A42L2604 Series
Preliminary
Features
n
Organization: 4,194,304 words X 4 bits
n
Part Identification
- A42L2604 (2K Ref.)
n
Single 3.3V power supply/built-in VBB generator
n
Low power consumption
- Operating: 80mA (-45 max)
-
Standby: 1.0mA (TTL), 1.5mA (CMOS),
350µA (Self-refresh current)
n
High speed
- 45/50 ns RAS access time
- 20/22 ns column address access time
-
12/13 ns CAS access time
-
18/20 ns EDO Page Mode Cycle Time
n
Industrial operating temperature range: -40°C to +85°C
for -U
n
Fast Page Mode with Extended Data Out
n
2K Refresh Cycle in 32ms
n
Read-modify-write, RAS -only, CAS -before- RAS ,
Hidden refresh capability
n
TTL-compatible, three-state I/O
n
JEDEC standard packages
-
300mil, 24/26-pin SOJ
-
300mil, 24/26-pin TSOP type II package
4M X 4 CMOS DYNAMIC RAM WITH EDO PAGE MODE
General Description
The A42L2604 is a new generation randomly accessed
memory for graphics, organized in a 4,194,304-word by
4-bit configuration. This product can execute Write and
Read operation via
CAS
pin.
The A42L2604 offers an accelerated Fast Page Mode
cycle with a feature called Extended Data Out (EDO).
This allow random access of up to 2048(2K Ref.) words
within a row at a 56/50 MHz EDO cycle, making the
A42L2604 ideally suited for graphics, digital signal
processing and high performance computing systems.
Pin Configuration
n
SOJ
n
TSOP
Pin Descriptions
26
25
24
23
VSS
I/O
3
I/O
2
CAS
OE
A9
VCC
I/O
0
I/O
1
WE
RAS
NC
1
2
3
4
26
25
24
23
VSS
I/O
3
I/O
2
CAS
OE
A9
VCC
I/O
0
I/O
1
WE
RAS
NC
1
2
3
4
Symbol
A0 – A10
I/O
0
- I/O
3
RAS
Description
Address Inputs (2K product)
Data Input/Output
Row Address Strobe
Column Address Strobe
Write Enable
Output Enable
3.3V Power Supply
Ground
No Connection
A42L2604S
A42L2604V
5
6
22
21
5
6
22
21
CAS
19
18
17
16
15
14
A8
A7
A6
A5
A4
VSS
A10
A0
A1
A2
A3
VCC
8
9
10
11
12
13
19
18
17
16
15
14
A8
A7
A6
A5
A4
VSS
A10
A0
A1
A2
A3
VCC
8
9
10
11
12
13
WE
OE
VCC
VSS
NC
PRELIMINARY
(June, 2002, Version 0.3)
1
AMIC Technology, Inc.
AMICC [ AMIC TECHNOLOGY ]
