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型号： MC8640DTVU1000NC
厂商： Freescale Semiconductor
文件页数： 42/130页
文件大小： 0K
描述： MPU DUAL E600 994-FCCBGA
标准包装： 1
系列： MPC86xx
处理器类型： 32-位 MPC86xx PowerPC
速度： 1.0GHz
电压： 0.95V
安装类型： 表面贴装
封装/外壳： 994-BCBGA，FCCBGA
供应商设备封装： 994-FCCBGA（33x33）
包装： 托盘
MPC8640 and MPC8640D Integrated Host Processor Hardware Specifications, Rev. 3
Freescale Semiconductor
19
DDR and DDR2 SDRAM
6
DDR and DDR2 SDRAM
This section describes the DC and AC electrical specifications for the DDR SDRAM interface of the
MPC8640. Note that DDR SDRAM is Dn_GVDD(typ) = 2.5 V and DDR2 SDRAM is
Dn_GVDD(typ) = 1.8 V.
6.1
DDR SDRAM DC Electrical Characteristics
Table 13 provides the recommended operating conditions for the DDR2 SDRAM component(s) of the
MPC8640 when Dn_GVDD(typ) = 1.8 V.
Table 14 provides the DDR2 capacitance when Dn_GVDD(typ) =1.8 V.
Table 13. DDR2 SDRAM DC Electrical Characteristics for D
n_GVDD(typ) = 1.8 V
Parameter
Symbol
Min
Max
Unit
Notes
I/O supply voltage
D
n_GVDD
1.71
1.89
V
1
I/O reference voltage
D
n_MVREF
0.49
× Dn_GVDD
0.51
× Dn_GVDD
V2
I/O termination voltage
VTT
D
n_MVREF –0.04
D
n_MVREF + 0.04
V
3
Input high voltage
VIH
D
n_MVREF + 0.125
D
n_GVDD +0.3
V
—
Input low voltage
VIL
–0.3
D
n_MVREF – 0.125
V
—
Output leakage current
IOZ
–50
50
μA4
Output high current (VOUT = 1.420 V)
IOH
–13.4
—
mA
—
Output low current (VOUT = 0.280 V)
IOL
13.4
—
mA
—
Notes:
1. D
n_GVDD is expected to be within 50 mV of the DRAM Dn_GVDD at all times.
2. D
n_MVREF is expected to be equal to 0.5 × Dn_GVDD, and to track Dn_GVDD DC variations as measured at the receiver.
Peak-to-peak noise on D
n_MVREF may not exceed ±2% of the DC value.
3. VTT is not applied directly to the device. It is the supply to which far end signal termination is made and is expected to be
equal to D
n_MVREF. This rail should track variations in the DC level of Dn_MVREF.
4. Output leakage is measured with all outputs disabled, 0 V
≤ VOUT ≤ Dn_GVDD.
Table 14. DDR2 SDRAM Capacitance for D
n_GVDD(typ)=1.8 V
Parameter
Symbol
Min
Max
Unit
Notes
Input/output capacitance: DQ, DQS, DQS
CIO
68
pF
1
Delta input/output capacitance: DQ, DQS, DQS
CDIO
—0.5
pF
1
Note:
1. This parameter is sampled. D
n_GVDD = 1.8 V ± 0.090 V, f = 1 MHz, TA = 25°C, VOUT = Dn_GVDD ÷ 2,
VOUT(peak-to-peak) =0.2 V.
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MC8640DTVU1000HC MPU DUAL E600 1023-FCCBGA
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MC8640DTVU1067NE 功能描述:微处理器 - MPU G8 REV3.0 0.95V 105C RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324
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