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AT24C128C Dataheets PDF



Part Number AT24C128C
Manufacturers Microchip
Logo Microchip
Description I2C Automotive Temperature Serial EEPROM
Datasheet AT24C128C DatasheetAT24C128C Datasheet (PDF)

AT24C128C/AT24C256C I²C Automotive Temperature Serial EEPROM 128‑Kbit (16,384 x 8), 256‑Kbit (32,768 x 8) Features • Low-Voltage, Medium-Voltage Operation: – Grade 1, VCC = 2.5V to 5.5V – Grade 3, VCC = 1.7V to 5.5V • Internally Organized as 16,384 x 8 (128K) or 32,768 x 8 (256K) • Extended Temperature Range (Grade 1 and Grade 3 as defined in AEC-Q100): – Grade 1 Temperature Range: -40°C to +125°C – Grade 3 Temperature Range: -40°C to +85°C • I2C-Compatible (Two-Wire) Serial Interface: – 100 kHz.

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AT24C128C/AT24C256C I²C Automotive Temperature Serial EEPROM 128‑Kbit (16,384 x 8), 256‑Kbit (32,768 x 8) Features • Low-Voltage, Medium-Voltage Operation: – Grade 1, VCC = 2.5V to 5.5V – Grade 3, VCC = 1.7V to 5.5V • Internally Organized as 16,384 x 8 (128K) or 32,768 x 8 (256K) • Extended Temperature Range (Grade 1 and Grade 3 as defined in AEC-Q100): – Grade 1 Temperature Range: -40°C to +125°C – Grade 3 Temperature Range: -40°C to +85°C • I2C-Compatible (Two-Wire) Serial Interface: – 100 kHz Standard mode – 400 kHz Fast mode • Schmitt Triggers, Filtered Inputs for Noise Suppression • Bidirectional Data Transfer Protocol • Write-Protect Pin for Hardware Data Protection • Ultra Low Active Current (3 mA maximum) and Standby Current (6 μA maximum) • 64-Byte Page Write Mode: – Partial page writes allowed • Random and Sequential Read Modes • Self-Timed Write Cycle within 5 ms Maximum • Automotive AEC-Q100 Qualified • High Reliability: – Endurance: 1,000,000 write cycles – Data retention: 100 years • Green Package Options (Lead-free/Halide-free/RoHS compliant) Packages • 8-Lead SOIC, 8-Lead TSSOP and 8-Pad UDFN © 2020 Microchip Technology Inc. Datasheet DS20006270B-page 1 AT24C128C/AT24C256C Table of Contents Features......................................................................................................................................................... 1 Packages........................................................................................................................................................1 1. Package Types (not to scale)..................................................................................................................4 2. Pin Descriptions...................................................................................................................................... 5 2.1. Device Address Inputs (A0, A1, A2).............................................................................................5 2.2. Ground......................................................................................................................................... 5 2.3. Serial Data (SDA).........................................................................................................................5 2.4. Serial Clock (SCL)........................................................................................................................5 2.5. Write-Protect (WP)....................................................................................................................... 5 2.6. Device Power Supply (VCC)......................................................................................................... 6 3. Description.............................................................................................................................................. 7 3.1. System Configuration Using Two-Wire Serial EEPROMs ........................................................... 7 3.2. Block Diagram.............................................................................................................................. 8 4. Electrical Characteristics.........................................................................................................................9 4.1. Absolute Maximum Ratings..........................................................................................................9 4.2. DC and AC Operating Range.......................................................................................................9 4.3. DC Characteristics....................................................................................................................... 9 4.4. AC Characteristics......................................................................................................................10 4.5. Electrical Specifications..............................................................................................................11 5. Device Operation and Communication................................................................................................. 13 5.1. Clock and Data Transition Requirements...................................................................................13 5.2. Start and Stop Conditions.......................................................................................................... 13 5.3. Acknowledge and No-Acknowledge...........................................................................................14 5.4. Standby Mode............................................................................................................................ 14 5.5. Software Reset...........................................................................................................................14 6. Memory Organization.................................................................................................


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