EC24C512B

512K bitsTwo-wire Serial EEPROM

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4I09N-Rev.F001

General Description

The EC24C512B are EEPROM devices that use

the

industrial

standard

2-wire

interface

for

communications. The EC24C512B contains a

memory array of 512K-bits (65,536x8), which is

organized in 128-byte per page. The EEPROM

can operate in a wide voltage range from 1.7V to

5.5V which fits most application. This product can

provide a low-power 2-wire EEPROM solution.

The device is offered in Lead-free, RoHS, halogen

free or Green. The available package types are 8-

pin MSOP . The EC24C512B is compatible with

the industrial standard 2-wire bus protocol. If in

case the bus is not responded, a new sent Op-

code command will reset the bus and the device

will respond correctly. The simple bus consists of

the Serial Clock wire (SCL) and the Serial Data

wire (SDA).

Utilizing such bus protocol, a Master device, such

as a microcontroller, can usually control one or

more Slave devices, alike this EC24C512B. The

bit stream over the SDA line includes a series of

bytes, which identifies a particular Slave device,

an instruction, an address within that Slave

device, and a series of data, if appropriate. The

EC24C512B also has a Write Protect pin (WP) to allow

blocking any write operations over specified memory area.

Under no circumstance, the device will be hung up. In

order to refrain the state machine entering into a wrong

state during power-up sequence or a power toggle off-on

condition, a power on reset circuit is embedded. During

power-up, the device does not respond to any instructions

passes the power on reset threshold, the device is reset

and enters into the Standby mode. This would also avoid

any inadvertent Write operations during power-up stage.

During power-down process, the device will enter into

threshold voltage. In addition, the device will be in standby

mode after receiving the Stop command, provided that no

internal write operation is in progress. Nevertheless, it is

operating level.

Features

● Two-Wire Serial Interface, I C TM Compatible

– Bi-directional data transfer protocol

● Wide-voltage Operation

● Speed: 400 KHz (1.7V) and 1 MHz (2.5V~5.5V)

uA, 1.7V

● Operating current (max.): 2 mA, 1.7V

● Hardware Data Protection

– Write Protect Pin

● Sequential & Random Read Features

● Memory organization: 65,536 x 8 bits

● Page Size: 128 bytes

● Page write mode

– Up to 128 bytes per page write

● Self timed write cycle with auto clear: 5ms (max.)

● Filtered inputs for noise suppression

● High-reliability

– Endurance: 1 million cycles

– Data retention: 100 years

● Industrial temperature grades

● Packages: MSOP 8L

● Lead-free, RoHS, Halogen free, Green