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TMS416409A Datasheet(PDF) 4 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. TMS416409A
Description  4194304 BY 4-BIT EXTENDED DATA OUT DYNAMIC RANDOM-ACCESS MEMORIES
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Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
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TMS416409A Datasheet(HTML) 4 Page - National Semiconductor (TI)

 
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TMS416409A, TMS417409A, TMS426409A, TMS427409A
4194304 BY 4-BIT EXTENDED DATA OUT
DYNAMIC RANDOM-ACCESS MEMORIES
SMKS893B – AUGUST 1996 – REVISED APRIL 1997
4
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
functional block diagram
TMS416409A, TMS426409A
R
o
w
D
e
c
o
d
e
A0
A1
A11
Timing and Control
Column-
Address
Buffers†
Row-
Address
Buffers
I/O
Buffers
Data-
In
Reg.
Data-
Out
Reg.
Column Decode
Sense Amplifiers
64
256K Array
256K Array
256K Array
RAS
CAS
W
DQ1 – DQ4
4
4
OE
10
12
12
4
4
† Column addresses A10 and A11 are not used.
TMS417409A, TMS427409A
A0
A1
A10
32
Timing and Control
Column-
Address
Buffers
Row-
Address
Buffers
I/O
Buffers
Data-
In
Reg.
Data-
Out
Reg.
Column Decode
Sense Amplifiers
R
o
w
D
e
c
o
d
e
32
256K Array
256K Array
256K Array
256K Array
256K Array
256K Array
RAS
CAS
W
DQ1 – DQ4
4
4
OE
11
11
11
4
4


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