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Preliminary
A42U0616 Series
1M X 16 CMOS DYNAMIC RAM WITH EDO PAGE MODE
PRELIMINARY (June, 2001, Version 0.0)
1
AMIC Technology, Inc.
Features
n
Organization: 1,048,576 words X 16 bits
n
Part Identification
- A42U0616 (1K Ref.)
n
Single 2.5V power supply/built-in VBB generator
n
Low power consumption
- Operating: 120mA (-50 max)
-
Standby: 1mA (TTL), 0.2mA (CMOS),
250μA (Self-refresh current)
n
High speed
- 50/60/80 ns
RAS
access time
- 25/30/40 ns column address access time
-
13/15/20 ns
CAS
access time
-
20/25/35 ns EDO Page Mode Cycle Time
n
Separate
CAS
(
UCAS
,
LCAS
) for byte selection
n
Fast Page Mode with Extended Data Out
n
Read-modify-write,
RAS
-only,
CAS
-before-
RAS
,
Hidden refresh capability
n
TTL-compatible, three-state I/O
n
JEDEC standard packages
-
400mil, 42-pin SOJ
-
400mil, 50/44 TSOP type II package
General Description
The A42U0616 is a new generation randomly accessed
memory for graphics, organized in a 1,048,576 -word by
16-bit configuration. This product can execute Write and
Read operation via
CAS
pin.
The A42U0616 offers an accelerated Fast Page Mode
cycle with a feature called Extended Data Out (EDO).
Pin Configuration
n
SOJ
n
TSOP
VCC
I/O
0
I/O
1
I/O
2
I/O
3
VCC
NC
NC
NC
A0
A1
A2
A3
A4
VSS
A5
A6
A7
A8
I/O
13
I/O
12
VSS
I/O
14
I/O
15
VSS
A
23
22
WE
RAS
NC
OE
A9
I/O
4
I/O
5
I/O
6
I/O
7
UCAS
LCAS
NC
I/O
8
I/O
9
I/O
10
I/O
11
20
21
19
18
12
13
14
15
16
17
11
10
9
8
7
6
5
4
3
2
1
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
VCC
I/O
0
I/O
1
I/O
2
I/O
3
VCC
NC
NC
A0
A1
A2
A3
A4
VSS
A5
A6
A7
A8
I/O
13
I/O
12
VSS
I/O
14
I/O
15
VSS
A
24
23
WE
RAS
NC
I/O
4
I/O
5
I/O
6
I/O
7
NC
NC
LCAS
UCAS
OE
A9
NC
I/O
8
I/O
9
I/O
10
I/O
11
21
22
20
19
13
14
15
16
17
18
12
10
11
9
8
7
6
5
4
3
2
1
25
26
27
28
29
30
31
32
33
35
34
36
37
38
39
40
41
42
43
44
VCC
VCC
NC
This allow random access of up to 1024(1K Ref.) words
within a row at a 50/40/28 MHz EDO cycle, making the
A42U0616 ideally suited for graphics, digital signal
processing and high performance computing systems.
Pin Descriptions
Symbol
Description
A0 - A9
I/O
0
- I/O
15
Address Inputs (1K product)
Data Input/Output
Row Address Strobe
RAS
LCAS
Column Address Strobe for Lower Byte
(I/O
0
– I/O
7
)
Column Address Strobe for Upper Byte
(I/O
8
– I/O
15
)
Write Enable
UCAS
WE
OE
VCC
VSS
NC
Output Enable
2.5V Power Supply
Ground
No Connection