MT48LC64M4A2 Micron Technology, MT48LC64M4A2 Datasheet - Page 6

• Manufacturer Part Number: MT48LC64M4A2
• Description: (MT48Lxxxx) SYNCHRONOUS DRAM
• Manufacturer: Micron Technology

256Mb: x4, x8, x16 SDRAM
256MSDRAM_E.p65 – Rev. E; Pub. 3/02
BA0, BA1
A0-A12,
CAS#
RAS#
WE#
CKE
CLK
CS#
15
REGISTER
ADDRESS
MODE REGISTER
CONTROL
LOGIC
12
COUNTER
REFRESH
13
11
2
13
FUNCTIONAL BLOCK DIAGRAM
ADDRESS
2
ROW-
MUX
COUNTER/
CONTROL
COLUMN-
ADDRESS
64 Meg x 4 SDRAM
LATCH
LOGIC
BANK
13
DECODER
ADDRESS
BANK0
LATCH
ROW-
&
11
6
8192
READ DATA LATCH
DQM MASK LOGIC
SENSE AMPLIFIERS
(8,192 x 2,048 x 4)
WRITE DRIVERS
I/O GATING
DECODER
MEMORY
COLUMN
ARRAY
BANK0
2048
8192
(x4)
BANK1
Micron Technology, Inc., reserves the right to change products or specifications without notice.
BANK2
BANK3
256Mb: x4, x8, x16
4
4
1
REGISTER
REGISTER
OUTPUT
DATA
INPUT
DATA
©2002, Micron Technology, Inc.
1
SDRAM
4
DQM
DQ0-
DQ3