DS1305 ,Real Time Clock IC - Maxim Integrated

The pictures are for reference only, and the specific specifications can be found in the product manual.

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43 points

Part No

DS1305
Manufacturer

Maxim Integrated
ChipWorker Part#

CW196423784
Category

Real Time Clock IC
Package

DIP-16
Description

Real Time Clock Serial 96Byte Clock/Calendar/Alarm 16Pin PDIP N
Documentation

Datasheet
Ships from

Moscow
Наличие

21 pcs In Stock
Estimated Price

$ 6.41

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DS1305 Specifications

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Attribute	Attribute Value

Part Number	DS1305
Manufacturer	Maxim Integrated
ChipWorker Part#	CW196423784
Category	Real Time Clock IC
Documentation	Datasheet
Mounting Style	Through Hole
Number of Pins	24 Pin
Case/Package	DIP-16
Supply Voltage (DC)	2.00V (max)
Number of Outputs	1 Output
Clock Speed	32.8 kHz
Memory Size	96 B
Supply Voltage	2V ~ 5.5V
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Operating Temperature	0℃ ~ 70℃
Product Lifecycle Status	Unknown
Packaging	Tube
RoHS	Non-Compliant
Lead-Free Status	Contains Lead

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Product Description

Description
The DS1305 serial alarm real-time clock provides a full binary coded decimal (BCD) clock calendar that is accessed by a simple serial interface. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. In addition, 96 bytes of NV RAM are provided for data storage. The DS1305 will maintain the time and date, provided the oscillator is enabled, as long as at least one supply is at a valid level. An interface logic power-supply input pin (VCCIF) allows the DS1305 to drive SDO and active-low PF pins to a level that is compatible with the interface logic. This allows an easy interface to 3V logic in mixed supply systems.
The DS1305 offers dual-power supplies as well as a battery input pin. The dual power supplies support a programmable trickle charge circuit that allows a rechargeable energy source (such as a super cap or rechargeable battery) to be used for a backup supply. The VBAT pin allows the device to be backed up by a non-rechargeable battery. The DS1305 is fully operational from 2.0V to 5.5V.
Two programmable time-of-day alarms are provided by the DS1305. Each alarm can generate an interrupt on a programmable combination of seconds, minutes, hours, and day. "Don"t care" states can be inserted into one or more fields if it is desired for them to be ignored for the alarm condition. The time-of-day alarms can be programmed to assert two different interrupt outputs or to assert one common interrupt output. Both interrupt outputs operate when the device is powered by VCC1, VCC2, or VBAT.
The DS1305 supports direct serial peripheral interface SPI™ to serial data ports or standard 3-wire interface. A straightforward address and data format is implemented in which data transfers can occur 1 byte at a time or in multiple-byte-Burst Mode®.

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