Status: | Active |
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Series: | AT21CS11 |
RoHS: | Compliant |
The Microchip AT21CS11 is a 1 Kb Serial EEPROM utilizing the Single-Wire bus. Only two pins are needed to access the device: SI/O and GND. The SI/O signal is a combination data and power line, providing power to the device with a parasitic power scheme. The device is organized as one block of 128 x 8 and is optimized for use in consumer and industrial applications where reliable and dependable nonvolatile memory storage is essential. The EEPROM is available in a variety of space-saving packaging options.
The AT21CS11 features a 256-bit Security register which includes a 64-bit serial number. The device also features manufacturer ID support in which the device responds with a unique value for density and revision information.
Prices starting from US$0.25
128 x 8 (1 Kbit) |
I²C Protocol Structure |
Communication through a single I/O pin |
High Speed (125 kbps) Mode |
Self-Timed Erase and Write Cycles (5 ms max.) |
Read current 0.08 mA (Typ), 0.3 mA (Max) |
Write current 0.2 mA (Typ), 0.5 mA (Max) |
Standby current 0.7 uA (Typ), 2.5 uA (Max) |
Four independent 256-bit zones |
More than 1 million erase/write cycles |
Data retention > 100 years |
ESD protection > 8000V (HBM) |
Factory Programming Available |
Available in 8-pin SOIC (150 mil), 3-pin SOT23, 2-pad XSFN, and 4-ball Thin CSP packages. |
Density (Organization) | 1K bits (x8) |
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Operating Voltage Min. (V) | 2.7 |
Oper Voltage Max (V) | 4.5 |
Max. Clock Freq. | 125 kbps |
Page Size (bytes) | 8 |
Write Protected | True |
Write Protect Scheme | Software Configurable |
Endurance | 1,000,000 |
Data Retention (Years) | 0 |
Battery Backup | False |
Pins | Packaging | 2 | XSFN |
Temp Range | -40C to +85C |
Packing Media | Tape and reel (5000) |
Data Sheets |
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AT21CS01/AT21CS11 Data Sheet |
Brochures |
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Atmel Serial EEPROM Products |
Atmel System Peripheral and Memory Products Brochure |
Automotive Solutions |
Product Selection Guide |
Atmel AT21CS Series Single-Wire Serial EEPROMs |
JEDEC Indicator | e4 |
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ROHS | Compliant |
China EFUP | Compliant |
Device Weight (g) | 0.0203 |
Shipping Weight (kg) | 0.11 |
Lead Count | 2 |
Package Type | XSFN |
Package Width or Size | 5x3.5x0.4mm |
Soldering Composition | NiPdAu |
Single Wire,IO Powered Serial EEprom 1Kb,2.7V-4.5V, Ind. Gr.,Slave address 0-0-0 | Microchip Technology |
EEPROM, 1KBIT, 1 WIRE, 4.5V, XSFN-2 | Farnell |
Eeprom, 1Kbit, 1 Wire, 4.5V, Xsfn-2 | Newark Electronics |
EEPROM 2.7-4.5V, 125Kbps XSFN-2 | RS |
AT21CS11 Series 1 Kb (128 x 8) 4.5 V 125 kHz Serial EEPROM - XSFN-2 (5x3.5) | Future Electronics |
EEPROM Serial 1-Wire 1Kbit 128 X 8 2.7V to 4.5V 2-Pin XSFN T/R | Avnet America |
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Is the AT21CS11-MSH10-T RoHS compliant?
Yes. This part has been flagged as RoHS Compliant by Microchip Technology.
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