Datasheet > W29C020CT90N

W29C020CT90N

更新时间： 2024-09-18 23:41:31

品牌	Logo	应用领域
其他 - ETC		内存集成电路光电二极管可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
22页	305K
描述
EEPROM\|FLASH\|256KX8\|CMOS\|TSSOP\|32PIN\|PLASTIC

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W29C020CT90N 数据手册

W29C020C

´ 8 CMOS FLASH MEMORY

256K

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

VPP 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

· Software and hardware data protection

· Low power consumption

· Fast page-write operations

- 128 bytes per page

- Active current: 25 mA (typ.)

- Standby current: 20 mA (typ.)

- Page write (erase/program) cycle: 10 mS

(max.)

· Automatic write (erase/program) timing with

internal VPP generation

- Effective byte-write (erase/program) cycle

time: 39 mS

· End of write (erase/program) detection

- Toggle bit

- 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

- 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

Publication Release Date: February 18, 2002

- 1 -

Revision A4

12 3 4 5 6 7...22

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