Key facts
- Manuals
- 2
- Models
- 1
- Languages
- ZH
- Last added
- 2026-10-03
Dallas models by category
Featured Dallas manuals

Dallas DS1302 Clock Chip Datasheet
The DS1302 clock chip from Dallas provides a real‑time clock/calendar with automatic month‑length and leap‑year handling. It includes 31 bytes of static RAM and can operate in 24‑hour or 12‑hour mode.
Communication is performed via a simple three‑wire serial interface (CE, SCLK, I/O) that transfers data LSB first. The device is powered by a main supply (VCC1) and a backup supply (VCC2) that ensures operation when the main voltage drops. This manual is written in Chinese.
Covers: Pin Configuration · Internal Structure · Control Word · Timing Diagram · Driver Program · Reference Circuit

Dallas DS18B20 Smart Temperature Sensor Manual
The DS18B20 is a single‑wire digital temperature sensor produced by Dallas. It offers a simple three‑wire interface (VDD, GND, DQ), multiple package options (TO‑92, SOIC, CSP), and a unique 64‑bit ROM code that allows many sensors to share one bus.
The document details the sensor’s working principle, pin assignments, timing diagrams for reset, read and write operations, and provides example hardware connections with a 8051 microcontroller. It also covers configuration of resolution, temperature conversion times, and alarm thresholds for building reliable temperature‑monitoring applications. This manual is written in Chinese.
Covers: Working Principle · Internal Structure · Pin Functions · Communication Timing · Temperature Conversion · Hardware Connection
Latest Dallas manuals
Dallas DS1302 Clock Chip Datasheet
Datasheet 25 pages · 562 KB · ZHThe DS1302 is a Dallas clock chip with a real‑time clock/calendar and 31‑byte RAM, powered by a low‑power serial interface.
Dallas DS18B20 Smart Temperature Sensor Manual
User Manual 8 pages · 851 KB · ZHThis manual explains the DS18B20 sensor’s operation, internal structure, communication protocol, pin functions, timing, and how to build a microcontroller…
Which document do I need?
Datasheet
Ratings, dimensions and ordering codes, for selection and design work.
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in Dallas manuals
What supply voltage does the DS18B20 require?
The sensor operates from 3 V to 5 V.
How many bits of temperature resolution can be configured?
The DS18B20 can be configured for 9, 10, 11, or 12‑bit resolution.
