Product Summary

The DS1961S-F5 is a 1kb Protected EEPROM iButton. The DS1961S-F5 combines 1024 bits of EEPROM, a 64-bit secret, an 8-byte register/control page with up to five user-read/write bytes, a 512-bit SHA-1 engine, and a fully featured 1-Wire interface in a rugged iButton. Data is transferred serially through the 1-Wire protocol, which requires only a single data lead and a ground return. The DS1961S-F5 has an additional memory area called the scratchpad that acts as a buffer when writing to the main memory, the register page, or when installing a new secret.

Parametrics

DS1961S-F5 absolute maximum ratings: (1)I/O Voltage to GND:-0.5V, +6V; (2)I/O Sink Current:20mA; (3)Temperature Range:-40℃ to +85℃; (4)Junction Temperature:+150℃; (5)Storage Temperature Range:-55℃ to +85℃.

Features

DS1961S-F5 features: (1)On-Chip, 512-Bit SHA-1 Engine to Compute 160-Bit MACs and Generate Secrets; (2)Reads and Writes Over a Wide 2.8V to 5.25V Voltage Range from 40℃ to +85℃; (3)Communicates to Host with a Single Digital Signal at 14.1kbps using 1-Wire; (4)Protocol On-Chip, 16-Bit Cyclic Redundancy Check(CRC) Generator for Safeguarding Data Transfers; (5)Overdrive Mode Boosts Communication Speed to 125kbps; (6)Operating Temperature Range from -40℃ to +85℃; (7)Minimum 10 Years of Data Retention at +85℃; (8)Button Shape is Self-Aligning with Cup-Shaped Probes; (9)Durable Stainless-Steel Case Engraved with Registration Number Withstands Harsh Environments.

Diagrams

DS1961S-F5 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
DS1961S-F5
DS1961S-F5
Maxim Integrated Products
iButtons
Data Sheet
Negotiable 
DS1961S-F5#
DS1961S-F5#
Maxim Integrated Products
iButtons
Data Sheet
Negotiable 
DS1961S-F5+
DS1961S-F5+
Maxim Integrated Products
iButtons 1kb Protected EEPROM iButton w/SHA-1 Eng
Data Sheet
0-1: $4.42
1-25: $2.96
25-50: $2.15
50-100: $2.12
DS1961S-F5#W
DS1961S-F5#W
Maxim Integrated Products
iButtons
Data Sheet
Negotiable