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Numéro de référence | V58C265164S | ||
Description | 64 Mbit DDR SDRAM 2.5 VOLT 4M X 16 | ||
Fabricant | Mosel Vitelic Corp | ||
Logo | |||
MOSEL VITELIC
V58C265164S
64 Mbit DDR SDRAM
2.5 VOLT 4M X 16
PRELIMINARY
System Frequency (fCK)
Clock Cycle Time (tCK3)
Clock Cycle Time (tCK2.5)
Clock Cycle Time (tCK2)
4
250 MHz
4 ns
4.8 ns
6 ns
45
225 MHz
4.5 ns
5.4 ns
6.75 ns
5
200 MHz
5 ns
6 ns
7.5 ns
55
183 MHz
5.5 ns
6.6 ns
8.25 ns
Features
I 4 banks x 1Mbit x 16 organization
I High speed data transfer rates with system
frequency up to 250 MHz
I Data Mask for Write Control (DM)
I Four Banks controlled by BA0 & BA1
I Programmable CAS Latency: 2, 2.5, 3
I Programmable Wrap Sequence: Sequential
or Interleave
I Programmable Burst Length:
2, 4, 8 for Sequential Type
2, 4, 8 for Interleave Type
I Automatic and Controlled Precharge Command
I Suspend Mode and Power Down Mode
I Auto Refresh and Self Refresh
I Refresh Interval: 4096 cycles/64 ms
I Available in 66-pin 400 mil TSOP-II
I SSTL-2 Compatible I/Os
I Double Data Rate (DDR)
I Bidirectional Data Strobe (DQs) for input and
output data, active on both edges
I On-Chip DLL aligns DQ and DQs transitions with
CLK transitions
I Differential clock inputs CLK and CLK
I Power supply 2.5V ± 0.2V
Description
The V58C265164S is a four bank DDR DRAM
organized as 4 banks x 1Mbit x 16. The
V58C265164S 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
0°C to 70°C
Package Outline
JEDEC 66 TSOP II
•
CLK Cycle Time (ns)
-4 -45 -5 -55
• •••
Power
Std. L
••
Temperature
Mark
Blank
V58C265164S Rev. 1.7 August 2001
1
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Pages | Pages 30 | ||
Télécharger | [ V58C265164S ] |
No | Description détaillée | Fabricant |
V58C265164S | 64 Mbit DDR SDRAM 2.5 VOLT 4M X 16 | Mosel Vitelic Corp |
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