T224162B-22 TMT [Taiwan Memory Technology], T224162B-22 Datasheet

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T224162B-22

Manufacturer Part Number
T224162B-22
Description
256K x 16 DYNAMIC RAM EDO PAGE MODE
Manufacturer
TMT [Taiwan Memory Technology]
Datasheet
tm
DRAM
Taiwan Memory Technology, Inc. reserves the right P. 1
to change products or specifications without notice.
FEATURES
OPTION
TIMING
PACKAGE
GENERAL DESCRIPTION
memory containing 4,194,304 bits organized in a x16
configuration. The T224162B has both BYTE
WRITE and WORD WRITE access cycles via two
Data Output.
determined by the first CAS to transition low and
by the last to transition back high. Use only one of
the two CAS and leave the other staying high during
WRITE will result in a BYTE WRITE.
transiting low in a WRITE cycle will write data into
the lower byte (IO1~IO8), and CASH transiting low
will write data into the upper byte (IO9~16).
CAS pins. It offers Fast Page mode with Extended
50ns
Industry-standard x 16 pinouts and timing
functions.
Single 5V ( 10%) power supply.
All device pins are TTL- compatible.
512-cycle refresh in 8ms.
Refresh modes: RAS only, CAS BEFORE
Extended data-out (EDO) PAGE MODE
access cycle.
BYTE WRITE and BYTE READ access
cycles.
22ns
25ns
28ns
35ns
45ns
SOJ
TSOP(II)
The T224162B is a randomly accessed solid state
The T224162B
RAS
(CBR) and HIDDEN.
CH
TE
50 MHz
MARKING
S
125 MHz
100 MHz
100 MHz
J
83 MHz
60 MHz
EDO
CAS
function and timing are
MARKING
-50
-22
-25
-28
-35
-45
CASL
PIN ASSIGNMENT ( Top View )
RAS
RAS
Vcc
I/01
I/02
I/03
I/04
Vcc
I/05
I/06
I/07
I/08
WE
Vcc
I/01
I/02
I/03
I/04
I/05
I/06
I/07
I/08
NC
NC
NC
Vcc
Vcc
WE
Vcc
A0
A1
A2
A3
NC
NC
NC
A0
A1
A2
A3
256K x 16 DYNAMIC
10
11
12
13
14
15
16
17
18
19
20
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
Publication Date: AUG. 2000
SOJ
TSOP(II)
EDO PAGE MODE
T224162B
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
Revision:L
RAM
Vss
I/016
I/015
I/014
I/013
Vss
I/012
I/011
I/010
I/09
NC
CASL
CASH
OE
A8
A7
A6
A5
A4
VSS
Vss
I/016
I/015
I/014
I/013
Vss
I/012
I/011
I/010
I/09
NC
CASL
CASH
OE
A8
A7
A6
A5
A4
VSS

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T224162B-22 Summary of contents

Page 1

... SOJ J TSOP(II) S GENERAL DESCRIPTION The T224162B is a randomly accessed solid state memory containing 4,194,304 bits organized in a x16 configuration. The T224162B has both BYTE WRITE and WORD WRITE access cycles via two CAS pins. It offers Fast Page mode with Extended Data Output. ...

Page 2

... CASL Input Column Address Strobe /Lower Byte Control WE Input Write Enable OE Input Output Enable Input/ Output Data Input/ Output Vcc Supply Power, 5V Vss Ground Ground Connect T224162B 16 DATA-OUT BUFFER DESCRIPTION Publication Date:AUG. 2000 Revision:L DQ01 . . DQ16 Vcc Vss ...

Page 3

... RAS 4 I cc2 , > RAS CAS 2 I cc3 190 180 170 150 130 110 mA I cc5 5 Icc6 190 180 170 150 130 110 mA Icc7 190 180 170 150 130 110 CAS T224162B may affect reliability. MAX UNITS NOTES 5 Vcc ...

Page 4

... T224162B Max Unit Notes -35 -45 -50 UNIT 85 100 ns ns 115 135 ...

Page 5

... T224162B ) -35 - UNIT ...

Page 6

... T224162B -35 -45 -50 UNIT 2 ...

Page 7

... All IOs controlled, regardless CASL and CASH . 29. Data outputs are measured with a load of 50pF. The output reference levels are =2.0V/0.8V; The input levels are CAS 3.0V/0V. T224162B is tied permanently low, a LATE or READ-MODIFY-WRITE RAS only or CBR) before proper going low. ...

Page 8

... T224162B DON'T CARE UNDEFINED Publication Date: AUG ...

Page 9

... T224162B ...

Page 10

... VAL VAL specification T224162B ...

Page 11

... RAS ONLY REFRESH CYCLE =DON‘T CARE T224162B ...

Page 12

... ORD T224162B ...

Page 13

... J 0.047 ± 0.006 K L 0.150(MAX) y 0.004(MAX) Taiwan Memory Technology, Inc. reserves the right change products or specifications without notice. T224162B DIMENSIONS IN MM 26.035 ± 0.254 10.160 ± 0.127 1.143(MAX) 1.27 ± 0.152 0.483 ± 0.08 0.661 ± 0.080 11.176 ± 0.254 0.280 ± 0.080 0.635(MIN) 9.246 ± ...

Page 14

... L1' L' 0.020±0.004 y Taiwan Memory Technology, Inc. reserves the right change products or specifications without notice. 0.047(max) 0.014(typ.) 0.030(typ.) 0.031 0.004(max T224162B "A" DIMENSIONS IN MM 1.20(max) 0.10±0.05 1.00±0.05 0.35(typ.) 0.80(typ.) 18.41±0.10 11.76±0.20 10.16±0.10 0.80 0.500±0.10 ...

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