
Mosel Vitelic Corporation
Description
The V54C3256(16/80/40)4V(T/S/B) is a four bank Synchronous DRAM organized as 4 banks x 4Mbit x 16, 4 banks x 8Mbit x 8, or 4 banks x 16Mbit x 4. The V54C3256(16/80/40)4V(T/S/B) achieves high speed data transfer rates up to 166 MHz by employing a chip architecture that prefetches multi ple bits and then synchronizes the output data to a
system clock
FEATUREs
■ 4 banks x 4Mbit x 16 organization
■ 4 banks x 8Mbit x 8 organization
■ 4 banks x16Mbit x 4 organization
■ High speed data transfer rates up to 166 MHz
■ Full Synchronous Dynamic RAM, with all signals referenced to clock rising edge
■ Single Pulsed RAS Interface
■ Data Mask for Read/Write Control
■ Four Banks controlled by BA0 & BA1
■ Programmable CAS Latency: 2, 3
■ Programmable Wrap Sequence: Sequential or Interleave
■ Programmable Burst Length:
1, 2, 4, 8 for Sequential Type
1, 2, 4, 8 for Interleave Type
■ Multiple Burst Read with Single Write Operation
■ Automatic and Controlled Precharge Command
■ Random Column Address every CLK (1-N Rule)
■ Power Down Mode
■ Auto Refresh and Self Refresh
■ Refresh Interval: 8192 cycles/64 ms
■ Available in 54 Pin TSOP II, 60 Ball WBGA and SOC BGA
■ LVTTL Interface
■ Single +3.3 V ±0.3 V Power Supply