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Hynix Semiconductor - Registered DDR SDRAM DIMM

Numéro de référence HYMD264G726C4-K
Description Registered DDR SDRAM DIMM
Fabricant Hynix Semiconductor 
Logo Hynix Semiconductor 





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HYMD264G726C4-K fiche technique
DESCRIPTION
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Registered DDR SDRAM DIMM
HYMD264G726C(L)4-M/K/H/L
Hynix HYMD264G726C(L)4-M/K/H/L series is registered 184-pin double data rate Synchronous DRAM Dual In-Line
Memory Modules (DIMMs) which are organized as 64Mx72 high-speed memory arrays. Hynix HYMD264G726C(L)4-M/
K/H/L series consists of eighteen 64Mx4 DDR SDRAM in 400mil TSOP II packages on a 184pin glass-epoxy substrate.
Hynix HYMD264G726C(L)4-M/K/H/L series provide a high performance 8-byte interface in 5.25" width form factor of
industry standard. It is suitable for easy interchange and addition.
Hynix HYMD264G726C(L)4-M/K/H/L series is designed for high speed of up to 133MHz and offers fully synchronous
operations referenced to both rising and falling edges of differential clock inputs. While all addresses and control
inputs are latched on the rising edges of the clock, Data, Data strobes and Write data masks inputs are sampled on
both rising and falling edges of it. The data paths are internally pipelined and 2-bit prefetched to achieve very high
bandwidth. All input and output voltage levels are compatible with SSTL_2. High speed frequencies, programmable
latencies and burst lengths allow variety of device operation in high performance memory system.
Hynix HYMD264G726C(L)4-M/K/H/L series incorporates SPD(serial presence detect). Serial presence detect function is
implemented via a serial 2,048-bit EEPROM. The first 128 bytes of serial PD data are programmed by Hynix to identify
DIMM type, capacity and other the information of DIMM and the last 128 bytes are available to the customer.
FEATURES
• 512MB (64M x 72) Registered DDR DIMM based on
64Mx4 DDR SDRAM
• JEDEC Standard 184-pin dual in-line memory module
(DIMM)
• Error Check Correction (ECC) Capability
• Registered inputs with one-clock delay
• Phase-lock loop (PLL) clock driver to reduce loading
• 2.5V +/- 0.2V VDD and VDDQ Power supply
• All inputs and outputs are compatible with SSTL_2
interface
• Fully differential clock operations (CK & /CK) with
100MHz/125MHz/133MHz
• Programmable CAS Latency 2 / 2.5 supported
• Programmable Burst Length 2 / 4 / 8 with both
sequential and interleave mode
• tRAS Lock-out function supported
• Internal four bank operations with single pulsed RAS
• Auto refresh and self refresh supported
• 8192 refresh cycles / 64ms
ORDERING INFORMATION
Part No.
HYMD264G726C(L)4-M
HYMD264G726C(L)4-K
HYMD264G726C(L)4-H
HYMD264G726C(L)4-L
Power Supply
VDD=2.5V
VDDQ=2.5V
Clock Frequency
133MHz (*DDR266:2-2-2)
133MHz (*DDR266A)
133MHz (*DDR266B)
100MHz (*DDR200)
Interface
SSTL_2
Form Factor
184pin Registered DIMM
5.25 x 1.7 x 0.15 inch
* JEDEC Defined Specifications compliant
This document is a general product description and is subject to change without notice. Hynix Semiconductor does not assume any
responsibility for use of circuits described. No patent licenses are implied.
Rev. 0.1 /Mar. 2003
1

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