UPD442012A-X中文资料瑞萨数据手册PDF规格书

特性 Features

• 131,072 words by 16 bits organization

• Fast access time : 50, 55, 70, 85 ns (MAX.)

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

• Low voltage operation

(BB version : VCC = 2.7 to 3.6 V, BC 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