W39V080A
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
internal V
PP
generation
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
-3-
Publication Release Date: Dec. 28, 2005
Revision A4
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