MT48LC64M4A2 Micron Technology, MT48LC64M4A2 Datasheet - Page 8

• 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
ADDRESS
REGISTER
MODE REGISTER
CONTROL
LOGIC
12
COUNTER
REFRESH
13
9
2
13
FUNCTIONAL BLOCK DIAGRAM
ADDRESS
2
ROW-
MUX
16 Meg x 16 SDRAM
COUNTER/
CONTROL
COLUMN-
ADDRESS
LATCH
LOGIC
BANK
13
ADDRESS
DECODER
BANK0
LATCH
ROW-
&
9
8
8192
READ DATA LATCH
DQM MASK LOGIC
SENSE AMPLIFIERS
(8,192 x 512 x 16)
WRITE DRIVERS
I/O GATING
DECODER
COLUMN
MEMORY
BANK0
ARRAY
(x16)
8192
512
BANK1
Micron Technology, Inc., reserves the right to change products or specifications without notice.
BANK2
BANK3
256Mb: x4, x8, x16
16
16
2
REGISTER
REGISTER
OUTPUT
DATA
DATA
INPUT
2
©2002, Micron Technology, Inc.
16
SDRAM
DQML,
DQMH
DQ0-
DQ15