M34E04B Datasheet, PDF(22/35 Page) STMicroelectronics – 4-Kbit Serial Presence Detect EEPROM compatible

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

M34E04B Datasheet, PDF (22/35 Pages) STMicroelectronics – 4-Kbit Serial Presence Detect EEPROM compatible

◁

Use within a DDR4 DRAM module

Figure 9. Serial presence detect block diagram

M34E04B

ZDÅµÅ½ÄÆµÅ¯ÄÆÅ¯Å½ÆÅ¶ÆµÅµÄÄÆÏ³

^Ï® ^Ï ^Ï¬ ^> ^

s

ZDÅµÅ½ÄÆµÅ¯ÄÆÅ¯Å½ÆÅ¶ÆµÅµÄÄÆÏ²

^Ï® ^Ï ^Ï¬ ^> ^

ZÆÆµÅ¯Å¯Í²ÆµÆ

s

s^^

ZDÅµÅ½ÄÆµÅ¯ÄÆÅ¯Å½ÆÅ¶ÆµÅµÄÄÆÏ±

^Ï® ^Ï ^Ï¬ ^> ^

s s^^ s

ZDÅµÅ½ÄÆµÅ¯ÄÆÅ¯Å½ÆÅ¶ÆµÅµÄÄÆÏ°

^Ï® ^Ï ^Ï¬ ^> ^

s

s^^

ZDÅµÅ½ÄÆµÅ¯ÄÆÅ¯Å½ÆÅ¶ÆµÅµÄÄÆÏ¯

^Ï® ^Ï ^Ï¬ ^> ^

s^^

s

ZDÅµÅ½ÄÆµÅ¯ÄÆÅ¯Å½ÆÅ¶ÆµÅµÄÄÆÏ®

^Ï® ^Ï ^Ï¬ ^> ^

s^^ s s^^

ZDÅµÅ½ÄÆµÅ¯ÄÆÅ¯Å½ÆÅ¶ÆµÅµÄÄÆÏ

^Ï® ^Ï ^Ï¬ ^> ^

s^^

s

ZDÅµÅ½ÄÆµÅ¯ÄÆÅ¯Å½ÆÅ¶ÆµÅµÄÄÆÏ¬

^Ï® ^Ï ^Ï¬ ^> ^

s^^

^>Å¯ÅÅ¶Ä

^Å¯ÅÅ¶Ä

&ÆÅ½ÅµÆÅÄÅµÅ½ÆÅÄÆÄÅ½ÄÆÄ/Ï®Åµ

/Ï¬ÏÏµÏ¯Ï³Ä

1. SA0, SA1 and SA2 are wired at each DRAM module slot in a binary sequence for a maximum of 8 devices.

2. Common clock and common data are shared across all the devices.

22/35

DocID028428 Rev 1

▷