HYS 72Vxx3xxGR
PC133 Registered SDRAM-Modules
3.3 V 168-pin Registered SDRAM Modules
PC133 128 MByte Module
PC133 256 MByte module
PC133 512 MByte Module
PC133 1 GByte Module
PC133 2 GByte Module
• 168-pin Registered 8 Byte Dual-In-Line
SDRAM Module for PC and Server main
memory applications
• Programmable CAS Latency, Burst Length,
and Wrap Sequence (Sequential &
Interleave)
• One bank 16M × 72, 32M x 72 and 64M × 72 • All inputs and outputs are LVTTL compatible
two bank 128M × 72 and 256M x72
• Serial Presence Detect with E2PROM
organization
• Utilizes SDRAMs in TSOPII-54 packages
• Optimized for ECC applications with very low
with registers and PLL.
input capacitances
• Card Size: 133.35 mm × 43.18 mm × 4.00/
• JEDEC standard Synchronous DRAMs
6.40 mm with Gold contact pads
(SDRAM)Programmable CAS Latency, Burst
(JEDEC MO-161)
Length and Wrap Sequence (Sequential &
Interleave)
• These modules all fully compatible with the
current industry standard PC133 and PC100
specifications
• Single + 3.3 V (± 0.3 V) power supply
• Auto Refresh (CBR) and Self Refresh
• Performance:
speed grade
-7
-7.5
133
7.5
5.4
100
10
Unit
MHz
ns
fCK
tCK
tAC
fCK
tCK
tAC
Clock Frequency (max.) @ CL = 3
Clock Cycle Time (min.) @ CL = 3
Clock Access Time (min.) @ CL= 3
Clock Frequency (max.) @ CL = 2
Clock Cycle Time (min.) @ CL = 2
Clock Access Time (min.) @ CL= 2
133
7.5
5.4
133
7.5
5.4
ns
MHz
ns
6
ns
The HYS 72Vxx3xxGR-7 and -7.5 are industry standard 168-pin 8-byte Dual in-line Memory Modules (DIMMs)
organized as 16M × 72, 32M x 72, 64M × 72, 128M × 72 and 256M x 72 high speed memory arrays designed with
Synchronous DRAMs (SDRAMs) for ECC applications. The 32M x 72 (256Mbyte) registered DIMM module is
available in two versions (12 or 13 row addresses). All control and address signals are registered on-DIMM and
the design incorporates a PLL circuit for the Clock inputs. Use of an on-board register reduces capacitive loading
on the input signals but are delayed by one cycle in arriving at the SDRAM devices. Decoupling capacitors are
mounted on the PC board. The DIMMs use a serial presence detects scheme implemented via a serial E2PROM
using the 2-pin I2C protocol. The first 128 bytes are utilized by the DIMM manufacturer and the second 128 bytes
are available to the end user. All Infineon 168-pin DIMMs provide a high performance, flexible 8-byte interface in
a 133.35 mm long footprint.
INFINEON Technologies
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