EC24C64C中文资料64K bits Two-wire Serial EEPROM数据手册E-CMOS规格书

描述 Description

The EC24C64C is an industrial    standard electrically erasable programmable read   

only memory (EEPROM) device that utilizes the  industrial standard 2-wire interface for  communications. The EC24C64C contains  a  memory array of 64K bits (8,192x8), which  is  organized  in  32-byte per page.

The EEPROM operates in a wide voltage range from 1.7V to 5.5V, which fits most  application.  The  product  provides low-power operations and low standby current. The device

is offered in Lead-free, RoHS, halogen free or   Green package. The available package types  are  8-pin SOP, TSSOP, DFN, MSOP.

The EC24C64C is compatible to the standard  2-wire bus protocol. The simple bus consists of Serial Clock (SCL) and Serial Data (SDA)  signals. Utilizing such bus protocol, a Master device, such as a microcontroller, can usually

control one or more Slave devices, alike this  EC24C64C.

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   EC24C64C also has a Write Protect

Function via WP pin to cease  from  overwriting  the  data stored inside the memory array.

In order to refrain  the  state  machine  from  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.

This product offers an additional page (Identification Page)

of 32 bytes. The Identification Page can be used to  store

sensitive application parameters which can be (later)

permanently locked in Read-only mode.

特性 Features

● Two-Wire Serial Interface, I2CTM 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)
● Standby current (max.): 1uA, 1.7V
● Operating current (max.): 0.8mA, 5.5V
● Hardware Data Protection
– Write Protect Pin
● Sequential & Random Read Features
● Memory organization: 8,192 x 8 bits
 
 
● Page Size: 32 bytes
● Page write mode
– partial page writes allowed
● Addition write lockable page(identification page)
● Self timed write cycle: 5ms (max.)
● Noise immunity on inputs, besides Schmitt trigger
● High-reliability
– Endurance: 1 million cycles
– Data retention: 100 years
● Industrial temperature grades
● Packages: SOP,TSSOP,MSOP,DFN
● Lead-free, RoHS, Halogen free, Green