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參數(shù)資料
| 型號： | W29C040T-90N |
| 英文描述： | EEPROM|FLASH|512KX8|CMOS|TSSOP|32PIN|PLASTIC |
| 中文描述： | 的EEPROM | FLASH動畫| 512KX8 |的CMOS | TSSOP封裝| 32腳|塑料 |
| 文件頁數(shù)： | 1/22頁 |
| 文件大小： | 308K |
| 代理商： | W29C040T-90N |
W29C020C
256K
′
8 CMOS FLASH MEMORY
Publication Release Date: February 18, 2002
- 1 -
Revision A4
GENERAL DESCRIPTION
The W29C020C 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
V
PP
is not required. The unique cell architecture of the W29C020C 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
μ
S
Optional software-protected data write
Fast chip-erase operation: 50 mS
Two 8 KB boot blocks with lockout
Whole chip cycling: 10K (typ.)
Read access time: 70/90/120 nS
Twenty-year data retention
Software and hardware data protection
Low power consumption
Active current: 25 mA (typ.)
Standby current: 20
μ
A (typ.)
Automatic write (erase/program) timing with
internal V
PP
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, 32-pin
TSOP, and 32-pin PLCC
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| W29C020CP12N | x8 Flash EEPROM |
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| W29C020CT90N | EEPROM|FLASH|256KX8|CMOS|TSSOP|32PIN|PLASTIC |
| W29C040-90BN | EEPROM|FLASH|512KX8|CMOS|DIP|32PIN|PLASTIC |
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