24LC02

HT24LC01/02 1K/2K 2-Wire CMOS Serial EEPROM Features Operating voltage: 2.4V~5.5V Low power consumption – Operation: 5mA max. – Standby: 5µA max. Internal organization – 1K (HT24LC01):128×8 – 2K (HT24LC02): 256×8 2-wire serial interface Write cycle time: 5ms max. Automatic erase-before-write operation Partial page write allowed 8-byte Page write modes Write operation with built-in timer Hardware controlled write protection 40-year data retention 106 erase/write cycles per word 8-pin DIP/SOP package 8-pin TSSOP (HT24LC02 only) Commerical temperature range (0°C to +70°C) General Description The HT24LC01/02 is a 1K/2K-bit serial read/write non-volatile memory device using the CMOS floating gate process. Its 1024/2048 bits of memory are organized into 128/256 words and each word is 8 bits. The device is optimized for use in many industrial and commercial applications where low power and low voltage operation are essential. Up to eight HT24LC01/02 devices may be connected to the same two-wire bus. The HT24LC01/02 is guaranteed for 1M erase/write cycles and 40-year data retention. Block Diagram Pin Assignment 1 6th May ’99 HT24LC01/02 Pin Description Pin Name A0~A2 SDA SCL WP VSS VCC I/O I I/O I I — I Address inputs Serial data inputs/output Serial clock data input Write protect Negative power supply Positive power supply Description Absolute Maximum Ratings Operating Temperature (Commercial) .................................................