参数资料
型号: W29C022-12
厂商: WINBOND ELECTRONICS CORP
元件分类: PROM
英文描述: 256K X 8 FLASH 5V PROM, 120 ns, PDIP32
封装: 0.600 INCH, PLASTIC, DIP-32
文件页数: 1/21页
文件大小: 303K
代理商: W29C022-12
W29C022
256K
× 8 CMOS FLASH MEMORY
Publication Release Date: April 2001
- 1 -
Revision A2
GENERAL DESCRIPTION
The W29C022 is a 2-megabit, 5-volt only CMOS flash memory organized as 256K
× 8 bits. The device
can be written (erased and programmed) in-system with a standard 5V power supply. A 12-volt VPP is
not required. The unique cell architecture of the W29C022 results in fast write (erase/ program)
operations with extremely low current consumption compared to other comparable 5-volt flash memory
products. The device can also be written (erased and programmed) by using standard EPROM
programmers.
FEATURES
Single 5-volt write (erase and program)
operations
Fast page-write operations
128 bytes per page
Page write (erase/program) cycle: 10 mS
(max.)
Effective byte-write (erase/program) cycle
time: 39
S
Optional software-protected data write
Fast chip-erase operation: 50 mS
Two 8 KB boot blocks with lockout
Typical page write (erase/program) cycles:
1K/10K
Read access time: 70/90/120 nS
Ten-year data retention
Software and hardware data protection
Low power consumption
Active current: 25 mA (typ.)
Standby current: 20 A (typ.)
Automatic write (erase/program) timing with
internal VPP generation
End of write (erase/program) detection
Toggle bit
Data polling
Latched address and data
All inputs and outputs directly TTL compatible
JEDEC standard byte-wide pinouts
Available packages: 32-pin 600 mil DIP,
450 mil SOP, TSOP, and 32-pin PLCC
相关PDF资料
PDF描述
W29C022-70 256K X 8 FLASH 5V PROM, 70 ns, PDIP32
W29C040-15B 512K X 8 FLASH 5V PROM, 150 ns, PDIP32
W29C040S-15 512K X 8 FLASH 5V PROM, 150 ns, PDSO32
W29C040-15 512K X 8 FLASH 5V PROM, 150 ns, PDIP32
W29C040S-12B 512K X 8 FLASH 5V PROM, 120 ns, PDSO32
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