AMLOGIC S905D3 - 5.5.3 DDR3;DDR3 L;DDR4;LPDDR3;LPDDR4 SDRAM Specifications

0.6 (2019–07–25)
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5.5.3 DDR3/DDR3L/DDR4/LPDDR3/LPDDR4 SDRAM Specifications
Recommended Operating Conditions
Symbol Parameter Min. Typ. Max. Unit
VDDQ IO supply
voltage (DDR3)
1.425 1.50 1.57 V
VDDQ IO supply
voltage (DDR3L)
1.283 1.35 1.45 V
VDDQ IO supply
voltage (DDR4)
1.14 1.20 1.30 V
VDDQ IO supply
voltage
(LPDDR3)
1.14 1.2 1.30 V
VDDQ IO supply
voltage
(LPDDR4)
1.06 1.1 1.17 V
Vref Input reference
supply voltage
0.49*VDDQ 0.5*VDDQ 0.51*VDDQ V
Note
The minimal VDDQ voltage in sleep mode is defined by memory.
DC specifications - DDR3/DDR3L mode
Symbol Parameter Min. Typ. Max. Unit
VIH DC input voltage
high
Vref + 0.100 VDDQ V
VIL DC input voltage
low
VSSQ Vref-0.100 V
VOH DC output logic
high
0.8*VDDQ V
VOL DC output logic
low
0.2*VDDQ V
RTT Input termination
resistance to
VDDQ/2
100
54
36
120
60
40
140
66
44
ohm
DC specifications – DDR4 mode
Symbol Parameter Min. Typ. Max. Unit
VdlVW_total Rx Mask
voltage-p-p total
136 mv
VOH DC output logic
high
0.9*VDDQ V
VOL DC output logic
low
0.1*VDDQ V
RTT Input termination
resistance to
VDDQ
200 240 280 ohm
100 120 140
S905D3 Quick Reference Manual 5 Operating Conditions
Preliminary Version
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