MT47H256M4BT-5E:A TR Micron Technology Inc, MT47H256M4BT-5E:A TR Datasheet - Page 108

• Manufacturer Part Number: MT47H256M4BT-5E:A TR
• Description: IC DDR2 SDRAM 1GBIT 5NS 92FBGA
• Manufacturer: Micron Technology Inc

Specifications of MT47H256M4BT-5E:A TR

• Format - Memory: RAM
• Memory Type: DDR2 SDRAM
• Memory Size: 1G (256M x 4)
• Speed: 5ns
• Interface: Parallel
• Voltage - Supply: 1.7 V ~ 1.9 V
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 92-FBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 557-1206-1

Figure 63: Bank Write – Without Auto Precharge
PDF: 09005aef821ae8bf
1GbDDR2.pdf – Rev. T 02/10 EN
Bank select
DQS, DQS#
Command
Address
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 and AL = 0 in the case shown.
3. Disable auto precharge.
4. “Don’t Care” if A10 is HIGH at T9.
5. Subsequent rising DQS signals must align to the clock within
6. DI n = data-in for column n; subsequent elements are applied in the programmed order.
7.
8.
t CK
these times.
t
t
DSH is applicable during
DSS is applicable during
t RCD
NOP 1
T2
t CH
t CL
WRITE 2
Bank x
Col n
3
T3
WL ± t DQSS (NOM)
WL = 2
NOP 1
t
108
T4
t
DQSS (MAX) and is referenced from CK T6 or T7.
DQSS (MIN) and is referenced from CK T5 or T6.
t WPRE
NOP 1
T5
Micron Technology, Inc. reserves the right to change products or specifications without notice.
DI
n
T5n
t DQSL t DQSH t WPST
t RAS
1Gb: x4, x8, x16 DDR2 SDRAM
NOP 1
5
T6
T6n
Transitioning Data
NOP 1
T7
© 2004 Micron Technology, Inc. All rights reserved.
t
DQSS.
t WR
NOP 1
T8
One bank
All banks
Don’t Care
Bank x 4
T9
PRE
WRITE
t RP