W39V080A Datasheet, PDF (3/34 Pages) Winbond – 1M × 8 CMOS FLASH MEMORY WITH LPC INTERFACE

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
y Single 3.3-volt operations:
− 3.3-volt Read
− 3.3-volt Erase
− 3.3-volt Program
y Fast Program operation:
− VPP = 12V
− Byte-by-Byte programming: 9 μS (typ.)
y Fast Erase operation:
− Sector erase 0.9 Sec. (tpy.)
y Fast Read access time: Tkq 11 nS
y Endurance: 30K cycles (typ.)
y Twenty-year data retention
y 16 Even sectors with 64K bytes
y Any individual sector can be erased
y Dual BIOS function
− Full-chip Partition with 8M-bit or Dual-block
Partition with 4M-bit
y Hardware protection:
− #TBL supports 64-Kbyte Boot Block
hardware protection
− #WP supports the whole chip except Boot
Block hardware protection
y Ready/#Busy output (RY/#BY)
− Detect program or erase cycle completion
y Hardware reset pin (#RESET)
− Reset the internal state machine to the
read mode
y VPP input pin
− Acceleration (ACC) function accelerates
program timing
y Low power consumption
− Read Active current: 15 mA (typ. for LPC
mode)
y Automatic program and erase timing with
internal VPP generation
y End of program or erase detection
− Toggle bit
− Data polling
y Latched address and data
y TTL compatible I/O
y 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
Publication Release Date: Dec. 28, 2005
-3-
Revision A4