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Description
This document describes ValueRAM's 512M x 64-bit (4GB) DDR3-1333 CL9 SDRAM (Synchronous DRAM), 1Rx8 memory module, based on eight 512M x 8-bit DDR3-1333 FBGA components. The SPD is programmed to JEDEC standard latency DDR3-1333 timing of 9-9-9 at 1.5V. This 204-pin SODIMM uses gold contact fingers. The electrical and mechanical specifications are as follows:
| CL(IDD) | 9 cycles |
| Row Cycle Time (tRCmin) | 49.5ns (min.) |
| Refresh to Active/Refresh Command Time (tRFCmin) | 260ns (min.) |
| Row Active Time (tRASmin) | 36ns (min.) |
| Power (Operating) | 1.980 W* |
| UL Rating | 94 V - 0 |
| Operating Temperature | 0° C to 85° C |
| Storage Temperature | -55° C to +100° C |
Features
- Burst Length: 8 (Interleave without any limit, sequential with starting address “000” only), 4 with tCCD = 4 which does not allow seamless read or write [either on the fly using A12 or MRS]
- Bi-directional Differential Data Strobe
- Internal(self) calibration : Internal self calibration through ZQ pin (RZQ : 240 ohm ± 1%)
- On Die Termination using ODT pin
- Average Refresh Period 7.8us at lower than TCASE 85°C, 3.9us at 85°C < TCASE < 95°C
- Asynchronous Reset
- PCB: Height 1.18” (30mm), double sided component
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