HYS64V4120GU is 3.3V 4M x 64-Bit 2 BANK SDRAM Module 3.3V 4M x 72-Bit 2 BANK SDRAM Module manufactured by Siemens Semiconductor Group.
| Part Number | Description |
|---|---|
| HYS64V4120GU-10 | 3.3V 4M x 64-Bit 2 BANK SDRAM Module 3.3V 4M x 72-Bit 2 BANK SDRAM Module |
| HYS64V4200GU-10 | 3.3V 4M x 64/72-Bit 1 BANK SDRAM Module 3.3V 8M x 64/72-Bit 2 BANK SDRAM Module |
| HYS64V4200GU-8 | 3.3V 4M x 64/72-Bit 1 BANK SDRAM Module 3.3V 8M x 64/72-Bit 2 BANK SDRAM Module |
| HYS64V4200GU-8B | 3.3V 4M x 64/72-Bit 1 BANK SDRAM Module 3.3V 8M x 64/72-Bit 2 BANK SDRAM Module |
| HYS64V4220GU-10 | 3.3V 2M x 64/72-Bit 1 BANK SDRAM Module 3.3V 4M x 64/72-Bit 2 BANK SDRAM Module |
The DIMMs use 16 2M x 8 SDRAMs for the 4M x 64 organisation and additional two SDRAMs for the 4M x 72 organisation. Decoupling capacitors are mounted on the PC board. The DIMMs have a serial presence detect, implemented with a serial E 2PROM using the two pin I 2C protocol.
