MT49H64M9CHT-25:A Micron Technology Inc, MT49H64M9CHT-25:A Datasheet - Page 20

• Manufacturer Part Number: MT49H64M9CHT-25:A
• Manufacturer: Micron Technology Inc
• Type: RLDRAMr

Specifications of MT49H64M9CHT-25:A

• Organization: 64Mx9
• Address Bus: 25b
• Operating Supply Voltage (typ): 1.8V
• Package Type: FBGA
• Operating Temp Range: 0C to 95C
• Operating Supply Voltage (max): 1.9V
• Operating Supply Voltage (min): 1.7V
• Supply Current: 675mA
• Pin Count: 144
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Compliant

Table 7:
PDF: 09005aef815b2df8/Source: 09005aef811ba111
576Mb_RLDRAM_II_SIO_Core2.fm - Rev. F 6/09 EN
Input AC Logic Levels
Unless otherwise noted: +0°C ≤ T
Notes:
10. If MRS bit A8 is 0, use RQ = 250Ω in the equation in lieu of presence of an external imped-
11. For Vol and Voh, refer to the RLDRAM II HSPICE or IBIS driver models.
7. Vtt is expected to be set equal to Vref and must track variations in the DC level of Vref.
8. On-die termination may be selected using mode register bit 9 (see Figure 11 on page 33). A
9. IOH and IOL are defined as absolute values and are measured at Vddq/2. IOH flows from the
1. All voltages referenced to Vss (GND).
2. The AC and DC input level specifications are as defined in the HSTL standard (that is, the
3. The minimum slew rate for the input signals used to test the device is 2 V/ns in the range
Vddq
Description
Input high (logic 1) voltage
Input low (logic 0) voltage
GND
resistance Rtt from each data input signal to the nearest Vtt can be enabled.
Rtt = 125–185Ω at 95°C T
device, IOL flows into the device.
ance matched resistor.
receiver will effectively switch as a result of the signal crossing the AC input level, and will
remain in that state as long as the signal does not ring back above [below] the DC input
LOW [HIGH] level).
between Vil(AC) and Vih(AC). See illustration below:
Vswing
576Mb: x9, x18 2.5V Vext, 1.8V Vdd, HSTL, SIO, RLDRAM II
Rise time:
2 V/ns
C
≤ +95°C; +1.7V ≤ Vdd ≤ +1.9V
C
.
20
Symbol
Vih
Vil
Micron Technology, Inc., reserves the right to change products or specifications without notice.
Electrical Specifications – AC and DC
Fall time:
2 V/ns
Vref + 0.2
Min
–
Vih(AC) MIN
Vil(AC) MAX
©2004 Micron Technology, Inc. All rights reserved.
Vref - 0.2
Max
–
Units
V
V