Cypress Semiconductor Corp 44-TSOP (0.400, 10.16mm Width) IC, FRAM, 4MB, 55NS, TSOP-44; Memory Size:4Mbit; NVRAM Memory Configuration:512K x 8bit; Supply Voltage Min:2.7V; Supply Voltage Max:3.6V; Memory Case Style:TSOP; No. of Pins:44; IC Interface Type:Parallel; Access Time:55ns ;RoHS Compliant: Yes