24LC22A-I/SN Part Information
Details for 24LC22A-I/SN by Microchip Technology
24LC22A
Part 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 (1 Kbit) and Bidirectional mode (2 Kbit). 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 I 2 C™Compatible bus. If it detects a valid control byte from the master, it 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 is available in standard 8-pin PDIP and SOIC packages.
Part Downloads
Download PCB Footprint from Ultra Librarian
Part Features
- Single Supply with Operation Down to 2.5V
- Supports Enhanced EDIDu2122 (E-EDIDu2122) 1.3
- Completely Implements DDC1u2122/DDC2u2122 Interface for Monitor Identification, Including Recovery to DDC1
- 2 Kbit Serial EEPROM Low-Power CMOS Technology:
- 2-Wire Serial Interface Bus, I2Cu2122 Compatible
- 100 kHz (2.5V) and 400 kHz (5V) Compatibility
- Self-Timed Write Cycle (including Auto-Erase)
- Page-Write Buffer for up to Eight Bytes
- 1,000,000 Erase/Write Cycles
- Data Retention >200 years
Part Specifications
| E/W Cycles | 1000000 |
| Density (Organization) | 2k bits (x8) |
| Endurance | 1,000,000 |
| Max. Clock Freq. | 400 kHz |
| Max. Stand By Current (µA) | 30 |
| Memory Organization | 1 |
| Min CLock Freq. | 100 KHz |
| Operating Voltage Min. (V) | 2.5 |
| Oper Voltage Max (V) | 5.5 |
| Page Size (bytes) | 8 |
| ProgMemoryKB | 0.25 |
| Write Current | 3 |
| Write Protected | True |
| Write Speed (ms) | 10 |
| Address Pins | 3 |
| ESD | 4000V |
| Memory Org | x8 |
| Memory Size | 2K |
| Memory Size Num | 2000 |
| Read Current | 1 |
| Write Protect Scheme | None |
| Comments | VESA dual mode; pin 7 = VCLK. |
| Temperature Range | -40C to +85C |
Alternative Part Descriptions
- Serial EEPROM, I2C, 2K, 256 x 8, SOIC | RS Components
- EEPROM, 2KBIT, -40 TO 85DEG C ROHS COMPLIANT: YES | Newark Electronics
- EEPROM Serial-I2C 2K-bit 256 x 8 3.3V/5V 8-Pin SOIC N | Avnet America
- Microchip 24LC22A-I/SN EEPROM Memory, 2kb, 3500ns, 2.5 - 5.5 V 8-Pin SOIC | Allied Electronics & Automation
- EEPROM Serial-I2C 2K-bit 256 x 8 3.3V/5V 8-Pin SOIC N | Avnet Europe
- 24LC22 Series 2 Kb 2.5 V Dual Mode Serial I2C Serial EEPROM - SOIC-8 | Future Electronics
