UPD444012A-X中文资料瑞萨数据手册PDF规格书

特性 Features

• 262,144 words by 16 bits organization

• Fast access time: 50, 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