MT47H32M16BN-3 IT:D Micron Technology Inc, MT47H32M16BN-3 IT:D Datasheet - Page 17
MT47H32M16BN-3 IT:D
Manufacturer Part Number
MT47H32M16BN-3 IT:D
Description
Manufacturer
Micron Technology Inc
Type
DDR2 SDRAMr
Datasheet
1.MT47H32M16BN-3_ITD.pdf
(139 pages)
Specifications of MT47H32M16BN-3 IT:D
Organization
32Mx16
Density
512Mb
Address Bus
15b
Access Time (max)
450ps
Maximum Clock Rate
667MHz
Operating Supply Voltage (typ)
1.8V
Package Type
FBGA
Operating Temp Range
-40C to 85C
Operating Supply Voltage (max)
1.9V
Operating Supply Voltage (min)
1.7V
Supply Current
250mA
Pin Count
84
Mounting
Surface Mount
Operating Temperature Classification
Industrial
Lead Free Status / Rohs Status
Compliant
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Table 3: FBGA 84-Ball – x16 and 60-Ball – x4, x8 Descriptions
PDF: 09005aef82f1e6e2
Rev. M 9/08 EN
M8, M3, M7,
N2, N8, N3,
N7, P2, P8,
Number
x16 Ball
P3, M2,
P7, R2
L2, L3
J8, K8
K2
–
x4, x8 Ball
H8, H3, H7,
J7, K2, K8,
Number
J2, J8, J3,
K3, H2,
K7, L2,
G2, G3
E8, F8
L8
F2
–
A11, A12,
BA0, BA1
A11, A12
Symbol
A9, A10,
A9, A10,
CK, CK#
A0–A2,
A3–A5,
A6–A8,
A0–A2,
A3–A5,
A6–A8,
A13
CKE
Input
Input
Input
Input
Input
Type
Description
Address inputs: Provide the row address for ACTIVATE com-
mands, and the column address and auto precharge bit (A10) for
READ/WRITE commands, to select one location out of the memory
array in the respective bank. A10 sampled during a PRECHARGE
command determines whether the PRECHARGE applies to one
bank (A10 LOW, bank selected by BA[2:0]) or all banks (A10 HIGH).
The address inputs also provide the op-code during a LOAD MODE
command.
Address inputs: Provide the row address for ACTIVATE com-
mands, and the column address and auto precharge bit (A10) for
READ/WRITE commands, to select one location out of the memory
array in the respective bank. A10 sampled during a PRECHARGE
command determines whether the PRECHARGE applies to one
bank (A10 LOW, bank selected by BA[2:0]) or all banks (A10 HIGH).
The address inputs also provide the op-code during a LOAD MODE
command.
Bank address inputs: BA[1:0] define to which bank an ACTIVATE,
READ, WRITE, or PRECHARGE command is being applied. BA[2:0]
define which mode register including MR, EMR, EMR(2), and
EMR(3) is loaded during the LOAD MODE command.
Clock: CK and CK# are differential clock inputs. All address and con-
trol input signals are sampled on the crossing of the positive edge
of CK and negative edge of CK#. Output data (DQ and DQS/DQS#)
is referenced to the crossings of CK and CK#.
Clock enable: CKE (registered HIGH) activates and CKE (registered
LOW) deactivates clocking circuitry on the DDR2 SDRAM. The specif-
ic circuitry that is enabled/disabled is dependent on the DDR2
SDRAM configuration and operating mode. CKE LOW provides pre-
charge power-down and SELF REFRESH operations (all banks idle),
or ACTIVATE power-down (row active in any bank). CKE is synchro-
nous for power-down entry, power-down exit, output disable, and
for SELF REFRESH entry. CKE is asynchronous for SELF REFRESH exit.
Input buffers (excluding CK, CK#, CKE, and ODT) are disabled dur-
ing POWER-DOWN. Input buffers (excluding CKE) are disabled dur-
ing SELF REFRESH. CKE is an SSTL_18 input but will detect a
LVCMOS LOW level once Vdd is applied during first power-up. Af-
ter Vref has become stable during the power-on and initialization
sequence, it must be maintained for proper operation of the CKE
receiver. For proper SELF-REFRESH operation, Vref must be main-
tained.
17
Micron Technology, Inc. reserves the right to change products or specifications without notice.
Ball Assignments and Descriptions
512Mb: x4, x8, x16 DDR2 SDRAM
© 2004 Micron Technology, Inc. All rights reserved.
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