參數(shù)資料
型號(hào)： W49V002FAP
廠商： WINBOND ELECTRONICS CORP
元件分類： PROM
英文描述： 256K X 8 CMOS FLASH MEMORY WITH FWH INTERFACE
中文描述： 256K X 8 FLASH 3.3V PROM, 11 ns, PQCC32
封裝： PLASTIC, LCC-32
文件頁(yè)數(shù)： 1/32頁(yè)
文件大?。?/td> 300K
代理商： W49V002FAP
W49V002FA
256K
′
8 CMOS FLASH MEMORY
WITH FWH INTERFACE
Publication Release Date: February 19, 2002
- 1 -
Revision A2
GENERAL DESCRIPTION
The W49V002FA 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 V
PP
is
not required. The unique cell architecture of the W49V002FA results in fast program/erase operations
with extremely low current consumption. This device can operate at two modes, Programmer bus
interface mode and FWH bus interface mode. As in the Programmer interface mode, it acts like the
traditional flash but with a multiplexed address inputs. But in the FWH interface mode, this device
complies with the Intel FWH specification. 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
μ
S (typ.)
Fast erase operation: 150 mS (typ.)
Fast read access time: Tkq 11 nS
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: 40 mA (typ. for FWH)
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
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