MT48LC4M16A2TG-7E IT:G Micron Technology Inc, MT48LC4M16A2TG-7E IT:G Datasheet - Page 23

• Manufacturer Part Number: MT48LC4M16A2TG-7E IT:G
• Description: DRAM Chip SDRAM 64M-Bit 4Mx16 3.3V 54-Pin TSOP-II Tray
• Manufacturer: Micron Technology Inc
• Type: SDRAMr

Specifications of MT48LC4M16A2TG-7E IT:G

• Density: 64 Mb
• Maximum Clock Rate: 143 MHz
• Package: 54TSOP-II
• Address Bus Width: 14 Bit
• Operating Supply Voltage: 3.3 V
• Maximum Random Access Time: 5.4 ns
• Operating Temperature: -40 to 85 °C
• Format - Memory: RAM
• Memory Type: SDRAM
• Memory Size: 64M (4M x 16)
• Speed: 143MHz
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Package / Case: 54-TSOP II
• Organization: 4Mx16
• Address Bus: 14b
• Access Time (max): 5.4ns
• Operating Supply Voltage (typ): 3.3V
• Package Type: TSOP-II
• Operating Temp Range: -40C to 85C
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Supply Current: 150mA
• Pin Count: 54
• Mounting: Surface Mount
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Figure 10:
PDF: 09005aef80725c0b/Source: 09005aef806fc13c
64MSDRAM_2.fm - Rev. N 12/08 EN
READ Command
Data from any READ burst may be truncated with a subsequent READ command, and
data from a fixed-length READ burst may be immediately followed by data from a READ
command. In either case, a continuous flow of data can be maintained. The first data
element from the new burst follows either the last element of a completed burst or the
last desired data element of a longer burst which is being truncated.
The new READ command should be issued x cycles before the clock edge at which the
last desired data element is valid, where x = CL -1. This is shown in Figure 12 on page 25
for CL = 2 and CL = 3; data element n + 3 is either the last of a burst of four or the last
desired of a longer burst. The 64Mb SDRAM uses a pipelined architecture and therefore
does not require the 2n rule associated with a prefetch architecture. A READ command
can be initiated on any clock cycle following a previous READ command. Full-speed
random read accesses can be performed to the same bank, as shown in Figure 13 on
page 26, or each subsequent READ may be performed to a different bank.
A8, A9, A11: x16
A9, A11: x8
A0–A9: x4
A0–A8: x8
A0–A7: x16
BA0, BA1
A11: x4
RAS#
CAS#
CLK
CKE
WE#
CS#
A10
HIGH
DISABLE AUTO PRECHARGE
ENABLE AUTO PRECHARGE
COLUMN
ADDRESS
ADDRESS
23
BANK
DON’T CARE
Micron Technology, Inc., reserves the right to change products or specifications without notice.
64Mb: x4, x8, x16 SDRAM
©2000 Micron Technology, Inc. All rights reserved.
Commands