UPD4264405 Datasheet 64m-bit Dynamic Ram

Manufacturer: NEC (now Renesas Electronics)

Overview: DATA SHEET MOS INTEGRATED CIRCUIT µPD4264405, 42S65405, 4265405 64 M-BIT DYNAMIC RAM 16 M-WORD BY 4-BIT,.

Datasheet Details

The µPD4264405, 42S65405, 4265405 are 16,777,216 words by 4 bits CMOS dynamic RAMs with optional EDO.

EDO is a kind of the page mode and is useful for the read operation.

Besides, the µPD42S65405 can execute CAS before RAS self refresh.

EDO (Hyper page mode).
16,777,216 words by 4 bits organization.
Single +3.3 V ± 0.3 V power supply.
Fast access and cycle time Part number Power consumption Active (MAX. ) 360 mW Access time (MAX. ) 50 ns R/W cycle time (MIN. ) 84 ns EDO (Hyper page mode) cycle time (MIN. ) 20 ns µPD4264405-A50 µPD42S65405-A50, 4265405-A50 µPD4264405-A60 µPD42S65405-A60, 4265405-A60 468 mW 324 mW 396 mW 60 ns 104 ns 25 ns.
The µPD42S65405 can execute CAS before R.