MT48LC4M32B2B5-7:G Micron Technology Inc, MT48LC4M32B2B5-7:G Datasheet - Page 57

• Manufacturer Part Number: MT48LC4M32B2B5-7:G
• Description: DRAM Chip SDRAM 128M-Bit 4Mx32 3.3V 90-Pin VFBGA Tray
• Manufacturer: Micron Technology Inc
• Type: SDRAMr

Specifications of MT48LC4M32B2B5-7:G

• Density: 128 Mb
• Maximum Clock Rate: 143 MHz
• Package: 90VFBGA
• Address Bus Width: 14 Bit
• Operating Supply Voltage: 3.3 V
• Maximum Random Access Time: 17|8|5.5 ns
• Operating Temperature: 0 to 70 °C
• Format - Memory: RAM
• Memory Type: SDRAM
• Memory Size: 128M (4Mx32)
• Speed: 143MHz
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Package / Case: 90-VFBGA
• Organization: 4Mx32
• Address Bus: 14b
• Access Time (max): 17/8/5.5ns
• Operating Supply Voltage (typ): 3.3V
• Package Type: VFBGA
• Operating Temp Range: 0C to 70C
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Supply Current: 175mA
• Pin Count: 90
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant

Figure 40:
PDF: 09005aef80872800/Source: 09005aef80863355
128MbSDRAMx32_2.fm - Rev. L 1/09 EN
COMMAND
A0–A9, A11
DQM 0–3
BA0, BA1
CLK
CKE
A10
DQ
t CMS
t CKS
t AS
t AS
t AS
Alternating Bank Read Accesses
ACTIVE
BANK 0
T0
ROW
ROW
t CKH
t CMH
t AH
t AH
t AH
Notes:
t RCD - BANK 0
t RAS - BANK 0
t
t
RC - BANK 0
RRD
t CK
T1
NOP
1. For this example, BL = 4, and CL = 2.
2. A8, A9, and A11 = “Don’t Care.”
ENABLE AUTO PRECHARGE
t CMS
t CL
COLUMN m 2
BANK 0
T2
READ
t CMH
t CH
CAS Latency - BANK 0
T3
NOP
t LZ
t AC
57
BANK 4
ACTIVE
T4
ROW
ROW
D
OUT
t OH
t AC
m
t RCD - BANK 4
Micron Technology, Inc., reserves the right to change products or specifications without notice.
D
T5
OUT
NOP
m + 1
t OH
t AC
ENABLE AUTO PRECHARGE
COLUMN b 2
BANK 4
D
T6
READ
OUT
m + 2
t OH
t AC
CAS Latency - BANK 4
t RP - BANK 0
©2001 Micron Technology, Inc. All rights reserved.
D
128Mb: x32 SDRAM
T7
OUT
NOP
m + 3
t OH
Timing Diagrams
t AC
BANK 0
T8
ROW
ACTIVE
ROW
D
OUT
t RCD - BANK 0
t OH
DON’T CARE
UNDEFINED
t AC
b