Japan, Mainland China, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand, USA
ECCN Code:
EAR99
HTS Code:
8542.32.00.51
Date Of Intro:
1999-08-19
Manufacturer:
Analog Devices Inc
YTEOL:
9
Access Time-Max:
15000 ns
JESD-30 Code:
O-MEDB-N2
JESD-609 Code:
e3
Memory Density:
64 bit
Memory IC Type:
EEPROM
Memory Width:
1
Number of Functions:
1
Number of Terminals:
2
Number of Words:
64 words
Number of Words Code:
64
Operating Mode:
ASYNCHRONOUS
Operating Temperature-Max:
85 °C
Operating Temperature-Min:
-40 °C
Organization:
64X1
Package Body Material:
METAL
Package Equivalence Code:
BUTTON,.68IN
Package Shape:
ROUND
Package Style:
DISK BUTTON
Parallel/Serial:
SERIAL
Qualification Status:
Not Qualified
Serial Bus Type:
1-WIRE
Supply Voltage-Max (Vsup):
6 V
Supply Voltage-Min (Vsup):
2.8 V
Supply Voltage-Nom (Vsup):
3.3 V
Surface Mount:
YES
Technology:
MOS
Temperature Grade:
INDUSTRIAL
Terminal Finish:
Matte Tin (Sn)
Terminal Form:
NO LEAD
Terminal Position:
END
DS1990A-F5+ Frequently Asked Questions (FAQs)
The recommended power-up sequence is to apply VCC first, followed by VDD, and then the input signals. This ensures proper device operation and prevents latch-up.
To ensure reliable communication, ensure that the 1-Wire bus is properly terminated, use a pull-up resistor on the DQ pin, and implement a robust 1-Wire protocol with error checking and retries.
The maximum cable length supported by the DS1990A-F5+ is approximately 100 meters, but this can vary depending on the cable quality, noise environment, and 1-Wire bus configuration.
Implement a robust error handling mechanism that detects and recovers from errors, such as CRC errors, timeouts, and bus collisions. Use the device's built-in error detection mechanisms, such as the CRC and ROM ID checks.
Yes, the DS1990A-F5+ supports multi-drop 1-Wire bus configurations, but ensure that each device has a unique ROM ID and that the bus is properly terminated to prevent signal reflections.
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DS1990A-F5+ Overview
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About Analog Devices
Analog Devices Inc. is a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing integrated circuits and software solutions for the industrial, automotive, healthcare, communications industries. Analog Devices serves a diverse range of markets including industrial, automotive, healthcare, energy, aerospace, defense, and consumer electronics industries.
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