
Siemens AG
8M × 32-Bit Dynamic RAM Module SMALL OUTLINE MEMORY MODULE
The HYM 328020GD -50/-60 is a 32 MByte DRAM module organized as 8 388 608 words by 32-bit in a 72-pin, dual read-out, small outline package comprising four HYB 3165160T 4M × 16 DRAMs in 500 mil wide TSOPII-54 - packages mounted together with four 0.2 µF ceramic decoupling capacitors on a PC board. Each HYB 3165800T is described in the data sheet and is fully electrically tested and processed according to Siemens standard quality procedure prior to module assembly. After assembly onto the board, a further set of electrical tests is performed.
Preliminary Information
• 8 388 608 words by 32-bit organization
• Fast access and cycle time
50 ns access time
95 ns cycle time (-50 version)
60 ns access time
110 ns cycle time (-60 version)
• Fast page mode capability with
35 ns cycle time (-50 version)
40 ns cycle time (-60 version)
• Single + 3.3 V (± 0.3 V) supply
• Low power dissipation
max. 2016 mW active (-50 version)
max. 1728 mW active (-60 version)
LVCMOS– 3.6 mW standby
LVTTL – 28.8 mW standby
• CAS-before-RAS refresh, RAS-only-refresh, Self Refresh
• 4 decoupling capacitors mounted on substrate
• All inputs, outputs and clock fully TTL compatible
• 72 pin, dual read-out, two bank, Small Outline DIMM Module
• Utilizes four 4M × 16 -DRAMs (HYB 3165160T)
• 4096 refresh cycles / 64 ms
• Gold contact pad