Premier Farnell
flash 4mb, smd, 29lv040, tsop32; memory type:flash, nor; interface type:parallel; memory size:4mbit; memory configuration:512k x 8bit; time, access:200ns; sector type:top or bottom boot; voltage, memory vcc:3v; voltage, supply min:3v; voltage, supply max:3.6v; termination type:smd; case style:tsop; no. of pins:32; operating temperature range:-40°c to + 85°c; base number:29; ic generic number:29lv040; logic function number:29lv040; temp, op. max:85°c; temp, op. min:-40°c; voltage, programming:3.3v; voltage, vcc:3v
http://grh.premierfarnell.com/grh.aspx?mid=1000082&sku=AT29L... Newark
flash 4mb, smd, 29lv040, tsop32; memory type:flash, nor; interface type:parallel; memory size:4mbit; memory configuration:512k x 8bit; time, access:200ns; sector type:top or bottom boot; voltage, memory vcc:3v; voltage, supply ;rohs compliant: yes
http://www.newark.com/jsp/search/productdetail.jsp?SKU=96K65... 
