UPD448012-BXXX中文資料瑞薩數(shù)據(jù)手冊PDF規(guī)格書

Features

? 524,288 words by 16 bits organization

? Fast access time: 55, 70, 85, 100, 120 ns (MAX.)

? Byte data control: /LB (I/O1 - I/O8), /UB (I/O9 - I/O16)

? Low voltage operation

(B version: VCC = 2.7 to 3.6 V, C version: VCC = 2.2 to 3.6 V)

? Low VCC data retention : 1.0 V (MIN.)

? Operating ambient temperature: TA = –25 to +85°C

? Output Enable input for easy application

? Two Chip Enable inputs: /CE1, CE2