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W39V040B

廠商:
Winbond
類別:
并行FLASH
包裝:
-
封裝:
PLCC 32/STSOP 32
無鉛情況/ROHS:
無鉛
描述:
The W39V040B is a 4-megabit, 3.3-...

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  • 參數(shù)
  • 描述
  • 文檔
參數(shù) 數(shù)值
Voltage 3.3V
Package PLCC 32/STSOP 32
Status EOL
Density 4Mbit
comment Obsolete
Organization 512K x 8
Remark LPC
RoHS Y
Speed 33MHz
Temp 0 to +70

Description
The W39V040B is a 4-megabit, 3.3-volt only CMOS flash memory organized as 512K ? 8 bits. For flexible erase capability, the 4Mbits of data are divided into 8 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 W39V040B results in fast program/erase operations with extremely low current consumption. This device can operate at two modes, Programmer bus interface mode, Low pin count (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
Features
Single 3.3-volt operations
Fast Read access time:Tkq 11ns
Endurance: 10K cycles (typ)?
8 Even sectors with 64K bytes each,
Hardware protection: 64K byte Top Boot Block with lockout protection/ #TBL & #WP support the whole chip hardware protection
Automatic program and erase timing with internal VPP operation
twenty-year data retentions
TTL compatible I/O
JEDEC standard byte-wide pinouts

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