FEATURES
• Single power supply: 3.3 V ± 0.3 V
• 512 Rows × 512 Column × 4 bits
• Fast FIFO (First-in First-out) operation
• High speed asynchronous serial access
   Read/Write cycle time 30 ns/40 ns
   Access time 30 ns/35 ns
• Functional compatibility with OKI MSM51V8222A
• Self refresh (No refresh control is required)
• Package options:
   16-pin 300 mil plastic DIP (DIP16-P-300-2.54) (Product: MSM51V4222C-xxRA)
   26/20-pin 300 mil plastic SOJ (SOJ26/20-P-300-1.27) (Product: MSM51V4222C-xxJA)
   20-pin 400 mil plastic ZIP (ZIP20-P-400-1.27) (Product: MSM51V4222C-xxRD)
                                                                             xx indicates speed rank.