
Siemens AG
1M × 36-Bit Dynamic RAM Module (2M × 18-Bit Dynamic RAM Module)
The HYM 361120/40S/GS-60/-70 is a 4 MByte DRAM module organized as 1 048 576 words by 36-bit in a 72-pin single-in-line package comprising four HYB 511000BJ 1M × 1 DRAMs and eight HYB 514400BJ 1M × 4 DRAMs in 300 mil wide SOJ-packages mounted together with twelve 0.2 µF ceramic decoupling capacitors on a PC board.
Advanced Information
• 1 048 576 words by 36-bit organization
(alternative 2 097 152 words by 18-bit)
• Fast access and cycle time
60 ns access time
110 ns cycle time (-60 version)
70 ns access time
130 ns cycle time (-70 version)
• Fast page mode capability with
40 ns cycle time (-60 version)
45 ns cycle time (-70 version)
• Single + 5 V (± 10 %) supply
• Low power dissipation
max. 6820 mW active (-60 version)
max. 6160 mW active (-70 version)
CMOS – 66 mW standby
TTL – 132 mW standby
• CAS-before-RAS refresh, RAS-only-refresh, Hidden refresh
• 12 decoupling capacitors mounted on substrate
• All inputs, outputs and clock fully TTL compatible
• 72 pin Single in-Line Memory Module
• Utilizes four 1M × 1-DRAMs and eight 1M × 4-DRAMs in 300 mil SOJ packages
• 1024 refresh cycles/16 ms
• Tin-Lead contact pads (S - version)
• Gold contact pads (GS - version)
• HYM 321140S: single sided module with 31.75 mm (1250 mil) height
• HYM 321120S: double sided module with 25.40 mm (1000 mil) height