256K x 8 CMOS FLASH MEMORY WITH LPC INTERFACE

 

 

 

GENERAL DESCRIPTION

The W49V002A is a 2-megabit, 3.3-volt only CMOS flash memory organized as 256K  ´ 8 bits. The 

device can be programmed and erased in-system with a standard 3.3V power supply. A 12-volt VPP is 

not required. The unique cell architecture of the W49V002A results in fast program/erase operations with 

extremely low current consumption. This device can operate at two modes, Programmer bus interface 

mode and LPC bus interface mode. As in the Programmer interface mode, it acts like the traditional

flash but with a multiplexed address inputs. But in the LPC interface mode, this device complies with the 

Intel LPC specification 1.0. The device can also be programmed and erased using standard EPROM 

programmers.

 

 

 

FEATURES

·Single 3.3-volt operations:

3.3-volt Read

3.3-volt Erase

3.3-volt Program

Fast Program operation: 

Byte-by-Byte programming: 50 mS (typ.)

Fast Erase operation: 150 mS (typ.)

Endurance: 10K cycles (typ.)

Twenty-year data retention

Hardware data protection

#TBL & #WP serve as hardware protection

One 16K bytes Boot Block with lockout 

protection

Two 8K bytes Parameter Blocks

Four Main Memory Blocks (with 32K bytes, 64K

bytes, 64K bytes, 64K bytes each)

Low power consumption

Active current: 25 mA (typ.)

Standby current: 20 mA (typ.)

Automatic program and erase timing with 

internal VPP generation

End of program or erase detection

Toggle bit

Data polling

Latched address and data

TTL compatible I/O

Available packages: 32L PLCC and 32L

STSOP

 

 

Because of wholesale price is different from sample price, our website can not state. Please send your required part number via email to Sales@hkmjd.com or add our skype id mjdccm898 for online talking.As well as welcome you call us : 0755-83957301  We will send offer for you;  Sometimes manufacturer's price is unstable, so we don't adjust price in time. if you feel price is a little high for you, just feel free to contact us for consultation. Thank you for your support ！

 

 

批發(fā)與零售價位不同,無法一一明示,詳情請通過郵件或客服咨詢(國內(nèi)銷售部電話:0755-83957301,企業(yè)QQ: 2850151585), 由于電子元器件價格不穩(wěn)定,時常有稍許變動,本公司未能及時調(diào)整,如您覺得售價不適，請與我們說明并適當議價,謝謝支持。