IC: pamięć CMOS; 256K (32K x 8); 200ns; Vcc 5.0V ±10%; Icc max 25mA; Icc standby 0,2mA; -40C...+85*C; CMOS/TTL I/O; 1,45g; JLCC32-UV;
Atmel AT27C256R Low Power CMOS 256K UV Erasable EPROM, Industrial operating range
Datasheet: www.datasheet.hk/view_online.php?id=1686705&file=0344at27c256r-17dm_2538050.pdf