W29C020S-70B datasheet(1/21 Pages) WINBOND

No de pièce	W29C020S-70B

Description	256K X 8 CMOS FLASH MEMORY

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Fabricant	WINBOND [Winbond]

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W29C020

256K

× 8 CMOS FLASH MEMORY

Publication Release Date: February 1998

- 1 -

Revision A3

GENERAL DESCRIPTION

The W29C020 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 W29C020 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

µS

− Optional software-protected data write

• Fast chip-erase operation: 50 mS

• Two 8 KB boot blocks with lockout

• Typical page write (erase/program) cycles:

100/1K/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 µA (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

Numéro de pièce similaire - W29C020S-70B

Fabricant	No de pièce	Fiches technique	Description
Winbond	W29C020C	194Kb / 21P	256K X 8 CMOS FLASH MEMORY
	W29C020C-12	194Kb / 21P	256K X 8 CMOS FLASH MEMORY
	W29C020C-12B	194Kb / 21P	256K X 8 CMOS FLASH MEMORY
	W29C020C-70	194Kb / 21P	256K X 8 CMOS FLASH MEMORY
	W29C020C-70B	194Kb / 21P	256K X 8 CMOS FLASH MEMORY

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Fabricant	No de pièce	Fiches technique	Description
Winbond	W49F020	190Kb / 21P	256K X 8 CMOS FLASH MEMORY
	W49F002U	303Kb / 23P	256K X 8 CMOS FLASH MEMORY
	W49L201	190Kb / 23P	256K X 8 CMOS FLASH MEMORY
	W29C020C	194Kb / 21P	256K X 8 CMOS FLASH MEMORY
	W29C022	166Kb / 20P	256K x 8 CMOS FLASH MEMORY
Intel Corporation	28F020	878Kb / 38P	28F020 2048K (256K X 8) CMOS FLASH MEMORY
Macronix International	MX29F002	608Kb / 51P	2M-BIT [256K x 8] CMOS FLASH MEMORY
	MX28F2000T	115Kb / 31P	2M-BIT [256K x 8] CMOS FLASH MEMORY
	MX29F022	595Kb / 46P	2M-BIT[256K x 8]CMOS FLASH MEMORY
	MX28F2000P	191Kb / 33P	2M-BIT [256K x 8] CMOS FLASH MEMORY

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W29C020S-70B Fiches technique(PDF) 1 Page - Winbond

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