UPD4264405
Overview
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.
- 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 RAS self refresh. Part number Refrech cycle 4,096 cycles/128 ms Refresh RAS only refresh, Normal read/write, CAS before RAS self refresh, CAS before RAS refresh, Hidden refresh RAS only refresh, Normal read/write CAS before RAS refresh, Hidden refresh RAS only refresh, Normal read/write, CAS before RAS refresh, Hidden refresh Power consumption at standby (MAX.) 0.72 mW (CMOS level input) 1.8 mW (CMOS level input) µPD42S65405 µPD4264405 8,192 cycles/64 ms 4,096 cycles/64 ms µPD4265405 4,096 cycles/64 ms The information in this document is subject to change without notice. Document No. M10856EJ6V0DS00 (6th edition) Date Published September 1997 N Printed in Japan The mark shows major revised points. © 1995 µPD4264405, 42S65405, 4265405
