MT40A512M8RH-075EAUT Datasheet, PDF (300/359 Pages) Micron Technology – Automotive DDR4 SDRAM

4Gb: x8, x16 Automotive DDR4 SDRAM
DRAM Package Electrical Specifications
DRAM Package Electrical Specifications
Table 132: DRAM Package Electrical Specifications for x4 and x8 Devices
Parameter
Input/
output
Zpkg
Package delay
Lpkg
Cpkg
DQS_t,
DQS_c
Zpkg
Package delay
Delta Zpkg
Delta delay
Lpkg
Cpkg
Input CTRL Zpkg
pins
Package delay
Lpkg
Cpkg
Input CMD Zpkg
ADD pins _{Package delay}
Lpkg
Cpkg
CK_t, CK_c Zpkg
Package delay
Delta Zpkg
Delta delay
Lpkg
Cpkg
ZQ Zpkg
ZQ delay
ALERT Zpkg
ALERT delay
Symbol
Z_IO
Td_IO
L_IO
C_IO
Z_{IO DQS}
Td_{IO DQS}
DZ_{IO DQS}
DTd_{IO DQS}
L_{IO DQS}
C_{IO DQS}
Z_{I CTRL}
Td_{I CTRL}
L_{I CTRL}
C_{I CTRL}
Z_{I ADD CMD}
Td_{I ADD CMD}
L_{I ADD CMD}
C_{I ADD CMD}
Z_CK
Td_CK
DZ_DCK
DTd_DCK
L_{I CLK}
C_{I CLK}
Z_{O ZQ}
Td_{O ZQ}
Z_{O ALERT}
Td_{O ALERT}
1600/1866/2133/
2400/2666
Min
Max
45
85
14
42
–
3.3
–
0.78
45
85
14
42
–
10
–
5
–
3.3
–
0.78
50
90
14
42
–
3.4
–
0.7
50
90
14
45
–
3.6
–
0.74
50
90
14
42
–
10
–
5
–
3.4
–
0.7
–
100
20
55
40
100
20
55
2933
Min
Max
48
85
14
40
–
3.3
–
0.78
48
85
14
40
–
10
–
5
–
3.3
–
0.78
50
90
14
40
–
3.4
–
0.7
50
90
14
40
–
3.6
–
0.74
50
90
14
42
–
10
–
5
–
3.4
–
0.7
–
100
20
55
40
100
20
55
3200
Min
Max
48
85
14
40
–
3.3
–
0.78
48
85
14
40
–
10
–
5
–
3.3
–
0.78
50
90
14
40
–
3.4
–
0.7
50
90
14
40
–
3.6
–
0.74
50
90
14
42
–
10
–
5
–
3.4
–
0.7
–
100
20
55
40
100
20
55
Unit Notes
ohm 1, 2, 4
ps 1, 3, 4
nH
pF
ohm 1, 2
ps 1, 3
ohm 1, 2, 6
ps 1, 3, 6
nH
pF
ohm 1, 2, 8
ps 1, 3, 8
nH
pF
ohm 1, 2, 7
ps 1, 3, 7
nH
pF
ohm 1, 2
ps 1, 3
ohm 1, 2, 5
ps 1, 3, 5
nH
pF
ohm 1, 2
ps 1, 3
ohm 1, 2
ps 1, 3
Notes:
1. The package parasitic (L and C) are validated using package only samples. The capaci-
tance is measured with V_DD, V_DDQ, V_SS, and V_SSQ shorted with all other signal pins float-
ing. The inductance is measured with V_DD, V_DDQ, V_SS, and V_SSQ shorted and all other sig-
nal pins shorted at the die, not pin, side.
2. Package-only impedance (Zpkg) is calculated based on the Lpkg and Cpkg total for a
given pin where: Zpkg (total per pin) = SQRT (Lpkg/Cpkg).
3. Package-only delay (Tpkg) is calculated based on Lpkg and Cpkg total for a given pin
where: Tdpkg (total per pin) = SQRT (Lpkg × Cpkg).
CCMTD-1725822587-10418
4gb_auto_ddr4_sdram_z90b.pdf - Rev. D 01/17 EN
300
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