MT47H256M8HG-25:A Micron Technology Inc, MT47H256M8HG-25:A Datasheet - Page 101
MT47H256M8HG-25:A
Manufacturer Part Number
MT47H256M8HG-25:A
Description
Manufacturer
Micron Technology Inc
Type
DDR2 SDRAMr
Datasheet
1.MT47H256M8HG-25A.pdf
(134 pages)
Specifications of MT47H256M8HG-25:A
Organization
256Mx8
Address Bus
18b
Access Time (max)
400ps
Maximum Clock Rate
800MHz
Operating Supply Voltage (typ)
1.8V
Package Type
FBGA
Operating Temp Range
0C to 70C
Operating Supply Voltage (max)
1.9V
Operating Supply Voltage (min)
1.7V
Supply Current
190mA
Pin Count
60
Mounting
Surface Mount
Operating Temperature Classification
Commercial
Lead Free Status / RoHS Status
Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MT47H256M8HG-25:A
Manufacturer:
MICROCHIP
Quantity:
1 001
Company:
Part Number:
MT47H256M8HG-25:A
Manufacturer:
MICRON
Quantity:
4 000
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Figure 54: Bank Read – with Auto Precharge
PDF: 09005aef824f87b6
2gbddr2.pdf – Rev. F 12/10 EN
Bank address
Command 1
DQS, DQS#
DQS, DQS#
Case 2: t AC (MAX) and t DQSCK (MAX)
Case 1: t AC (MIN) and t DQSCK (MIN)
Address
DQ 6
DQ 6
CK#
CKE
A10
DM
CK
NOP 1
T0
Notes:
Bank x
ACT
RA
RA
T1
1. NOP commands are shown for ease of illustration; other commands may be valid at
2. BL = 4, RL = 4 (AL = 1, CL = 3) in the case shown.
3. The DDR2 SDRAM internally delays auto precharge until both
4. Enable auto precharge.
5. I/O balls, when entering or exiting High-Z, are not referenced to a specific voltage level,
6. DO n = data-out from column n; subsequent elements are applied in the programmed
t CK
these times.
have been satisfied.
but to when the device begins to drive or no longer drives, respectively.
order.
t RCD
t RAS
t RC
NOP 1
T2
t CH
t CL
READ 2,3
Bank x
Col n
4
T3
AL = 1
prefetch
4-bit
101
NOP 1
T4
t RTP
NOP 1
Micron Technology, Inc. reserves the right to change products or specifications without notice.
T5
t LZ (MIN)
t LZ (MAX)
CL = 3
Internal
precharge
2Gb: x4, x8, x16 DDR2 SDRAM
5
NOP 1
T6
5
t RPRE
t LZ (MIN)
t LZ (MAX)
t RPRE
NOP 1
Transitioning Data
T7
t DQSCK (MIN)
t RP
DO
t DQSCK (MAX)
t AC (MIN)
n
t AC (MAX)
DO
© 2006 Micron Technology, Inc. All rights reserved.
n
T7n
t
RAS (MIN) and
NOP 1
T8
t HZ (MIN)
t HZ (MAX)
T8n
t RPST
t RPST
Don’t Care
Bank x
ACT
RA
5
RA
t
RTP (MIN)
5
READ
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