SPRUJ40C may 2022 – may 2023
AM62x SKEVM has 2GB, 16-bit wide DDR4 memory with operating speed of up to 1600MT/s. Micron's MT40A1G16KD-062E:E is used. This uses two x8 8Gb Micron dies to make one x16 interface. The DDR memory is mounted on-board (single chip). The Placement and routing of DDR4 device is point to point.
The SK-AM62B and SK-AM62B-P1 RevA EVMs have Micron's MT40A1G16TB-062E:F part due to EOL issue.
The DDR4 requires 1.2 V and thus reduces power demand. The devices require I/O power of 1.2 V, DRAM activating power supply of 2.5 V and 0.6 V reference voltage for control, command and address pins.
DDR4 reset is an active low signal, which is controlled by SoC and the signal is pulled down to set the default active state. A footprint for pull up is also provided.