UPD442000A-X中文资料瑞萨数据手册PDF规格书

特性 Features

• 262,144 words by 8 bits organization

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

• Low voltage operation : VCC = 2.7 to 3.6 V (-BB55X, -BB70X, -BB85X)

VCC = 2.2 to 3.6 V (-BC70X, -BC85X)

• 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