V58C3643204SAT Datasheet, PDF (1/12 Pages) Mosel Vitelic, Corp – HIGH PERFORMANCE 3.3 VOLT 2M X 32 DDR SDRAM 4 X 512K X 32

MOSEL VITELIC
V58C3643204SAT
HIGH PERFORMANCE
3.3 VOLT 2M X 32 DDR SDRAM
4 X 512K X 32
PRELIMINARY
System Frequency (f_CK)
Clock Cycle Time (t_CK3)
Clock Cycle Time (t_CK4)
45
225MHz
4.5 ns
50
200 MHz
5 ns
55
183 MHz
5.5 ns
60
166 MHz
6 ns
Features
s 4 banks x 512K x 32 organization
s High speed data transfer rates with system
frequency up to 225 MHz
s Data Mask for Write Control (DM)
s Four Banks controlled by BA0 & BA1
s Programmable CAS Latency: 3, 4
s Programmable Wrap Sequence: Sequential
or Interleave
s Programmable Burst Length:
2, 4, 8 full page for Sequential Type
2, 4, 8 full page for Interleave Type
s Automatic and Controlled Precharge Command
s Suspend Mode and Power Down Mode
s Auto Refresh and Self Refresh
s Refresh Interval: 2048 cycles/16ms
s Available in 100-pin TQFP
s SSTL-2 Compatible I/Os
s Double Data Rate (DDR)
s Bidirectional Data Strobe (DQs) for input and
output data, active on both edges
s On-Chip DLL aligns DQ and DQs transitions with
CLK transitions
s Differential clock inputs CLK and CLK
s Power Supply 3.3V ± 0.3V
Description
The V58C3643204SAT is a four bank DDR
DRAM organized as 4 banks x 512K x 32. The
V58C3643204SAT achieves high speed data
transfer rates by employing a chip architecture that
prefetches multiple bits and then synchronizes the
output data to a system clock
All of the control, address, circuits are synchro-
nized with the positive edge of an externally sup-
plied clock. I/O transactions are possible on both
edges of DQS.
Operating the four memory banks in an inter-
leaved fashion allows random access operation to
occur at a higher rate than is possible with standard
DRAMs. A sequential and gapless data rate is pos-
sible depending on burst length, CAS latency and
speed grade of the device.
Device Usage Chart
Operating
Temperature
Range
Package Outline
100-pin TQFP
0°C to 70°C
•
CLK Cycle Time (ns)
-45 -50 -55 -60
•
•
•
•
Power
Std.
L
•
•
Temperature
Mark
Blank
V58C3643204SAT Rev. 1.4 August 2001
1