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N21C21A

ON Semiconductor
Part Number N21C21A
Manufacturer ON Semiconductor
Description 1-Kb 1-Wire EPROM
Published Jul 14, 2022
Detailed Description 1 Kb 1-Wire EPROM Add-Only Memory N21C21A Description The N21C21A is a 1K−bit serial EPROM containing a factory− program...
Datasheet PDF File N21C21A PDF File

N21C21A
N21C21A


Overview
1 Kb 1-Wire EPROM Add-Only Memory N21C21A Description The N21C21A is a 1K−bit serial EPROM containing a factory− programmed, unique 48−bit identification number, 8−bit CRC generation, and the 8−bit family code (09h).
A 64−bit status register controls write protection and page redirection.
The N21C21A 1−wire interface requires only a single connection and a ground return.
The DATA pin is also the sole power source for the N21C21A.
The small surface−mount package options saves printed−circuit− board space, while the low cost makes it ideal for applications such as battery pack configuration parameters, record maintenance, asset tracking, product−revision status, and access−code security.
Features • 1024 Bits of One−Time Programmable (OTP) EPROM For Storage Of User−Programmable Configuration Data • Factory−Programmed Unique 64−Bit Identification Number • Single−Wire Interface to Reduce Circuit Board Routing • Synchronous Communication Reduces Host Interrupt Overhead • No Standby Power Required • 8 byte RAM Buffer (Scratch Pad) • Available in a 3−Pin SOT−23 • This is a Pb−Free Device Applications • Security Encoding • Inventory Tracking • Product−Revision Maintenance • Battery−Pack Identification www.
onsemi.
com SOT−23 SN SUFFIX CASE 527AG 6 1 UDFN6 MU SUFFIX CASE 517AP PIN DESCRIPTIONS DQ 1 3 VSS VSS 2 SOT23 (Top View) Pin Number 1 2 3 Pin Description DQ − DATA Serial I/O VSS VSS 1 DQ VSS UDFN6 (Top View) Pin Number 1 2 3 4 5 6 Pin Description Do not connect (NC) DQ − DATA Serial I/O Do not connect (NC) Do not connect (NC) VSS Do not connect (NC) ORDERING INFORMATION See detailed ordering and shipping information on page 13 of this data sheet.
© Semiconductor Components Industries, LLC, 2019 1 June, 2020 − Rev.
1 Publication Order Number: N21C21A/D N21C21A Table 1.
ABSOLUTE MAXIMUM RATINGS Parameter Min Typ Max Units DC voltage applied to data, VPU –0.
3 12.
5 V Low−level output current, IOL 40 mA Operating free−air temperature, TA –2...


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