AT24C32C Description

The AT24C32C/64C provides 32,768/65,536 bits of serial electrically erasable and

programmable read only memory (EEPROM) organized as 4096/8192 words of 8 bits

each. The device’s cascadable feature allows up to 8 devices to share a common 2-

wire bus. The device is optimized for use in many industrial and commercial applica-

tions where low power and low voltage operation are essential. The AT24C32C/64C is

available in space saving 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Lead Frame

Land Grid Array (ULA), 8-lead TSSOP, 8-lead Ultra Thin Mini-MAP (MLP2x3) and, 8-

ball dBGA2 packages and is accessed via a 2-wire serial interface. In addition, the

entire family is available in 1.8V (1.8 to 5.5V) version.

AT24C32C Features

• Low-voltage and Standard-voltage Operation

– 1.8 (V CC = 1.8 to 5.5V)

• Internally Organized 4096 x 8, 8192 x 8

• 2-Wire Serial Interface

• Schmitt Trigger, Filtered Inputs for Noise Suppression

• Bi-directional Data Transfer Protocol

• 1 MHz (5.0V) and 400 KHz (1.8V Compatibility)

• Write Protect Pin for Hardware Data Protection

• 32-Byte Page Write Mode (Partial Page Writes Allowed)

• Self-Timed Write Cycle (5 ms max)

• High Reliability

– Endurance: 1 Million Write Cycles

– Data Retention: 100 Years

• Lead-free/Halogen-free Devices

• 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Lead Frame Land Grid Array (ULA), 8-lead TSSOP, 8-lead Ultra Thin Mini-MAP (MLP2x3), and 8-ball dBGA2 Packages.

• Die Sales: Wafer Form, Waffle Pack, and Bumped Wafers

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