STMicroelectronics

The M24C64 is a 64-Kbit I2C-compatible EEPROM (electrically erasable programmable memory) organized as 8K × 8 bits. Over an ambient temperature range of -40 °C / +85 °C, the M24C64-W can operate with a supply voltage from 2.5 V to 5.5 V, the M24C64-R can operate with a supply voltage from 1.8 V to 5.5 V, and the M24C64-F and M24C64-DF can operate with a supply voltage from 1.7 V to 5.5 V ( the M24C64-F can also operate down to 1.6 V, under some restricting conditions). The M24C64-D offers an additional page, named the identification page (32 byte). The identification page can be used to store sensitive application parameters which can be (later) permanently locked in read-only mode.

The M24C64 is a 64-Kbit I2C-compatible EEPROM (electrically erasable programmable memory) organized as 8K × 8 bits. Over an ambient temperature range of -40 °C / +85 °C, the M24C64-W can operate with a supply voltage from 2.5 V to 5.5 V, the M24C64-R can operate with a supply voltage from 1.8 V to 5.5 V, and the M24C64-F and M24C64-DF can operate with a supply voltage from 1.7 V to 5.5 V ( the M24C64-F can also operate down to 1.6 V, under some restricting conditions). The M24C64-D offers an additional page, named the identification page (32 byte). The identification page can be used to store sensitive application parameters which can be (later) permanently locked in read-only mode.

This EEPROM device supports standard I²C instruction set. The M24C64X is a 64-Kbit I2C-compatible EEPROM (electrically erasable programmable memory) organized as 8 K × 8 bits and delivered in a 4-ball WLCSP package. The M24C64X can operate with a supply voltage of 1.7 V to 5 V, over an ambient temperature range of -40 °C/+85 °C. It can also operate down to 1.6 V, under some restricting conditions. The M24C64X offers an additional 8-bit chip enable register for the configurable device address (CDA) and memory write protection feature. On demand, the M24C64X can be delivered with a specific chip enable address. Thanks to these two features, the device offers the configurable device address, authorizing, through software, to configure up to eight possibilities of chip enable address, and the write protection of the whole memory array, by setting, always through software, the software write protection bit.

M24LR-DISCOVERY is a ready-to-use kit which features the M24LR04E-R Dual Interface EEPROM IC. It addresses a wide range of applications such as industrial or medical equipment and consumer electronics. This kit contains 2 different boards, as shown in the figure on cover page. The M24LR board is battery-less and is powered by RFID readers or NFC-enabled phones supporting ISO/IEC 15693. The RF transceiver board is an RFID reader demonstration board and is composed, among other parts, of a CR95HF (13.56 MHz multi-protocol contactless transceiver IC with SPI and UART serial access). This board has to be plugged in to a PC and comes with a demonstration software. The M24LR board also works with Android NFC phones supporting ISO/IEC 15693. An application called NfcV-Reader is available on Google Play. Performance may vary depending on NFC phone's RF management.

The M24LR04E-R device is a Dynamic NFC/RFID tag IC with a dual-interface, electrically erasable programmable memory (EEPROM). The logic scheme is shown in Figure 1. It features an I2C interface and can be operated from a VCCpower supply. It is also a contactless memory powered by the received carrier electromagnetic wave. The M24LR04E-R is organized as 512 × 8 bits in the I2C mode and as 128 × 32 bits in RF mode. The M24LR04E-R also features an energy harvesting analog output, as well as a user-configurable digital output pin toggling during either RF write in progress or RF busy mode.

The M24LR64E-R device is a Dynamic NFC/RFID tag IC with a dual-interface, electrically erasable programmable memory (EEPROM). It features an I2C interface and can be operated from a VCCpower supply. It is also a contactless memory powered by the received carrier electromagnetic wave. The M24LR64E-R is organized as 8192 × 8 bits in the I2C mode and as 2048 × 32 bits in the ISO 15693 and ISO 18000-3 mode 1 RF mode. The M24LR64E-R also features an energy harvesting analog output, as well as a user-configurable digital output pin toggling during either RF write in progress or RF busy mode.

The M24M01-A125 is a 1-Mbit serial EEPROM Automotive grade device operating up to 125 °C. The M24M01-A125 is compliant with the very high level of reliability defined by the Automotive standard AEC-Q100 grade 1. The device is accessed by a simple serial I2C compatible interface running up to 1 MHz. The memory array is based on advanced true EEPROM technology (Electrically Erasable PROgrammable Memory). The M24M01-A125 is a byte-alterable memory (128 K × 8 bits) organized as 512 pages of 256 bytes in which the data integrity is significantly improved with an embedded Error Correction Code logic. The M24M01-A125 offers an additional Identification Page (256 bytes) in which the ST device identification can be read. This page can also be used to store sensitive application parameters which can be later permanently locked in read-only mode.