24C08 Technical Summary

Overview

The 24C08 is an I2C-compatible serial EEPROM (Electrically Erasable Programmable Read-Only Memory) device designed for low-power, high-reliability applications. It provides 8 Kbits (1024 x 8) of non-volatile memory storage, organized as 8 blocks of 128 bytes each. The device supports bidirectional data transfer protocols and is widely used in embedded systems, consumer electronics, and industrial applications where reliable data storage is required.

With its robust architecture, the 24C08 ensures data retention for up to 100 years and supports up to 1,000,000 write cycles per byte. Its I2C interface allows for easy integration with microcontrollers and other digital systems, making it a versatile choice for designers.

Features

• Memory Capacity: 8 Kbits (1024 bytes) organized in 8 blocks of 128 bytes each.
• I2C Interface: Supports standard (100 kHz) and fast (400 kHz) I2C protocols.
• Low Power Consumption: Active current of 1 mA (typical) and standby current of 1 µA (typical).
• Wide Voltage Range: Operates from 1.7V to 5.5V, making it suitable for both 3.3V and 5V systems.
• High Endurance: 1,000,000 write cycles per byte.
• Long Data Retention: 100 years minimum data retention period.
• Write Protection: Hardware write-protect pin (WP) for safeguarding critical data.
• Page Write Mode: Allows writing up to 16 bytes in a single operation for faster programming.
• Industrial Temperature Range: Operates from -40°C to +85°C.

Applications

The 24C08 is widely used in various electronic systems requiring non-volatile memory storage. Key applications include:

• Consumer Electronics: Smartphones, TVs, set-top boxes, and audio systems for storing configuration data.
• Automotive Systems: Infotainment systems, instrument clusters, and engine control units for parameter storage.
• Industrial Automation: PLCs, sensors, and control modules for logging operational data.
• Medical Devices: Patient monitoring systems and portable medical equipment for storing calibration data.
• Networking Equipment: Routers, switches, and modems for firmware and configuration storage.
• Embedded Systems: Microcontroller-based designs requiring small-footprint EEPROM storage.

Electrical Characteristics

Absolute Maximum Ratings

• Supply Voltage (V_CC): -0.6V to +6.5V
• Input Voltage (V_IN): -0.6V to V_CC + 0.6V
• Operating Temperature Range: -40°C to +85°C
• Storage Temperature Range: -65°C to +150°C

Recommended Operating Conditions

• Supply Voltage (V_CC): 1.7V to 5.5V
• Input High Voltage (V_IH): 0.7 x V_CC
• Input Low Voltage (V_IL): 0.3 x V_CC
• Clock Frequency (f_SCL): 0 Hz to 400 kHz (Fast Mode)

DC Characteristics

• Supply Current (Active): 1 mA (typical) at 100 kHz, 3 mA (typical) at 400 kHz
• Supply Current (Standby): 1 µA (typical)
• Input Leakage Current (I_IN): ±1 µA (maximum)
• Output Low Voltage (V_OL): 0.4V (maximum) at 3 mA sink current

AC Characteristics

• Clock Frequency (Standard Mode): 0 Hz to 100 kHz
• Clock Frequency (Fast Mode): 0 Hz to 400 kHz
• Start Condition Hold Time (t_HD;STA): 600 ns (minimum)
• Data Hold Time (t_HD;DAT): 0 ns (minimum)
• Write Cycle Time (t_WR): 5 ms (maximum)

Package Information

The 24C08 is available in multiple package options to suit different PCB layouts and assembly requirements. Below are the common package types:

8-Pin PDIP (Plastic Dual In-Line Package)

• Package Dimensions: 9.81 mm x 6.35 mm (body)
• Pin Pitch: 2.54 mm
• Lead Count: 8
• Mounting Type: Through-hole

8-Pin SOIC (Small Outline Integrated Circuit)

• Package Dimensions: 5.00 mm x 4.00 mm (body)
• Pin Pitch: 1.27 mm
• Lead Count: 8
• Mounting Type: Surface-mount

8-Pin TSSOP (Thin Shrink Small Outline Package)

• Package Dimensions: 3.00 mm x 4.40 mm (body)
• Pin Pitch: 0.65 mm
• Lead Count: 8
• Mounting Type: Surface-mount

Pin Configuration

The 24C08 features an 8-pin configuration with the following pinout:

• Pin 1 (A0): Address Input (LSB of device address)
• Pin 2 (A1): Address Input (middle bit of device address)
• Pin 3 (A2): Address Input (MSB of device address)
• Pin 4 (VSS): Ground
• Pin 5 (SDA): Serial Data Line (bidirectional)
• Pin 6 (SCL): Serial Clock Input
• Pin 7 (WP): Write Protect (active high)
• Pin 8 (VCC): Power Supply (1.7V to 5.5V)

Conclusion

The 24C08 is a highly reliable and versatile I