W39V080A

Publication Release Date: Dec. 28, 2005

- 3 -

Revision A4

1.

GENERAL DESCRIPTION

The W39V080A is an 8-megabit, 3.3-volt only CMOS flash memory organized as 1M

× 8 bits. For

flexible erase capability, the 8Mbits of data are divided into 16 uniform sectors of 64 Kbytes. The

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

is required for accelerated program. The unique cell architecture of the W39V080A 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. The device can also be

programmed and erased using standard EPROM programmers.

2.

FEATURES

Single 3.3-volt operations:

− 3.3-volt Read

− 3.3-volt Erase

− 3.3-volt Program

Fast Program operation:

− VPP = 12V

− Byte-by-Byte programming: 9 μS (typ.)

Fast Erase operation:

− Sector erase 0.9 Sec. (tpy.)

Fast Read access time: Tkq 11 nS

Endurance: 30K cycles (typ.)

Twenty-year data retention

16 Even sectors with 64K bytes

Any individual sector can be erased

Dual BIOS function

− Full-chip Partition with 8M-bit or Dual-block

Partition with 4M-bit

Hardware protection:

− #TBL supports 64-Kbyte Boot Block

hardware protection

− #WP supports the whole chip except Boot

Block hardware protection

Ready/#Busy output (RY/#BY)

− Detect program or erase cycle completion

Hardware reset pin (#RESET)

− Reset the internal state machine to the

read mode

VPP input pin

− Acceleration (ACC) function accelerates

program timing

Low power consumption

− Read Active current: 15 mA (typ. for LPC

mode)

Automatic program and erase timing with

End of program or erase detection

− Toggle bit

− Data polling

Latched address and data

TTL compatible I/O

Available packages: 32L PLCC, 32L STSOP,

40L TSOP(10 x 20 mm), 32L PLCC Lead

free, 32L STSOP Lead free and 40L TSOP

(10 x 20 mm) Lead free