DESCRIPTION
The MD51V64405 is a 16,777,216-word x 4-bit dynamic RAM fabricated in Okis silicon-gate CMOS technology. The MD51V64405 achieves high integration, high-speed operation, and low-power consumption because Oki manufactures the device in a quadruple-layer polysilicon/double-layer metal CMOS process. The MD51V64405 is available in a 32-pin plastic SOJ or 32-pin plastic TSOP.

FEATURES
• 16,777,216-word x 4-bit configuration
• Single 3.3 V power supply, ±0.3 V tolerance
• Input : LVTTL compatible, low input capacitance
• Output : LVTTL compatible, 3-state
• Refresh :
    RAS-only refresh : 8192 cycles/64 ms
    CAS before RAS refresh, hidden refresh : 4096 cycles/64 ms
• Fast page mode with EDO, read modify write capability
• CAS before RAS refresh, hidden refresh, RAS-only refresh capability
• Package options:
    32-pin 400 mil plastic SOJ (SOJ32-P-400-1.27) (Product : MD51V64405-xxJA)
    32-pin 400 mil plastic TSOP (TSOPII32-P-400-1.27-K) (Product : MD51V64405-xxTA)
                                                                                            xx indicates speed rank.