MT41J256M8HX-15E IT:D Micron Technology Inc, MT41J256M8HX-15E IT:D Datasheet - Page 63

• Manufacturer Part Number: MT41J256M8HX-15E IT:D
• Description: MICMT41J256M8HX-15E_IT:D 2GB DDR3 SDRAM
• Manufacturer: Micron Technology Inc
• Type: DDR3 SDRAMr

Specifications of MT41J256M8HX-15E IT:D

• Organization: 256Mx8
• Address Bus: 18b
• Maximum Clock Rate: 1.333GHz
• Operating Supply Voltage (typ): 1.5V
• Package Type: FBGA
• Operating Temp Range: -40C to 95C
• Operating Supply Voltage (max): 1.575V
• Operating Supply Voltage (min): 1.425V
• Supply Current: 165mA
• Pin Count: 78
• Mounting: Surface Mount
• Operating Temperature Classification: Industrial
• Lead Free Status / Rohs Status: Compliant

Output Driver Impedance
Figure 27: Output Driver
PDF: 09005aef826aaadc
2Gb_DDR3_SDRAM.pdf – Rev. K 04/10 EN
The output driver impedance is selected by MR1[5,1] during initialization. The selected
value is able to maintain the tight tolerances specified if proper ZQ calibration is per-
formed. Output specifications refer to the default output driver unless specifically
stated otherwise. A functional representation of the output buffer is shown below. The
output driver impedance Ron is defined by the value of the external reference resistor
RZQ as follows:
• R
The individual pull-up and pull-down resistors (R
lows:
• R
• R
To
other
circuitry
such as
RCV, . . .
ON,x
ON(PU)
ON(PD)
= RZQ/y (with RZQ = 240Ω ±1%; x = 34Ω or 40Ω with y = 7 or 6, respectively)
= (V
= (V
Chip in drive mode
Output driver
DDQ
OUT
R
R
ON(PU)
ON(PD)
I
I
PU
PD
)/|I
- V
OUT
OUT
|, when R
)/|I
OUT
63
|, when R
ON(PU)
I
OUT
Micron Technology, Inc. reserves the right to change products or specifications without notice.
is turned off
ON(PD)
V
DQ
V
V
DDQ
OUT
SSQ
2Gb: x4, x8, x16 DDR3 SDRAM
is turned off
ON(PU)
Output Driver Impedance
and R
© 2006 Micron Technology, Inc. All rights reserved.
ON(PD)
) are defined as fol-