MT46V256M4TG-75:A Micron Technology Inc, MT46V256M4TG-75:A Datasheet - Page 62

• Manufacturer Part Number: MT46V256M4TG-75:A
• Description: IC DDR SDRAM 1GBIT 7.5NS 66TSOP
• Manufacturer: Micron Technology Inc

Specifications of MT46V256M4TG-75:A

• Format - Memory: RAM
• Memory Type: DDR SDRAM
• Memory Size: 1G (256M x 4)
• Speed: 7.5ns
• Interface: Parallel
• Voltage - Supply: 2.3 V ~ 2.7 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 66-TSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Figure 34:
PDF: 09005aef80a2f898/Source: 09005aef82a95a3a
DDR_x4x8x16_Core2.fm - 1Gb DDR: Rev. I, Core DDR: Rev. B 12/07 EN
x16 Data Output Timing –
DQ8–DQ15 and UDQS collectively
DQ0–DQ7 and LDQS collectively
DQ (first data no longer valid)
DQ (first data no longer valid)
DQ (first data no longer valid)
DQ (first data no longer valid)
Notes:
DQ (last data valid)
DQ (last data valid)
DQ (last data valid)
DQ (last data valid)
1.
2.
3. DQ transitioning after DQS transition define the
4. DQ0, DQ1, DQ2, DQ3, DQ4, DQ5, DQ6, or DQ7.
5.
6. The data valid window is derived for each DQS transition and is
7. DQ8, DQ9, DQ10, D11, DQ12, DQ13, DQ14, or DQ15.
t
t
transition, and ends with the last valid DQ transition.
byte, and UDQS defines the upper byte.
t
HP is the lesser of
DQSQ is derived at each DQS clock edge, is not cumulative over time, begins with DQS
QH is derived from
UDQS
LDQS 3
CK#
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
CK
4
4
4
4
4
4
4
4
4
4
6
3
7
7
7
7
7
7
7
7
7
7
6
T1
t HP 1
t
DQSQ,
t
CL or
t
HP:
t HP 1
t
t
t
QH =
QH, and Data Valid Window
CH clock transition collectively when a bank is active.
t DQSQ 2
t QH 5
62
t DQSQ 2
T2
t
t QH 5
HP -
Data valid
window
T2
T2
T2
Data valid
t HP 1
window
t
QHS.
T2
T2
T2
Micron Technology, Inc., reserves the right to change products or specifications without notice.
T2n
t DQSQ 2
t QH 5
t DQSQ 2
t QH 5
Data valid
window
t HP 1
T2n
T2n
T2n
Data valid
window
t
DQSQ window. LDQS defines the lower
T2n
T2n
T2n
1Gb: x4, x8, x16 DDR SDRAM
T3
t DQSQ 2
t QH 5
t DQSQ 2
t QH 5
t HP 1
Data valid
window
Data valid
T3
T3
T3
window
T3
T3n
T3
T3
©2003 Micron Technology, Inc. All rights reserved.
t
QH -
t DQSQ 2
t DQSQ 2
t HP 1
t QH 5
t QH 5
t
DQSQ.
Data valid
window
Data valid
T4
T3n
window
T3n
T3n
T3n
T3n
T3n
Operations