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28 Terminations3V 28 Pin DS1688 Real Time ClocksAlarm, Leap Year, Square Wave Output, Unique ID 0.032MHz
- Manufacturer: Maxim Integrated
- NO: 503-DS1688S
- Package: 28-SOIC (0.295, 7.50mm Width)
- Datasheet:
- Stock: 8240
- Description: 28 Terminations3V 28 Pin DS1688 Real Time ClocksAlarm, Leap Year, Square Wave Output, Unique ID 0.032MHz (Kg)
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| Parameters | |
|---|---|
| Date Format | YY-MM-DD |
| Height Seated (Max) | 3.05mm |
| Length | 18.1mm |
| Width | 8.565mm |
| Radiation Hardening | No |
| RoHS Status | Non-RoHS Compliant |
| Lead Free | Contains Lead |
| Mount | Surface Mount |
| Mounting Type | Surface Mount |
| Package / Case | 28-SOIC (0.295, 7.50mm Width) |
| Number of Pins | 28 |
| Operating Temperature | 0°C~70°C |
| Packaging | Tube |
| Published | 2005 |
| JESD-609 Code | e3 |
| Feature | Alarm, Leap Year, Square Wave Output, Unique ID |
| Part Status | Obsolete |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Number of Terminations | 28 |
| ECCN Code | EAR99 |
| Type | Clock/Calendar |
| Terminal Finish | Matte Tin (Sn) |
| Additional Feature | CAN ALSO OPERATE WITH 5V SUPPLY |
| HTS Code | 8542.39.00.01 |
| Technology | CMOS |
| Voltage - Supply | 2.7V~3.3V 4.5V~5.5V |
| Terminal Position | DUAL |
| Supply Voltage | 3V |
| Terminal Pitch | 1.27mm |
| Base Part Number | DS1688 |
| Pin Count | 28 |
| Operating Supply Voltage | 3.3V |
| Interface | Parallel |
| Memory Size | 114B |
| Number of Bits | 16 |
| Clock Frequency | 0.032MHz |
| Logic Function | Clock |
| External Data Bus Width | 8 |
| Number of Timers | 1 |
| Time Format | HH:MM:SS (12/24 hr) |
DS1688S Overview
There is an embedded version in the package 28-SOIC (0.295, 7.50mm Width).There is a packaging method that is similar to Tube.It requires a voltage of 2.7V~3.3V 4.5V~5.5V to be supplied.There is a type of electrical real time clock Clock/Calendar associated with this real time clock.Surface Mount is the way this real time clock (RTC) is mounted on the system board.0°C~70°C is the operating temperature.There is a way to make sure that Alarm, Leap Year, Square Wave Output, Unique ID is maintained when operating if desired.Transmission lines with 28 terminations have the characteristic impedance of the RTC module terminating them.This RTC real time clock is supplied with 3V voltage.It has a total of 28 pins on it.In the family DS1688, RTCs are a member.A memory of 114B is embedded into the RTC times for storing programs and data.Ensure that the output frequency does not exceed 0.032MHz.There is a mounting type Surface Mount specified for the RTC module.The real time clock is equipped with 28 pins.1 timer real time clocks send out a signal at a preset time based on input signals.In order to achieve high efficiency, the supply voltage should be kept at 3.3V.Furthermore, CAN ALSO OPERATE WITH 5V SUPPLY are its characteristics.A 16 bit digital time clock has been designed.
DS1688S Features
28-SOIC (0.295, 7.50mm Width) package
28 terminations
28 pin count
Be maintained at 3.3V for high efficiency.
16 Bits
DS1688S Applications
There are a lot of Maxim Integrated DS1688S Real Time Clocks applications.
- Battery backed up systems
- Metering
- Daily alarms
- Wearables, Portables
- Vending Machine
- Mobile equipment
- Copier
- Bridges
- Electronic metering
- Mobile telephones
