
128Mx72 bits
PC133 SDRAM Registered DIMM
with PLL, based on 64Mx4 SDRAM with LVTTL, 4 banks & 8K
HYM72V12C736B(L)S4 Series
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. 0.4/Dec. 2002 1
DESCRIPTION
The HYM72V12C736B(L)S4 Series are 128Mx72bits ECC Synchronous DRAM Modules. The modules are composed
of thirty six 64Mx4bits CMOS Synchronous DRAMs in 400mil 54pin TSOP-II stack package, one 2Kbit EEPROM in
8pin TSSOP package on a 168pin glass-epoxy printed circuit board. One 0.22uF and one 0.0022uF decoupling capac-
itors per each SDRAM are mounted on the PCB.
The HYM72V12C736B(L)S4 Series are Dual In-line Memory Modules suitable for easy interchange and addition of
1Gbytes memory. The HYM72V12C736B(L)S4 Series are fully synchronous operation referenced to the positive edge
of the clock . All inputs and outputs are synchronized with the rising edge of the clock input. The data paths are inter-
nally pipelined to achieve very high bandwidth.
FEATURES
ORDERING INFORMATION
Part No.
Clock
Frequency
Internal
Bank
Ref.
Power
SDRAM
Package
Plating
HYM72V12C736BS4-K
133MHz
4 Banks
8K
Normal
TSOP-II
Gold
HYM72V12C736BS4-H
HYM72V12C736BLS4-K
Low Power
HYM72V12C736BLS4-H
168pin SDRAM Registered DIMM
Serial Presence Detect with EEPROM
1.70” (43.18mm) Height PCB with double sided
components
Single 3.3
0.3V power supply
All device pins are compatible with LVTTL interface
Data mask function by DQM
SDRAM internal banks : four banks
Module bank : two physical banks
Auto refresh and self refresh
8192 refresh cycles / 64ms
Programmable Burst Length and Burst Type
- 1, 2, 4 or 8 or Full page for Sequential Burst
- 1, 2, 4 or 8 for Interleave Burst
Programmable CAS Latency ; 2, 3 Clocks