M24C32-DF

Part: M24C32

Type: Serial I²C Bus EEPROM

Description: 32-Kbit (4 Kbyte) serial I²C EEPROM organized as 4 K × 8 bits supporting up to 1 MHz Fast Mode Plus operation with operating voltage down to 1.6 V.

Operating Conditions:

• Supply voltage: 1.6 V to 5.5 V (variant dependent; 1.7 V to 5.5 V standard)
• Operating temperature: -40 °C to +85 °C (-20 °C to +85 °C for M24C32-X)

Key Specs:

• Memory density: 32 Kbit (4096 bytes)
• Page size: 32 bytes
• I²C clock frequency: Up to 1 MHz (Fast Mode Plus), 400 kHz (Fast Mode), 100 kHz (Standard Mode)
• Write cycle time: 5 ms max (3.2 ms typical)
• Write endurance: More than 4 million write cycles
• Data retention: More than 200 years

Features:

• Hardware write protection of the entire memory array via WC pin
• Additional 32-byte identification page with permanent lock capability (M24C32-DF)
• Internal Error Correction Code (ECC) logic on process letter K devices
• Random and sequential read modes
• Byte and page write modes up to 32 bytes

Package:

• SO8N
• TSSOP8 (DW) 169 mil width
• UFDFPN8 (MC) DFN8 2 x 3 mm
• UFDFPN5 (MH) DFN5 1.7 x 1.4 mm
• Unsawn wafer

• Hardware write protection of the whole memory array
• Random and sequential read modes

To meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions, and product status are available at: www.st.com. ECOPACK is an ST trademark.