UPD4217405-50
Description
The µPD42S17405, 4217405 are 4,194,304 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 µPD42S17405 can execute CAS before RAS self refresh. The µPD42S17405, 4217405 are packaged in 26-pin plastic TSOP (II) and 26-pin plastic SOJ.
Features
- EDO (Hyper page mode)
- 4,194,304 words by 4 bits organization
- Single +5.0 V ±10 % power supply
- Fast access and cycle time
Power consumption Active (MAX.) 660 m W 605 m W 550 m W
Part number
Access time (MAX.) 50 ns 60 ns 70 ns
R/W cycle time (MIN.) 84 ns 104 ns 124 ns
EDO (Hyper page mode) cycle time (MIN.) 20 ns 25 ns 30 ns
µPD42S17405-50, 4217405-50 µPD42S17405-60, 4217405-60 µPD42S17405-70, 4217405-70
- µPD42S17405 can execute CAS before RAS self refresh
Power consumption at standby (MAX.) 1.4 m W (CMOS level input)
Part number
Refresh cycle 2,048 cycles/128 ms
Refresh CAS before RAS self refresh CAS before RAS refresh RAS only refresh...
