参数资料
型号: MT42L128M64D4LD-3 IT:A
厂商: Micron Technology Inc
文件页数: 133/164页
文件大小: 0K
描述: IC LPDDR2 SDRAM 8GBIT 220FBGA
标准包装: 1,000
格式 - 存储器: RAM
存储器类型: 移动 LPDDR2 SDRAM
存储容量: 8G(128M x 64)
速度: 333MHz
接口: 并联
电源电压: 1.14 V ~ 1.3 V
工作温度: -25°C ~ 85°C
封装/外壳: 220-VFBGA
供应商设备封装: 220-FBGA(14x14)
包装: 散装
2Gb: x16, x32 Mobile LPDDR2 SDRAM S4
Output Driver Impedance
MM PUPD =
R ONPU – R ONPD
R ON,nom
× 100
For example, with MM PUPD (MAX) = 15% and R ONPD = 0.85, RON PU must be less than 1.0.
Output Driver Temperature and Voltage Sensitivity
If temperature and/or voltage change after calibration, the tolerance limits widen.
Table 79: Output Driver Sensitivity Definition
Resistor
R ONPD
V OUT
0.5 × V DDQ
Min
85 – ( dR ON dT Δ T |) – ( dR ON dV Δ V |)
Max
115 – ( dR ON dT Δ T |) – ( dR ON dV Δ V |)
Unit
%
R ONPU
Notes:
1. Δ T = T - T (at calibration). Δ V = V - V (at calibration).
2. dR ON dT and dR ON dV are not subject to production testing; they are verified by design
and characterization.
Table 80: Output Driver Temperature and Voltage Sensitivity
Symbol
R ONPD
R ONPU
Parameter
R ON temperature sensitivity
R ON voltage sensitivity
Min
0.00
0.00
Max
0.75
0.20
Unit
%/?C
%/mV
Output Impedance Characteristics Without ZQ Calibration
Output driver impedance is defined by design and characterization as the default set-
ting.
Table 81: Output Driver DC Electrical Characteristics Without ZQ Calibration
RON nom
Ω
Ω
Ω
Ω
Ω
Ω
Resistor
R ON34PD
R ON34PU
R ON40PD
R ON40PU
R ON48PD
R ON48PU
R ON60PD
R ON60PU
R ON80PD
R ON80PU
R ON120PD
R ON120PU
V OUT
0.5 × V DDQ
0.5 × V DDQ
0.5 × V DDQ
0.5 × V DDQ
0.5 × V DDQ
0.5 × V DDQ
0.5 × V DDQ
0.5 × V DDQ
0.5 × V DDQ
0.5 × V DDQ
0.5 × V DDQ
0.5 × V DDQ
Min
0.70
0.70
0.70
0.70
0.70
0.70
0.70
0.70
0.70
0.70
0.70
0.70
Typ
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
Max
1.30
1.30
1.30
1.30
1.30
1.30
1.30
1.30
1.30
1.30
1.30
1.30
Unit
R ZQ /7
R ZQ /7
R ZQ /6
R ZQ /6
R ZQ /5
R ZQ /5
R ZQ /4
R ZQ /4
R ZQ /3
R ZQ /3
R ZQ /2
R ZQ /2
Notes:
1. Applies across entire operating temperature range without calibration.
2. R ZQ
Ω
PDF: 09005aef83f3f2eb
2gb_mobile_lpddr2_s4_g69a.pdf – Rev. N 3/12 EN
133
Micron Technology, Inc. reserves the right to change products or specifications without notice.
2010 Micron Technology, Inc. All rights reserved.
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