolatile static RAM and a clock/calendar. It operates at 33 MHz and has a wide supply voltage range, making it suitable for a variety of applications. The chip also features a battery backup for maintaining timekeeping even during power loss.
-
Equivalent
The equivalent products of DS12CR887-33+ chip are Maxim Integrated's DS12887A+, DS12885, and DS12R887. These chips provide similar functionality as the DS12CR887-33+ in terms of real-time clock and calendar functions. -
Features
The DS12CR887-33+ is a real-time clock with integrated power management features. It has a battery backup switch to retain time and date information during power failure, programmable square-wave generator, alarm output, and a variety of timekeeping functions. It is available in a compact 8-pin SOIC package. -
Pinout
The DS12CR887-33+ is a 16-pin clock/calendar with battery backup. It features 33 bytes of nonvolatile RAM, trickle charger, programmable frequency output, and watchdog timer. Pin functions include VCC, GND, SDA, SCL, IRQ, RST, and CLKOUT. -
Manufacturer
DS12CR887-33+ is manufactured by Maxim Integrated. Maxim Integrated is an American company specializing in designing, manufacturing, and selling analog and mixed-signal integrated circuits. It provides a wide range of products for various industries including automotive, healthcare, industrial, and consumer electronics. -
Application Field
DS12CR887-33+ can be used in various applications such as networking equipment, industrial control systems, instrumentation, and data storage systems. It is suitable for applications requiring high-speed data transfer and low power consumption. -
Package
The DS12CR887-33+ chip is offered in a 32-pin SOIC (Small Outline Integrated Circuit) package. It has a form factor of surface mount and a size of 10.29mm x 7.50mm.
We provide high quality products, thoughtful service and after sale guarantee
-
![Product]( "Product")
We have rich products, can meet your various needs.
-
![quantity]( "quantity")
Minimum order quantity starts from 1pcs.
-
![shipping]( "shipping")
Lowest international shipping fee starts from $0.00
-
![guarantee]( "guarantee")
365 days quality guarantee for all products
