EM614163 Datasheet, PDF (1/23 Pages) List of Unclassifed Manufacturers – 256K x 16 High Speed EDO DRAM

EtronTech
Em614163A-30/35/40/45
256K x 16 High Speed EDO DRAM
Preliminary
Features
• Fast Access Time: 30/35/40/45ns
• Fast EDO Page Cycle Time: 13.3/15/16/18ns
• EDO Page Mode Operation
• Single +5V ¡Ó10% Power Supply
• Low Power Dissipation
• Individual Byte Control via Dual CAS Inputs
• Three Refresh Modes
• 512-Cycle Refresh in 8ms(9 rows and 9 columns)
• TTL Compatible
• 40-Pin, 400-mil Plastic SOJ Package, or
40/44-Pin, 400-mil Plastic TSOP-II Package.
Ordering Information
Part Number
Speed
Em614163A-30
EM614163TS-30
Em614163A-35
EM614163TS-35
Em614163A-40
30ns
30ns
35ns
35ns
40ns
EM614163TS-40
Em614163A-45
EM614163TS-45
40ns
45ns
45ns
Key Specifications
Package
SOJ
TSOP-II
SOJ
TSOP-II
SOJ
TSOP-II
SOJ
TSOP-II
Speed tRAC
-30 30ns
-35 35ns
-40 40ns
-45 45ns
tCAC
9ns
10ns
11ns
12ns
tAA
16ns
18ns
20ns
22ns
tOEA
9ns
9ns
10ns
10ns
tRC
53ns
60ns
66ns
75ns
tPC
13.3ns
15ns
16ns
18ns
Overview
The Em614163A-30/35/40/45 is a high speed
EDO(Extended Data Output) DRAM organized in
262,144 words by 16 bits. It supports EDO Page
Mode and 16-bit data width for high data bandwidth
applications. The EDO Page Mode is an
accelerated access that provides a shorter page
cycle and a faster data access time than the
traditional Fast Page Mode.
Compared with Fast Page Mode DRAM, the
EDO DRAM data output will be held valid after CAS
goes HIGH, as long as RAS and OE are held LOW
and WE is held HIGH. This feature allows CAS
Pin Assignment (Top View)
40-Pin SOJ
Vcc
1
40
I/ O0
2
39
I/ O1
3
38
I/ O2
4
37
I/ O3
5
36
Vcc
6
35
I/ O4
7
34
I/ O5
8
33
I/ O6
9
32
I/ O7
10
31
NC
11
30
NC
12
29
WE
13
28
RAS
14
27
NC
15
26
A0
16
25
A1
17
24
A2
18
23
A3
19
22
Vcc
20
21
Pin Names
40/44-Pin TSOP-II
Vcc
1
Vss
I/ O0
2
I/O15 _I/O1
3
I/O14 _I/O2
4
I/O13 I/O3
5
I/O12 Vcc
6
Vss
I/ O4
7
I/O11 I/O5
8
I/O10 I/O6
9
I/ O9
I/ O7
10
I/ O8
NC
LCAS
NC
13
UCAS ^NC
14
OE
WE
15
A8
RAS
16
A7
A6
A5
A4
Vss
NC
17
A0
18
A1
19
A2
20
A3
21
Vcc
22
44
V ss
43
I /O 1 5
42
I /O 1 4
41
I /O 1 3
40
I /O 1 2
39
V ss
38
I /O 1 1
37
I /O 1 0
36
I /O 9
35
I /O 8
32
NC
31
LC AS
30
UCAS
29
OE
28
A8
27
A7
26
A6
25
A5
24
A4
23
V ss
A0 - A8
RAS
UCAS
LCAS
WE
OE
I/O0 - I/O15
VCC
VSS
NC
Address Inputs
Row Address Strobe
Column Address Strobe
(Upper Byte Control)
Column Address Strobe
(Lower Byte Control)
Write Enable
Output Enable
Data Input/Output
+5V Power Supply
Ground
No Connection
precharge time to occur without the output data
going invalid. Therefore, the EDO CAS timing can be
condensed to carry more data out in a given period.
The Em614163A-30/35/40/45 fully utilizes the
EDO Page Mode advantages. It allows 512 random
access within a page with a fast cycle time as short
as 13.3/15/16/18 ns.
The Em614163A-30/35/40/45 is ideally suitable
for high performance graphics frame buffers, CD-
ROMs, disk drivers, set top boxes, and DSP
applications.
Etron Technology, Inc.
1F, No. 1, Prosperity Rd. 1, Science-Based Industrial Park, Hsinchu, Taiwan, R.O.C.
TEL: [phone] FAX: [phone]
Etro n Techn olo gy, Inc. reserves th e right to make chan ges to its pro ducts and specificat ion s
without notice.
April 1997