24LC22A-I/SN

Product Summary

The 24lc22a-i/sn is a 256 x 8- bit dual-mode electrically erasable PROM. The 24lc22a-i/sn is designed for use in applications requiring storage and serial transmission of configuration and control information. Two modes of operation have been implemented: Transmit-only mode (1 Kbit) and bidirectional mode (2 Kbit). Upon power-up, the 24lc22a-i/sn will be in the transmit-only mode, sending a serial bit stream of the memory array from 00h to 7Fh, clocked by the VCLK pin. A valid high-to-low transition on the SCL pin will cause the 24lc22a-i/sn to enter the transition mode, and look for a valid control byte on the I2C bus. If it detects a valid control byte from the master, the 24lc22a-i/sn will switch into bidirectional mode, with byte selectable read/write capability of the entire 2K memory array using SCL. If no control byte is received, the device will revert to the transmit-Only mode after it receives 128 consecutive VCLK pulses while the SCL pin is idle. The 24lc22a-i/sn is available in standard 8-pin PDIP and SOIC packages.

Parametrics

24lc22a-i/sn absolute maximum ratings: (1)VCC: 7.0V; (2)All inputs and outputs w.r.t. VSS: -0.6V to VCC +1.0V; (3)Storage temperature: -65°C to +150°C; (4)Ambient temp. with power applied: -40°C to +125°C; (5)Soldering temperature of leads (10 seconds): +240°C; (6)ESD protection on all pins: ≥ 4 kV.

Features

24lc22a-i/sn features: (1)Single supply with operation down to 2.5V; (2)Supports enhanced EDID (E-EDID)1.3; (3)Completely implements DDC1/DDC2 interface for monitor identification, including recovery to DDC1; (4)2 kbit serial EEPROM low-power CMOS technology: 1 mA typical active current; 10 uA standby current typical at 5.5V; (5)2-wire serial interface bus, I2C compatible; (6)100 kHz (2.5V)and 400 kHz (5V)compatibility; (7)Self-timed write cycle (including auto-erase); (8)Page-write buffer for up to eight bytes; (9)1,000,000 erase/write cycles; (10)Data retention >200 years; (11)ESD protection >4000V; (12)8-pin PDIP and SOIC packages; (13)Available temperature ranges: Industrial (I)-40°C to +85°C; (14)Pb-free and RoHS compliant.

Diagrams