AM24LC21 is a 128 x 8-bit dual-mode Electrically Erasable PROM manufactured by Anachip Corp. It features single supply with operation down to 2.5V, completely implements DDC1/DDC2 interface for monitor identification, including recovery to DDC1, low power CMOS technology, 1 mA typical active current, 10 uA standby current typical at 5.5V, 2-wire serial interface bus, I2C compatible, 100Khz (2.5V) and 400Khz (5V) compatibility, Self-timed write cycle, Hardware write-protect pin, Page-write buffer, 1,000,000 erase/write cycles, Data retention > 40 years, 8-pin PDIP and SOP packages, Available for extended temperature ranges Commercial (C): 0°C to +70°C Industrial (I): -40°C to +85°C
The Anachip AM24LC21 is a 1K-bits (128 x 8) Electrically Erasable PROM designed for storing and transmitting configuration and control information. It features a dual-mode interface: a transmit-only mode for unidirectional data output and a bi-directional mode for standard read/write operations compatible with I2C protocols. The device operates on a single supply voltage ranging from 2.5V to 5.5V.
| Memory Capacity | 1K-bits (128 x 8) |
|---|---|
| Operating Voltage | 2.5V to 5.5V |
| Active Current | 1 mA typical |
| Standby Current | 10 uA typical at 5.5V |
| Interface Compatibility | I2C compatible |
| Clock Frequency | 100Khz (2.5V) and 400Khz (5V) |
| Endurance | 1,000,000 erase/write cycles |
| Data Retention | > 40 years |
| Packages | 8-pin PDIP and SOP |
| Temperature Ranges | Commercial: 0°C to +70°C, Industrial: -40°C to +85°C |
The device operates in transmit-only mode and bi-directional mode.
A valid high to low transition on the SCL pin causes the device to enter bi-directional mode.
The typical active current is 1 mA.
The device supports operation down to 2.5V.