MT47H256M4BT-5E:A TR Micron Technology Inc, MT47H256M4BT-5E:A TR Datasheet - Page 120

• 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 74: REFRESH Command-to-Power-Down Entry
Figure 75: ACTIVATE Command-to-Power-Down Entry
PDF: 09005aef821ae8bf
1GbDDR2.pdf – Rev. T 02/10 EN
Note:
Note:
Command
Command
Address
1. The earliest precharge power-down entry may occur is at T2, which is 1 ×
1. The earliest active power-down entry may occur is at T2, which is 1 ×
CK#
CKE
CK#
CKE
CK
CK
REFRESH command. Precharge power-down entry occurs prior to
fied.
VATE command. Active power-down entry occurs prior to
Valid
Valid
T0
T0
REFRESH
VALID
ACT
T1
T1
120
1 t CK
1 x t CK
Power-down 1
Micron Technology, Inc. reserves the right to change products or specifications without notice.
Power-down 1
entry
entry
NOP
NOP
T2
T2
1Gb: x4, x8, x16 DDR2 SDRAM
t CKE (MIN)
t CKE (MIN)
T3
T3
t
RCD (MIN) being satisfied.
Power-Down Mode
© 2004 Micron Technology, Inc. All rights reserved.
Don’t Care
Don’t Care
t
RFC (MIN) being satis-
t
CK after the ACTI-
t
CK after the