V54C3128(16/80/40)4VE
128Mbit SDRAM
3.3 VOLT, TSOP II / FBGA
8M X 16, 16M X 8, 32M X 4
6
7PC
7
System Frequency (fCK)
166 MHz
143 MHz
143 MHz
Clock Cycle Time (tCK3)
6 ns
7 ns
7 ns
Clock Access Time (tAC3) CAS Latency = 3
5.4 ns
5.4 ns
5.4 ns
Clock Access Time (tAC2) CAS Latency = 2
5.4 ns
5.4 ns
6 ns
Features
-
-
Description
4 banks x 2Mbit x 16 organization
4 banks x 4Mbit x 8 organization
4 banks x 8Mbit 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, and full page 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: 4096 cycles/64 ms
Available in 54-ball FBGA, 60-ball FBGA, and
54-Pin TSOPII
LVTTL Interface
Single +3.3 V ±0.3 V Power Supply
The V54C3128(16/80/40)4VE is a four bank Synchronous DRAM organized as 4 banks x 2Mbit x 16,
4 banks x 4Mbit x 8, or 4 banks x 8Mbit x 4. The
V54C3128(16/80/40)4VE achieves high speed data
transfer rates up to 166 MHz by employing a chip
architecture that prefetches multiple bits and then
synchronizes the output data to a system clock.
All of the control, address, data input and output
circuits are synchronized with the positive edge of
an externally supplied clock.
Operating the four memory banks in an interleaved fashion allows random access operation to
occur at higher rate than is possible with standard
DRAMs. A sequential and gapless data rate of up to
166 MHz is possible depending on burst length,
CAS latency and speed grade of the device.
Device Usage Chart
Operating
Temperature
Range
Package Outline
C/S/T
6
7PC
7
Std.
Temperature
Mark
0°C to 70°C
•
•
•
•
•
Blank
-40°C to 85°C
•
•
•
•
•
I
V54C3128(16/80/40)4VE Rev. 1.3 June 2011
Access Time (ns)
1
Power
