| 24LC22A Description | | The Microchip Technology Inc. 24LC22A is a 256 x 8-bit dual-mode Electrically Erasable PROM. This device 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 (1Kbit) and Bi-directional Mode (2Kbit). Upon power-up, the device 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 device 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, it will switch into Bi-Directional 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 is available in standard 8-pin DIP and SOIC packages. | | 24LC22A Vendor | | Microchip | | 24LC22A Categories | | | 24LC22A Datasheet and Application Notes | | | Parameter | Value | | Smart Card Support | No | | Max. Clock Freq. | 400 kHz | | Write Speed (ms) | 10 | | Density (Organization) | 2k bits (x8) | | Cascade | 0 | | Write Protected | Yes | | Pb-Free Available | Yes | | Endurance | 1,000,000 | | Page Size (bytes) | 22 | | Op. Volt Min. (V) | 2.5 | | Op. Volt Max. (V) | 5.5 | | Temp Range (°C) | -40°C to +85°C | | Products related to 24LC22A | | 24LC22A-I/P 24LC22AT-I/SN 24LC22A-I/SN |
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