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AT21CS01 Datenblatt(PDF) 2 Page - Microchip Technology

Teilenummer AT21CS01
Bauteilbeschribung  Single-Wire, I/O Powered 1-Kbit (128 x 8) Serial EEPROM with a Unique, Factory-Programmed 64-Bit Serial Number
PDF  47 Pages
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Hersteller  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

AT21CS01 Datenblatt(HTML) 2 Page - Microchip Technology

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Package Types (not to scale)
8-lead SOIC
(Top View)
NC
1
2
3
4
8
7
6
5
NC
NC
GND
NC
NC
NC
SI/O
SI/O
GND
4-ball WLCSP
(Top View)
NC
NC
A1
A2
B1
B2
3
2
1
GND
SI/O
NC
3-lead SOT23
(Top View)
SI/O
GND
1
2
2-pad XSFN
(Top View)
Description
The AT21CS01/11 is a 2-pin memory (SI/O signal and Ground) that harvests energy from the signal pin to
power the integrated circuit. It provides 1,024 bits of Serial Electrically Erasable and Programmable Read-
Only Memory (SEEPROM) organized as 128 words of eight bits each.
The device is optimized to add configuration and use information in unpowered attachments using a two-point
mechanical connection that brings only one signal (SI/O) and GND to the unpowered attachment. Some
unpowered attachment application examples include analog sensor calibration data storage, ink and toner
printer cartridge identification, and management of after
‑market consumables. The device’s software
addressing scheme allows up to eight devices to share a common single
‑wire bus. The device is available in
space
‑saving package options and operates with an external pull‑up voltage from 1.7V to 3.6V on the SI/O
line (AT21CS01) or from 2.7V to 4.5V on the SI/O line (AT21CS11).
AT21CS01/AT21CS11
© 2017 Microchip Technology Inc.
Datasheet
DS20005857A-page 2



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