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TMS416409A Datasheet(PDF) 1 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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TMS416409A Datasheet(HTML) 1 Page - National Semiconductor (TI)

 
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The TMS41x409A and TMS42x409A series are
16 777 216-bit dynamic random-access memory
(DRAM) devices organized as 4 194 304 words of
four bits each.
These devices feature maximum RAS access
times of 50, 60, and 70 ns. All address and data-in
lines are latched on chip to simplify system
design. Data out is unlatched to allow greater
system flexibility.
description
TMS416409A, TMS417409A, TMS426409A, TMS427409A
4194304 BY 4-BIT EXTENDED DATA OUT
DYNAMIC RANDOM-ACCESS MEMORIES
SMKS893B – AUGUST 1996 – REVISED APRIL 1997
1
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
This
data
sheet
is
applicable
to
all
TMS41x409As and TMS42x409As symbolized
by Revision “B”, Revision “E”, and subsequent
revisions
as
described
in
the
device
symbolization section.
D Organization...4194304 × 4
D Single Power Supply (5 V or 3.3 V)
D Performance Ranges:
ACCESS ACCESS ACCESS
EDO
TIME
TIME
TIME
CYCLE
tRAC
tCAC
tAA
tHPC
MAX
MAX
MAX
MIN
’41x409A-50
50 ns
13 ns
25 ns
20 ns
’41x409A-60
60 ns
15 ns
30 ns
25 ns
’41x409A-70
70 ns
18 ns
35 ns
30 ns
’42x409A-50
50 ns
13 ns
25 ns
20 ns
’42x409A-60
60 ns
15 ns
30 ns
25 ns
’42x409A-70
70 ns
18 ns
35 ns
30 ns
D Extended-Data-Out (EDO) Operation
D CAS-Before-RAS (CBR) Refresh
D Low Power Dissipation
D 3-State Unlatched Output
D High-Reliability Plastic 24/26-Lead
300-Mil-Wide Surface-Mount Small-Outline
J-Lead (SOJ) Package (DJ Suffix) and
24/26-Lead 300-Mil-Wide Surface-Mount
Thin Small-Outline Package (TSOP)
(DGA Suffix)
D Operating Free-Air Temperature Range
0
°C to 70°C
AVAILABLE OPTIONS
DEVICE
POWER
SUPPLY
SELF
REFRESH,
BATTERY
BACKUP
REFRESH
CYCLES
TMS416409A
5 V
4 096 in 64 ms
TMS417409A
5 V
2 048 in 32 ms
TMS426409A
3.3 V
4 096 in 64 ms
TMS427409A
3.3 V
2 048 in 32 ms
The TMS416409A and TMS417409A are offered in a 24 / 26-lead plastic surface-mount SOJ package
(DJ suffix). The TMS426409A and TMS427409A are offered in a 24/26-lead plastic surface-mount SOJ
package (DJ suffix) and a 24 / 26-lead plastic surface-mount TSOP (DGA suffix). These packages are designed
for operation from 0
°C to 70°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PIN NOMENCLATURE
A0 – A11†
Address Inputs
DQ1 – DQ4
Data In / Data Out
CAS
Column-Address Strobe
NC
No Internal Connection
OE
Output Enable
RAS
Row-Address Strobe
VCC
5-V or 3.3-V Supply‡
VSS
Ground
W
Write Enable
† A11 is NC for TMS417409A and TMS427409A.
‡ See Available Options Table
DJ/DGA PACKAGES
( TOP VIEW )
VCC
DQ1
DQ2
W
RAS
A0
A1
A2
A3
VCC
VSS
DQ4
DQ3
CAS
OE
A7
A6
A5
A4
VSS
26
25
24
23
22
18
17
16
15
14
1
2
3
4
5
9
10
11
12
13
A11
A9
21
6
A10
A8
19
8
Copyright
© 1997, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.


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