HM62256数据手册HITACHI中文资料规格书

特性 Features

• High speed: Fast Access time 85/100/120/150 ns (max)
• Low Power
  Standby: 200 µW (typ)/ 10µW (L/L-SL version)
  Operation: 40 mW (typ) (f = 1 MHz)
• Single 5 V supply
• Completely static RAM : No clock or timing strobe required
• Equal access and cycle times
• Common data input and output: Three state output
• Directly TTL compatible - All inputs and outputs
• Battery back up operation capability (L/L-SL version)