Product Summary

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

Parametrics

DS1302Z 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

DS1302Z 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

DS1302 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
DS1302
DS1302
Maxim Integrated Products
Real Time Clock Trickle-Charge Timekeeping Chip
Data Sheet
0-6900: $1.20
DS1302+
DS1302+
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
DS1302N
DS1302N
Maxim Integrated Products
Real Time Clock Trickle-Charge Timekeeping Chip
Data Sheet
0-6910: $1.49
DS1302N+
DS1302N+
Maxim Integrated Products
Real Time Clock Trickle-Charge Timekeeping Chip
Data Sheet
0-1: $2.79
1-25: $1.87
25-50: $1.36
50-100: $1.34
DS1302S
DS1302S
Maxim Integrated Products
Real Time Clock Trickle-Charge Timekeeping Chip
Data Sheet
0-6900: $1.20
DS1302S/T&R
DS1302S/T&R
Maxim Integrated Products
Real Time Clock Trickle-Charge Timekeeping Chip
Data Sheet
0-2000: $1.03
2000-7210: $1.03
DS1302S+
DS1302S+
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
DS1302S+T&R
DS1302S+T&R
Maxim Integrated Products
Real Time Clock Trickle-Charge Timekeeping Chip
Data Sheet
0-1530: $0.89
1530-2000: $0.87