Product Summary

The DS1302Z trickle-charge timekeeping chip contains a real-time clock/calendar and 31 bytes of static RAM. It communicates with a microprocessor via a simple serial interface.

Parametrics

Absolute maximum ratings: (1)Voltage Range on Any Pin Relative to Ground:-0.5Vto +7.0V ; (2)Operating Temperature Range, Commercial:0℃ to +70℃ ; (3)Operating Temperature Range, Industrial (IND):-40℃ to +85℃; (4)Storage Temperature Range:-55℃ to +125℃ ; (5)Soldering Temperature (leads, 10 seconds):260℃; (6)Soldering Temperature (surface mount):See IPC/JEDEC J-STD-020.

Features

Features: (1)Real-Time Clock Counts Seconds, Minutes, Hours, Date of the Month, Month, Day of the Week, and Year with Leap-Year Compensation Valid Up to 2100 ; (2)31 x 8 RAM for Scratchpad Data Storage ; (3)Serial I/O for Minimum Pin Count ; (4)2.0V to 5.5V Full Operation ; (5)Uses Less than 300nA at 2.0V ; (6)Single-Byte or Multiple-Byte (Burst Mode) Data Transfer for Read or Write of Clock or RAM Data ; (7)8-Pin DIP or Optional 8-Pin SO for Surface Mount ; (8)Simple 3-Wire Interface ; (9)TTL-Compatible (VCC = 5V) ; (10)Optional Industrial Temperature Range: -40℃ to +85℃ ; (11)DS1202 Compatible ; (12)Underwriters Laboratory (UL) Recognized.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
DS1302Z
DS1302Z

Maxim Integrated Products

Real Time Clock Trickle-Charge Timekeeping Chip

Data Sheet

0-6900: $1.20
DS1302Z/T&R
DS1302Z/T&R

Maxim Integrated Products

Real Time Clock Trickle-Charge Timekeeping Chip

Data Sheet

0-2500: $1.03
2500-7210: $1.03
DS1302Z/T&R/C06
DS1302Z/T&R/C06

Maxim Integrated Products

Real Time Clock Trickle-Charge Timekeeping Chip

Data Sheet

0-2500: $0.89
2500-8330: $0.89
DS1302Z+
DS1302Z+

Maxim Integrated Products

Real Time Clock Trickle-Charge Timekeeping Chip

Data Sheet

0-1: $2.23
1-25: $1.50
25-50: $1.09
50-100: $1.07
DS1302Z+T&R
DS1302Z+T&R

Maxim Integrated Products

Real Time Clock Trickle-Charge Timekeeping Chip

Data Sheet

0-1: $1.85
1-25: $1.40
25-50: $1.36
50-100: $1.22
DS1302Z+T&R/C07
DS1302Z+T&R/C07

Maxim Integrated Products

Real Time Clock Trickle-Charge Timekeeping Chip

Data Sheet

Negotiable 
DS1302ZN
DS1302ZN

Maxim Integrated Products

Real Time Clock Trickle-Charge Timekeeping Chip

Data Sheet

0-6930: $1.31
DS1302ZN/T&R
DS1302ZN/T&R

Maxim Integrated Products

Real Time Clock Trickle-Charge Timekeeping Chip

Data Sheet

0-2500: $1.13
2500-7200: $1.13