MT48LC4M16A2B4-6AITJ Datasheet, PDF (8/83 Pages) Micron Technology – SDR SDRAM

Functional Block Diagrams
Figure 1: 16 Meg x 4 Functional Block Diagram
64Mb: x4, x8, x16 SDRAM
Functional Block Diagrams
CKE
CLK
CS#
WE#
CAS#
RAS#
Control logic
Bank 3
Bank 1Bank ²
Mode register
12
A[11:0],
BA0, BA1
14
Address
register
Refresh
counter
12
Row-
address
12
MUX
12
Bank 0
row-
address
latch
4096
and
decoder
Bank 0
memory
array
(4096 x 1024 x 4)
Sense amplifiers
4096
2
Bank
control
2
logic
Column
10
address
10
counter/
latch
I/O gating
DQM mask logic
read data latch
write drivers
1024
(x4)
Column
decoder
1
1
Data
4 _output
register
4
Data
4 _input
register
DQM
DQ[3:0]
PDF: 09005aef80725c0b
64mb_x4x8x16_sdram.pdf - Rev. U 05/13 EN
8
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