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W29C020, W29C020-12, W29C020-12/90

Table of contents:
Info of W29C020
Info of W29C020-12
Info of W29C020-12/90

W29C020, W29C020-12, W29C020-12/90 Selling Leads, Datasheet

MFG:BT Package Cooled:DIP D/C:09+

W29C020, W29C020-12, W29C020-12/90 Picture

W29C020, W29C020-12, W29C020-12/90 Datasheet download

Five Points

Part Number: W29C020

MFG: BT

Package Cooled: DIP

D/C: 09+

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W29C020 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 V_PP 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.

W29C020 Maximum Ratings

PARAMETER	RATING	UNIT
Power Supply Voltage to Vss Potential	-0.5 to +7.0	V
Operating Temperature	0 to +70	°C
Storage Temperature	-65 to +150	°C
D.C. Voltage on Any Pin to Ground Potential Except A9	-0.5 to V_DD +1.0	V
Transient Voltage (<20 nS ) on Any Pin to Ground Potential	-1.0 to V_DD +1.0	V
Voltage on A9 and OE Pin to Ground Potential	-0.5 to 12.5	V

W29C020 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 mS
   - 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 mA (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

W29C020 Connection Diagram

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