Product Details
Key Features
- Completely Manages All Timekeeping Functions
- RTC Counts Seconds, Minutes, Hours, Day of Week, Date of Month, Month, Year, and Century
- Leap-Year Compensation
- 31 x 8-Bit SRAM for Scratchpad Data Storage
- Programmable Time/Date Polled ALARM Function
- Uses Standard 32.768kHz Watch Crystal
- Low-Power Operation Extends Battery Life
- Low Timekeeping Current (400nA at 2V)
- +2V to +5.5V Wide Operating Voltage Range
- Standard Serial Port Interfaces with Most Microcontrollers
- SPI (Mode 1 or 3) Interface: 4MHz at 5V, 1MHz at 2V
- Single-Byte or Multiple-Byte (Burst Mode) Data Transfer for Read or Write of Clock Registers or SRAM
- 3mm x 3mm x 0.8mm, 8-Pin TDFN Package Minimizes Required Space
- No External Crystal Bias Resistors or Capacitors Required
Applications/Uses
- Battery-Powered Products
- Fax Machines
- Intelligent Instruments
- Point-of-Sale Equipment
- Portable Instruments
Interface | SPI |
VSUPPLY (V) | 2.0 to 5.5 |
Date/ Time Format (hh = sec/100) | YYYY-MM-DD/ HH:MM:SS |
Time Keeping Current (nA) (typ) | 350 |
CL (pF) | 12.5 |
Memory Type | SRAM |
Memory Size (Bytes) | 31 |
Time of Day Alarms | 1 |
Package/Pins | TDFN/8 |
Budgetary Price (See Notes) | $1.47 @1k |
Technical Docs
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Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal
Parameters
Interface | SPI |
VSUPPLY (V) | 2.0 to 5.5 |
Date/ Time Format (hh = sec/100) | YYYY-MM-DD/ HH:MM:SS |
Time Keeping Current (nA) (typ) | 350 |
CL (pF) | 12.5 |
Memory Type | SRAM |
Memory Size (Bytes) | 31 |
Time of Day Alarms | 1 |
Package/Pins | TDFN/8 |
Budgetary Price (See Notes) | $1.47 @1k |
Key Features
- Completely Manages All Timekeeping Functions
- RTC Counts Seconds, Minutes, Hours, Day of Week, Date of Month, Month, Year, and Century
- Leap-Year Compensation
- 31 x 8-Bit SRAM for Scratchpad Data Storage
- Programmable Time/Date Polled ALARM Function
- Uses Standard 32.768kHz Watch Crystal
- Low-Power Operation Extends Battery Life
- Low Timekeeping Current (400nA at 2V)
- +2V to +5.5V Wide Operating Voltage Range
- Standard Serial Port Interfaces with Most Microcontrollers
- SPI (Mode 1 or 3) Interface: 4MHz at 5V, 1MHz at 2V
- Single-Byte or Multiple-Byte (Burst Mode) Data Transfer for Read or Write of Clock Registers or SRAM
- 3mm x 3mm x 0.8mm, 8-Pin TDFN Package Minimizes Required Space
- No External Crystal Bias Resistors or Capacitors Required
Applications/Uses
- Battery-Powered Products
- Fax Machines
- Intelligent Instruments
- Point-of-Sale Equipment
- Portable Instruments
Description
Technical Docs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal