MT49H32M18CHT-25:A Micron Technology Inc, MT49H32M18CHT-25:A Datasheet - Page 8

• Manufacturer Part Number: MT49H32M18CHT-25:A
• Manufacturer: Micron Technology Inc
• Type: RLDRAMr

Specifications of MT49H32M18CHT-25:A

• Organization: 32Mx18
• Address Bus: 24b
• Operating Supply Voltage (typ): 1.8V
• Package Type: FBGA
• Operating Temp Range: 0C to 95C
• Operating Supply Voltage (max): 1.9V
• Operating Supply Voltage (min): 1.7V
• Supply Current: 675mA
• Pin Count: 144
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Compliant

Figure 3: Functional Block Diagram – 64 Meg x 9
Functional Block Diagrams
BA0–BA2
A0–A21
REF#
WE#
CK#
CS#
CK
1
ZQ
25
Address
register
Mode register
Notes:
ODT control
Control
logic
18
1. Example for BL = 2; column address will be reduced with an increase in burst length.
2. 16 = (length of burst) x 2^(number of column addresses to WRITE FIFO and READ logic).
Refresh
counter
14
8
3
14
8
address
1
Row-
MUX
Column-
counter/
address
control
14
latch
Bank
logic
ZQ CAL
decoder
Bank 0
address
latch
row-
and
8
1
8
8
16,384
5
(16,384 x 32 x 16 x 9)
Sense amplifiers
DQM mask logic
SENSE AMPLIFIERS
Output drivers
I/O gating
memory
Column
decoder
Bank 0
Bank 0
array
16,384
32
Bank 1
Bank 2
Bank 3
Bank 4
Bank 5
Bank 6
Bank 7
2
3
1
288
288
288
READ
logic
3
1
WRITE
drivers
FIFO
and
CLK
in
n
n
n
9
9
n
latch
9
9
DQ
ODT control
ODT control
generator
QK/QK#
9
ZQ CAL
9
2
V
Drivers
RCVRS
TT
2
R
CK/CK#
TT
DLL
R
TT
V
TT
(0 ....8)
Q0–Q8
QVLD
QK0/QK0#
DK/DK#
D0–D8
DM