EC24C1024A Datasheet, PDF (1/14 Pages) E-CMOS Corporation – 1024K bits Two-wire Serial EEPROM

EC24C1024A
1024K bits Two-wire Serial EEPROM
General Description
The EC24C1024A are EEPROM devices that use
the industrial standard 2-wire interface for
communications. The EC24C1024A contains a
memory array of 1024K-bits (131,072x8), which is
organized in 25-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 SOP, TSSOP.
The EC24C1024A 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 EC24C1024A. 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
EC24C1024A 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
until the supply voltage (VCC) has reached an acceptable
stable level above the reset threshold voltage. Once VCC
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
standby mode, once VCC drops below the power on reset
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
illegal to send a command unless the VCC is within its
operating level.
Features
● Two-Wire Serial Interface, I²C^TM Compatible
– Bi-directional data transfer protocol
● Wide-voltage Operation
– VCC = 1.7V to 5.5V
● Speed: 400 KHz (1.7V) and 1 MHz (2.5V~5.5V)
uA, 1.7V
● Read Operating current (max.): 1 mA, 1.7V
● Write Operating current(max.)：3mA, 1.7V
● Hardware Data Protection
– Write Protect Pin
● Sequential & Random Read Features
● Memory organization: 131,072 x 8 bits
● Page Size: 256 bytes
● Page write mode
– Up to 256 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: SOP/TSSOP 8L
● Lead-free, RoHS, Halogen free, Green
E-CMOS Corp. (www.ecmos.com.tw)
Page 1 of 14
5B13N-Rev.F001