器件名称: W29C512AT-90
功能描述: 64 K x 8 CMOS FLASH MEMORY
文件大小: 265.48KB 共20页
简 介:W29C512A 64K × 8 CMOS FLASH MEMORY
GENERAL DESCRIPTION
The W29C512A is a 512K bit, 5-volt only CMOS flash memory organized as 64K × 8 bits. The device can be programmed and erased in-system with a standard 5V power supply. A 12-volt VPP is not required. The unique cell architecture of the W29C512A results in fast program/erase operations with extremely low current consumption (compared to other comparable 5-volt flash memory products). The device can also be programmed and erased using standard EPROM programmers.
FEATURES
Single 5-volt program and erase operations Fast page-write operations Low power consumption
Active current: 50 mA (max.) Standby current: 100 A (max.)
Automatic program timing with internal VPP
128 bytes per page Page program cycle: 10 mS (max.) Effective byte-program cycle time: 39 S Optional software-protected data write
Fast chip-erase operation: 50 mS Read access time: 90 nS Typical page program/erase cycles: 1K (typ.) Ten-year data retention Software and hardware data protection
generation
End of program detection
Toggle bit Data polling
Latched address and data TTL compatible I/O JEDEC standard byte-wide pinouts Available packages: 32-pin PLCC and TSOP
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Publication Release Date: February 5, 2002 Revision A2
W29C512A
PIN CONFIGURATIONS BLOCK DIAGRAM
VDD VSS
A 1 2 4 A7 A6 A5 A4 A3 A2 A1 A0 DQ0 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 A 1 5 3 N C 2 N C V # D W D E N C
#CE #OE #WE
29 28 27 A14 A13 A8 A9 A11 #OE A10 #CE ……
