AM2432...ALV datasheet(156/280 Pages) TI

номер детали	AM2432...ALV

подробное описание детали	AM243x Sitara™ Microcontrollers

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7.10.5.2 DDRSS

For more details about features and additional description information on the device (LP)DDR4 Memory

Interface, see the corresponding subsections within Signal Descriptions and Detailed Description sections.

Table 7-34 and Figure 7-28 present switching characteristics for DDRSS.

Table 7-34. DDRSS Switching Characteristics

see Figure 7-28

NO.

PARAMETER

DDR TYPE

MIN

MAX

UNIT

tc(DDR_CKP/

DDR_CKN)

Cycle time, DDR_CKP and DDR_CKN

LPDDR4

1.25(1)

DDR4

1.25(1)

1.6

(1)

Minimum DDR clock Cycle time will be limited based on the specific memory type (vendor) used in a system and by PCB

implementation. Refer to AM64x\AM243x DDR Board Design and Layout Guidelines for the proper PCB implementation to achieve

maximum DDR frequency.

DDR0_CKP

DDR0_CKN

Figure 7-28. DDRSS Switching Characteristics

For more information, see DDR Subsystem (DDRSS) section in Memory Controllers chapter in the device TRM.

AM2434, AM2432, AM2431

SPRSP65D – APRIL 2021 – REVISED AUGUST 2022

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AM2432...ALV датащи(PDF) 156 Page - Texas Instruments