24LC41

24LC41 1K/4K 2.5V Dual Mode, Dual Port I2C™ Serial EEPROM FEATURES Single supply with operation down to 2.5V Completely implements DDC1™/DDC2™ interface for monitor identification Separate high speed 2-wire bus for microcontroller access to 4K-bit Serial EEPROM Low power CMOS technology 2 mA active current typical 20 µA standby current typical at 5.5V Dual 2-wire serial interface bus Hardware write-protect for both ports Self-timed write cycle (including auto-erase) Page-write buffer for up to 8 bytes (DDC port) or 16 bytes (4K Port) 100 kHz (2.5V) and 400 kHz (5V) compatibility 1,000,000 erase/write cycles guaranteed Data retention > 40 years 8-pin PDIP package Available for extended temperature ranges +70°C - Commercial (C): 0°C to - Industrial (I): -40°C to +85°C PACKAGE TYPE PDIP DSCL VCLK/DWP VSS MSDA 1 2 3 4 24LC41 8 7 6 5 DSDA VCC MWP MSCL BLOCK DIAGRAM DDC Monitor Port DSDA EDID Table 1K Bit VCLK/DWP DSCL Microcontroller Access Port MSDA 4K Bit Serial EEPROM DESCRIPTION The Microchip Technology Inc. 24LC41 is a dual-port 128 x 8 and 512 x 8-bit Electrically Erasable PROM (EEPROM). This device is designed for use in applications requiring storage and serial transmission of configuration and control information. Three modes of operation have been implemented: Transmit-Only Mode for the DDC Monitor Port Bi-directional Mode for the DDC Monitor Port Bi-directional, industry-standard 2-wire bus for the 4K Microcontroller Access Port Upo...