UPD485505中文资料瑞萨数据手册PDF规格书

特性 Features

• 5,048 words by 8 bits

• Asynchronous read/write operations available

• Variable length delay bits; 21 to 5,048 bits (Cycle time: 25 ns)

15 to 5,048 bits (Cycle time: 35 ns)

• Power supply voltage VCC = 5.0 V ± 0.5 V

• Suitable for sampling one line of A3 size paper (16 dots/mm)

• All input/output TTL compatible

• 3-state output

• Full static operation; data hold time = infinity